Categorized | News, Weather

Flash flood watch for the Big Island, winter weather advisory for summits issued

Hawaii County Civil Defense release:

This is a weather update for Sunday morning, December 19.

The National Weather Service has issued a flash flood watch for Hawai’i Island effective today through this evening

A flash flood watch means that conditions may develop that may lead to flash flooding.

Due to the flash flood watch the following are issued:

Residents in flood prone areas as asked to be on the lookout for flood conditions.

Motorists should drive carefully and be on the alert for ponding and debris on the roadways. Be aware that road closures can occur without warning.

Again, the National Weather Service has issued a flash flood watch for Hawai’i Island effective today, Sunday, December 19 through this evening

Have a safe day.

This is your Hawai’i County Civil Defense.

Audio version of message

URGENT – WINTER WEATHER MESSAGE…UPDATED
NATIONAL WEATHER SERVICE HONOLULU HI
814 AM HST SUN DEC 19 2010

…WINTER WEATHER LIKELY OVER THE BIG ISLAND SUMMITS BEGINNING TONIGHT…

.A DEEP LAYER OF MOISTURE MOVING UP FROM THE SOUTHWEST WILL SPREAD OVER THE BIG ISLAND…COVERING THE SUMMITS TONIGHT THROUGH MONDAY NIGHT.

BIG ISLAND SUMMITS-
INCLUDING…MAUNA LOA AND MAUNA KEA ABOVE 8000 FEET
814 AM HST SUN DEC 19 2010

…WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 6 AM HST TUESDAY…

THE NATIONAL WEATHER SERVICE IN HONOLULU HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW ACCUMULATION…WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO 6 AM HST TUESDAY.

A DEEP LAYER OF MOISTURE MOVING ACROSS THE BIG ISLAND COMBINED WITH SUBFREEZING TEMPERATURES WILL RESULT IN MODERATE SNOWFALL ACROSS THE BIG ISLAND SUMMITS. EXPECT SNOW ACCUMULATIONS NEAR 5 INCHES OVER A 24 HOUR PERIOD TONIGHT AND MONDAY AT THE SUMMITS WITH LIGHT AMOUNTS MONDAY NIGHT. SNOW LEVELS ARE EXPECTED TO BE 11500 TO 12000 FEET IN ELEVATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW…SLEET…OR FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES…AND USE CAUTION WHILE DRIVING.

For current weather information and links to live webcams on the Big Island see the Hawaii 24/7 Weather Page
NWS Satellite Image Loop
Issued: Dec 19, 2010 2:00 pm HST

SPECIAL TROPICAL WEATHER OUTLOOK
For the central north Pacific, between 140°W and 180.

1. A gale low located just west of the international dateline about 630 miles south southwest of Midway atoll and 1480 miles west of Honolulu, which is moving toward the south at less than 10 mph, continues to exhibit tropical characteristics as it moves over warmer waters. Well-organized thunderstorms persist around the center, which has become cloud-covered over the past few hours. Forecast models indicate this system will turn back toward the southeast or east today, which will likely bring it back into the Central Pacific Hurricane Center area of responsibility later today or tonight. There is a high chance, 90 percent, of this system being a tropical cyclone as it crosses back into the central north Pacific basin during the next 48 hours. For additional information on this gale low, see the high seas forecast issued for the north Pacific ocean by the National Weather Service forecast office in Honolulu, Hawaii under AWIPS header HSFNP, or WMO header FZPN40 PHFO.

Elsewhere, no tropical cyclones are expected through Tuesday afternoon.

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