Hurricane Charley (1986)
Encyclopedia
Hurricane Charley was the costliest tropical cyclone
Tropical cyclone
A tropical cyclone is a storm system characterized by a large low-pressure center and numerous thunderstorms that produce strong winds and heavy rain. Tropical cyclones strengthen when water evaporated from the ocean is released as the saturated air rises, resulting in condensation of water vapor...

 of the 1986 Atlantic hurricane season
1986 Atlantic hurricane season
The 1986 Atlantic hurricane season officially began on June 1, 1986, and lasted until November 30, 1986. These dates conventionally delimit the period of each year when most tropical cyclones form in the Atlantic basin...

. The third tropical storm and second hurricane of the season, Charley formed as a subtropical low
Subtropical cyclone
A subtropical cyclone is a weather system that has some characteristics of a tropical and an extratropical cyclone. As early as the 1950s, meteorologists were unclear whether they should be characterized as tropical or extratropical cyclones. They were officially recognized by the National...

 on August 13 along the Florida panhandle. After moving off the coast of South Carolina, the system transitioned into a tropical cyclone and intensified into a tropical storm on August 15. Charley later attained hurricane status before moving across eastern North Carolina. It gradually weakened over the north Atlantic Ocean before transitioning into an extratropical cyclone
Extratropical cyclone
Extratropical cyclones, sometimes called mid-latitude cyclones or wave cyclones, are a group of cyclones defined as synoptic scale low pressure weather systems that occur in the middle latitudes of the Earth having neither tropical nor polar characteristics, and are connected with fronts and...

 on August 20. Charley's remnants remained identifiable for over a week until after crossing the British Isles and dissipating on August 30.

The storm brought light to moderate precipitation to much of the southeastern United States. In Georgia and South Carolina, the rainfall alleviated drought conditions. In North Carolina, where the hurricane made landfall, tidal flooding and downed trees were the primary impact. The storm brought high winds to southeastern Virginia, where 110,000 people were left without power. Minor damage extended along the Atlantic coastline northward through Massachusetts. One traffic fatality was reported each in North Carolina and Virginia. Three people in Maryland died due to a plane crash related to the storm. Throughout the United States, Hurricane Charley caused an estimated $15 million in damage (1986 USD
United States dollar
The United States dollar , also referred to as the American dollar, is the official currency of the United States of America. It is divided into 100 smaller units called cents or pennies....

). One person drowned in Newfoundland.

As an extratropical cyclone, Charley brought heavy rainfall and strong winds to Ireland and the United Kingdom, causing at least 11 deaths. In Ireland, the rainfall set records for 24 hour totals, including an accumulation of more than 7.8 in (200 mm) which set the record for the greatest daily rainfall total in the country. In the country, the rainfall caused widespread flooding, causing two rivers to exceed their banks. In the Dublin area, 451 buildings were flooded, some up to a depth of 8 ft (2.4 m). In the United Kingdom, the storm flooded rivers and brought down downed trees and power lines.

Meteorological history

Hurricane Charley originated in an area of convection associated with a trough
Trough (meteorology)
A trough is an elongated region of relatively low atmospheric pressure, often associated with fronts.Unlike fronts, there is not a universal symbol for a trough on a weather chart. The weather charts in some countries or regions mark troughs by a line. In the United States, a trough may be marked...

 of low pressure first observed on August 11 across southern Florida and the southeastern Gulf of Mexico. The area of disturbed weather spread northward, spawning a broad low pressure area
Low pressure area
A low-pressure area, or "low", is a region where the atmospheric pressure at sea level is below that of surrounding locations. Low-pressure systems form under areas of wind divergence which occur in upper levels of the troposphere. The formation process of a low-pressure area is known as...

 on August 12. Moving northward over the Florida panhandle, the low became slightly better organized as it merged with a weakening weather front
Weather front
A weather front is a boundary separating two masses of air of different densities, and is the principal cause of meteorological phenomena. In surface weather analyses, fronts are depicted using various colored lines and symbols, depending on the type of front...

. On August 13, the National Hurricane Center
National Hurricane Center
The National Hurricane Center , located at Florida International University in Miami, Florida, is the division of the National Weather Service responsible for tracking and predicting weather systems within the tropics between the Prime Meridian and the 140th meridian west poleward to the 30th...

 (NHC) identified the system as a developing subtropical low
Subtropical cyclone
A subtropical cyclone is a weather system that has some characteristics of a tropical and an extratropical cyclone. As early as the 1950s, meteorologists were unclear whether they should be characterized as tropical or extratropical cyclones. They were officially recognized by the National...

 near Apalachee Bay
Apalachee Bay
Apalachee Bay is a bay in the northeastern Gulf of Mexico occupying an indentation of the Florida coast to the west of where the Florida peninsula joins the United States mainland. It is bordered by Taylor, Jefferson, Wakulla and Franklin counties. The Aucilla, Econfina, St. Marks and Ochlocknee...

 along the northern coast of the Gulf of Mexico. The agency defines a subtropical cyclone as "a non-frontal low pressure system that has characteristics of both tropical and extratropical cyclones."

After becoming a subtropical low, the cyclone tracked northeastward through Georgia, before turning eastward and exiting South Carolina into the Atlantic Ocean. Its track was influenced by the western periphery of the subtropical ridge
Subtropical ridge
The subtropical ridge is a significant belt of high pressure situated around the latitudes of 30°N in the Northern Hemisphere and 30°S in the Southern Hemisphere. It is characterized by mostly calm winds, which acts to reduce air quality under its axis by causing fog overnight, and haze during...

, which is a large belt of high pressure
High pressure area
A high-pressure area is a region where the atmospheric pressure at the surface of the planet is greater than its surrounding environment. Winds within high-pressure areas flow outward due to the higher density air near their center and friction with land...

. While moving over land, the cyclone had become better organized, and on August 15 it transitioned
Tropical cyclogenesis
Tropical cyclogenesis is the term that describes the development and strengthening of a tropical cyclone in the atmosphere. The mechanisms through which tropical cyclogenesis occurs are distinctly different from those through which mid-latitude cyclogenesis occurs...

 into a tropical depression about 70 miles (110 kilometres) southeast of Charleston, South Carolina
Charleston, South Carolina
Charleston is the second largest city in the U.S. state of South Carolina. It was made the county seat of Charleston County in 1901 when Charleston County was founded. The city's original name was Charles Towne in 1670, and it moved to its present location from a location on the west bank of the...

. The depression strengthened further, and based on reports from the Hurricane Hunters
Hurricane Hunters
The Hurricane Hunters are aircraft that fly into tropical cyclones in the North Atlantic Ocean and Northeastern Pacific Ocean for the specific purpose of directly measuring weather data in and around those storms. In the United States, the Air Force, Navy, and NOAA units have all participated in...

, it intensified into Tropical Storm Charley late on August 15. With a weak ridge
Ridge (meteorology)
A ridge is an elongated region of relatively high atmospheric pressure, the opposite of a trough....

 to its north, the storm initially tracked slowly eastward just off the coast of North Carolina, before turning to the north-northeast as a trough approached from the west. A broad cyclone, Charley gradually intensified, and a single ring of convection around the center developed into an eyewall
Eye (cyclone)
The eye is a region of mostly calm weather found at the center of strong tropical cyclones. The eye of a storm is a roughly circular area and typically 30–65 km in diameter. It is surrounded by the eyewall, a ring of towering thunderstorms where the second most severe weather of a cyclone...

. At 1200 UTC
Coordinated Universal Time
Coordinated Universal Time is the primary time standard by which the world regulates clocks and time. It is one of several closely related successors to Greenwich Mean Time. Computer servers, online services and other entities that rely on having a universally accepted time use UTC for that purpose...

 on August 17, it attained hurricane status about 13 mi (21 km) off the North Carolina coastline. About two hours later, Hurricane Charley made landfall
Landfall (meteorology)
Landfall is the event of a tropical cyclone or a waterspout coming onto land after being over water. When a waterspout makes landfall it is reclassified as a tornado, which can then cause damage inland...

 near Cape Fear, and it subsequently moved across the eastern portion of the state.
Hurricane Charley did not weaken while moving over land; instead, it intensified, attaining peak winds of 80 mph (130 km/h) after emerging into the Atlantic Ocean near the North Carolina–Virginia border. Within 12 hours of reaching peak intensity, however, the hurricane weakened to tropical storm status. The approaching trough, which had previously caused Charley to turn northward, forced the hurricane to accelerate northeastward and later eastward, bringing the storm about 80 mi (130 km) southeast of Nantucket, Massachusetts on August 19. As the trough was not very strong, Charley slowly underwent the process of extratropical transition
Extratropical cyclone
Extratropical cyclones, sometimes called mid-latitude cyclones or wave cyclones, are a group of cyclones defined as synoptic scale low pressure weather systems that occur in the middle latitudes of the Earth having neither tropical nor polar characteristics, and are connected with fronts and...

, unlike other tropical cyclones that complete the transition much quicker with a stronger trough. As a result, the storm maintained hybrid, or subtropical characteristics for several days. By August 21, Charley completed the transition south of Atlantic Canada.

After becoming extratropical, Charley re-intensified under baroclinic instability
Baroclinity
In fluid dynamics, the baroclinity of a stratified fluid is a measure of how misaligned the gradient of pressure is from the gradient of density in a fluid...

. The resulting storm was a very large and fairly strong gale that gradually moved across the northern Atlantic Ocean. As an extratropical cyclone, Charley attained an atmospheric pressure
Atmospheric pressure
Atmospheric pressure is the force per unit area exerted into a surface by the weight of air above that surface in the atmosphere of Earth . In most circumstances atmospheric pressure is closely approximated by the hydrostatic pressure caused by the weight of air above the measurement point...

 of 980 mbar
Bar (unit)
The bar is a unit of pressure equal to 100 kilopascals, and roughly equal to the atmospheric pressure on Earth at sea level. Other units derived from the bar are the megabar , kilobar , decibar , centibar , and millibar...

, which was lower than its pressure as a tropical cyclone. On August 24, it spawned a separate extratropical cyclone, which initially moved northeastward before turning and dissipating near Spain. The remnants of Charley accelerated as it approached the British Isles, and after passing south of Ireland it moved across Great Britain on August 27. While in the North Sea
North Sea
In the southwest, beyond the Straits of Dover, the North Sea becomes the English Channel connecting to the Atlantic Ocean. In the east, it connects to the Baltic Sea via the Skagerrak and Kattegat, narrow straits that separate Denmark from Norway and Sweden respectively...

, the cyclone weakened as it executed a counter-clockwise loop, and on August 30 the remnants of Charley dissipated near Denmark as a new circulation developed to its southwest.

North American impact

Southeastern United States

As the hurricane paralleled the east coast of the United States and its exact track and strength were uncertain, there were several tropical cyclone warnings and watches
Tropical cyclone warnings and watches
Warnings and watches are two levels of alert issued by national weather forecasting bodies to coastal areas threatened by the imminent approach of a tropical cyclone of tropical storm or hurricane intensity. They are notices to the local population and civil authorities to make appropriate...

 issued in association with Charley; in a post-storm analysis, the NHC described "the complication of the warning process for this type of situation." Initially, the storm was not expected to affect land. In its first advisory on Charley, the NHC issued a 22% probability of Charley passing within 65 mi (105 km) of land; specifically, it was predicted to be closest to the South Carolina coastline.. About 16 hours prior to the hurricane's landfall, the NHC issued a gale warning between Bogue Inlet
Bogue Banks
Bogue Banks form a barrier island off the mainland of North Carolina in Carteret County. The island, separated from the mainland by Bogue Sound, runs east to west, with the ocean beaches facing due south...

 and Oregon Inlet
Oregon Inlet
Oregon Inlet is an inlet along North Carolina's Outer Banks. It joins the Pamlico Sound with the Atlantic Ocean and separates Bodie Island from Pea Island, which are connected by a 2.5 mile bridge that spans the inlet...

 along the North Carolina coastline, including the Pamlico Sound
Pamlico Sound
Pamlico Sound in North Carolina, is the largest lagoon along the U.S. East Coast, being long and 24 to 48 km wide. It is a body of water separated from the Atlantic Ocean by the Outer Banks, a row of low, sandy barrier islands, including Cape Hatteras. The Neuse and Pamlico rivers flow in...

. When the storm's intensification and track close to land became apparent, the gale warning was replaced by a hurricane warning, and additional gale warnings were issued westward to Topsail Beach
Topsail Beach, North Carolina
Topsail Beach is a town in Pender County, North Carolina, United States. The population was 581 at the 2008 census. It is part of the Wilmington Metropolitan Statistical Area.-Geography:Topsail Beach is located at ....

 and northward to Virginia Beach, Virginia
Virginia Beach, Virginia
Virginia Beach is an independent city located in the Hampton Roads metropolitan area of Virginia, on the Atlantic Ocean at the mouth of the Chesapeake Bay...

. Up to 10,000 people evacuated the Outer Banks, which resulted in traffic jams on roadways heading out of the area. Ocracoke
Ocracoke, North Carolina
Ocracoke is a census-designated place and unincorporated town located at the southern end of Ocracoke Island, located entirely within Hyde County, North Carolina. The population was 769 as of the 2000 census...

 island was partially evacuated by six ferries, although many people were unable to leave and instead rode out the storm on the island.

Hurricane Charley affected at least ten U.S. states, resulting in five total deaths and $15 million in damage (1986 USD). The precursor disturbance to Charley brought rainfall to much of Florida, including a total of 8.61 inches (219 millimetres) in Steinhatchee
Steinhatchee, Florida
Steinhatchee is a Gulf coastal community in the southern part of Taylor County, Florida. Steinhatchee is located at , 33 miles By Hwy 38.09 miles south of the county seat of Perry. Just aross the Steinhatchee River is Jena, which is in Dixie County. Steinhatchee is 19.27 Hwy miles North of The...

; that rainfall maxima was the greatest total associated with Charley within the United States. The system also produced light to moderate rainfall across Georgia and South Carolina, which proved beneficial as the region was in a major drought. However, its heaviest rainfall remained over open waters.

Moving across eastern North Carolina as a minimal hurricane, Charley produced locally strong wind gusts, peaking at 80 mph (130 km/h) in Frisco
Frisco, North Carolina
Frisco is a small unincorporated community on the barrier island of Hatteras Island, between the villages of Buxton and Hatteras. It is located in Dare County, North Carolina, USA, and was previously named Trent, or Trent Woods, but received a new name with the coming of the post office in 1898...

. However, no stations recorded sustained winds of hurricane force. The cyclone dropped rainfall along the coastline, amounting to over 7 in (175 mm) near Manteo
Manteo, North Carolina
Manteo is a town in Dare County, North Carolina, United States, located on Roanoke Island. The population was 1,052 at the 2000 census. It is the county seat of Dare County.-Geography:...

. As it moved ashore, the storm generated high tides reaching 5.78 feet (1.76 metres) at the Duck Coe fishing pier. Near Cape Hatteras, a woman drowned while attempting to drive through a flooded roadway. The hurricane's passage left roads and bridges flooded with up to 3 ft (0.9144 m) of water, including a portion of North Carolina Highway 12 on Hatteras Island
Hatteras Island
Hatteras Island is a barrier island located off the North Carolina coast. Dividing the Atlantic Ocean and the Pamlico Sound, it runs parallel to the coast, forming a bend at Cape Hatteras. It is part of North Carolina's Outer Banks and includes the towns of Rodanthe, Waves, Salvo, Avon, Buxton,...

. Across the Outer Banks, the storm left about 8,000 people without power, but damage was minimal and limited to shingles and roofs. Impact in the state was primarily caused by tidal flooding and downed trees, and a preliminary damage estimate placed total monetary losses at $400,000 (1986 USD).

Northeastern United States and Canada

As Charley moved across eastern North Carolina, hurricane warnings were extended northward, first to Virginia Beach; they were later extended to Cape Charles
Cape Charles, Virginia
Cape Charles is a town in Northampton County, Virginia, United States. The population was 1,134 at the 2000 census.-Geography:Cape Charles is located at ....

, then to the Maryland/Delaware border, and ultimately as far north as Sandy Hook, New Jersey
Sandy Hook, New Jersey
Sandy Hook is a barrier spit, approximately 6.0 miles in length and varying between 0.10 and 1 miles wide in Middletown Township in Monmouth County, along the Atlantic Ocean coast of eastern New Jersey in the United States. The barrier spit encloses the southern entrance of Lower New York Bay...

. Prior to its arrival, the storm resulted in the closure of Norfolk International Airport
Norfolk International Airport
-Baggage Claims:Southwest Airlines #1,Delta Airlines #2,US Airways | American Airlines #3,Continental Airlines|United Express #5- Facilities and aircraft :...

, and more than 9,000 people evacuated the coastline for emergency shelters. Tropical storm force winds spread across southeastern Virginia, with wind gusts reaching 82 mph (133 km/h) on Cape Charles. Offshore, a station on the Chesapeake Bay Bridge-Tunnel
Chesapeake Bay Bridge-Tunnel
The Chesapeake Bay Bridge-Tunnel is a long fixed link crossing the mouth of the Chesapeake Bay and connecting the Delmarva Peninsula's Eastern Shore of Virginia with Virginia Beach and the metropolitan area of Hampton Roads, Virginia...

 recorded sustained winds of 97 mph (157 km/h) with gusts to 104 mph (168 km/h). After the gust, the bridge-tunnel was closed overnight. The winds downed many trees, and in Norfolk, a motorist died after crashing into a downed tree. In Virginia Beach, the winds blew off the roof of a hotel and destroyed two homes under construction. Across the area, the storm left about 110,000 customers without power. Rainfall in Virginia was fairly light, including a 24 hour total of just over 1 in (25 mm) in Norfolk. Strong waves destroyed 250 ft (76 m) of Harrison's Pier in Norfolk. A preliminary damage estimate for the area was $1 million (1986 USD).

Thunderstorms to the north of the circulation brought moderate rainfall to Maryland; the same thunderstorms caused a light aircraft to crash near Baltimore, resulting in the death of its three occupants. Rainfall spread across much of Maryland, peaking at 4.24 in (105 mm) in Hollywood
Hollywood, Maryland
Hollywood is an unincorporated community located within St. Mary's County, Maryland. It was named in 1867, when a storeowner at Thompson's General Store near the Uniontown section of Hollywood required a name for the post office inside the store...

. Tropical storm force winds extended into Delaware, and a peak wind gust of 75 mph (121 km/h) was reported in Rehoboth Beach
Rehoboth Beach, Delaware
Rehoboth Beach is a city in Sussex County, Delaware, United States. According to the 2010 census, the population is 1,327, a decrease of 11.2% from 2000...

. Only isolated and minor damage occurred in Maryland and Delaware. In New Jersey, a hurricane force wind gust was reported on Long Beach Island
Long Beach Island
Long Beach Island is a barrier island and summer colony along the Atlantic Ocean coast of Ocean County, New Jersey in the United States...

, and 1.3 in (33 mm) of rainfall was reported in Atlantic City
Atlantic City, New Jersey
Atlantic City is a city in Atlantic County, New Jersey, United States, and a nationally renowned resort city for gambling, shopping and fine dining. The city also served as the inspiration for the American version of the board game Monopoly. Atlantic City is located on Absecon Island on the coast...

. In the southernmost counties in the state, the winds left about 15,000 electrical customers without power. In New York, after Hurricane Gloria
Hurricane Gloria
Hurricane Gloria was a powerful Cape Verde-type hurricane that formed during the 1985 Atlantic hurricane season and prowled the Atlantic Ocean from September 16 to September 28. Gloria reached Category 4 status on the Saffir-Simpson Hurricane Scale near the Bahamas, but weakened significantly...

 in the previous season left thousands of customers without power, the Long Island Lighting Co. arranged for additional workers for potential power restoration. Light rainfall and gusty winds extended into the New York metropolitan area.

Officials issued gale warnings through Chatham, Massachusetts
Chatham, Massachusetts
Chatham is a town in Barnstable County, Massachusetts, United States, Barnstable County being coextensive with Cape Cod. The population was 6,625 at the 2000 census...

, including Martha's Vineyard
Martha's Vineyard
Martha's Vineyard is an island located south of Cape Cod in Massachusetts, known for being an affluent summer colony....

 and Nantucket. As Charley passed south of Massachusetts, it produced precipitation in the southeastern portion of the state. Nantucket reported 3.20 in (81 mm) of rainfall, and Chatham recorded 2.68 in (68 mm) in a 24 hour period. Nantucket also reported sustained winds of 60 mph (96 km/h), and as the storm passed the island it produced a storm tide of 3.5–4 ft (1–1.2 m). High tides and heavy rain caused significant street flooding on Nantucket. Several boats were damaged, others were beached, and one large boat sunk in Nantucket Harbor. Damage on the island $75,000 (1986 USD).

Before becoming extratropical, the storm brushed the coast of Nova Scotia with wind gusts of 65 mph (105 km/h) and moderate precipitation totaling 4.57 in (116 mm). Strong waves damaged several boats along the coasts of Nova Scotia and New Brunswick, killing one person in St. John's, Newfoundland
St. John's, Newfoundland and Labrador
St. John's is the capital and largest city in Newfoundland and Labrador, and is the oldest English-founded city in North America. It is located on the eastern tip of the Avalon Peninsula on the island of Newfoundland. With a population of 192,326 as of July 1, 2010, the St...

.

European impact

After Charley became extratropical, the United Kingdom Met Office
Met Office
The Met Office , is the United Kingdom's national weather service, and a trading fund of the Department for Business, Innovation and Skills...

 issued weather alerts prior to the arrival of the storm, noting the potential for "extremely heavy rainfall [which would] cause local flooding." In the United Kingdom, the threat of the storm resulted in the cancellation of ferry service between Northern Ireland and Great Britain, as well between Great Britain and France. The extratropical remnants of Hurricane Charley moved across Ireland and United Kingdom with winds of 50 mph (85 km/h). The storm's rainfall significantly affected most of both countries, with the exception of Scotland in the United Kingdom. In the English Channel
English Channel
The English Channel , often referred to simply as the Channel, is an arm of the Atlantic Ocean that separates southern England from northern France, and joins the North Sea to the Atlantic. It is about long and varies in width from at its widest to in the Strait of Dover...

, waves up to 26 ft (8 m) in height breached and flooded a ship; the 31 passengers on board were rescued by helicopters and other ships. Throughout the region, the storm resulted in at least 11 deaths.

First passing just south of Ireland
Ireland
Ireland is an island to the northwest of continental Europe. It is the third-largest island in Europe and the twentieth-largest island on Earth...

 on August 25, the storm dropped heavy rainfall and brought strong winds, significantly affecting the coastline where winds of 65 mph (105 km/h) were reported. Rainfall spread across the entire country, peaking at 11.0 in (280 mm) in Kippure
Kippure
Kippure is a granite mountain that straddles the county boundaries of South Dublin and Wicklow. It is popular for hill walking and outdoor leisure activity owing to its proximity to Dublin city, with its fine views over Dublin Bay towards Howth Head. It has convenient access and easy terrain...

. There, a station reported more than 7.8 in (200 mm) in 24 hours, which set the record for the greatest daily rainfall total in the country. Several 24 hour rainfall records were set during the storm, and new six-hour and twelve-hour record totals at Casement Aerodrome
Casement Aerodrome
Casement Aerodrome or Baldonnel Aerodrome is a military airbase to the south west of Dublin, Ireland situated off the N7 main road route to the south and south west. It is the headquarters and the sole base of the Irish Air Corps, and is also used for other government purposes...

 were set with 1.63 in (41.5 mm) and 2.61 in (66.2 mm), respectively. The rainfall left some areas flooded, particularly in the Dublin area where 451 buildings were inundated, some up to a depth of 8 ft (2.4 m). Preliminarily, it was described as the worst flooding in the history of Dublin
History of Dublin
The City of Dublin can trace its origin back more than 1,000 years, and for much of this time it has been Ireland's principal city and the cultural, educational and industrial centre of the island.-Founding and early history:...

. Two small rivers, the Dodder
River Dodder
The River Dodder is one of the three main rivers of the Dublin region in Ireland, the others being the Liffey, of which the Dodder is the largest tributary, and the Tolka.-Course and system:...

 and the Dargle, overflowed their banks due to the rainfall. The River Dargle overflowed in Bray
Bray
Bray is a town in north County Wicklow, Ireland. It is a busy urban centre and seaside resort, with a population of 31,901 making it the fourth largest in Ireland as of the 2006 census...

, flooding some areas up to a depth of 5 ft (1.5 m) and forcing about 1,000 people to evacuate; several special-needs people were evacuated by boat. The flood, which originated about one mile north of the town, damaged over 500 houses and brought down several trees. Despite local politicians promising for flood protection after the flood, the city remained vulnerable to such flooding at least 20 years after the storm. The River Dodder, which also overflowed, nearly exceeded the reservoir dam in Bohernabreena in South Dublin
South Dublin
South Dublin is a county in Ireland. It is one of three smaller counties into which County Dublin was divided in 1994. The county seat is Tallaght, the largest suburb of Dublin and the biggest urban centre in the county. Other important centres of population are Lucan and Clondalkin...

. Additional spillway
Spillway
A spillway is a structure used to provide the controlled release of flows from a dam or levee into a downstream area, typically being the river that was dammed. In the UK they may be known as overflow channels. Spillways release floods so that the water does not overtop and damage or even destroy...

s were later added in the event of another similar flood. In the Wicklow Mountains
Wicklow Mountains
The Wicklow Mountains form the largest continuous upland area in Ireland. They occupy the whole centre of County Wicklow and stretch outside its borders into Counties Carlow, Wexford and Dublin. Where the mountains extend into County Dublin, they are known locally as the Dublin Mountains...

, the rainfall resulted in significant runoff
Surface runoff
Surface runoff is the water flow that occurs when soil is infiltrated to full capacity and excess water from rain, meltwater, or other sources flows over the land. This is a major component of the water cycle. Runoff that occurs on surfaces before reaching a channel is also called a nonpoint source...

, which caused erosion along the Cloghoge River. The passage of the storm left heavy crop damage, part of a larger period of poor agriculture in the country. Throughout the country, the storm caused at least five deaths, four of which were drownings in flooded rivers; the fifth death was caused by a heart attack while being evacuated from flooding. Two months after the storm struck, the government of Ireland allocated IR£
Irish pound
The Irish pound was the currency of Ireland until 2002. Its ISO 4217 code was IEP, and the usual notation was the prefix £...

6,449,000 (1986 IEP
Irish pound
The Irish pound was the currency of Ireland until 2002. Its ISO 4217 code was IEP, and the usual notation was the prefix £...

, $8,650,000 1986 USD) to repair roads and bridges damaged by the weather system.

The storm also affected the United Kingdom as it moved across the southern portion of the country. In Wales
Wales
Wales is a country that is part of the United Kingdom and the island of Great Britain, bordered by England to its east and the Atlantic Ocean and Irish Sea to its west. It has a population of three million, and a total area of 20,779 km²...

, Charley produced record-breaking daily rainfall, which surpassed 4 inches (100 mm) in Dyfed
Dyfed
Dyfed is a preserved county of Wales. It was created on 1 April 1974 under the terms of the Local Government Act 1972, and covered approximately the same geographic extent as the ancient Principality of Deheubarth, although excluding the Gower Peninsula and the area west of the River Tawe...

. Some locations received hundred year rainfall
Return period
A return period also known as a recurrence interval is an estimate of the interval of time between events like an earthquake, flood or river discharge flow of a certain intensity or size. It is a statistical measurement denoting the average recurrence interval over an extended period of time, and...

. The storm struck the area during the Summer Bank holiday
Bank Holiday
A bank holiday is a public holiday in the United Kingdom or a colloquialism for public holiday in Ireland. There is no automatic right to time off on these days, although the majority of the population is granted time off work or extra pay for working on these days, depending on their contract...

, creating unfavorable conditions for driving and resulting in several accidents. Heavy rainfall flooded rivers, which swept away several people. This prompted officials to deploy boats and helicopters to assist in rescues, although at least three deaths were reported due to drowning in the rivers. Severe flooding was reported in Cumbria
Cumbria
Cumbria , is a non-metropolitan county in North West England. The county and Cumbria County Council, its local authority, came into existence in 1974 after the passage of the Local Government Act 1972. Cumbria's largest settlement and county town is Carlisle. It consists of six districts, and in...

 and Gloucestershire
Gloucestershire
Gloucestershire is a county in South West England. The county comprises part of the Cotswold Hills, part of the flat fertile valley of the River Severn, and the entire Forest of Dean....

. The storm also left roads blocked by fallen trees and power lines. In Whitland
Whitland
Whitland is a small town in Carmarthenshire, south-west Wales, lying on the River Tâf. Whitland is home to the elusive "Whitland Trout" noted for its eggs and oily scales.- History :...

, Wales, local soldiers assisted rescuing people, and later contributed to the cleanup of the town. Throughout the country, five people were missing after the storm, all of whom are presumed to have drowned; an additional death was confirmed in Newry
Newry
Newry is a city in Northern Ireland. The River Clanrye, which runs through the city, formed the historic border between County Armagh and County Down. It is from Belfast and from Dublin. Newry had a population of 27,433 at the 2001 Census, while Newry and Mourne Council Area had a population...

, Northern Ireland
Northern Ireland
Northern Ireland is one of the four countries of the United Kingdom. Situated in the north-east of the island of Ireland, it shares a border with the Republic of Ireland to the south and west...

.

See also

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