Flash Flood Warning 18, NWS Honolulu, HI

Issued

Feb 27, 2004, 3:15 AM HST (13:15 UTC)

Expired

Feb 27, 2004, 6:15 AM HST

In force

3 hr

Issued by

NWS Honolulu, HI

Area

Counties, with a storm outline in the text

County Kauai County, HI

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.

000 
WGHW50 PHFO 271314
FFWHI 
HIZ001-271615-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HONOLULU HI
315 AM HST FRI FEB 27 2004

THE NATIONAL WEATHER SERVICE IN HONOLULU HAS CONTINUED A

* FLASH FLOOD WARNING FOR
  KAUAI

* UNTIL 615 AM HST

* AT 310 AM HST...AUTOMATED RAIN GAGES SHOWED THAT RAIN HAS 
  TEMPORARILY LET UP OVER KAUAI BUT RADAR IMAGERY INDICATED THAT 
  MORE HEAVY SHOWERS ARE MOVING TOWARDS THE ISLAND FROM THE 
  SOUTHWEST. THE THREAT OF FLOODING REMAINS IMMINENT.

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

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.

MANY FLASH FLOOD DEATHS OCCUR WHEN MOTORISTS TRY CROSSING FLOODED 
ROADWAYS. BE ALERT FOR FLOODING AND SHOULD NOT ATTEMPT TO CROSS FAST 
FLOWING OR RISING WATER. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS 
HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. TURN 
AROUND...DONT DROWN.

LAT...LON 2201 15988 2180 15945 2216 15917 2233 15955
$$

NWS Honolulu, HI wrote its last area forecast discussion before this flash flood warning went out at Feb 27, 3:00 AM HST, 15 minutes earlier.

NARRATIVE SYNOPTIC DISCUSSION FOR AMERICAN SAMOA AND THE INDEPENDENT
STATE OF SAMOA

TODAY THROUGH SATURDAY...
SATELLITE IMAGERY SHOWS THUNDERSTORMS ASSOCIATED WITH A SURFACE
CONVERGENCE BAND REMAINING NORTH OF SAMOA THIS MORNING. THE MAIN
BAND OF CONVECTION IS NEARLY 150 NM N OF THE SAMOA ISLANDS. IT
APPEARS THAT TC IVY HAS INDUCED AN AREA OF SUBSIDENCE ALONG ITS
NORTHEAST FLANK...REDUCING CONVECTION DIRECTLY OVER SAMOA AND AREAS
NEARBY. HIGH PRESSURE BUILDING FAR TO THE SOUTH WILL DRIVE A
STRENGTHENING RIDGE OVER THE SAMOA REGION BEGINNING THIS MORNING.
THE RIDGE WILL NUDGE THE SURFACE CONVERGENCE BAND NORTHWARD AND AWAY
FROM YOUR AREA. EXPECT MID AND HIGH LEVEL CLOUDS TO THIN OUT
TODAY...WITH PARTLY CLOUDY SKIES REMAINING THEREAFTER THROUGH
SATURDAY. WINDS WILL REMAIN OUT OF THE EAST IN THE 10 TO 15 KT RANGE
THROUGH THE FORECAST PERIOD.

4 TO 5 FOOT NORTH NORTHWEST SWELL WILL CONTINUE A SLOW
DECLINE...REACHING 2 FT BY SATURDAY. A 2 TO 3 FOOT SOUTH SWELL WILL
BE REINFORCED BY ANOTHER SOUTH SWELL TONIGHT AND SATURDAY.

OUTLOOK FOR SUNDAY THROUGH TUESDAY...
SURFACE RIDGE WILL REMAIN TO THE SOUTH. CONTINUED PARTLY CLOUDY
WITH ISOLATED SHOWERS. EAST SOUTHEAST TRADES 5 TO 15 KNOTS BECOMING
LIGHT EASTERLY TRADES 5 TO 10 KNOTS SUNDAY WITH POSSIBILITY OF
AFTERNOON SEA BREEZES.

NARRATIVE DISCUSSION FOR TUVALU

TODAY THROUGH MONDAY...TUVALU TIME...
THE COMPLICATED INTERACTION BETWEEN THE WESTERN END OF A SURFACE
CONVERGENCE BAND AND THE INFLOW OF TROPICAL CYCLONE IVY IS PRODUCING
INTERMITTENT SHOWERS AND THUNDERSTORMS OVER THE TUVALU REGION THIS
MORNING. STRENGTHENING HIGH PRESSURE FAR TO THE SOUTH AND RIDGING
BUILDING IN OVERHEAD SHOULD BE ENOUGH TO PUSH MOST OF THE CONVECTION
NORTH OF THE AREA TODAY. EXPECT PARTLY SKIES WITH LITTLE TO NO
PRECIP AND LIGHT NORTHEAST TRADEWINDS TO 10 KT THEREAFTER.

Flash Flood Warnings in Hawaii, 2004Every flash flood warning in 2004

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.