Alert archive / Hawaii / Flash Flood Warnings in 2004
Flash Flood Warning 40, NWS Honolulu, HI
NWS Honolulu, HI issued this flash flood warning at Mar 14, 2004, 2:50 PM 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 outline as issued.
The facts
- Issued
- Mar 14, 2004, 2:50 PM HST (00:50 UTC)
- Expired
- Mar 14, 2004, 6:00 PM HST
- In force
- 3 hr
- Issued by
- NWS Honolulu, HI
- Area
- Counties, with a storm outline in the text
Counties Honolulu County, HI, Kauai County, HI
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Lihue, (PHLI), launched 00:00Z, 0.8 hours before the alert went out and 467 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.
- Mixed-layer CAPE
- 3 J/kg
- Mixed-layer CIN
- -13 J/kg
- Mixed-layer LCL
- 1109 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- -4 m²/s²
- 0-3 km storm-relative helicity
- 17 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGHW50 PHFO 150053
FFWHI
HIZ004-007-150400-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HONOLULU HI
250 PM HST SUN MAR 14 2004
THE NATIONAL WEATHER SERVICE IN HONOLULU HAS ISSUED A
* FLASH FLOOD WARNING FOR
NORTH KOHALA...SOUTH KOHALA...HAMAKUA...
HILO AND PUNA DISTRICTS OF THE BIG ISLAND
* UNTIL 600 PM HST
* AT 245 PM HST...RADAR AND RAIN GAGES INDICATED HEAVY RAINS OVER
THE HILO AND HAMAKUA DISTRICTS OF THE BIG ISLAND. RAIN HAS
DIMINISHED OVER THE KOHALA AREA BUT RUNOFF AND STREAM LEVELS
REMAIN HIGH.
* LOCATIONS IMPACTED INCLUDE...
HAWI...KAMUELA...HONOKAA...HONOMU AND HILO.
EXCESSIVE RUNOFF FROM THIS STORM CONTINUES TO PRODUCE FLASH FLOODING
OF STREAMS AND COULD ALSO TRIGGER ROCK AND MUDSLIDES IN STEEP
TERRAIN.
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. TURN AROUND...DO NOT
DROWN
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 FLOODING TO THE POLICE FOR
IMMEDIATE RELAY TO THE NATIONAL WEATHER SERVICE.
LAT...LON 2030 15587 2012 15595 1933 15503 1950 15480
1994 15509
$$
KODAMA1 follow-up statement
000 WGHW70 PHFO 150340 FFSHI HIZ004-007-151400- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE HONOLULU HI 446 PM HST SUN MAR 14 2004 ...A FLASH FLOOD WATCH REMAINS IN EFFECT FOR THE ENTIRE BIG ISLAND OF HAWAII UNTIL 4 AM HST... ...THE FLASH FLOOD WARNING HAS EXPIRED FOR WEST HAWAII INCLUDING LEEWARD KOHALA AND KONA...AND FOR NORTH AND EAST HAWAII INCLUDING WINDWARD KOHALA HAMAKUA HILO AND PUNA... WEATHER RADAR INDICATED THE HEAVY RAINFALL HAS ENDED ACROSS THE WARNED AREA....AND THERE IS NO LONGER A THREAT FOR SERIOUS FLOODING AT THIS TIME. A FLASH FLOOD WATCH MEANS THAT FLASH FLOODING IS POSSIBLE BUT NOT IMMINENT IN THE WATCH AREA. PERSONS IN THE WATCH AREA... ESPECIALLY THOSE IN LOW LYING AREAS...ALONG STREAMS...AND OTHER DRAINAGES SHOULD BE PREPARED TO TAKE QUICK ACTION IF HEAVY RAINS OR FLOODING OCCURS OR A WARNING IS ISSUED. A SHEARLINE OVER THE BIG ISLAND COMBINED WITH GOOD UPPER LEVEL SUPPORT CONTINUES TO PROVIDE AN ENVIRONMENT FAVORABLE FOR HEAVY RAINS. THE GROUND IS ALSO SATURATED OVER THE KOHALA...HAMAKUA... HILO AND PUNA DISTRICTS WHICH INCREASES THE POSSIBILITY OF FLOODING. STAY TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA FOR FURTHER INFORMATION FROM THE NATIONAL WEATHER SERVICE. $$ FARRELL
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 Mar 14, 2:47 PM HST, 3 minutes earlier.
Area forecast discussion, Mar 14, 2:47 PM HST, 3 minutes before
NARRATIVE SYNOPTIC DISCUSSION FOR AMERICAN SAMOA AND THE INDEPENDENT STATE OF SAMOA TONIGHT THROUGH TUESDAY... HIGH PRESSURE FAR TO THE SOUTH OF SAMOA WILL KEEP EASTERLIES BLOWING ACROSS THE SAMOA ISLANDS IN THE 15 KT RANGE THROUGH TUESDAY. BROAD SURFACE CONVERGENCE ACROSS THE AREA HAS RESULTED IN TWO AREAS OF SIGNIFICANT CONVECTION TO THE NORTHWEST AND SOUTHEAST OF YOUR AREA. WHILE IT APPEARS OVER THE NEXT 24 TO 48 HOURS THAT CONDITIONS WILL CHANGE LITTLE...CANNOT RULE OUT THE POSSIBILITY OF HEAVY CONVECTIVE AREAS DEVELOPING OVER OR MOVING INTO THE SAMOA AREA. EXPECT GENERALLY PARTLY CLOUDY SKIES AND ISOLATED SHOWERS...WITH A FEW BOUTS OF MORE SIGNIFICANT CLOUDS AND SHOWERS THROWN INTO THE MIX. NO SIGNIFICANT SWELL IS EXPECTED. OUTLOOK FOR WEDNESDAY THROUGH FRIDAY... MODELS CONTINUE TO INDICATE NO REAL CHANGES TO THE WEATHER PATTERN THROUGH FRIDAY. TRADES WILL REMAIN IN THE 10 TO 15 KT RANGE. HIGH PRESSURE REMAINS ENTRENCHED EAST OF NEW ZEALAND...THUS BROAD SOUTH PACIFIC CONVERGENCE ZONE WILL STAY PUT OVER OR NEAR YOUR AREA. NARRATIVE DISCUSSION FOR TUVALU TONIGHT THROUGH WEDNESDAY...TUVALU TIME... SCATTERED SHOWERS AND THUNDERSTORMS CONTINUE TO AFFECT PRIMARILY THE SOUTHERN HALF OF THE TUVALU ISLANDS...WITH A FEW DRIFTING OVER THE NORTHERN HALF. WITH LITTLE MOVEMENT OF THE BROAD CONVERGENCE AREA EXPECTED THROUGH THE PERIOD...EXPECT MOSTLY CLOUDY SKIES TO CONTINUE ACROSS THE ENTIRE CHAIN...ALTHOUGH SHOWERS AND THUNDERSTORMS WILL AFFECT PRIMARILY THE SOUTHERN ISLANDS. WINDS WILL REMAIN EASTERLY AROUND 10 KT.
The office that day
Everything else NWS Honolulu, HI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 15, 9:55 AM HST | Flash Flood Warning | HFO | Kauai | 3 hr |
| Mar 15, 1:00 PM HST | Flash Flood Warning | HFO | Kauai | 3 hr |
Nearby
Flash Flood Warnings in Hawaii, 2004Every 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.