Alert archive / Hawaii / Flash Flood Warnings in 2003

Flash Flood Warning 11, NWS Honolulu, HI

December 7, 2003

NWS Honolulu, HI issued this flash flood warning at Dec 7, 2003, 3:30 PM HST. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Dec 7, 2003, 3:30 PM HST (01:30 UTC)
Expired: Dec 7, 2003, 7:00 PM HST
In force: 4 hr
Issued by: NWS Honolulu, HI
Area: Whole counties

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGHW50 PHFO 080132
FFWHI 
HIZ002-080500-

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

THE NATIONAL WEATHER SERVICE IN HONOLULU HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  WINDWARD OAHU

* UNTIL 7 PM HST

* AT 330 PM HST...RADAR INDICATED THAT THE RAIN OVER THE KOOLAU 
  MOUNTAINS AND WINDWARD OAHU HAS REINTENSIFIED. THE AREA OF HEAVY 
  RAIN WAS NEARLY STATIONARY.

* LOCATIONS IN THE WARNING INCLUDE HAUULA...KAAAWA...KAHALUU...
  PUNALUU AND KANEOHE

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF
STREAMS...HIGHWAYS...UNDERPASSES AND LOW LYING AREAS. KAMEHAMEHA 
HIGHWAY IS CLOSED TO ALL TRAFFIC AT THE WAIKANE STREAM.

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.

$$
LAT...LON 2157 15798 2137 15784 2141 15777 2162 15791

CRAIG

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Honolulu, HI wrote its last area forecast discussion before this flash flood warning went out at Dec 7, 10:40 AM HST, 4 hours 50 minutes earlier.

Area forecast discussion, Dec 7, 10:40 AM HST, 4 hours 50 minutes before

HAWAIIAN ISLANDS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HONOLULU HI
1040 AM 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...
NO CHANGE FROM PREVIOUS THINKING. AN UPPER LEVEL LOW WEST OF KAUAI
IS STILL CAUSING THE AIRMASS OVER THE ISLANDS TO BE UNSTABLE. THE
RESULT BEING ISOLATED THUNDERSTORMS OVER WATER THIS MORNING. HEAVY
SHOWERS AND PERHAPS A THUNDERSTORM OR TWO IS EXPECTED WITH THIS
AFTERNOONS WARM TEMPERATURES. COOLER TEMPERATURES OVER LAND WILL
RESULT IN THE DEMISE OF THE CONVECTION TONIGHT...BUT THE HEAVY STUFF
SHOULD CONTINUE OVER THE WARM OCEAN WATERS. 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...
NONE

&&

CRAIG

The office that day

Everything else NWS Honolulu, HI issued on the same UTC day.

Issued	Product	Office	Lasted
Dec 7, 6:30 PM HST	Flash Flood Warning	HFO	2 hr
Dec 7, 8:55 PM HST	Flash Flood Warning	HFO	3 hr
Dec 7, 11:40 PM HST	Flash Flood Warning	HFO	3 hr

Nearby

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

Sources

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