Heavy Rains and Catastrophic Flooding Possible in Hawaii

A kona low will continue to bring heavy rain to Hawaii bringing flooding and flash flooding, landslides, road closures, and low visibility with high rainfall rates expected. Lake effect snow is expected downwind from the Great Lakes. Blizzard conditions are expected in the southeast Alaska.
Read More...

Last Update: 330 AM HST Tue Dec 7 2021

View Nearby Observations

For More Weather Information:

Honolulu, HI Local Forecast Office

13NM ESE Waimanalo Beach HI

Marine Zone Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY WEDNESDAY

Synopsis: PHZ100-080230- 330 AM HST Tue Dec 7 2021 .Synopsis for Hawaiian coastal waters... A near stationary kona low located far northwest of Kauai is producing convergence bands of heavy showers, along with isolated thunderstorms, and strong gusty winds over the majority of the central local Hawaiian waters. These bands will gradually move into the west waters today and Wednesday. High pressure building northeast of the area will reinstate moderate to fresh trade winds from Wednesday through the rest of the week. $$

Today
North winds 20 to 25 knots backing west in the afternoon. Wind waves 9 feet. Mixed swell north 5 feet and south 3 to 4 feet. Heavy showers likely and isolated thunderstorms. Some thunderstorms may produce gusty winds.
Tonight
East winds 20 knots. Wind waves 10 feet. Mixed swell north 4 feet and south 3 feet. Scattered showers.
Wednesday
East winds to 25 knots. Wind waves 8 feet. North swell 3 feet. Scattered showers in the morning, then isolated showers in the afternoon.
Wednesday Night
East winds to 25 knots. Wind waves 9 feet. Scattered showers in the evening, then isolated showers after midnight.
Thursday
East winds to 25 knots. Wind waves 9 feet. Isolated showers in the morning.
Thursday Night
East winds 20 knots. Wind waves 8 feet. North swell 3 feet after midnight. Isolated showers.
Friday
East winds 20 knots. Wind waves 7 feet. North swell 3 feet. Isolated showers.
Saturday
East winds 20 knots. Wind waves 7 to 8 feet. North swell 3 feet. Isolated showers.
  Click Map For Detailed Forecast

ABOUT THIS FORECAST

Last Update: 330 AM HST Tue Dec 7 2021
  Forecast Discussion
   

RADAR & SATELLITE IMAGES

Link to Local Radar Data Link to Satellite Data