Alert archive / Hawaii / Flash Flood Warnings in 2006

Flash Flood Warning 108, NWS Honolulu, HI

March 27, 2006Kalawao County, Hawaii

NWS Honolulu, HI issued this flash flood warning at Mar 27, 2006, 9:45 AM HST for Kalawao 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: Mar 27, 2006, 9:45 AM HST (19:45 UTC)
Expired: Mar 27, 2006, 12:45 PM HST
In force: 3 hr
Issued by: NWS Honolulu, HI
Area: Counties, with a storm outline in the text

County Kalawao County, HI

The nearest sounding before it

Hilo, (PITO), launched 12:00Z, 7.8 hours before the alert went out and 261 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 141 J/kg
Mixed-layer CIN: -19 J/kg
Mixed-layer LCL: 760 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 13 m²/s²
0-3 km storm-relative helicity: 130 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 27, 4:00 AM HST, 5 hours 45 minutes earlier.

Area forecast discussion, Mar 27, 4:00 AM HST, 5 hours 45 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HONOLULU HI
400 AM HST MON MAR 27 2006

.SYNOPSIS...
THE WET WEATHER WILL PERSIST THROUGH THE FINAL WEEK OF MARCH AS
TROUGHINESS IN THE UPPER LEVELS OF THE ATMOSPHERE CONTINUES TO
LINGER AROUND THE HAWAIIAN ISLANDS.

&&

.DISCUSSION...
CONSENSUS OF THE COMPUTER SOLUTIONS POINTS TO A SLOWER IMPROVING
TREND THIS WEEK...THUS KEEPING ALL BUT TUESDAY AS WET. BUT A MORE
TYPICAL TRADE PATTERN IS IN THE OFFERING...MORE TOWARD A
SATURDAY/MONDAY TIME FRAME. SO LETS KEEP OUR FINGERS CROSS FOR THE
LATTER TO HAPPEN.

OTHERWISE NOTHING NEW TO ADD FROM THE PREVIOUS DISCUSSION. THE
PHILOSOPHY BEHIND THE FORECAST REMAINS UNCHANGED. ONE SLUG OF
MOISTURE MOVED THROUGH MAUI COUNTY IN THE PAST FEW HOURS WITHOUT
MUCH FANFARE...WHILE KAUAI AND OAHU WERE RATHER QUIET...FOR A
CHANGE. BUT THIS IS SHORT LIVED AS A SHORT WAVE OR DISTURBANCE ALOFT
PUSHES ANOTHER LARGE BATCH OF MOISTURE TOWARDS THE MAIN HAWAIIAN
ISLANDS. AT LEAST THE MORNING HOURS WILL BE SOGGY. THE NEXT BATCH OF
MOISTURE IS SLATED FOR WEDNESDAY INTO THURSDAY AS YET ANOTHER STRONG
TROUGH SWOOPS DOWN FROM THE NORTHWEST AND SLOWLY PUSHES THROUGH THE
MAIN HAWAIIAN ISLANDS. ALL ISLANDS WILL GET THEIR SHARE OF WEATHER.
WINDWISE...FOR THE EXCEPT FOR THE BIG ISLAND...THE EASTERLY WINDS
ARE QUICKLY VEERING TO THE SOUTH THIS MORNING. BY TOMORROW OR
TUESDAY AFTERNOON...ALL ISLANDS SHOULD BE SOUTHERLY...AHEAD OF A
WEAKENING COLD FRONT. THIS FRONT IS SLATED TO BECOME AN INVERTED
TROUGH BY THURSDAY OVER THE CENTRAL ISLANDS...FOLLOW BY DISSIPATION
FRIDAY. ITS DEMISE MEANS THE RETURN OF THE TRADES OVER THE WEEKEND.

THE WINDS PICKED UP OVER THE HALEAKALA SUMMIT DURING THE EVENING
THUS PROMPTING A WIND ADVISORY GOOD UNTIL 6 PM THIS EVENING.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
WINTER STORM WATCH THROUGH LATE TONIGHT FOR MAUNA KEA AN MAUNA LOA.
FLASH FLOOD WATCH THROUGH LATE TONIGHT FOR ALL ISLANDS.
WIND ADVISORY HALEAKALA SUMMIT TODAY.

LAU

In the hours before

Local storm report, Mar 27, 6:50 AM HST, 2 hours 55 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HONOLULU HI
650 AM HST MON MAR 27 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0540 AM     FLASH FLOOD      1 E HANALEI             22.21N 159.49W
03/27/2006                   KAUAI IN KAUAI     HI   EMERGENCY MNGR

            KAUAI CIVIL DEFENSE REPORTED THE CLOSURE OF KUHIO HIGHWAY
            AT THE HANALEI BRIDGE.

&&

KODAMA

The office that day

Everything else NWS Honolulu, HI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 26, 2:43 PM HST	Special Marine Warning	HFO		49 min
Mar 26, 7:00 PM HST	Special Marine Warning	HFO		2 hr
Mar 26, 9:00 PM HST	Special Marine Warning	HFO		2 hr
Mar 26, 9:25 PM HST	Flash Flood Warning	HFO	Kalawao	3 hr
Mar 26, 10:04 PM HST	Wind Advisory	HFO	Kalawao	30 hr
Mar 27, 4:37 AM HST	Winter Weather Advisory	HFO	Hawaii	23 hr
Mar 27, 4:53 AM HST	Flash Flood Warning	HFO	Kauai	3 hr
Mar 27, 7:41 AM HST	Special Marine Warning	HFO		64 min
Mar 27, 7:44 AM HST	Flash Flood Warning	HFO	Kauai	3 hr
Mar 27, 8:37 AM HST	Special Marine Warning	HFO		53 min
Mar 27, 9:09 AM HST	Severe Thunderstorm Warning	HFO	Kalawao	53 min
Mar 27, 9:28 AM HST	Special Marine Warning	HFO		62 min
Mar 27, 9:32 AM HST	Flash Flood Warning	HFO	Kalawao	3 hr
Mar 27, 9:39 AM HST	Severe Thunderstorm Warning	HFO	Kalawao	51 min
Mar 27, 10:25 AM HST	Special Marine Warning	HFO		81 min
Mar 27, 10:29 AM HST	Flash Flood Warning	HFO	Kalawao	3 hr
Mar 27, 12:00 PM HST	Special Marine Warning	HFO		90 min

Nearby

Flash Flood Warnings in Hawaii, 2006 Every 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.