Alert archive / Hawaii / Flash Flood Warnings in 2000

Flash Flood Warning 16, NWS Honolulu, HI

November 4, 2000Kauai County, Hawaii

NWS Honolulu, HI issued this flash flood warning at Nov 4, 2000, 12:24 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: Nov 4, 2000, 12:24 AM HST (10:24 UTC)
Expired: Nov 4, 2000, 3:20 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 10:28 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 00:00Z, 10.4 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-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: 1270 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 688 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 37 m²/s²
0-3 km storm-relative helicity: 88 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 3.6

Open this sounding in Storm Lab

The text

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

000 
WGHW50 PHFO 041024
FFWHI
FFWHI 
HIZ004-041320-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HONOLULU HI
1220 AM HST SAT NOV  4 2000

THE NATIONAL WEATHER SERVICE IN HONOLULU HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTH AND EAST HAWAII
  INCLUDING THE COMMUNITIES OF...NORTH AND SOUTH KOHALA
	 
* UNTIL 320 AM HST
	
* AT 1220 AM HST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  STRONG THUNDERSTORMS DEVELOPING AGAIN OFFSHORE TO THE SOUTHWEST OF 
  KOHALA.

* THUNDERSTORMS WITH EXCESSIVE RAINFALL WILL BE NEAR...SOUTH KOHALA
  WITHIN THE NEXT TWO HOURS.

DOPPLER RADAR IS SHOWING A LINE OF VERY HEAVY SHOWERS AND 
THUNDERSTORMS DEVELOPING TO THE WEST AND SOUTHWEST OF SOUTH KOHALA 
AT THIS TIME AND THESE STORMS ARE EXPECTED TO MOVE SLOWLY TOWARD THE 
NORTHEST OVER THE NEST THREE HOURS AND INTO SOUTH AND THEN NORTH 
KOHALA. 

FLASH FLOODING CAN BE EXPECTED IN 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 DANGEROUS FLOODING IS IMMINENT OR
ALREADY OCCURRING. TAKE NECESSARY ACTIONS TO PROTECT LIFE AND
PROPERTY AND CONTINUE PRECAUTIONS UNTIL THE THREAT AND THE WARNING
ARE OVER. 

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. 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.

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.

Issued	Product	Office	Counties	Lasted
Nov 3, 9:09 PM HST	Flash Flood Warning	HFO	Kauai	3 hr
Nov 3, 9:15 PM HST	Flash Flood Warning	HFO	Kauai	3 hr

Nearby

Flash Flood Warnings in Hawaii, 2000 Every flash flood warning in 2000

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.