Alert archive / Hawaii / Flash Flood Warnings in 2002

Flash Flood Warning 21, NWS Honolulu, HI

October 15, 2002Honolulu County, Kauai County, Hawaii

NWS Honolulu, HI issued this flash flood warning at Oct 15, 2002, 7:52 AM HST for Honolulu County, 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
Oct 15, 2002, 7:52 AM HST (17:52 UTC)
Expired
Oct 15, 2002, 10:45 AM HST
In force
3 hr
Issued by
NWS Honolulu, HI
Area
Whole counties

Counties Honolulu County, HI, Kauai County, HI

The nearest sounding before it

Lihue, (PHLI), launched 12:00Z, 5.9 hours before the alert went out and 60 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 2002-10-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2002-10-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 10 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1173 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
10 m²/s²
0-3 km storm-relative helicity
80 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WGHW50 PHFO 151758
FFWHI 
HIZ003-006-152045-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HONOLULU HI
752 AM HST TUE OCT 15 2002

THE NATIONAL WEATHER SERVICE IN HONOLULU HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  LANAI
  MAUI

* UNTIL 1045 AM HST

* AT 748 AM HST...RADAR INDICATED VERY HEAVY RAIN 29 MILES SOUTHWEST
  OF LANAI CITY...OR ABOUT 42 MILES SOUTH OF KAUNAKAKAI...MOVING EAST
  AT 25 MPH.

* LOCATIONS IN THE WARNING INCLUDE LANAI CITY...OLOWALU...HAIKU... 
  KULA AND KIHEI

RAIN MAY BE VERY HEAVY IN THE WATCH AREA...THE RAINGAGE AT KULA 
INDICATED 1.29 INCHES OF RAINFALL IN THE 15 MINUTES ENDED AT 700 AM 
THIS MORNING.

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.

THIS WILL CONSOLIDATE AND REPLACE THE FLASH FLOOD WARNINGS CURRENTLY 
IN EFFECT FOR MAUI AND LANAI.

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.

$$

FARRELL
3 follow-up statements
000 
WGHW70 PHFO 151809
FFSHI 
HIZ003-006-151905-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE HONOLULU HI
805 AM HST TUE OCT 15 2002

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1045 AM HST FOR
   MAUI AND LANAI...

THE LATEST RAINFALL REPORTS SHOW 1.29 INCHES IN THE 15 MINUTES ENDED 
AT 700 AM AT KULA RAINGAGE.

RADAR INDICATES THAT HEAVY RAINFALL HAS BEEN OCCURRING OVER MAUI... 
WITH AS MUCH AS 2 TO 4 INCHES IN MANY AREAS OVER THE PAST SEVERAL 
HOURS.

THESE STORMS ARE MOVING TOWARD THE EAST NORTHEAST AT ABOUT 20 MPH.

STAY TUNED TO NOAA WEATHER RADIO...LOCAL TV OR RADIO FOR FURTHER 
NATIONAL WEATHER SERVICE INFORMATION.
 
$$
FARRELL
000 
WGHW70 PHFO 151857
FFSHI 
HIZ003-006-151955-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE HONOLULU HI
855 AM HST TUE OCT 15 2002

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1045 AM HST FOR
   MAUI AND LANAI...

THE LATEST RAINFALL REPORTS FROM MAUI SHOW 3.22 INCHES AT WAIKAPU... 
3.40 INCHES AT LAHAINALUNA...2.66 INCHES AT MAHINAHINA AND 2.63 
INCHES AT THE KIHEI GAGE AND 2.05 INCHES AT HAIKU IN THE PAST SIX 
HOURS. LANAI CITY GAGE INDICATES 3.34 INCHES IN THE SAME TIME 
PERIOD. 

RADAR INDICATES THAT MOST ALL THE HEAVY RAINFALL HAS NOW MOVED 
OFFSHORE OF MAUI...INTO THE ALENUIHAHA CHANNEL. HOWEVER...ANOTHER 
AREA OF HEAVY RAINFALL IS NOW SOME 40 MILES TO THE SOUTHWEST OF 
MAUI... AND THIS AREA IS MOVING TOWARD EAST NORTHEAST AT ABOUT 20 
MPH. THESE STORMS SHOULD IMPACT MAUI WITHIN THE NEXT TWO HOURS.

STAY TUNED TO NOAA WEATHER RADIO...LOCAL TV OR RADIO FOR FURTHER 
NATIONAL WEATHER SERVICE INFORMATION.
 
$$
FARRELL
000 
WGHW70 PHFO 152046
FFSHI 
HIZ003-006-152135-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE HONOLULU HI
1035 AM HST TUE OCT 15 2002

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR MAUI...LANAI HAS 
EXPIRED...

...THE FLOOD WATCH IN EFFECT FOR MAUI...LANAI REMAINS IN EFFECT 
UNTIL 4 PM HST...

THE BAND OF HEAVY SHOWERS AND THUNDERSTORMS APPEARS TO BE STATIONARY 
TO THE SOUTH OF MAUI AND LANAI. WHILE SHOWERS WILL CONINUE TO AFFECT 
PORTIONS OF THESE ISLANDS OVER THE NEXT SEVERAL HOURS...NO 
ADDITIONAL FLASH FLOODING IS EXPECTED AT THIS TIME. 

THE FLOOD WATCH REMAINS IN EFFECT FOR POSSIBLE FLASH FLOODING THAT 
IS NOT IMMINENT BUT IS POSSIBLE.

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

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 15, 3:55 AM HSTFlash Flood WarningHFO3 hr
Oct 15, 4:15 AM HSTFlash Flood WarningHFOHonolulu3 hr
Oct 15, 6:03 AM HSTFlash Flood WarningHFOKauai3 hr
Oct 15, 6:55 AM HSTFlash Flood WarningHFOHonolulu, Kauai3 hr
Oct 15, 12:52 PM HSTFlash Flood WarningHFOHonolulu, Kauai3 hr

Nearby

Flash Flood Warnings in Hawaii, 2002Every flash flood warning in 2002

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.