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Draft:Hurricane Isaac (2024)

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Hurricane Isaac
Hurricane Isaac at Peak intensity on September 28
Hurricane Isaac at peak intensity on September 28
Meteorological history
FormedSeptember 26
Post-tropicalSeptember 30
DissipatedSeptember 30
Category 2 hurricane
1-minute sustained (SSHWS/NWS)
Highest winds105 mph (170 km/h)
Lowest pressure968 mbar (hPa); 28.59 inHg
Overall effects
FatalitiesNone
DamageMinimal
Areas affectedThe Azores
Part of the 2024 Atlantic hurricane season

Hurricane Isaac was a short-lived hurricane in the open Atlantic. The ninth named storm and sixth hurricane of the 2024 Atlantic hurricane season, Isaac slowly developed from a non-tropical low over the Atlantic.[1] As showers and thunderstorms associated with the low consolidated,[2] the low detached from a frontal boundary a few hours later.[3]Despite having low chances for development originally, it quickly intensified into Tropical Storm Isaac early on September 26.[4] It intensified throughout the day and became a hurricane on September 27.[5] Soon after becoming a Category 1 hurricane, Isaac underwent an eyewall replacement cycle and intensified into a Category 2 hurricane later that same day. Early on September 28, Isaac would reach peak Intensity at 105 mph and a pressure of 968 millibars.[6] After undergoing rapid intensification to reach peak intensity, The intensification had leveled off.[6] On September 29, Isaac had began weakening and by late that day, had weakened back down to a Tropical Storm. The weakening was mainly due to increases in unfavorable sea surface temperatures, wind shear, and dry air.[7] On the morning of September 30, Isaac had transitioned into a post-tropical cyclone. In preparations for Isaac, the Portuguese Institute of Sea and Atmosphere (IPMA) put the Azores under a Yellow warning.[8]

Meteorological History

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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

On September 25, a non tropical disturbance was noted by the National Hurricane Center with low chances to form.[1] Throughout the day, the showers and thunderstorms associated with the low consolidated.[1] The area of low-pressure then detached from a frontal boundary a few hours later, and was designated Invest 99L.[3] The chances for development into a tropical cyclone went up, and early on September 26, Invest 99L was named Tropical Storm Isaac.[4] Throughout the day, Isaac Strengthened some more, and by noon that same day, it was forecast to be a minimal hurricane as a Category 1.[9] It continued to get stronger throughout the day, and early on September 27, it became a Category 1 hurricane.[5] Isaac would continue becoming stronger and more powerful, and became a high end Category 1 hurricane.[10] Overnight, it underwent an eyewall replacement cycle.[11] During and after this, Isaac rapidly intensified to reach peak intensity early the same day, with a peak of 105mph, and a pressure of 968 millibars.[12] After reaching Peak Intensity, Isaac's intensification leveled off.[6] Late on September 28, Isaac started to began weakening, and the eye started to fill back up with clouds.[13] Early overnight on September 29, Isaac had rapidly weakened back to a Category 1 hurricane.[14] By Mid - day on September 29, Isaac was a minimal hurricane with 75 mph winds.[15] By nighttime on September 29, Isaac had weakened to a tropical storm.[7] Isaac Continued weakening on September 30. Around mid - day on September 30, Isaac was a post-tropical cyclone.[16] By nightfall, Isaac had dissipated.[17]

Preparations and Impacts

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In Preparation for Hurricane Isaac, the Portuguese Institute of the Sea and Atmosphere declared a Yellow Warning for a Portuguese Island chain called The Azores. Impacts were minimal and there are no Confirmed deaths.[8]

See also

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References

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  1. ^ a b c "NHC Graphical Outlook Archive". www.nhc.noaa.gov. Retrieved 2024-10-05.
  2. ^ "NHC Graphical Outlook Archive". www.nhc.noaa.gov. Retrieved 2024-10-05.
  3. ^ a b "NHC Graphical Outlook Archive". www.nhc.noaa.gov. Retrieved 2024-10-05.
  4. ^ a b "Tropical Storm ISAAC". www.nhc.noaa.gov. Retrieved 2024-10-05.
  5. ^ a b "Hurricane ISAAC". www.nhc.noaa.gov. Retrieved 2024-10-05.
  6. ^ a b c "Hurricane ISAAC". www.nhc.noaa.gov. Retrieved 2024-10-05.
  7. ^ a b "Tropical Storm ISAAC". www.nhc.noaa.gov. Retrieved 2024-10-05.
  8. ^ a b "Hurricane Isaac Intensifies: Category 2 Approaching the Azores!". PortugalToday.news. 2024-09-28. Retrieved 2024-10-05.
  9. ^ "Tropical Storm ISAAC". www.nhc.noaa.gov. Retrieved 2024-10-05.
  10. ^ "Hurricane ISAAC". www.nhc.noaa.gov. Retrieved 2024-10-05.
  11. ^ "Hurricane ISAAC". www.nhc.noaa.gov. Retrieved 2024-10-05.
  12. ^ "Hurricane ISAAC". www.nhc.noaa.gov. Retrieved 2024-10-05.
  13. ^ "Hurricane ISAAC". www.nhc.noaa.gov. Retrieved 2024-10-05.
  14. ^ "Hurricane ISAAC". www.nhc.noaa.gov. Retrieved 2024-10-05.
  15. ^ "Hurricane ISAAC". www.nhc.noaa.gov. Retrieved 2024-10-05.
  16. ^ "Post-Tropical Cyclone ISAAC". www.nhc.noaa.gov. Retrieved 2024-10-05.
  17. ^ "Post-Tropical Cyclone ISAAC". www.nhc.noaa.gov. Retrieved 2024-10-05.
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