Alert archive / Hawaii / Flash Flood Warnings in 2001

Flash Flood Warning 4, NWS Honolulu, HI

February 9, 2001Kauai County, Hawaii

NWS Honolulu, HI issued this flash flood warning at Feb 9, 2001, 8:36 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 counties it named.

The facts

Issued
Feb 9, 2001, 8:36 AM HST (18:36 UTC)
Expired
Feb 9, 2001, 11:35 AM HST
In force
3 hr
Issued by
NWS Honolulu, HI
Area
Whole counties

County Kauai County, HI

The radar

The South Kauai radar (PHKI), 20 km from the middle of the area, began a volume at 18:37 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Lihue, (PHLI), launched 12:00Z, 6.6 hours before the alert went out and 37 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 2001-02-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 976 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 2001-02-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 64 square meters per square second.19395878Sfc1 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
976 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
533 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
64 m²/s²
0-3 km storm-relative helicity
109 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.6

Open this sounding in Storm Lab

The text

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

000 
WGHW50 PHFO 091836
FFWHI 
HIZ001-092135-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HONOLULU HI
835 AM HST FRI FEB  9 2001

THE NATIONAL WEATHER SERVICE IN HONOLULU HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  KAUAI
  INCLUDING THE COMMUNITIES OF...HANALEI...WAINIHA AND PRINCEVILLE
	 
* UNTIL 1135 AM HST
	
* AT 835 AM HST...NATIONAL WEATHER SERVICE DOPPLER RADAR
  INDICATED STRONG THUNDERSTORMS CONTINUING TO DEVELOP OVER MOUNT
  WAIALEALE ON KAUIA AND THESE WERE DUMPING HEAVY RAINFALL OVER
  THE NORTHERN SECTION OF THAT ISLAND

* THUNDERSTORMS WITH EXCESSIVE RAINFALL WILL BE NEAR...HANALEI...
  WAINIHA AND PRINCEVILLE OVER THE NEXT SEVERAL HOURS

FLASH FLOODING IS EXPECTED IN NORMALLY DRY STREAMBEDS DURING THE
NEXT THREE HOURS. PERSONS IN LOW-LYING OR FLOOD PRONE AREAS SHOULD
MOVE TO HIGHER GROUND.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR
IMMINENT. PERSON ON KAUAI SHOULD TAKE IMMEDIATE ACTION TO PROTECT
LIFE AND PROPERTY AND SEEK HIGHER GROUND OR REMAIN INDOORS.

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 TO CROSS FLOODED ROADWAYS. ESCAPE RISING WATER
BY CLIMBING DIRECTLY TO HIGHER GROUND. NEVER TRY TO OUTRUN A
FLOOD EITHER ON FOOT OR IN YOUR VEHICLE. DO NOT CAMP NEAR STREAMS
OR OTHER AREAS SUBJECT TO FLOODING.

THIS STORM WILL PRODUCE DANGEROUS LIGHTNING. LIGHTNING IS A LEADING
KILLER AND PRECAUTIONS SHOULD BE TAKEN TO AVOID BEING STRUCK BY
LIGHTNING. STAY OUT FROM UNDER TALL TREES AND AWAY FROM THE OCEAN
AND BEACHES IF LIGHTNING IS OCCURRING. DO NOT TOUCH OR REMAIN
CLOSE TO METAL POLES OR FENCES.

STAY TUNED TO NOAA WEATHER RADIO...LOCAL TV OR RADIO FOR FURTHER
NATIONAL WEATHER SERVICE INFORMATION.
 
FARRELL    NATIONAL WEATHER SERVICE HONOLULU

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 8, 11:15 PM HSTFlash Flood WarningHFO3 hr
Feb 9, 12:35 AM HSTFlash Flood WarningHFO3 hr
Feb 9, 8:54 AM HSTFlash Flood WarningHFOKauai3 hr
Feb 9, 9:34 AM HSTFlash Flood WarningHFOKauai3 hr

Nearby

Flash Flood Warnings in Hawaii, 2001Every flash flood warning in 2001

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; radar from the NEXRAD Level II archive.