Alert archive / Hawaii / Flash Flood Warnings in 2004
Flash Flood Warning 38, NWS Honolulu, HI
NWS Honolulu, HI issued this flash flood warning at Mar 14, 2004, 9:41 AM HST for Honolulu County, 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
- Mar 14, 2004, 9:41 AM HST (19:41 UTC)
- Expired
- Mar 14, 2004, 12:45 PM HST
- In force
- 3 hr
- Issued by
- NWS Honolulu, HI
- Area
- Counties, with a storm outline in the text
Counties Honolulu County, HI, 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 12:00Z, 7.7 hours before the alert went out and 72 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
- 1147 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 737 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- -9 m²/s²
- 0-3 km storm-relative helicity
- -12 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGHW50 PHFO 141942 FFWHI HIZ004-007-142245- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE HONOLULU HI 941 AM HST SUN MAR 14 2004 THE NATIONAL WEATHER SERVICE IN HONOLULU HAS ISSUED A * FLASH FLOOD WARNING FOR NORTH AND EAST HAWAII INCLUDING WINDWARD KOHALA AND HAMAKUA WEST HAWAII INCLUDING LEEWARD KOHALA * UNTIL 1245 PM HST * AT 927 AM HST...AUTOMATED RAIN GAGES INDICATED VERY HEAVY RAIN FROM 6 MILES NORTHWEST OF WAIMEA TO 3 MILES SOUTHEAST OF LAUPAHOEHOE... OR FROM 37 MILES NORTHEAST OF KAILUA-KONA TO 18 MILES NORTHWEST OF HILO. THE AREA OF HEAVY RAIN WAS NEARLY STATIONARY. EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF STREAMS AND COULD ALSO TRIGGER ROCK AND MUDSLIDES IN STEEP TERRAIN. 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. TURN AROUND...DO NOT DROWN 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 FLOODING TO THE POLICE FOR IMMEDIATE RELAY TO THE NATIONAL WEATHER SERVICE. LAT...LON 1999 15594 1986 15516 1994 15506 2035 15592 $$ FARRELL
3 follow-up statements
000 WGHW70 PHFO 142055 FFSHI HIZ004-007-142145- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE HONOLULU HI 1042 AM HST SUN MAR 14 2004 ...A FLASH FLOOD WARNING CONTINUES UNTIL 1245 PM HST FOR WEST HAWAII INCLUDING LEEWARD KOHALA...NORTH AND EAST HAWAII INCLUDING WINDWARD KOHALA AND HAMAKUA... AT 1042 AM HST...WEATHER RADAR CONTINUED TO INDICATE VERY HEAVY RAINFALL MAINLY OVER KOHALA MOUNTAINS...INCLUDING THE KAMUELA WAIMEA AREA. THE HEAVY RAIN WAS SHOWING LITTLE MOVEMENT AND FLASH FLOODING IS EXPECTED TO CONTINUE IN THIS AREA. THE LATEST RAINFALL REPORTS FROM GAGES AROUND THE AREA INCLUDED KAMUELA UPPER...0.69 INCHES IN 15 MINUTES ENDED AT 1030 WEATHER SPOTTER SF12 CALLED AT 1050 AM TO REPORT HEAVY RAIN...PITCH BLACK SKY WITH FREQUENT LIGHTNING AND THUNDER...AND 7.8 INCHES OF RAIN SINCE 230 PM SATURDAY. WEATHER RADAR INDICATED THAT AS MUCH AS 2.5 TO 3.O INCHES OF RAIN MAY HAVE FALLEN IN THE PAST HOUR OVER WINDWARD KOHALA...AND UP TO 8 INCHES OF RAIN IN THE PAST 12 HOURS OVER THE AREA INCLUDING WINDWARD KOHALA AND HAMAKUA DOWN TO ABOUT LAPAHOEHOE. STAY TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA FOR FURTHER INFORMATION FROM THE NATIONAL WEATHER SERVICE. $$ FARRELL
000 WGHW70 PHFO 142141 FFSHI HIZ004-007-142230- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE HONOLULU HI 1132 AM HST SUN MAR 14 2004 ...A FLASH FLOOD WARNING CONTINUES UNTIL 1245 PM HST FOR WEST HAWAII INCLUDING LEEWARD KOHALA AND KONA...NORTH AND EAST HAWAII INCLUDING WINDWARD KOHALA HAMAKUA HILO AND PUNA... AT 1132 AM HST...WEATHER RADAR CONTINUED TO INDICATE VERY HEAVY RAINFALL OVER KOHALA AND THE WAIMEA-KAMUELA AREA AND DOWN THE HAMAKUA COAST TO LAUPAHOEHOE. THE HEAVY RAIN WAS SHOWING LITTLE MOVEMENT AND FLASH FLOODING IS EXPECTED TO CONTINUE IN THIS AREA. BIG ISLAND CIVIL DEFENSE REPORTS HIGHWAY 19 IS NOW CLOSED BETWEEN WAIMEA AND HONOKAA DUE TO FLOODING AND WATER OVER THE ROAD IN SEVERAL PLACES. HIGHWAY 250 IS ALSO CLOSED BETWEEN WAIMEA AND KAWIAHAE DUE TO FLOODING. THE LATEST RAINFALL REPORTS FROM GAGES AROUND THE AREA INCLUDED 3.94 INCHES IN THE PAST 4 HOURS AT KAMUELA UPPER...WITH 1.96 INCHES OF THAT IN THE PAST HOUR. 2.92 INCHES IN THE PAST 4 HOURS AT KAMUELA...WITH 1.48 INCHES OF THAT IN THE PAST HOUR. 2.77 INCHES IN THE PAST 4 HOURS AT KAHUA RANCH...WITH 1.37 INCHES OF THAT IN THE PAST 4 HOURS. WEATHER RADAR INDICATED THAT AS MUCH AS 2 TO 2.5 INCHES OF RAIN MAY HAVE FALLEN IN THE PAST HOUR UPSLOPE AND TO THE SOUTHEAST OF HONOKAA...WITH 10 TO 12 INCHES NOW BEING SHOWN AS FALLEN IN THE PAST 12 HOURS OVER THIS SAME AREA. STAY TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA FOR FURTHER INFORMATION FROM THE NATIONAL WEATHER SERVICE. $$ FARRELL
000 WGHW70 PHFO 142202 CCA FFSHI HIZ004-007-142230- FLASH FLOOD STATEMENT...CORRECTED NATIONAL WEATHER SERVICE HONOLULU HI 1202 PM HST SUN MAR 14 2004 ...A FLASH FLOOD WARNING CONTINUES UNTIL 1245 PM HST FOR WEST HAWAII INCLUDING LEEWARD KOHALA AND KONA...NORTH AND EAST HAWAII INCLUDING WINDWARD KOHALA HAMAKUA HILO AND PUNA... AT 1132 AM HST...WEATHER RADAR CONTINUED TO INDICATE VERY HEAVY RAINFALL OVER KOHALA AND THE WAIMEA-KAMUELA AREA AND DOWN THE HAMAKUA COAST TO LAUPAHOEHOE. THE HEAVY RAIN WAS SHOWING LITTLE MOVEMENT AND FLASH FLOODING IS EXPECTED TO CONTINUE IN THIS AREA. BIG ISLAND CIVIL DEFENSE REPORTS HIGHWAY 19 IS NOW CLOSED BETWEEN WAIMEA AND HONOKAA DUE TO FLOODING AND WATER OVER THE ROAD IN SEVERAL PLACES. HIGHWAY 250 IS ALSO CLOSED BETWEEN WAIMEA AND HAWI PVER THE KOHALA MOUNTAINS WHERE A CULVERT HAS WASHED OUT. THE LATEST RAINFALL REPORTS FROM GAGES AROUND THE AREA INCLUDED 3.94 INCHES IN THE PAST 4 HOURS AT KAMUELA UPPER...WITH 1.96 INCHES OF THAT IN THE PAST HOUR. 2.92 INCHES IN THE PAST 4 HOURS AT KAMUELA...WITH 1.48 INCHES OF THAT IN THE PAST HOUR. 2.77 INCHES IN THE PAST 4 HOURS AT KAHUA RANCH...WITH 1.37 INCHES OF THAT IN THE PAST 4 HOURS. WEATHER RADAR INDICATED THAT AS MUCH AS 2 TO 2.5 INCHES OF RAIN MAY HAVE FALLEN IN THE PAST HOUR UPSLOPE AND TO THE SOUTHEAST OF HONOKAA...WITH 10 TO 12 INCHES NOW BEING SHOWN AS FALLEN IN THE PAST 12 HOURS OVER THIS SAME AREA. STAY TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA FOR FURTHER INFORMATION FROM THE NATIONAL WEATHER SERVICE. $$ 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 Mar 14, 4:00 AM HST, 5 hours 41 minutes earlier.
Area forecast discussion, Mar 14, 4:00 AM HST, 5 hours 41 minutes before
HAWAIIAN ISLANDS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HONOLULU HI 400 AM HST SUN MAR 14 2004 .SYNOPSIS... CLOUDS AND SHOWERS ASSOCIATED WITH A SHEARLINE NEAR THE BIG ISLAND WILL CONTINUE TO FAVOR THE EASTERN HALF OF THE MAIN ISLAND CHAIN THROUGH MUCH OF THE COMING WORK WEEK. STRONG TRADE WINDS WILL DECREASE SLIGHTLY THROUGH THE WEEK...REMAINING STRONGEST OVER THE WESTERN HALF OF THE MAIN ISLAND CHAIN. TRADES WILL INCREASE AGAIN LATE NEXT WEEK. && .DISCUSSION... THERE IS LITTLE CHANGE IN FORECAST PHILOSOPHY FROM LAST EVENING. SHOWERS AND ISOLATED THUNDERSTORMS PERSIST ALONG A WEAKENING SHEARLINE EXTENDING NORTHEAST TO SOUTHWEST ACROSS EAST MAUI AND THE BIG ISLAND THIS MORNING. RADAR SHOWS THAT THERE ARE STILL PATCHES OF MODERATE TO HEAVY RAINFALL...WITH ISOLATED THUNDERSTORMS...OVER PORTIONS OF THE WINDWARD SLOPES OF THE BIG ISLAND AND THE ISLAND OF MAUI. KAUAI...OAHU AND MOLOKAI LIE WEST OF THE MAIN SHEARLINE CLOUD BAND BUT ARE AFFECTED BY WARM-TOPPED BROKEN TO OVERCAST LOW CLOUDS. THESE CLOUDS ARE LESS CONVECTIVE THAN THOSE WITHIN THE CLOUD BAND. SATELLITE LOOPS SHOW THAT NORTHEAST TRADES IN THE 20 TO 30 MPH RANGE PERSIST BEHIND THE SHEARLINE...WITH THE STRONGEST OF THESE WINDS NOTED NEAR KAUAI AND OAHU. A LOW FAR NORTH NORTHEAST OF HAWAII ALONG THE SHEARLINE WILL DRIFT TOWARDS THE ISLANDS THROUGH THE REST OF THE WEEKEND...THEN RETREAT NORTHEASTWARD AGAIN BY THE MIDDLE OF NEXT WEEK. HOWEVER...BECAUSE THIS LOW WILL MOVE PARALLEL TO THE LENGTH OF THE SHEARLINE OVER THE BIG ISLAND INSTEAD OF DUE EASTWARD...THE SHEARLINE ITSELF WILL LIKELY NOT MOVE MUCH THROUGH THE MIDDLE OF NEXT WEEK. THIS MEANS THAT THE EASTERN END OF THE MAIN ISLAND CHAIN WILL SEE THE BULK OF CLOUDS AND SHOWERS ASSOCIATED WITH THIS FEATURE...A FEATURE THAT LATEST MODELS SHOW WILL WASH OUT ONLY VERY SLOWLY. THE LOW WILL FINALLY LIFT NORTHEASTWARD LATE NEXT WEEK...ALLOWING A 1032 MB HIGH TO MOVE IN TO OUR NORTH AND INDUCE A DRIER TRADE WIND PATTERN. && .HFO WATCHES/WARNINGS/ADVISORIES... SMALL CRAFT ADVISORY...ALL HAWAIIAN WATERS POWELL
The office that day
Everything else NWS Honolulu, HI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 14, 12:45 AM HST | Flash Flood Warning | HFO | Honolulu, Kauai | 15 hr |
| Mar 14, 1:15 PM HST | Flash Flood Warning | HFO | Kauai | 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.