Alert archive / Hawaii / Flash Flood Warnings in 2003

Flash Flood Warning 14, NWS Honolulu, HI

December 7, 2003

NWS Honolulu, HI issued this flash flood warning at Dec 7, 2003, 11:40 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: Dec 7, 2003, 11:40 PM HST (09:40 UTC)
Expired: Dec 8, 2003, 2:40 AM 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 080950
FFWHI 
HIZ002-081240-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HONOLULU HI
1140 PM HST SUN DEC 7 2003

THE NATIONAL WEATHER SERVICE IN HONOLULU HAS CONTINUED THE

* FLASH FLOOD WARNING FOR...
  OAHU

* UNTIL 240 AM HST

* AT 1130 PM HST...LAW ENFORCEMENT OFFICIALS REPORTED FLOODING STILL 
  IN PROGRESS.

* LOCATIONS IN THE WARNING INCLUDE... 
  HONOLULU...WAIMALU...HALAWA...AIEA...
  ALIAMANU...FORT SHAFTER...WAHIAWA...HALEIWA...WAIALUA AND MILILANI 
  TOWN.

SOME STREAMS ARE STILL OVERFLOWING BANKS...MAINLY IN THE MOANALUA 
AND CENTRAL OAHU AREA. IT WILL BE SEVERAL MORE HOURS BEFORE THEY 
WILL RECEDE ENOUGH FOR SOME OF THE ROADS THAT WERE CLOSED TO BE 
REOPENED.

MOST HEAVY SHOWERS AND THUNDERSTORMS HAVE MOVED OFF THE ISLAND. 
THERE WILL BE SCATTERED PASSING SHOWERS AND ONLY A CHANCE OF A HEAVY 
SHOWER FOR THE REMAINDER OF THE NIGHT.

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.

$$
LAT...LON 2160 15818 2127 15802 2133 15781 2166 15811

HOAG

1 follow-up statement

000 
WGHW70 PHFO 081220
FFSHI 
HIZ002-081330-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE HONOLULU HI
220 AM HST MON DEC 8 2003

...THE FLASH FLOOD WARNING IS CANCELLED FOR OAHU...

WEATHER RADAR AND AUTOMATED RAIN GAGES INDICATE THE HEAVY RAINFALL 
HAS ENDED. STREAM FLOWS SHOULD BE DECREASING. THE THREAT OF HEAVY 
RUNOFF IS ALSO OVER AND AUTHORITIES REPORT ROADS THAT HAD BEEN 
CLOSED DUE TO FLOODING ARE OPEN.

$$
HOAG

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, 8:30 PM HST, 3 hours 10 minutes earlier.

Area forecast discussion, Dec 7, 8:30 PM HST, 3 hours 10 minutes before

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

.SYNOPSIS...HEAVY SHOWERS AND THUNDERSTORMS ARE STILL POSSIBLE OVER
KAUAI THROUGH MONDAY MORNING. ACTIVITY OVER OAHU IS EXPECTED TO
DIMINISH BEFORE MONDAY MORNING. THE ATMOSPHERE WILL BECOME MORE
STABLE MONDAY AND TRADE WINDS WILL STRENGTHEN WITH THE ESTABLISHMENT
OF HIGH PRESSURE NORTH OF THE STATE.

&&

.DISCUSSION...
ALTHOUGH THE OLD UPPER LEVEL LOW THAT WAS WEST OF KAUAI IS LIFTING
OUT TO THE NORTHEAST A LARGER ONE IS STRENGTHENING ABOUT 1000 MILES
WEST OF KAUAI. IT IS THROWING UP ABUNDANT MID AND HIGH LEVEL CLOUDS
JUST WEST OF THE STATE. CONDITIONS FOR HEAVY PRECIPITATION CONTINUE
TO EXIST OVER KAUAI DUE TO THE WEAK BUT MOIST SOUTHWEST FLOW AND
COOL TEMPERATURES AT MID ATMOSPHERIC LEVELS EVEN INTO MONDAY
MORNING. ADDITIONALLY THERE IS SOME INCREASE IN NORTHEAST WINDS
NORTH OF THE STATE WHICH WOULD CONTRIBUTE TO CONVERGENCE. THEREFORE
A FLOOD WATCH WILL BE ISSUED FOR KAUAI. THE FLOOD WARNING FOR OAHU
WILL BE EXTENDED A COUPLE MORE HOURS SINCE HEAVY SHOWER ACTIVITY
CONTINUES.

IMPROVING WEATHER FOR THE REMAINDER OF THE STATE IS EXPECTED
BEGINNING MONDAY WITH THE STABILIZING INFLUENCE OF THE HIGH THAT
WILL MOVE TO THE NORTH AND 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 PART OF OAHU UNTIL 1030
FLASH FLOOD WATCH FOR KAUAI
SPECIAL MARINE WARNING KAUAI CHANNEL

&&

HOAG

The office that day

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

Issued	Product	Office	Lasted
Dec 7, 3:30 PM HST	Flash Flood Warning	HFO	4 hr
Dec 7, 6:30 PM HST	Flash Flood Warning	HFO	2 hr
Dec 7, 8:55 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.