Alert archive / Hawaii / Flash Flood Warnings in 2006
Flash Flood Warning 1, NWS Honolulu, HI
NWS Honolulu, HI issued this flash flood warning at Jan 23, 2006, 5:50 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 outline as issued.
The facts
- Issued
- Jan 23, 2006, 5:50 AM HST (15:50 UTC)
- Expired
- Jan 23, 2006, 8:45 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 12:00Z, 3.8 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
- 973 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 731 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 74 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 231553 FFWHFO HIC007-231845- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE HONOLULU HI 550 AM HST MON JAN 23 2006 THE NATIONAL WEATHER SERVICE IN HONOLULU HAS ISSUED A * FLASH FLOOD WARNING FOR... THE ISLAND OF KAUAI IN KAUAI COUNTY * UNTIL 845 AM HST * AT 515 AM HST...A GAGE ON HANALEI RIVER SHOWED A RAPID RISE IN WATER LEVEL FROM HEAVY RAIN. THE WATER WILL LIKELY GO OVER THE ROAD NEAR THE BRIDGE. MOVE TO HIGHER GROUND NOW. STAY AWAY FROM STREAMS AND LOW LYING AREAS PRONE TO FLOODING. DO NOT TRY TO CROSS FAST FLOWING OR RISING WATER IN YOUR VEHICLE OR ON FOOT. THE WATER MAY BE TOO DEEP TO CROSS SAFELY. TURN AROUND... DON/T DROWN. REPORT FLOODING TO POLICE OR CIVIL DEFENSE OFFICIALS FOR RELAY TO THE NATIONAL WEATHER SERVICE. THIS FLASH FLOOD WARNING MAY NEED TO BE EXTENDED BEYOND 845 AM HST IF FLASH FLOODING CONDITIONS PERSIST. LAT...LON 2210 15957 2210 15938 2228 15938 2228 15957 $$
1 follow-up statement
000 WGHW70 PHFO 231843 FFSHFO FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE HONOLULU HI 845 AM HST MON JAN 23 2006 HIC007-231809- KAUAI IN KAUAI- 845 AM HST MON JAN 23 2006 ...THE FLASH FLOOD WARNING IS CANCELLED FOR THE HANALEI AREA IN KAUAI COUNTY... SERIOUS FLOODING IS NO LONGER EXPECTED. LAT...LON 2210 15957 2210 15938 2228 15938 2228 15957 $$
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 23, 4:00 AM HST, 1 hour 50 minutes earlier.
Area forecast discussion, Jan 23, 4:00 AM HST, 1 hour 50 minutes before
HAWAIIAN ISLANDS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HONOLULU HI 400 AM HST MON JAN 23 2006 .SYNOPSIS...AN UPPER LEVEL TROUGH WILL LINGER OVER THE HAWAIIAN ISLANDS TODAY. IT IS EXPECTED TO SLOWLY WEAKEN IN THE NEXT COUPLE OF DAYS. IN TURN...OUR AIR MASS WILL BECOME MORE STABLE IN TIME. A SURFACE HIGH PRESSURE IS EXPECTED TO BUILD FAR NORTH OF THE ISLANDS TUESDAY...RESULTING IN AN INCREASE OF TRADE WINDS. THIS HIGH WILL PERSIST FAR NORTHEAST OF THE ISLANDS THROUGH THE REST OF THE WEEK...MAINTAINING LIGHT TO MODERATE TRADE WINDS TO OUR AREA. && .DISCUSSION...CONVECTION OVER OAHU HAS FINALLY DECREASED IN THE PAST FEW HOURS. THUS WILL LET THE URBAN AND SMALL STREAM FLOOD ADVISORY FOR OAHU EXPIRE THIS MORNING...THOUGH THE POTENTIAL FOR HEAVY RAIN TO DEVELOP THROUGHOUT THE DAY CONTINUES. CONVECTION HAS ALSO FLARED UP OVER THE WESTERN SLOPE OF MAUNA KEA AND NORTH KONA LATE LAST NIGHT...THOUGH IT HAS ALSO SINCE DISSIPATED. KAUAI HAS ALSO SEEN ITS SHARE OF HEAVY SHOWERS...THOUGH THE SHOWERS TRAVERSE ACROSS QUITE RAPIDLY AND ARE NOT A PROBLEM AT TIME. THE UPPER LEVEL TROUGH WITH A COUPLE OF EMBEDDED LOWS REMAIN IN OUR VICINITY TODAY AND WILL KEEP AIR MASS UNSTABLE OVER THE ISLANDS. FORECAST CHARTS INDICATE THIS TROUGH WILL SLOWLY WEAKEN WITH ONE LOW DRIFTING SOUTH BECOMING CUT OFF WHILE REST OF THE TROUGH SHIFTS EAST. THUS EXPECT UNSETTLED WEATHER TO CONTINUE OVER OUR AREA TODAY. HARD TO PIN POINT EXACTLY WHERE THE HEAVY SHOWERS OR EVEN THUNDERSTORMS TO HIT. HAVE INCREASED THE POPS AND BROAD BRUSHED THE SLIGHT CHANCE OF THUNDERSTORMS TO MOST ZONES TODAY. STILL EXPECT THE WEATHER TO SETTLE DOWN BEGINNING TONIGHT...AS AIR MASS COMING MORE STABLE IN TIME. A SURFACE LOW PRESSURE HAS DEVELOPED OVER THE ISLANDS...AND HAS KEPT OUR TRADE WINDS ON LIGHT SIDE. THIS TROUGH IS TO SHIFT EAST...WITH MODERATE TRADE WINDS RETURNING. ALSO A HIGH PRESSURE FROM THE NORTHWEST WILL BUILD FAR NORTH OF THE ISLANDS BY TUESDAY. EXPECT THE TRADE WINDS TO INCREASE TO MODERATE LEVEL BY THEN. THIS HIGH WILL SETTLE TO THE FAR NORTHEAST OF THE ISLANDS TOWARDS THE LATER PART OF THE WEEK AND WILL PREVAIL. IT WILL ALSO MAINTAIN LIGHT TO MODERATE TRADE WINDS TO OUR AREA. MORE TYPICAL TRADE WIND WEATHER IS TO RETURN THEN AS WELL. && .MARINE... MODERATE WINDS EAST OF THE ISLANDS HAVE GENERATED MODERATE SHORT PERIOD EAST SWELL...AFFECTING OUR EAST FACING SHORES. EXPECT THIS SWELL TO BE REINFORCED BY THE BUILDING TRADE WINDS IN THE COMING DAYS. HIGH SURF ADVISORY FOR THE EAST FACING SHORES CONTINUES. && .HFO WATCHES/WARNINGS/ADVISORIES... HIGH SURF ADVISORY...EAST FACING SHORES && HUI
In the hours before
Local storm report, Jan 23, 1:11 AM HST, 4 hours 39 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HONOLULU HI
111 AM HST MON JAN 23 2006
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0916 PM FLASH FLOOD 5 SE WAIKOLOA VILLAGE 19.89N 155.74W
01/22/2006 HAWAII IN HAWAII HI EMERGENCY MNGR
WAIKOLOA ROAD BETWEEN MILE MARKER 6 AND 9 WAS CLOSED DUE
TO 6 INCHES DEBRIS AND WATER.
&&
HUINearby
Flash Flood Warnings in Hawaii, 2006Every flash flood warning in 2006
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.