Tropical Storm Alberto (2006)

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Hurricane Alberto
.
Tropical Storm Alberto
Tropical Storm Alberto at peak intensity on June 12
Meteorological history
FormedJune 10, 2006
ExtratropicalJune 14
DissipatedJune 19, 2006
Tropical storm
1-minute sustained (SSHWS/NWS)
Highest winds70 mph (110 km/h)
Lowest pressure995 mbar (hPa); 29.38 inHg
Overall effects
Fatalities3 indirect
Missing4
Damage$420,000 (2006 USD)
Areas affectedNorthwest Caribbean, Southeastern United States, Atlantic Canada
IBTrACSEdit this at Wikidata
Part of the 2006 Atlantic hurricane season

Tropical Storm Alberto was the first

extratropical
on June 14.

Across the Western Caribbean, the storm produced heavy rainfall, causing some minor damage. In Florida, a moderate

storm tide caused coastal damage and flooding, while Alberto's outer rainbands produced several tornadoes. The storm was indirectly responsible for two drownings off the coast of Tampa Bay. In North Carolina, heavy rainfall caused locally severe flooding, and one child drowned in a flooded storm drain near Raleigh. The remnants of Alberto produced strong winds and left four people missing in Atlantic Canada
. Overall, damage was minor along Alberto's path.

Meteorological history

Map plotting the storm's track and intensity, according to the Saffir–Simpson scale
Map key
Saffir–Simpson scale
  Tropical depression (≤38 mph, ≤62 km/h)
  Tropical storm (39–73 mph, 63–118 km/h)
  Category 1 (74–95 mph, 119–153 km/h)
  Category 2 (96–110 mph, 154–177 km/h)
  Category 3 (111–129 mph, 178–208 km/h)
  Category 4 (130–156 mph, 209–251 km/h)
  Category 5 (≥157 mph, ≥252 km/h)
  Unknown
Storm type
triangle Extratropical cyclone, remnant low, tropical disturbance, or monsoon depression

In early June 2006, an area of

low pressure.[1][2] Thunderstorms increased and became more concentrated on June 8 after a tropical wave moved into the western Caribbean,[1] and an upper-level low to its west increased outflow over the system.[3] The disturbance moved slowly north-northwestward, and development was initially inhibited by marginally favorable upper-level winds and land interaction.[4] The system gradually organized,[5] and by June 10 a circulation formed with sufficiently organized convection for the National Hurricane Center to classify it Tropical Depression One. At this point the storm was located about 140 miles (230 km) south of the western tip of Cuba.[1]

The depression tracked to the northwest through the

convective bands.[1] Upon becoming a tropical storm, the low-level circulation had become better defined, though forecasts predicted the wind shear would increase, preventing significant strengthening of the storm.[7] One forecaster at the National Hurricane Center remarked the system resembled a subtropical cyclone.[8] However, deep convection developed and built westward against the wind shear as the overall organization improved. At the same time Alberto turned northeastward under the influence of an approaching trough.[9] On June 12, the circulation abruptly reformed under the area of deepest convection, which coincided with the storm's passage over the loop current; consequentially, Alberto quickly strengthened to reach peak winds of 70 mph (110 km/h) about 220 miles (350 km) west-northwest of Tampa, Florida.[1]

Though it was projected to track over cooler waters and stay in an area of increased shear, forecasters at the National Hurricane Center predicted Alberto would attain hurricane status and make landfall at that intensity.

landfall at about 1630 UTC on June 13 with 45 mph (72 km/h) winds in Taylor County, Florida, about 50 miles (80 km) southeast of Tallahassee.[1]

Tropical Storm Alberto over South Carolina

The storm maintained a well-organized structure

mbar while a short distance south of Nova Scotia.[1] At this time, the low presented a well-defined comma structure.[18] After passing near Sable Island,[18] the remnants of Alberto crossed the Avalon Peninsula of Newfoundland on June 16.[19] The extratropical storm turned to the east-northeast and later to the east as it continued its rapid forward motion, and on June 19 the remnants of Alberto merged with an approaching cold front near the British Isles.[1]

Preparations

Radar image of Tropical Storm Alberto at landfall

By June 12, the Cuban government had evacuated over 25,000 people in the western portion of the country due to the threat of flooding.

Isle of Youth and the Pinar del Río Province early on June 10, but they were not issued by the Cuban government.[22]

In northwestern Florida, officials issued a mandatory evacuation order a day before the storm moved ashore for about 21,000 citizens in

Florida Panhandle about 43 hours prior to landfall. As Alberto was predicted to continue intensifying, the National Hurricane Center issued a hurricane warning from Longboat Key to the mouth of the Ochlockonee River approximately 25 hours before landfall. A tropical storm warning extended southward to Englewood and westward to Indian Pass. A tropical storm warning was also issued from Flagler Beach, Florida to the mouth of the Santee River in South Carolina.[1] As the storm moved inland, local National Weather Service offices issued flood watches for portions of North Carolina, Virginia, and the Delmarva Peninsula. Additionally, flood and flash flood warnings were issued for some portions of the country from South Carolina through Virginia.[16]

While Alberto was becoming extratropical over land, the Canadian Hurricane Centre issued gale warnings for offshore waters of Nova Scotia,[27] and later for Newfoundland. In addition, the Atlantic Storm Prediction Center issued inland wind warnings for coastal regions of Nova Scotia.[28] Due to the prediction for precipitation, the Atlantic Storm Prediction Center posted rainfall warnings for all Atlantic coastal regions of Nova Scotia.[29]

Impact

Storm Rainfall in the United States

Caribbean

In its early stages of development, the tropical depression which later became Alberto produced heavy rainfall across the western Caribbean. A station on

Havana Province rainfall totaled 8.46 inches (215 mm) at Playa Baracoa.[1] Much of the precipitation fell during a fairly short time, and was beneficial, as the area had been suffering from severe drought conditions.[30] In Pinar del Río province, the precipitation flooded 50 sq mi (130 km2) of crop land. The storm damaged about 50 houses across the country, about half of which in Havana.[20]

Alberto dropped light amounts of rainfall across Mexico, with a 24-hour total peaking at 4 inches (100 mm) in Peto, Yucatán. Light rain was also reported throughout Quintana Roo and in eastern Campeche.[31]

Florida

The large area of convection associated with Alberto dropped rainfall across Florida for several days. The statewide precipitation maximum reached 7.08 inches (180 mm) at a station 5 miles (8.0 km) east of

Florida Panhandle.[33] Six tornadoes were spawned in the state from the outer rainbands of Alberto, none of which caused serious damage.[25][34]

Storm surge flooding from Tropical Storm Alberto at Horseshoe Beach, Florida

Across coastal areas, the storm surge flooding caused minor damage to dozens of homes and closed several roads. Near

Egmont Key State Park, a woman fell off of a boat when a band of showers and surging currents made navigation difficult; her husband and a friend drowned after jumping in to save her without life jackets, though the woman returned safely to the boat.[25] The rainfall caused some temporary road flooding, though precipitation was mostly beneficial in alleviating drought conditions. Moderate wind gusts caused scattered power outages and downed some trees across the northeast portion of the state.[34] Overall, property damage in the state rose to about $390,000 (2006 USD) in total.[25][35]

Southeast United States

Flooding in North Carolina from Alberto

While the storm moved through the state of

beach erosion along the coastline.[37]

Alberto produced winds of tropical storm force along the

Fripp Island, leading to some beach erosion along portions of the coastline. While in the process of becoming extratropical, the rainbands of Alberto spawned seven confirmed tornadoes in the state, most of which rated F0;[1] a National Weather Service report indicated additional tornadoes may have occurred in the state. The tornadoes caused some minor damage, though overall damage in the state was minimal.[37]

The remnants of Alberto dropped heavy precipitation across

Crabtree Valley Mall. Major flooding was reported elsewhere throughout the region, which closed several roads and damaged some houses.[40] In Franklin County, an eight-year-old boy drowned after getting sucked into a flooded drainage system; the death is considered indirect because the boy was chasing a ball into the drainage system.[1] Near the coast, the storm produced several waterspouts, some of which moved ashore in Dare and Carteret counties. Isolated reports of 60 mph (97 km/h) wind gusts resulted in downed trees and minor damage.[41]

Rainfall from the storm extended into

Virginia Beach,[42] which caused flash flooding in the Hampton Roads area. The flooding closed several roads, though no major damage was reported.[43]

Canada

The extratropical remnant of Alberto produced strong winds across the

Canadian Maritimes, including gusts of 74 mph (119 km/h) in the Municipality of the District of Barrington of Nova Scotia.[18] Sustained winds reached 51 mph (82 km/h).[17] Rainfall from the storm was moderate, with some locations reporting 0.4 inches (10 mm) per hour;[44] totals exceeded 2 inches (51 mm) in numerous areas. Due to wet grounds, the winds knocked down some trees and several tree limbs, and also downed some power lines,[18] causing localized power outages.[17] Moderate winds and rainfall affected Newfoundland, as well.[19] According to a press report, the storm left four sailors missing about 230 miles (370 km) south of Nova Scotia.[1]

See also

References

  1. ^ a b c d e f g h i j k l m n o p q r s t u Lixion Avila & Daniel Brown (2006). "Tropical Storm Alberto Tropical Cyclone Report" (PDF). National Hurricane Center. Retrieved 2007-05-10.
  2. ^ Pasch (2006). "June 6 Tropical Weather Outlook". National Hurricane Center. Retrieved 2007-05-10.[permanent dead link]
  3. ^ a b c David Roth (2006). "Tropical Storm Alberto — June 2006". Hydrometeorological Prediction Center. Retrieved 2007-05-10.
  4. ^ Stewart (2006). "June 8 Tropical Weather Outlook". National Hurricane Center. Retrieved 2007-05-10.[permanent dead link]
  5. ^ Mainelli/Knabb (2006). "June 9 Tropical Weather Outlook". National Hurricane Center. Retrieved 2007-05-10.[permanent dead link]
  6. ^ Beven (2006). "Tropical Depression One Special Discussion One". National Hurricane Center. Retrieved 2007-05-10.
  7. ^ Pasch (2006). "Tropical Storm Alberto Discussion Six". National Hurricane Center. Retrieved 2007-05-10.
  8. ^ Pasch (2006). "Tropical Storm Alberto Discussion Seven". National Hurricane Center. Retrieved 2007-05-10.
  9. ^ Franklin (2006). "Tropical Storm Alberto Discussion Nine". National Hurricane Center. Retrieved 2007-05-10.
  10. ^ Pasch (2006). "Tropical Storm Alberto Discussion Ten". National Hurricane Center. Retrieved 2007-05-10.
  11. ^ Pasch (2006). "Tropical Storm Alberto Discussion Eleven". National Hurricane Center. Retrieved 2007-05-10.
  12. ^ Franklin (2006). "Tropical Storm Alberto Discussion Thirteen". National Hurricane Center. Retrieved 2007-05-10.
  13. ^ Pasch (2006). "Tropical Storm Alberto Discussion Fourteen". National Hurricane Center. Retrieved 2007-05-10.
  14. ^ Pasch (2006). "Tropical Storm Alberto Discussion Fifteen". National Hurricane Center. Retrieved 2007-05-10.
  15. ^ Stewart (2006). "Tropical Storm Alberto Discussion Sixteen". National Hurricane Center. Retrieved 2007-05-10.
  16. ^ a b c Fries & Petersen (2006). "Public Advisory 19 on Remnants of Alberto". Hydrometeorological Prediction Center. Retrieved 2007-05-10.
  17. ^ a b c Canadian Hurricane Center (2007). "2006 Tropical Cyclone Season Summary". Archived from the original on 2007-07-26. Retrieved 2007-05-10.
  18. ^ a b c d Bowyer & Roussel (2006). "Tropical Storm Alberto Information Statement for June 15, 2006 (2)". Canadian Hurricane Centre. Archived from the original on October 2, 2006. Retrieved 2007-05-10.
  19. ^ a b Roussel & Marshall (2006). "Tropical Storm Alberto Information Statement for June 16, 2006". Canadian Hurricane Centre. Archived from the original on June 11, 2011. Retrieved 2007-05-10.
  20. ^ a b c Dalia Acosta (2006-06-15). "Tempestade tropical Alberto causa estragos; Cuba: Os estragos causados por Alberto" (in Portuguese). Inter Press Service.
  21. ^ a b Agence France-Presse (2006-06-12). "25,000 Cubans move from 'life-threatening' storm Alberto". Archived from the original on 2007-08-02. Retrieved 2008-02-12.
  22. ^ a b Knabb (2006). "Tropical Depression One Public Advisory Two". National Hurricane Center. Retrieved 2007-05-10.
  23. ^ "20,000 ordered to leave Florida's Gulf Coast". Associated Press. June 12, 2006. Archived from the original on September 12, 2012. Retrieved June 13, 2006.
  24. ^ "Hernando County issues a recommended evacuation of Zone A/B". WTSP. June 12, 2006. Retrieved 2006-06-12.
  25. ^ a b c d National Climatic Data Center (2006). "Event Report for Florida (3)". Archived from the original on July 19, 2009. Retrieved 2007-05-21.
  26. ^ Bush, Jeb (2006). "Executive Order Number 06-130- Tropical Storm Alberto" (PDF). Retrieved 2006-06-12.
  27. ^ LaFortune (2006). "Tropical Storm Alberto Information Statement for June 14, 2006". Canadian Hurricane Centre. Archived from the original on October 2, 2006. Retrieved 2007-05-10.
  28. ^ LaFortune & Bowyer (2006). "Tropical Storm Alberto Information Statement for June 15, 2006". Canadian Hurricane Centre. Archived from the original on October 2, 2006. Retrieved 2007-05-10.
  29. ^ LaFortune & Bowyer (2006). "Tropical Storm Alberto Information Statement for June 14, 2006 (2)". Canadian Hurricane Centre. Archived from the original on October 2, 2006. Retrieved 2007-05-10.
  30. ^ Cuban delegates to the World Meteorological Organization (2007). "Reports of hurricanes, tropical storms, tropical disturbances and related flooding during 2006 in Cuba" (PDF). Archived from the original (PDF) on 2009-03-26. Retrieved 2007-05-10.
  31. ^ Alberto Hernández Unzón (2006). "Resumen de la Tormenta Tropical "Alberto" del Océano Atlántico" (PDF). Servicio Meteorológico Nacional. Archived from the original (PDF) on January 2, 2007. Retrieved 2007-05-11.
  32. ^ National Climatic Data Center (2006). "Event Report for Florida". Archived from the original on May 19, 2011. Retrieved 2007-05-21.
  33. ^ Tallahassee, Florida National Weather Service (2006). "Tropical Storm Alberto 2006". NOAA. Archived from the original on September 29, 2006. Retrieved 2007-05-21.
  34. ^ a b National Climatic Data Center (2006). "Event Report for Florida (2)". Archived from the original on May 20, 2011. Retrieved 2007-05-21.
  35. ^ National Climatic Data Center (2006). "Event Report for Florida (4)". Archived from the original on March 8, 2008. Retrieved 2007-05-21.
  36. ^ National Climatic Data Center (2006). "Event Report for Georgia". Archived from the original on May 19, 2011. Retrieved 2007-05-18.
  37. ^ a b Charleston, South Carolina National Weather Service (2006). "Tropical Storm Alberto Post Tropical Cyclone Report". NOAA. Retrieved 2007-05-18.
  38. ^ Blaes (2006). "Remnants of Alberto Produced Record Rainfall Amounts Across Central North Carolina". Raleigh, North Carolina National Weather Service. Retrieved 2007-05-20.
  39. ^ Raleigh, North Carolina National Weather Service (2006). "Tropical Storm Alberto Event Summary". Retrieved 2007-05-20.
  40. ^ ABC11TV (2006). "Alberto Brings Worst Flooding Since Fran". Archived from the original on 2011-05-21. Retrieved 2007-05-20.{{cite web}}: CS1 maint: numeric names: authors list (link)
  41. ^ National Climatic Data Center (2006). "Event Report for North Carolina". Archived from the original on May 20, 2011. Retrieved 2008-02-12.
  42. ^ Cullen (2006). "Tropical Storm Alberto Post-Storm Report". Wakefield, Virginia National Weather Service. Retrieved 2007-05-20.
  43. ^ National Climatic Data Center (2006). "Event Report for Virginia". Archived from the original on May 19, 2011. Retrieved 2007-05-20.
  44. ^ Bowyer (2006). "Tropical Storm Alberto Information Statement for June 14, 2006 (3)". Canadian Hurricane Centre. Archived from the original on 2007-05-10. Retrieved 2007-05-10.

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