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User:Hurricane Noah/Hurricane Isaac (2018)

< User:Hurricane Noah
Hurricane Isaac
Category 1 hurricane (SSHWS/NWS)
Hurricane Isaac at peak intensity on September 10
FormedSeptember 7, 2018
DissipatedSeptember 15, 2018
Highest winds1-minute sustained: 75 mph (120 km/h)
Lowest pressure993 mbar (hPa); 29.32 inHg
FatalitiesNone
DamageNone
Areas affectedWest Africa, Lesser Antilles
Part of the 2018 Atlantic hurricane season

Hurricane Isaac was a tropical cyclone that impacted multiple islands in the Lesser Antilles as a tropical storm. The ninth named storm and fifth hurricane of the 2018 Atlantic hurricane season, Isaac formed from a tropical wave that emerged off the coast of West Africa on September 2. The disturbance was monitored for several days before a tropical depression formed on September 7. On September 8, the depression strengthened into a tropical storm and was given the name Isaac. On September 9, Isaac became a hurricane. On September 11, Isaac weakened back into a tropical storm due to increasing wind shear. Isaac's core passed in between Martinique and Dominica on September 13. Isaac was downgraded to a tropical depression on September 14 before regaining tropical storm status later in the day. Early on September 15, Isaac degenerated into an open trough.

Meteorological history edit

 
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
  Extratropical cyclone, remnant low, tropical disturbance, or monsoon depression

Hurricane Isaac originated from a tropical wave that emerged off the coast of West Africa on September 2.[1] The National Hurricane Center (NHC) monitored the disturbance for the next five days as it moved west to west-northwest across the Atlantic.[2] At 21:00 UTC on September 7, the NHC announced that Tropical Depression Nine had formed approximately 1,755 miles (2,820 km) east of the Windward Islands.[3] One day later, the depression strengthened into Tropical Storm Isaac.[4] At 03:00 UTC on September 10, Isaac strengthened into a hurricane.[5] At 03:00 UTC on September 11, Isaac weakened back into a tropical storm due to increasing wind shear.[6] Isaac's center passed between Dominica and Martinique around 13:00 UTC on September 13.[7]

Preparations and impact edit

At 15:00 UTC on September 11, in anticipation of Isaac's passage through the Lesser Antilles, the government of France issued a hurricane watch for Guadeloupe and Martinique. At the same time, the government of Barbados issued a hurricane watch for Dominica and the Meteorological Service of Antigua and Barbuda issued a tropical storm watch for Antigua and Montserrat.[8] At 18:00 UTC, the Meteorological Service of Antigua and Barbuda issued a tropical storm watch for St. Kitts and Nevis.[9] At 03:00 UTC on September 12, the hurricane watches for Dominica, Martinique, and Guadeloupe were changed to tropical storm warnings after Isaac weakened into a tropical storm. Additionally, the government of Netherlands issued a tropical storm watch for Saba and St. Eustatius.[10] At 18:00 UTC, the government of France issued a tropical storm watch for St. Martin and the government of Sint Maarten issued a tropical storm watch for St. Maarten.[11] At 09:00 UTC on September 13, the government of Antigua issued a tropical storm watch for Barbuda.[12]

See also edit

References edit

  1. ^ Stewart, Stacy. NHC Graphical Outlook Archive. National Hurricane Center (Report). National Oceanic and Atmospheric Administration. Retrieved 9 September 2018.
  2. ^ Cangialosi, John; Berg, Robbie. NHC Graphical Outlook Archive. National Hurricane Center (Report). National Oceanic and Atmospheric Administration. Retrieved 9 September 2018.
  3. ^ Cangialosi, John. Tropical Depression Nine Advisory Number 1. National Hurricane Center (Report). National Oceanic and Atmospheric Administration. Retrieved 10 September 2018.
  4. ^ Beven, Jack. Tropical Storm Isaac Advisory Number 5. National Hurricane Center (Report). National Oceanic and Atmospheric Administration. Retrieved 10 September 2018.
  5. ^ Zelinsky, David. Hurricane Isaac Advisory Number 10. National Hurricane Center (Report). National Oceanic and Atmospheric Administration. Retrieved 10 September 2018.
  6. ^ Zelinsky, David. Tropical Storm Isaac Advisory Number 14. National Hurricane Center (Report). National Oceanic and Atmospheric Administration. Retrieved 13 September 2018.
  7. ^ Blake, Eric. Tropical Storm Isaac Discussion Number 24. National Hurricane Center (Report). National Oceanic and Atmospheric Administration. Retrieved 14 September 2018.
  8. ^ Blake, Eric. Tropical Storm Isaac Advisory Number 16. National Hurricane Center (Report). National Oceanic and Atmospheric Administration. Retrieved 14 September 2018.
  9. ^ Blake, Eric. Tropical Storm Isaac Intermediate Advisory Number 16A. National Hurricane Center (Report). National Oceanic and Atmospheric Administration. Retrieved 14 September 2018.
  10. ^ Berg, Robbie. Tropical Storm Isaac Advisory Number 18. National Hurricane Center (Report). National Oceanic and Atmospheric Administration. Retrieved 14 September 2018.
  11. ^ Blake, Eric. Tropical Storm Isaac Intermediate Advisory Number 20A. National Hurricane Center (Report). National Oceanic and Atmospheric Administration. Retrieved 14 September 2018.
  12. ^ Zelinsky, David. Tropical Storm Isaac Advisory Number 23. National Hurricane Center (Report). National Oceanic and Atmospheric Administration. Retrieved 14 September 2018.

External links edit

 
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