Alert archive / Hawaii / Flash Flood Warnings in 2003

Flash Flood Warning 3, NWS Honolulu, HI

June 7, 2003

NWS Honolulu, HI issued this flash flood warning at Jun 7, 2003, 2:52 PM HST. It was in force for 3 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: Jun 7, 2003, 2:52 PM HST (00:52 UTC)
Expired: Jun 7, 2003, 5:45 PM HST
In force: 3 hr
Issued by: NWS Honolulu, HI
Area: Whole counties

The text

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

000 
WGHW50 PHFO 080055
FFWHI 
HIZ002-080345-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HONOLULU HI
252 PM HST SAT JUN 7 2003

THE NATIONAL WEATHER SERVICE IN HONOLULU HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  OAHU

* UNTIL 545 PM HST

* AT 243 PM HST...RADAR INDICATED VERY HEAVY RAIN OVER WAHIAWA...OR
  ABOUT 8 MILES NORTH OF WAIPAHU. THE AREA WAS NEARLY STATIONARY.

* LOCATIONS IN THE WARNING INCLUDE WAIALUA...WHEELER AFB... 
  WAHIAWA...SCHOFIELD BARRACKS AND MILILANI TOWN

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF STREAMS
AND COULD ALSO TRIGGER ROCK AND MUDSLIDES IN STEEP TERRAIN.

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.

$$
LAT...LON 2153 15811 2140 15797 2224 15686 2256 15721

FARRELL

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 Jun 7, 10:00 AM HST, 4 hours 52 minutes earlier.

Area forecast discussion, Jun 7, 10:00 AM HST, 4 hours 52 minutes before

HAWAIIAN ISLANDS SYNOPTIC DISCUSSION AND GUIDANCE
NATIONAL WEATHER SERVICE HONOLULU HI
10 AM HST SAT JUN 7 2003

SUMMARY...A TROUGH PASSING THROUGH THE STATE FROM THE NORTHWEST WILL
SET OFF SOME CONVECTIVE SHOWERS MAINLY ON KAUAI...MAUI AND THE BIG
ISLAND TODAY. SOME LOCALLY HEAVY SHOWERS ARE ALSO POSSIBLE ON THE
OTHER ISLANDS. A RETURN OF TRADE WINDS IS EXPECTED BY MONDAY...WITH
MOST SHOWERS THEN CONFINED TO WINDWARD AND MAUKA SECTIONS. HIGH
PRESSURE BUILDING NORTH OF THE ISLANDS SHOULD STRENGTHEN THOSE TRADE
WINDS THROUGH THE COMING WEEK.

SATELLITE...AN UPPER LEVEL TROUGH WAS EVIDENT IN WATER VAPOR IMAGERY
NORTH AND NORTHWST OF THE HAWAIIAN ISLANDS THIS MORNING. AN
ASSOCIATED LOW-LEVEL CONVERGENCE BAND CONTAINED TOWERING CUMULUS
WITH TOPS TO 19 THOUSAND FEET...WITH A 200 MILE WIDE BAND OF BROKEN
TO OVERCAST MULTI-LAYERED CLOUDS CONTAINING EMBEDDED THUNDERSTORMS
IN THIS BAND FARTHER NORTH OF THE ISLANDS. THIS BAND OF CLOUDS
INCREASED IN COVERAGE AND PROPAGATED SOUTHEASTWARD AT ALMOST 25 MPH
DURING THE PAST 6 HOURS. THE TOPS OF THE EMBEDDED THUNDERSTORMS...
WHICH WERE MORE THAN 170 MILES NORTHEAST OF LIHUE...WERE UP TO NEAR
39 THOUSAND FEET.

DISCUSSION...HIGH PRESSURE OFF THE WEST COAST OF NORTH AMERICA WILL
GRADUALLY BUILD BACK SOUTHWESTWARD TO BRING A RETURN OF THE TRADES
THIS WEEK. RESIDUAL INSTABILITY MAY STILL SPAWN A FEW HEAVY
SHOWERS...EVEN A THUNDERSTORM OVER KAUAI...MAUI AND THE BIG ISLAND
TODAY...WITH A CHANCE FOR LOCALLY HEAVY SHOWERS ON THE OTHER
ISLANDS. RAINFALL AMOUNTS WILL BE DECREASING ON SUNDAY HOWEVER.
MODELS FORECAST THE BUILDING OF A 1030 MB HIGH NORTH OF THE STATE BY
WEDNESDAY...SO EXPECT TRADES TO REACH MODERATE TO OCCASIONALLY FRESH
SPEEDS BY MIDWEEK...AND REMAIN MODERATE THROUGH NEXT WEEKEND. OTHER
THAN THE LOCALLY HEAVY CONVECTIVE SHOWERS THIS AFTERNOON...THE STATE
WILL SEE A RETURN OF TRADE SHOWERS...MAINLY WINDWARD AND MAUKA...
BEGINNING MONDAY...BUT LIKELY BECOMING MORE PREDOMINANT MIDWEEK.

SOUTH SWELL EXPECTED TO CONTINUE THE HIGH SURF ALONG SOUTH SHORES
STATEWIDE THROUGH THE WEEKEND. SURF WILL DECREASE THROUGH THE COMING
WEEK.

FARRELL

.HFO...HIGH SURF ADVISORY FOR SOUTH SHORES.

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.