Alert archive / Hawaii / Flash Flood Warnings in 2004
Flash Flood Warning 10, NWS Honolulu, HI
NWS Honolulu, HI issued this flash flood warning at Jan 25, 2004, 6:30 PM HST for Kauai County, Hawaii. 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 outline as issued.
The facts
- Issued
- Jan 25, 2004, 6:30 PM HST (04:30 UTC)
- Expired
- Jan 25, 2004, 9:30 PM HST
- In force
- 3 hr
- Issued by
- NWS Honolulu, HI
- Area
- Counties, with a storm outline in the text
County Kauai County, HI
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Hilo, (PITO), launched 00:00Z, 4.5 hours before the alert went out and 13 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 1235 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 1163 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 44 m²/s²
- 0-3 km storm-relative helicity
- 70 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGHW50 PHFO 260430 FFWHI HIZ004-260730- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE HONOLULU HI 630 PM HST SUN JAN 25 2004 THE NATIONAL WEATHER SERVICE IN HONOLULU HAS ISSUED A * FLASH FLOOD WARNING FOR... NORTH AND EAST HAWAII INCLUDING WINDWARD KOHALA HAMAKUA HILO AND PUNA * UNTIL 930 PM HST * AT 630 PM HST...RADAR INDICATED VERY HEAVY RAIN OVER THE HILO AND PUNA DISTRICTS. THE AREA OF HEAVY RAIN WAS NEARLY STATIONARY. * LOCATIONS IN THE WARNING AREA INCLUDE HILO...KEAAU AND KURTISTOWN 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. 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 1947 15471 2001 15518 2028 15585 1922 15516 $$ CRAIG
1 follow-up statement
000 WGHW70 PHFO 260603 FFSHI HIZ004-260800- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE HONOLULU HI 8 PM HST SUN JAN 25 2004 ...A FLASH FLOOD WARNING CONTINUES UNTIL 930 PM FOR NORTH AND EAST HAWAII INCLUDING WINDWARD KOHALA HAMAKUA HILO AND PUNA... AT 8 PM HST...WEATHER RADAR SHOWED THAT VERY HEAVY RAIN...THOUGH SMALLER IN AREAL COVERAGE...CONTINUES OVER THE HILO AND PUNA DISTRICTS. THE HEAVY RAIN WAS NOT MOVING...AND FLASH FLOODING IS EXPECTED TO CONTINUE IN THIS AREA. STAY TUNED TO NOAA WEATHER RADIO...LOCAL TV OR RADIO FOR FURTHER INFORMATION FROM THE NATIONAL WEATHER SERVICE. $$
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 Jan 25, 5:00 PM HST, 1 hour 30 minutes earlier.
Area forecast discussion, Jan 25, 5:00 PM HST, 1 hour 30 minutes before
HAWAIIAN ISLANDS FORECAST DISCUSSION...DELAYED NATIONAL WEATHER SERVICE HONOLULU 500 PM HST SUN JAN 25 2004 .SYNOPSIS... HEAVY SHOWERS AND THUNDERSTORMS WILL CONTINUE TO SPREAD WESTWARD OVER THE NEXT FEW HOURS. A COLD FRONT APPROACHING FROM THE WEST WILL REACH KAUAI TONIGHT...ADDING MORE HEAVY SHOWERS AND THUNDERSTORMS TO THE MIX. TRADE WIND WEATHER WILL RETURN NO EARLIER THAN WEDNESDAY. && .DISCUSSION... AN UPPER TROUGH WEST OF THE MAIN ISLANDS...MOISTURE MOVING WESTWARD IN RESURGENT TRADES...AND AN APPROACHING COLD FRONT WEST OF KAUAI ARE COMBINING TO PRODUCE A PROLIFIC RAINMAKING AND SEVERE WEATHER EVENT THIS AFTERNOON. CONDITIONS ARE VERY UNSTABLE...THANKS TO THE UPPER TROUGH...WITH MUCH COLDER THAN NORMAL TEMPERATURES ALOFT. SATELLITE LOOPS CORROBORATE THE INSTABILITY NOTED IN THE SOUNDING DATA...WITH SHOWERY LOW CLOUDS AND ISOLATED THUNDERSTORMS SLOWLY WORKING THEIR WAY WESTWARD ACROSS LOCAL WATERS WITHIN SLUGGISH LOW LEVEL FLOW AND ALONG A PREVIOUS OUTFLOW BOUNDARY FROM EARLIER THUNDERSTORMS NORTHEAST OF THE STATE. A COLD FRONT APPROACHING FROM THE NORTHWEST HAS A SECOND AREA OF HEAVY SHOWERS AND THUNDERSTORMS WHICH WILL AFFECT THE ISLANDS LATER THIS AFTERNOON AND OVERNIGHT TONIGHT. ANOTHER SURFACE FEATURE IS A RIDGE OF HIGH PRESSURE WHICH EXTENDS WEST ALONG ABOUT 28N...INDUCING A STEEP ENOUGH PRESSURE GRADIENT TO PRODUCE THE WEAK TRADES WHICH ARE BRINGING MOISTURE BACK INTO OUR WEATHER PICTURE. IT IS THIS COMBINATION OF INSTABILITY AND INCREASING MOISTURE THAT WILL CONTINUE TO TRIGGER HEAVY SHOWERS AND THUNDERSTORMS ACROSS THE MAIN ISLANDS LATER THIS AFTERNOON AND TONIGHT. A FLASH FLOOD WATCH REMAINS IN EFFECT FOR ALL ISLANDS OVERNIGHT. NUMEROUS FLASH FLOOD WARNINGS ARE IN EFFECT...FOR THE BIG ISLAND...MAUI AND EAST MOLOKAI AT THIS HOUR. BY WEDNESDAY...THE UPPER TROUGH WILL MOVE EAST OF THE BIG ISLAND AND BEGIN TO FILL. THE SURFACE RIDGE WILL STRENGTHEN AT THE SAME TIME...INDUCING DRIER MODERATE TRADE WIND FLOW. && .SURF... SURF HEIGHTS HAVE FALLEN BELOW ADVISORY HEIGHTS THIS AFTERNOON...SO THE HIGH SURF ADVISORY WAS CANCELLED AT 4 PM HST. && .HNL WATCHES/WARNINGS/ADVISORIES... FLASH FLOOD WATCH......ALL HAWAIIAN ISLANDS HIGH SURF ADVISORY.....CANCELLED AT 4 PM HST && POWELL
The office that day
Everything else NWS Honolulu, HI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 25, 3:12 PM HST | Flash Flood Warning | HFO | Kauai | 3 hr |
| Jan 25, 3:34 PM HST | Flash Flood Warning | HFO | Kauai | 3 hr |
| Jan 25, 4:25 PM HST | Flash Flood Warning | HFO | 3 hr | |
| Jan 25, 7:03 PM HST | Flash Flood Warning | HFO | 3 hr | |
| Jan 25, 9:30 PM HST | Flash Flood Warning | HFO | Kauai | 3 hr |
| Jan 25, 9:55 PM HST | Flash Flood Warning | HFO | 3 hr |
Nearby
Flash Flood Warnings in Hawaii, 2004Every flash flood warning in 2004
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.