Flash Flood Warning 92, NWS Honolulu, HI

Issued

Mar 22, 2006, 5:37 PM HST (03:37 UTC)

Expired

Mar 22, 2006, 8:30 PM HST

In force

3 hr

Issued by

NWS Honolulu, HI

Area

Counties, with a storm outline in the text

County Kauai County, HI

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.

966 
WGHW50 PHFO 230343
FFWHFO
HIC007-230630-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HONOLULU HI
537 PM HST WED MAR 22 2006

THE NATIONAL WEATHER SERVICE IN HONOLULU HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE ISLAND OF KAUAI IN KAUAI COUNTY

* UNTIL 830 PM HST

* AT 530 PM HST...RADAR SHOWED HEAVY SHOWERS OVER THE SOUTH SHORE OF 
  KAUAI MOVING NORTHEAST AT 15 MILES PER HOUR.  THE HEAVY SHOWERS 
  WILL SPREAD ACROSS THE ISLAND OVER THE NEXT SEVERAL HOURS.  MORE 
  SHOWERS ARE ALSO MOVING TOWARD KAUAI FROM THE SOUTHWEST.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  HAENA...WAINIHA...KILAUEA...HANALEI...PRINCEVILLE...NA PALI STATE
  PARK...MOLOAA...ANAHOLA...KAPAA...WAILUA...LIHUE...KOLOA...
  POIPU...HANAPEPE...WAIMEA AND KEKAHA.

MOVE TO HIGHER GROUND NOW. STAY AWAY FROM STREAMS AND LOW LYING AREAS
PRONE TO FLOODING.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF STREAMS
AND COULD ALSO TRIGGER ROCK AND MUDSLIDES IN STEEP TERRAIN.

BE ESPECIALLY CAUTIOUS SINCE IT IS HARDER TO SEE FLASH FLOODING IN
THE DARK. AVOID TRAVEL.

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 830 PM HST IF
FLASH FLOODING CONDITIONS PERSIST.

LAT...LON 2193 15982 2180 15936 2226 15921 2223 15977

$$

KODAMA

NWS Honolulu, HI wrote its last area forecast discussion before this flash flood warning went out at Mar 22, 4:00 PM HST, 1 hour 37 minutes earlier.

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HONOLULU HI
400 PM HST WED MAR 22 2006

.SYNOPSIS...
A KONA LOW WILL REMAIN NORTHWEST OF KAUAI THROUGH EARLY NEXT WEEK.
THE LOW WILL KEEP THE ATMOSPHERE UNSTABLE AND DRAW TROPICAL MOISTURE
UP FROM THE SOUTH. THE THREAT OF HEAVY SHOWERS WILL INCREASE AGAIN
TONIGHT AND CONTINUE THROUGH AT LEAST FRIDAY MORNING. MORE HEAVY
SHOWERS COULD COME STARTING SUNDAY NIGHT.

&&

.DISCUSSION...
MOST AREAS GOT A BREAK FROM HEAVY PRECIPITATION THIS AFTERNOON.
SATELLITE LOOPS SHOW EXTENSIVE CLOUD COVER ACROSS THE ISLANDS BUT
ONLY LIGHT RAIN HAS BEEN FALLING OVER MOST AREAS. SATELLITE AND
RADAR DATA SHOW HEAVY SHOWERS AND SCATTERED THUNDERSTORMS SOUTHWEST
OF KAUAI MOVING RAPIDLY TOWARDS THE EAST NORTHEAST. THESE SHOWERS
WILL SPREAD OVER THE ISLANDS TONIGHT BRINGING ANOTHER PERIOD OF
HEAVY RAIN.

A DEEP TROUGH REMAINS NORTHWEST OF KAUAI WITH A KONA LOW CENTERED
850 MILES WEST NORTHWEST OF KAUAI AT 29N 171W. SOUTHWEST FLOW ALOFT
CONTINUES TO PULL VERY MOIST TROPICAL AIR UP OVER THE ISLANDS. THE
GFS MODEL SUGGESTS THAT THE HEAVIER RAIN SOUTHWEST OF KAUAI WILL
SPREAD BACK OVER THE MAIN HAWAIIAN ISLANDS OVER THE NEXT 24 HOURS AS
AN IMPULSE ALOFT AND AN ASSOCIATED SURFACE LOW MOVE EAST NORTHEAST.

THE TROUGH WEST OF THE ISLANDS IS FORECAST TO WEAKEN ENOUGH FRIDAY
TO DRY OUT THE WEATHER...AT LEAST TEMPORARILY. THE MODELS STILL
SUGGEST THAT THE TROUGH WILL REMAIN NORTHWEST OF KAUAI THROUGH EARLY
NEXT WEEK. AS LONG AS THE TROUGH PERSISTS WE WILL NOT SEE TRADE
WINDS RETURN AND WE WILL HAVE A CHANCE OF MORE HEAVY SHOWERS. THE
GFS 150 SUGGESTS WE MAY SEE ANOTHER ROUND OF HEAVY SHOWERS SUNDAY
NIGHT THROUGH TUESDAY MORNING AS THE KONA LOW KICKS OUT EAST
NORTHEAST TO THE NORTH OF THE MAIN HAWAIIAN ISLANDS. THE GFS 150
SHOWS MUCH DRIER WEATHER STARTING NEXT TUESDAY AS THE WINDS ALOFT
SHIFT TO NORTHWEST. THE GFS 150 STILL SHOWS NO RETURN OF TRADE WINDS
THROUGH THE END OF THE MONTH.

&&

.HFO WATCHES/WARNINGS/ADVISORIES...
FLASH FLOOD WATCH THROUGH LATE THURSDAY NIGHT FOR ALL HAWAIIAN
ISLANDS.

&&

DONALDSON

Flash Flood Warnings in Hawaii, 2006Every flash flood warning in 2006

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.