Alert archive / Hawaii / Flash Flood Warnings in 2004

Flash Flood Warning 1, NWS Honolulu, HI

January 1, 2004Kauai County, Hawaii

NWS Honolulu, HI issued this flash flood warning at Jan 1, 2004, 7:00 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: Jan 1, 2004, 7:00 AM HST (17:00 UTC)
Expired: Jan 1, 2004, 10:00 AM HST
In force: 3 hr
Issued by: NWS Honolulu, HI
Area: Whole counties

County Kauai County, HI

The nearest sounding before it

Lihue, (PHLI), launched 12:00Z, 5.0 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: 146 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 750 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 118 m²/s²
0-3 km storm-relative helicity: 181 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

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

000 
WGHW50 PHFO 011657
FFWHI 
HIZ001-012000-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HONOLULU HI
7 AM HST THU JAN 1 2004

THE NATIONAL WEATHER SERVICE IN HONOLULU HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  THE HANALEI RIVER VALLEY

* UNTIL 10 AM HST

* RADAR INDICATED VERY HEAVY RAIN OVER THE MOUNTAINS DURING THE LAST 
  COUPLE OF HOURS. 

* AN ALARM AT THE HANALEI RIVER GAUGE INDICATES THAT THE RIVER WILL 
  RISE OVER THE BANKS. THIS WILL RESULT IN THE CLOSING OF THE ROAD 
  AT THE HANALEI BRIDGE.

* LOCATIONS IN THE WARNING...HANALEI VALLEY

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 2221 15928 2229 15943 2216 15977 2203 15931

CRAIG

2 follow-up statements

000 
WGHW70 PHFO 011845
FFSHI 
HIZ001-012045-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE HONOLULU HI
845 AM HST THU JAN 1 2004

...A FLASH FLOOD WARNING CONTINUES UNTIL 10 AM HST FOR THE HANALEI 
RIVER VALLEY ON KAUAI...

ALTHOUGH WEATHER RADAR INDICATES THAT THE HEAVY RAIN HAS MOVED EAST 
OF KAUAI...THE HANALEI RIVER IS STILL RUNNING HIGH. POLICE REPORT 
THAT THE RIVER HAS RISEN OVER ITS BANKS AND THAT THE HANALEI BRIDGE 
IS CLOSED. THE RIVER WILL BE SLOW IN LOWERING...SO THE FLASH FLOOD 
WARNING MAY BE EXTENDED BEYOND THE 10 AM EXPIRATION TIME.

STAY TUNED TO NOAA WEATHER RADIO...LOCAL TV OR RADIO FOR FURTHER
INFORMATION FROM THE NATIONAL WEATHER SERVICE.

$$
CRAIG

000 
WGHW70 PHFO 011956
FFSHI 
HIZ001-012100-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE HONOLULU HI
10 AM HST THU JAN 1 2004

...THE FLASH FLOOD WARNING FOR THE HANALEI RIVER VALLEY ON KAUAI IS
   CANCELLED AT 10 AM HST...

THE HEAVY RAIN HAS ENDED...AND THE HANALEI RIVER IS NOW WITHIN ITS 
BANKS. THE HANALEI BRIDGE IS OPEN FOR TRAFFIC...BUT MOTORISTS ARE 
URGED TO DRIVE WITH CAUTION UNTIL THE STANDING WATER DRAINS OFF OF 
ROADWAYS.

$$
CRAIG

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Honolulu, HI wrote its last area forecast discussion before this flash flood warning went out at Jan 1, 5:17 AM HST, 1 hour 43 minutes earlier.

Area forecast discussion, Jan 1, 5:17 AM HST, 1 hour 43 minutes before

NARRATIVE SYNOPTIC DISCUSSION FOR WAKE ISLAND

TODAY THROUGH SUNDAY...
FAIR WEATHER WITH LITTLE CHANGE EXPECTED. SURFACE RIDGE IS TO THE
NORTH. IT WILL BE REINFORCED BY A MIGATING HIGH WILL MOVE IN TO THE
NORTH SATURDAY NIGHT. SATELLITE SHOWS AN AREA OF STABLE CLOUDS TO
THE NORTH. NORTHEAST TRADE WINDS INCREASING TO 15 TO 20 KNOTS AND
BECOMING MORE EASTERLY ON SUNDAY.

A NORTHWEST SWELL 8 TO 9 FEET DECREASING SATURDAY.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 1, 1:45 PM HST	Flash Flood Warning	HFO	Honolulu, Kauai	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.