Alert archive / Hawaii / Flash Flood Warnings in 2003
Flash Flood Warning 5, NWS Honolulu, HI
NWS Honolulu, HI issued this flash flood warning at Jul 26, 2003, 7:00 AM 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 counties it named.
The facts
- Issued
- Jul 26, 2003, 7:00 AM HST (17:00 UTC)
- Expired
- Jul 26, 2003, 10:00 AM HST
- In force
- 3 hr
- Issued by
- NWS Honolulu, HI
- Area
- Whole counties
County Kauai County, HI
The nearest sounding before it
Lihue, (PHLI), launched 12:00Z, 5.0 hours before the alert went out and 37 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
- 2120 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 574 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 46 m²/s²
- 0-3 km storm-relative helicity
- 66 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 2.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGHW50 PHFO 261717 FFWHI HIZ001-262000- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE HONOLULU HI 7 AM HST SAT JUL 26 2003 THE NATIONAL WEATHER SERVICE HAS CONTINUED AND EXTENDED THE * FLASH FLOOD WARNING FOR... NORTH AND NORTHEAST KAUAI FROM WAILUA TO HANALEI * UNTIL 10 AM HST * AT 7 AM HST...ALTHOUGH THE HANALEI RIVER IS SUBSIDING AND THE HEAVY RAINS HAVE TEMPORARILY ENDED IN THE HANALEI AREA MORE THUNDERSTORMS HAVE DEVELOPED OVER NORTHEAST KAUAI. IT MAY WELL EXPAND TO HANALEI AGAIN. A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IMMINENT. PERSON ON KAUAI SHOULD TAKE IMMEDIATE ACTION TO PROTECT LIFE AND PROPERTY AND SEEK HIGHER GROUND OR REMAIN INDOORS. 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 TO CROSS FLOODED ROADWAYS. ESCAPE RISING WATER BY CLIMBING DIRECTLY TO HIGHER GROUND. NEVER TRY TO OUTRUN 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...LOCAL TV OR RADIO FOR FURTHER NATIONAL WEATHER SERVICE INFORMATION. $$ MATSUDA
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 Jul 26, 6:04 AM HST, 56 minutes earlier.
Area forecast discussion, Jul 26, 6:04 AM HST, 56 minutes before
NARRATIVE SYNOPTIC DISCUSSION FOR AMERICAN SAMOA AND THE INDEPENDENT STATE OF SAMOA TODAY THROUGH SUNDAY... THE TAIL END OF A COLD FRONT EDGED NORTH OF SAMOA EARLY FRIDAY EVENING. ON SATELLITE IMAGERY THE SHEARLINE PORTION DOES NOT LOOK IMPRESSIVE. ALTHOUGH THERE ARE ISOLATED CBS...THE HEAVY RAINS ARE ASSOCIATED WITH WARM TOPS CLOUDS EXTENDING NO HIGHER THAN 15K FEET. THE RAIN SHOULD BE EASING OFF IN THE NEXT COUPLE OF HOURS. THE GFS KEEPS THE SHEARLINE BAND OVER SAMOA THROUGH SUNDAY THUS MAINTAINING THAT THREAT OF SHOWERS. THE ASSOCIATED GALE LOW NEAR 33S 168W IS EXPECTED TO MOVE SOUTHEAST 10 TO 15 KT DURING THE NEXT 36 HOURS. SINCE IT IS MOVING AT A PRETTY GOOD CLIP...IT DOESNT HAVE THE TIME TO DEVELOP A FETCH AREA. THEREFORE NO SIGNIFICANT SWELL IS EXPECTED. AND SINCE THERE IS NO BROAD HIGH PRESSURE CELL FOLLOWING THE LOW...THE SOUTHEAST TRADES WILL BE LIMITED TO 10 TO 20 MPH THROUGH SUNDAY. OUTLOOK FOR MONDAY THROUGH WEDNESDAY... THE SHEARLINE WILL MOVE SOUTH OF SAMOA MONDAY IN ADVANCE OF ANOTHER EASTWARD MOVING COLD FRONT. THIS COLD FRONT SHOULD NOT VENTURE NORTH OF 18S. THE WINDS WILL SLOWLY SHIFT TO A MORE EASTERLY DIRECTION MONDAY WITH SPEED OF 10 TO 20 MPH. WITH THE SHEARLINE SOUTH OF SAMOA...RELATIVELY DRY CONDITIONS WILL PREVAIL. NARRATIVE DISCUSSION FOR TUVALU TODAY THROUGH MONDAY...TUVALU TIME... THE NEARLY STATIONARY SHEARLINE CUTS ACROSS THE SOUTHERN EXTREMITIES OF YOUR TERRITORY...SOUTH OF FUNAFUTI. SATELLITE PICTURES SHOWS JUST A COUPLE OF ISOLATED THUNDERSTORMS AND A FEW SHOWERS MARKING THE SHEARLINE. THE SHEARLINE ALSO DIVIDES THE STRONGER TRADES OF 10 TO 20 KT TO THE SOUTH AND THE WEAKER AND MORE EAST COMPONENT OF 5 TO 15 KT TO THE NORTH. THE DEGREE OF WEATHER ASSOCIATED WITH THE SHEARLINE IS NOT VERY IMPRESSIVE AND THE GFS IS HINT JUST THAT.
The office that day
Everything else NWS Honolulu, HI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 26, 4:00 AM HST | Flash Flood Warning | HFO | Kauai | 3 hr |
Nearby
Flash Flood Warnings in Hawaii, 2003Every 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; the sounding from the Mesonet's radiosonde archive.