Alert archive / Hawaii / Flash Flood Warnings in 2004
Flash Flood Warning 62, NWS Honolulu, HI
NWS Honolulu, HI issued this flash flood warning at Oct 24, 2004, 10:12 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
- Oct 24, 2004, 10:12 PM HST (08:12 UTC)
- Expired
- Oct 25, 2004, 1:15 AM 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
Lihue, (PHLI), launched 00:00Z, 8.2 hours before the alert went out and 25 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
- 962 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 1073 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 15 m²/s²
- 0-3 km storm-relative helicity
- 33 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGHW50 PHFO 250813 FFWHFO HIC007-251115- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE HONOLULU HI 1012 PM HST SUN OCT 24 2004 THE NATIONAL WEATHER SERVICE IN HONOLULU HAS ISSUED A * FLASH FLOOD WARNING FOR... THE ISLAND OF KAUAI IN KAUAI COUNTY * UNTIL 115 AM HST * AT 949 PM HST...A STREAM GAGE ON THE HANALEI RIVER INDICATED A RAPID RISE ABOVE FLASH FLOOD THRESHOLD FROM A STORM 11 MILES SOUTH OF HANALEI. THE HANALEI RIVER MAY RISE ABOVE ITS BANKS WITHIN THE HOUR. * LOCATIONS IMPACTED INCLUDE... HANALEI... BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. 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 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 2206 15949 2222 15941 2229 15952 2218 15965 $$
1 follow-up statement
000 WGHW70 PHFO 251028 FFSHFO HIC007-251130- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE HONOLULU HI 1230 AM HST MON OCT 25 2004 ...THE FLASH FLOOD WARNING FOR THE HANALEI RIVER ON THE ISLAND OF KAUAI IN KAUAI COUNTY IS CANCELLED... THE HANALEI RIVER GAGE INDICATES THAT THE RIVER WATER HAS LOWERED. THE THREAT OF FLOODING ALONG THE HANALEI RIVER HAS ENDED. STAY TUNED TO NOAA WEATHER RADIO OR OTHER LOCAL MEDIA SOURCES FOR THE LATEST SEVERE WEATHER INFORMATION. REPORT FLOODING TO THE POLICE FOR IMMEDIATE RELAY TO THE NATIONAL WEATHER SERVICE. LAT...LON 2206 15949 2222 15941 2229 15952 2218 15965 $$
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 Oct 24, 8:30 PM HST, 1 hour 42 minutes earlier.
Area forecast discussion, Oct 24, 8:30 PM HST, 1 hour 42 minutes before
HAWAIIAN ISLANDS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HONOLULU HI 830 PM HST SUN OCT 24 2004 .SYNOPSIS... A TROUGH TO THE WEST OF THE ISLANDS WILL CAUSE WINDS TO BECOME SOUTHEASTERLIES STATEWIDE MONDAY. FOR THE NEXT FEW DAYS...LOCALLY HEAVY SHOWERS AND ISOLATED THUNDERSTORMS ARE POSSIBLE...MAINLY OVER MAUKA SECTIONS OF THE ISLANDS EACH AFTERNOON AND EVENING. TRADE WIND WEATHER WILL RETURN AROUND THURSDAY. && .DISCUSSION... THE WINDS ARE SLOWLY SWINGING AROUND TO THE SOUTHEAST IN RESPONSE TO A TROUGH DEEPENING NEAR THE DATELINE. BY ERODING THE SOUTHWEST FLANK OF THE SURFACE HIGH FAR NORTH OF HAWAII...THE TROUGH WILL KEEP THE PREVAILING WINDS OUT OF THE SOUTHEAST THROUGH WEDNESDAY. THE SMALLER ISLANDS WILL SEE LIGHT WINDS...AS THEY WILL BE IN THE WIND SHADOW OF THE BIG ISLAND AND MAUI VOLCANOES. THE LIGHT WINDS WILL LEAD TO AFTERNOON AND EVENING CONVECTION IN THE FORM OF HEAVY SHOWERS AND THUNDERSTORMS OVER LAND. AIDING IN THE CHANCE OF HEAVY SHOWERS AND THUNDERSTORMS IS AN UPPER LOW OVER AND NORTHWEST OF THE ISLANDS. IT WILL DESTABILIZE THE ATMOSPHERE BY PROVIDING COLD TEMPERATURES ALOFT...THEREBY STEEPENING THE TEMPERATURE LAPSE RATE. THE LOW ALOFT WILL ALSO ELIMINATE THE SUBSIDENCE INVERSION...WHICH WHEN IN PLACE USUALLY LIMITS CLOUD GROWTH. ALSO HELPING IN THE FORMATION OF DEEP CONVECTION WILL BE PLUME CLOUDS...WHICH WILL BE AIMING AT DOWNWIND ISLANDS IN THE PREVAILING SOUTHEAST WINDS. BY THURSDAY...MODELS SAY THAT THE UPPER LOW WILL MOVE AWAY AND THE SURFACE LOW WEST OF THE ISLANDS WILL WEAKEN AND SLIDE WEST. THIS WILL ALLOW HIGH PRESSURE NORTHEAST OF THE ISLANDS TO SPREAD WEST AND SOUTHWEST...RESTORING THE TRADE WINDS. && .HFO WATCHES/WARNINGS/ADVISORIES... NONE. && CRAIG
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.