Alert archive / Hawaii / Flash Flood Warnings in 2004
Flash Flood Warning 16, NWS Honolulu, HI
NWS Honolulu, HI issued this flash flood warning at Feb 26, 2004, 4:35 PM HST. It was in force for 2 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
- Feb 26, 2004, 4:35 PM HST (02:35 UTC)
- Expired
- Feb 26, 2004, 7:00 PM HST
- In force
- 2 hr
- Issued by
- NWS Honolulu, HI
- Area
- Counties, with a storm outline in the text
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, 2.6 hours before the alert went out and 348 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1959 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 46 m²/s²
- 0-3 km storm-relative helicity
- 49 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 270237 FFWHI HIZ002-270500- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE HONOLULU HI 435 PM HST THU FEB 26 2004 THE NATIONAL WEATHER SERVICE IN HONOLULU HAS CONTINUED A * FLASH FLOOD WARNING FOR SOUTHEAST OAHU * UNTIL 700 PM HST * AT 430 PM HST...RADAR INDICATED HEAVY RAIN CONTINUING OVER PORTIONS OF SOUTHEAST OAHU. ALTHOUGH RAINFALL IS EXPECTED TO DIMINISH EARLY THIS EVENING...RUNOFF FROM THE HEAVY RAINS THIS AFTERNOON WILL CONTINUE. MANOA STREAM HAS BEEN REPORTED TO BE OUT OF ITS BANK IN PARTS OF MANOA VALLEY. MANY ROADS AROUND HONOLULU ARE WATER COVERED WITH SOME LANES REPORTED CLOSED. * LOCATIONS IMPACTED INCLUDE... HONOLULU... MOANALUA... MAUNAWILI... KANEOHE... WAIMANALO... 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. TURN AROUND...DON/T 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 ATTEMPT TO CROSS RUNNING WATER ON FOOT AND STAY AWAY FROM DRAINAGE CANALS AND DITCHES. LAT...LON 2129 15801 2121 15765 2156 15760 2154 15788 $$ NASH
1 follow-up statement
000 WGHW70 PHFO 270445 FFSHI HIZ002-270545- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE HONOLULU HI 645 PM HST THU FEB 26 2004 ...THE FLASH FLOOD WARNING IS CANCELLED FOR SOUTHEAST OAHU... WEATHER RADAR INDICATED THE HEAVY RAINFALL HAS ENDED ACROSS THE WARNED AREA....AND THERE IS NO LONGER A THREAT FOR SERIOUS FLOODING. STAY TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA FOR FURTHER INFORMATION FROM THE NATIONAL WEATHER SERVICE. $$ 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 Feb 26, 4:00 PM HST, 35 minutes earlier.
Area forecast discussion, Feb 26, 4:00 PM HST, 35 minutes before
HAWAIIAN ISLANDS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HONOLULU HI 4 PM HST THU FEB 26 2004 .SYNOPSIS... HEAVY RAIN SHOWERS AND THUNDERSTORMS THAT AFFECTED MAINLY KAUAI AND OAHU TODAY WILL CONTINUE AT TIMES TONIGHT. THE MAIN FRONTAL BAND WILL CROSS KAUAI FRIDAY MORNING...THEN MOVE TO OAHU BY AFTERNOON AND MAUI COUNTY EARLY NIGHT...BRINGING MORE VERY HEAVY RAINFALL AND SCATTERED THUNDERSTORMS WITH ITS PASSAGE. STRONG SOUTH WINDS WILL ALSO PRECEDE THE FRONT...WITH FRESH AND COOLER NORTHERLY WINDS BEHIND IT. THE UNSETTLED WEATHER WILL CONTINUE ON SATURDAY...BUT IS NOW EXPECTED TO EASE OFF SUNDAY AND INTO NEXT WEEK. && .DISCUSSION... LOW PRESSURE DEVELOPING NORTHWEST OF THE HAWAIIAN ISLANDS WILL PUSH A FRONT ACROSS THE STATE FRIDAY INTO SATURDAY. ISOLATED TO SCATTERED SHOWERS WITH SOME THUNDERSTORMS WILL AFFECT THE ISLANDS AHEAD OF THE FRONT...WITH A NEARLY SOLID BAND OF HEAVY SHOWERS AND THUNDERSTORMS MOVING ACROSS THE STATE WITH THE FRONT FRIDAY INTO SATURDAY. A DEVELOPING UPPER LEVEL LOW WILL MOVE BY NEAR THE STATE ON SATURDAY AS WELL...KEEPING OUR WEATHER UNSETTLED. LIGHT SOUTHERLY WINDS THIS EVENING WILL BE INCREASING TOWARD MORNING...THEN BECOME STRONG AND GUSTY ON FRIDAY. WINDS WILL SHIFT TO NORTHERLY BEHIND THE FRONT AND BE STRONG AND GUSTY...AS WELL. && .MARINE... A NORTHWEST SWELL GENERATED BY A LARGE LOW NEAR THE KAMCHATKA PENINSULA WILL ARRIVE NEAR KAUAI TONIGHT AND SPREAD DOWN THE CHAIN FRIDAY. A HIGH SURF ADVISORY IS IN EFFECT AS OF 4 PM TODAY...BUT THE SWELL IS EXPECTED TO RIST HIGH ENOUGH TO WARRANT THE ISSUANCE OF A HIGH SURF WARNING FOR FRIDAY NIGHT AND SATURDAY. SMALL CRAFT ADVISORIES WILL BE ISSUED LATER TONIGHT FOR STRONG SOUTHERLY WINDS...WITH POSSIBLE GALE WARNINGS NEEDED ON FRIDAY. && .HFO WATCHES/WARNINGS/ADVISORIES... HIGH WIND WATCH THROUGH FRIDAY FOR ALL ISLANDS FLOOD WATCH THROUGH FRIDAY FOR ALL BUT THE BIG ISLAND HIGH SURF ADVISORY FOR ALL NORTH AND WEST FACING SHORES AT 4 PM. FARRELL
The office that day
Everything else NWS Honolulu, HI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 27, 12:15 AM HST | Flash Flood Warning | HFO | Kauai | 3 hr |
| Feb 27, 3:15 AM HST | Flash Flood Warning | HFO | Kauai | 3 hr |
| Feb 27, 6:16 AM HST | Flash Flood Warning | HFO | Kauai | 3 hr |
| Feb 27, 11:42 AM 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.