Alert archive / Hawaii / Flash Flood Warnings in 2004

Flash Flood Warning 9, NWS Honolulu, HI

January 25, 2004

NWS Honolulu, HI issued this flash flood warning at Jan 25, 2004, 4:25 PM HST. 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: Jan 25, 2004, 4:25 PM HST (02:25 UTC)
Expired: Jan 25, 2004, 7:30 PM HST
In force: 3 hr
Issued by: NWS Honolulu, HI
Area: Counties, with a storm outline in the text

The nearest sounding before it

Lihue, (PHLI), launched 00:00Z, 2.4 hours before the alert went out and 259 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: 1703 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 821 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: -26 m²/s²
0-3 km storm-relative helicity: -4 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.9

Open this sounding in Storm Lab

The text

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

000 
WGHW50 PHFO 260226
FFWHI 
HIZ005-260530-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HONOLULU HI
425 PM HST SUN JAN 25 2004

THE NATIONAL WEATHER SERVICE IN HONOLULU HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MOLOKAI

* UNTIL 730 PM HST

* AT 418 PM HST...RADAR INDICATED VERY HEAVY RAIN 4 MILES SOUTHWEST
  OF PAPALAUA VALLEY...OR ABOUT 12 MILES EAST OF KAUNAKAKAI...MOVING
  WEST AT 5 MPH.

* LOCATIONS IN THE WARNING INCLUDE HOOLEHUA...LEINAOPAPIO POINT...
  HUELO ISLAND...PALAAU STATE PARK...KALAUPAPA...KALAUPAPA AIRPORT...
  KAUNAKAKAI...KAMILOLOA...KAWELA AND KUALAPUU

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

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF
STREAMS...HIGHWAYS...UNDERPASSES AND LOW LYING AREAS.

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 OUTRACE 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 OR OTHER LOCAL MEDIA SOURCES FOR THE
LATEST SEVERE WEATHER INFORMATION. REPORT SEVERE WEATHER TO THE
POLICE FOR IMMEDIATE RELAY TO THE NATIONAL WEATHER SERVICE.

LAT...LON 2127 15722 2096 15725 2100 15673 2130 15660
$$
POWELL

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 25, 3:12 PM HST	Flash Flood Warning	HFO	Kauai	3 hr
Jan 25, 3:34 PM HST	Flash Flood Warning	HFO	Kauai	3 hr
Jan 25, 6:30 PM HST	Flash Flood Warning	HFO	Kauai	3 hr
Jan 25, 7:03 PM HST	Flash Flood Warning	HFO		3 hr
Jan 25, 9:30 PM HST	Flash Flood Warning	HFO	Kauai	3 hr
Jan 25, 9:55 PM HST	Flash Flood Warning	HFO		3 hr

Nearby

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

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.