Alert archive / Hawaii / Flash Flood Warnings in 2006

Flash Flood Warning 13, NWS Honolulu, HI

February 21, 2006Kauai County, Hawaii

NWS Honolulu, HI issued this flash flood warning at Feb 21, 2006, 3:11 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
Feb 21, 2006, 3:11 AM HST (13:11 UTC)
Expired
Feb 21, 2006, 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

The nearest sounding before it

Lihue, (PHLI), launched 12:00Z, 1.2 hours before the alert went out and 11 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-pSkew-T log-p diagram, Lihue, at 12:00Z on 2006-02-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 370 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lihue, at 12:00Z on 2006-02-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
370 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
596 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
139 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000
WGHW50 PHFO 211313
FFWHFO
HIC007-211615-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HONOLULU HI
311 AM HST TUE FEB 21 2006

THE NATIONAL WEATHER SERVICE IN HONOLULU HAS CONTINUED A

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

* UNTIL 615 AM HST

* AT 300 AM HST...A GAGE ON THE HANALEI RIVER SHOWED A CONTINUED RISE
  IN WATER LEVEL FROM HEAVY RAIN 8 MILES WEST OF KAPAA...OR ABOUT 10
  MILES NORTHWEST OF LIHUE. THE AREA OF HEAVY RAIN WAS MOVING NORTH  
  SLOWLY.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  WAINIHA...LIHUE...KILAUEA...HANALEI...PRINCEVILLE...MOLOAA AND 
  ANAHOLA.

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 615 AM HST IF
FLASH FLOODING CONDITIONS PERSIST.

LAT...LON 2184 15955 2189 15926 2229 15931 2227 15958

$$
POWELL
1 follow-up statement
000
WGHW70 PHFO 211439
FFSHFO

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE HONOLULU HI
433 AM HST TUE FEB 21 2006

HIC007-211615-
ISLAND OF KAUAI IN KAUAI COUNTY -
433 AM HST TUE FEB 21 2006

...A FLASH FLOOD WARNING REMAINS IN EFFECT FOR THE ISLAND OF KAUAI IN
KAUAI COUNTY UNTIL 615 AM HST...

AT 415 AM HST...A GAGE ON HANALEI RIVER INDICATED A WATER
LEVEL ABOVE FLASH FLOOD THRESHOLD FROM HEAVY RAIN OVER CENTRAL 
KAUAI.  KAUAI POLICE REPORTED THAT THE HIGHWAY AT THE HANALEI RIVER 
BRIDGE HAS BEEN CLOSED.  

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
WAINIHA...KILAUEA...HANALEI...PRINCEVILLE...MOLOAA...KAPAA...WAILUA 
AND ANAHOLA.

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

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

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.

A FLASH FLOOD WATCH CONTINUES FOR KAUAI COUNTY THROUGH WEDNESDAY 
MORNING.

THE FLASH FLOOD WARNING MAY NEED TO BE EXTENDED BEYOND 615 AM HST IF
FLASH FLOODING CONDITIONS PERSIST.

LAT...LON 2184 15955 2189 15926 2229 15931 2227 15958

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 20, 6:45 PM HSTFlash Flood WarningHFOKauai3 hr
Feb 20, 9:39 PM HSTFlash Flood WarningHFOKauai66 min
Feb 21, 12:13 AM HSTFlash Flood WarningHFOKauai3 hr
Feb 21, 5:58 AM HSTFlash Flood WarningHFOKauai3 hr
Feb 21, 7:20 AM HSTSpecial Marine WarningHFO110 min
Feb 21, 8:47 AM HSTFlash Flood WarningHFOKauai3 hr
Feb 21, 11:55 AM HSTSpecial Marine WarningHFO2 hr
Feb 21, 1:48 PM HSTSpecial Marine WarningHFO71 min

Nearby

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.