Meteorological history | |
---|---|
Formed | August 5,1988 [1] |
Dissipated | August 8,1988 [1] |
Tropical storm | |
1-minute sustained (SSHWS/NWS) | |
Highest winds | 50 mph (80 km/h) |
Lowest pressure | 1002 mbar (hPa);29.59 inHg |
Overall effects | |
Fatalities | None |
Damage | None |
Areas affected | United States,Canada |
IBTrACS | |
Part of the 1988 Atlantic hurricane season |
Tropical Storm Alberto was a tropical system of the 1988 hurricane season in the North Atlantic Ocean,which became a tropical cyclone as it moved along the east coast of the United States. Alberto formed from a tropical wave that developed off the coast of South Carolina,USA,on August 5,1988, [1] [2] and gradually moved northeastward in the Atlantic Ocean,becoming a tropical cyclone on August 7 about 95 km east of Nantucket Island,Massachusetts. [2] Alberto continued its trajectory,heading towards Nova Scotia late on August 7. It became extratropical the following day,dissipating shortly after reaching Newfoundland,Canada. Varied amounts of rain and strong gusts of wind were reported during its passage,with no damage to people or property. [3]
On August 4,a tropical wave developed off the coast of South Carolina,USA. [4] Satellite imagery indicated the presence of a low-pressure system,which formed on August 5 into a tropical depression named Deux,located 210 km south-southwest of Cape Fear,North Carolina. Although classified as tropical at the time,it wasn't until August 6 that the system was officially reported as the second tropical depression. [4] [5]
Moving progressively northeastward,it gained tropical status twenty-four hours after its formation,while located 220 km east of the coast of Virginia Beach,Virginia. Under the influence of a weak frontal system from the Ohio Valley,the depression accelerated its trajectory to the northeast. [4] This frontal system improved the structure of the depression,which intensified to become Tropical Storm Alberto on August 7 at around 12:00 UTC,the first named cyclone of the season,located 95 km east of Nantucket,Massachusetts. [2] [6]
Shortly after the formation of the tropical cyclone,the National Hurricane Center,which assigned the name Alberto to the storm,issued a cyclone warning covering the coast from Bar Harbor to Eastport,Maine. Alberto moved rapidly to the northeast at an estimated speed of around 47 km/h. Late in the day on August 7,the cyclone hit the west coast of Nova Scotia,near St. Mary's Bay,with winds of 63 km/h. [7] It briefly touched the Bay of Fundy before crossing the Chignecto Isthmus and Prince Edward Island. Alberto rapidly lost convection as it moved through the cold waters of the Gulf of St. Lawrence,becoming an extratropical cyclone on August 8. [4] The cyclone dissipated shortly afterwards in the Atlantic Ocean north of Newfoundland, [1] [6] and was followed the same day by the formation of Tropical Storm Beryl southeast of Louisiana. [8]
During Tropical Storm Alberto,heavy rains and thunderstorms affected Maine,USA,but no damage was caused, [3] either to people or property. Approximately 8 mm of rain fell in Lewiston [9] and over 50.8 mm in Millinocket.
Wind gusts of 78 km/h were measured in Yarmouth,Nova Scotia,Canada. [1] [7] Alberto also brought light to moderate precipitation to Canada,particularly to Saint John,New Brunswick. Rainfall of 45.1 mm was measured there. [7] The rains caused some local flooding,forcing the closure of several roads for a short time. [10] Thunderstorm trails from the extratropical cyclone were also observed east of Newfoundland. [7]
The 1962 Atlantic hurricane season featured Hurricanes Daisy and Ella –two tropical cyclones that showed the latest dates for the fourth and fifth named storms on record since tropical cyclones were first named in the North Atlantic ocean,starting in 1950,when they both formed on September 29 and October 14. On the same hand,it was the least active since 1939,with only five named storms. Although the season officially began on June 15,the first named storm did not form until August 26,the third-latest date. Hurricane Alma brushed the Outer Banks before becoming extratropical southeast of New England,destroying hundreds of boats and producing beneficial rainfall. In late August,Tropical Storm Becky developed unusually far east in the Atlantic Ocean,becoming the easternmost storm on record to recurve to the northeast. Celia followed in the September,forming east of the Lesser Antilles and executing a loop near Bermuda before dissipating. Hurricane Daisy,the latest fourth named storm,was the costliest of the season,leaving about $1.1 million in damage in New England (1962 USD). The storm dropped the highest rainfall total on record in Maine,and its precipitation caused 22 traffic fatalities. The final hurricane –Ella –the latest fifth named storm –was also the strongest,remaining offshore of the eastern United States but causing two deaths.
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