ALERT….HEAVY RAIN AND FLASH FLOODING POSSIBLE FROM THIS WEEKEND THROUGH EARLY NEXT WEEK…

Effective: 04:31 HST on 12-02-2021
Expires: 18:15 HST on 12-02-2021
Event: Hydrologic Outlook
Alert:
…HEAVY RAIN AND FLASH FLOODING POSSIBLE FROM THIS WEEKEND THROUGH
EARLY NEXT WEEK…

A large low pressure system is forecast to develop late this week
over the central North Pacific with a strong potential to produce
very heavy rainfall across the main Hawaiian Islands. The rainfall
duration and intensity is likely to produce numerous flooding
impacts, possibly as early as Saturday, but more likely from Sunday
into early next week.
It is too soon to know exactly where the main rain bands will set
up, but the areas with the greatest current potential for flooding
include the Big Island and Maui County. Additional rain bands may
also develop and affect Oahu and Kauai County as the event
progresses into next week.
Keep up to date with the latest forecast information through the
Internet (weather.gov/hfo), local media, social media, or NOAA
Weather Radio broadcasts.
An updated outlook will be issued by 5 PM HST this afternoon, or
sooner if necessary.
Instructions:
Target Area:
Big Island East
Big Island Interior
Big Island North
Big Island South
Big Island Southeast
Big Island Summit
Central Oahu
East Honolulu
Ewa Plain
Haleakala Summit
Honolulu Metro
Kahoolawe
Kauai East
Kauai Mountains
Kauai North
Kauai South
Kauai Southwest
Kipahulu
Kohala
Kona
Koolau Leeward
Koolau Windward
Lanai Leeward
Lanai Mauka
Lanai South
Lanai Windward
Maui Central Valley North
Maui Central Valley South
Maui Leeward West
Maui Windward West
Molokai Leeward South
Molokai North
Molokai Southeast
Molokai West
Molokai Windward
Niihau
Oahu North Shore
Olomana
South Haleakala
South Maui, Upcountry
Waianae Coast
Waianae Mountains
Windward Haleakala