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Hurricane Nolo

From Wikipedia, the free encyclopedia

Hurricane Nolo
Nolo at peak intensity southwest of Hawaii on September 28
Meteorological history
FormedSeptember 13, 2026
Category 4 major hurricane
1-minute sustained (SSHWS/NWS)
Highest winds155 mph (250 km/h)
Lowest pressure929 mbar (hPa); 27.43 inHg
Overall effects
FatalitiesNone
DamageMinimal
Areas affectedHawaiian Islands
Part of the 2026 Pacific hurricane season

Hurricane Nolo is an active tropical cyclone currently impacting the Northwestern Hawaiian Islands. The nineteenth named storm and ninth hurricane of the 2026 Pacific hurricane season, Nolo first formed as a tropical depression on September 13. Initially designated as Fifteen-E, it soon degenerated to a remnant low due to wind shear.

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 8, the NHC began monitoring an area of interest well south of the Baja California peninsula. Two days later, a broad low pressure area developed, and the system began to become better organized despite moderate wind shear. On September 13 at 21:00 UTC, the consolidating low formed into Tropical Depression Fifteen-E.[1] Unfavorable wind shear eventually overtook the tropical depression, causing it to open up into a trough early on September 16.[2] However, the NHC continued to monitor the system for potential regeneration.[3] Early on September 23, the remains of the system regenerated into a tropical depression in the central Pacific.[4] Late that day, it became a tropical storm and was assigned the name Nolo.[5] At 3:00 UTC on September 25, Nolo strengthened into a Category 1 hurricane as it moved north-northwestward.[6] It continued steadily strengthening, becoming a Category 2 hurricane late that day.[7] Dry air intrusions caused Nolo to weaken back into a Category 1 hurricane on September 26 as it passed south of Hawaii's Big Island, moving westward.[8] It restrengthened into a high-end Category 2 hurricane on September 27, continuing its westward movement.[9] By 09:00 UTC on September 28, Nolo had become an annular hurricane, rapidly intensifying to Category 4 strength as a ridge began steering it west-northwestward.[10]

Preparations

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A hurricane watch was issued late on September 23 for Hawaiʻi County in anticipation of Nolo's impacts.[11] This was followed by a tropical storm warning the next day.[12] Governor Josh Green declared a state of emergency for the state.[13] United States President Donald Trump approved a federal disaster declaration for Hawaii as a result of Nolo and several other hurricane impacts on the state.[14] The state also provided hotel rooms for some in affected areas to evacuate to.[15] Hawaiʻi County schools and offices closed.[15] Both Haleakalā National Park and Hawaiʻi Volcanoes National Park closed in advance of the hurricane.[16][17]

Impact and aftermath

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Flooding from Nolo's heavy rains forced the closure of the Kohala Mountain Road. Spencer Beach Park recorded 17.25 in (438 mm) of rain.[18] Over 16,000 people lost power in Hawaii as Nolo approached.[19] Roads in North Kohala and ʻŌʻōkala were closed due to flooding and landslides. Gulches created by flooding from Hurricane Lala were filled by rainfall from Nolo, flooding Hawaiian Highway 11 and several other roads in Kaʻū.[20] The Hōlei Sea Arch at Hawaiʻi Volcanoes National Park collapsed during the passage of Nolo following weathering from previous storms and volcanic eruptions.[21]

Several towns on the Big Island were put under water restrictions after the hurricane passed.[22]

See also

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References

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  1. ↑ Brown, Daniel. "Tropical Depression Fifteen-E Discussion Number 1". National Hurricane Center. Miami, Florida. Archived from the original on September 14, 2026. Retrieved September 13, 2026.
  2. ↑ Blake, Eric; Jackson, Bryan. "Tropical Depression Fifteen-E Discussion Number 9". National Hurricane Center. Miami, Florida. Archived from the original on September 17, 2026. Retrieved September 17, 2026.
  3. ↑ Berg, Robbie. "Graphical Tropical Weather Outlook". National Hurricane Center. Miami, Florida. Retrieved September 18, 2026.
  4. ↑ Kelly, Larry; Cangialosi, John (September 22, 2026). "Tropical Depression Fifteen-E Discussion Number 11". National Hurricane Center. Honolulu, Hawaii: National Weather Service Central Pacific Hurricane Center. Retrieved September 23, 2026.
  5. ↑ Blake, Eric (September 23, 2026). "Tropical Storm Nolo Discussion Number 13". National Hurricane Center. Retrieved September 23, 2026.
  6. ↑ Papin, Philippe (September 25, 2026). "Hurricane Nolo Discussion Number 18". National Hurricane Center. Honolulu, Hawaii: National Weather Service Central Pacific Hurricane Center. Retrieved September 28, 2026.
  7. ↑ Blake, Eric (September 25, 2026). "Hurricane Nolo Discussion Number 21". National Hurricane Center. Honolulu, Hawaii: National Weather Service Central Pacific Hurricane Center. Retrieved September 28, 2026.
  8. ↑ Reinhart, Brad (September 26, 2026). "Hurricane Nolo Discussion Number 25". National Hurricane Center. Honolulu, Hawaii: National Weather Service Central Pacific Hurricane Center. Retrieved September 28, 2026.
  9. ↑ Katz, Jeremy; Kelly, Larry (September 27, 2026). "Hurricane Nolo Discussion Number 29". National Hurricane Center. Honolulu, Hawaii: National Weather Service Central Pacific Hurricane Center. Retrieved September 28, 2026.
  10. ↑ Pasch, Richard (September 27, 2026). "Hurricane Nolo Discussion Number 31". National Hurricane Center. Honolulu, Hawaii: National Weather Service Central Pacific Hurricane Center. Retrieved September 28, 2026.
  11. ↑ Blake, Eric (September 23, 2026). "Tropical Storm Nolo Advisory Number 13". National Hurricane Center. Honolulu, Hawaii: National Weather Service Central Pacific Hurricane Center. Retrieved September 23, 2026.
  12. ↑ Blake, Eric (September 24, 2026). "Tropical Storm Nolo Advisory Number 17". National Hurricane Center. Retrieved September 24, 2026.
  13. ↑ Gilbert, Mary; Dolce, Chris; Smith, Dakota; Peterson, Kate S. (September 25, 2026). "Hurricane Nolo rapidly intensifies as it approaches Hawaii". CNN. Retrieved September 25, 2026.
  14. ↑ Ryan Chandler; Shanshan Dong; Dennis Romero (September 27, 2026). "'Storm fatigue': Hawaiians reeling from back-to-back hurricanes as Nolo's threats diminish". NBC News. Retrieved October 2, 2026.
  15. 1 2 Graff, Amy; Jones, Judson (September 25, 2026). "Hurricane Nolo Takes Aim at Hawaii". The New York Times. ISSN 0362-4331. Retrieved September 26, 2026.
  16. ↑ "Hawaiʻi Volcanoes National Park to Close Ahead of Tropical Storm Nolo". National Park Service. September 24, 2026. Retrieved October 1, 2026.
  17. ↑ "Haleakalā National Park Closes Due to Approaching Tropical Storm Nolo". Maui Now. September 24, 2026. Retrieved October 1, 2026.
  18. ↑ "Nolo's close pass closes Big Island highway, whips up big surf as federal emergency declared". AccuWeather. September 27, 2026. Retrieved September 28, 2026.
  19. ↑ "3 days of weather chaos: Nor'easter, hurricanes and a 'zombie storm'". AccuWeather. September 28, 2026. Retrieved September 29, 2026.
  20. ↑ Kevin Fujii; Taylor Cozloff (September 28, 2026). "Photo Essay: Hurricane Nolo Spares Hawaiʻi The Worst Of Its Wrath". Honolulu Civil Beat. Retrieved October 2, 2026.
  21. ↑ Hayley Vawter (October 2, 2026). "Centuries-old lava rock arch in Hawai'i Volcanoes National Park collapses into ocean following Hurricane Nolo". FOX Weather. Retrieved October 2, 2026.
  22. ↑ "What Big Island residents need to know Wednesday about Hurricane Nolo". Big Island Now. September 30, 2026. Retrieved October 1, 2026.
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