Flash Flood Warning 12, NWS Honolulu, HI

Issued

Dec 7, 2003, 6:30 PM HST (04:30 UTC)

Expired

Dec 7, 2003, 8:30 PM HST

In force

2 hr

Issued by

NWS Honolulu, HI

Area

Whole counties

000 
WGHW50 PHFO 080442
FFWHI 
HIZ002-080630-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HONOLULU HI
630 PM HST SUN DEC 7 2003

THE NATIONAL WEATHER SERVICE IN HONOLULU HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  OAHU

* UNTIL 830 PM HST

* AT 624 PM HST...AUTOMATED RAIN GAUGES INDICATED VERY HEAVY RAIN
  OVER WAIAWA AND WAIAHA IN CENTRAL OAHU AND MOANALUA IN SOUTH 
  CENTRAL OAHU.  THE AREA OF HEAVY RAIN WAS NEARLY STATIONARY.

* LOCATIONS IN THE WARNING INCLUDE WAIMALU...HALAWA...AIEA...
  ALIAMANU...FORT SHAFTER...HALEIWA...HAUULA...KAAAWA...KAHALUU AND
  KAHUKU

WEATHER RADAR INDICATES HEAVY SHOWERS AND THUNDERSTORMS CONTINUING 
OVER THE KOOLAU MOUNTAINS. SOME OF THESE HEAVY SHOWERS HAVE HOWEVER 
MOVED OFF THE CENTRAL KOOLAU MOUNTAINS INTO CENTRAL OAHU...BUT ALSO 
ARE AFFECTING THE CENTRAL NORTH SHORE. ECHOS SHOW ONLY A SLOW 
WESTWARD MOVEMENT 

ALSO HEAVY SHOWERS ARE CONTINUING OVER THE SOUTHERN KOOLAUS WHICH 
WILL AFFECT SOME DRAINAGES IN WEST HONOLULU.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF
STREAMS...HIGHWAYS...UNDERPASSES AND LOW LYING AREAS.

MOTORISTS SHOULD BE ALERT FOR FLOODING AND SHOULD NOT ATTEMPT TO
CROSS FAST FLOWING OR RISING WATER. MANY FLASH FLOOD DEATHS OCCUR
WHEN MOTORISTS TRY CROSSING FLOODED ROADWAYS.

ESCAPE RISING WATER BY CLIMBING DIRECTLY TO HIGHER GROUND. NEVER TRY
TO OUTRACE A FLOOD...EITHER ON FOOT OR IN YOUR VEHICLE. DO NOT CAMP
NEAR STREAMS OR OTHER AREAS SUBJECT TO FLOODING.

STAY TUNED TO NOAA WEATHER RADIO OR OTHER LOCAL MEDIA SOURCES FOR THE
LATEST SEVERE WEATHER INFORMATION. REPORT SEVERE WEATHER TO THE
POLICE FOR IMMEDIATE RELAY TO THE NATIONAL WEATHER SERVICE.

$$
LAT...LON 2160 15816 2130 15800 2131 15772 2178 15795

NWS Honolulu, HI wrote its last area forecast discussion before this flash flood warning went out at Dec 7, 4:00 PM HST, 2 hours 30 minutes earlier.

HAWAIIAN ISLANDS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HONOLULU HI
4 PM HST SUN DEC 7 2003

.SYNOPSIS...THE ATMOSPHERE REMAINS UNSTABLE...WHICH MEANS THERE IS
THE POSSIBILITY OF HEAVY SHOWERS AND EVEN A THUNDERSTORM OR TWO
TODAY. THE TRADE WINDS WILL STRENGTHEN MONDAY WHEN HIGH PRESSURE
MOVES NORTH OF THE STATE.

&&

.DISCUSSION...
AN UPPER LEVEL LOW WEST OF KAUAI IS STILL CAUSING THE AIRMASS OVER
THE ISLANDS TO BE UNSTABLE. THE RESULT BEING HEAVY SHOWERS AND
THUNDERSTORMS OVER KAUAI AND OAHU...AND ADJACENT COASTAL WATERS
THIS AFTERNOON. COOLER TEMPERATURES OVER LAND SHOULD RESULT IN A
GRADUAL DECREASE IN THE RAIN TONIGHT...WITH THE EXCEPTION OF KAUAI
AND OVER THE OCEAN WHERE THE HEAVY STUFF WILL CONTINUE. THE LOW IS
FORECAST TO LIFT OUT TO THE NORTHEAST...LEAVING BEHIND WARMER
TEMPERATURES ALOFT AND A MORE STABLE ATMOSPHERE TOMORROW. AT THE
SURFACE...A HIGH CROSSING THE DATELINE NEAR 35N WILL MOVE NORTH THEN
NORTHEAST OF THE STATE OVER THE NEXT COUPLE OF DAYS. THE TRADES WILL
PICK UP IN THE TIGHTER PRESSURE GRADIENT SOUTH OF THE HIGH.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
FLASH FLOOD WARNING FOR WINDWARD OAHU UNTIL 7 PM

&&

CRAIG

Flash Flood Warnings in Hawaii, 2003Every flash flood warning in 2003

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.