Alert archive / Hawaii / Flash Flood Warnings in 2001
Flash Flood Warning 9, NWS Honolulu, HI
NWS Honolulu, HI issued this flash flood warning at Apr 6, 2001, 10:00 AM HST for Kauai County, Hawaii. It was in force for 6 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
- Apr 6, 2001, 10:00 AM HST (20:00 UTC)
- Expired
- Apr 6, 2001, 4:00 PM HST
- In force
- 6 hr
- Issued by
- NWS Honolulu, HI
- Area
- Whole counties
County Kauai County, HI
The nearest sounding before it
Lihue, (PHLI), launched 12:00Z, 8.0 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.
- Mixed-layer CAPE
- 306 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 873 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 26 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGHW70 PHFO 061944 FFSHI HIZ001-002-070200- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE HONOLULU HI 10 AM HST FRI APR 6 2001 ...THE FLASH FLOOD WATCH WILL BE CANCELED FOR OAHU AT 10 AM BUT WILL REMAIN IN EFFECT FOR KAUAI UNTIL 4 PM... HEAVY THUNDERSTORMS STILL EXIST JUST WEST OF NIIHAU AND WITH ITS NEARBY INSTABILITY MAY CAUSE AFTERNOON HEAVY RAIN FORMATION OVER KAUAI THIS AFTERNOON. SMALLER POCKETS OF HEAVY SHOWERS MAY ALSO DEVELOP OVER OAHU TODAY THEY DO NOT POSE AS A SERIOUS FLOODING THREAT. PERSONS ON KAUAI SHOULD REMAIN ALERT FOR THE ONSET OF HEAVY RAINS OR THE ISSUANCE OF A FLASH FLOOD WARNING. RESIDENTS SHOULD STAY AWAY FROM FLOOD PRONE AREAS..MOTORISTS SHOULD DRIVE WITH EXTRA CARE AND AVOID ANY FAST FLOWING WATERS. STAY TUNED TO NOAA WEATHER RADIO LOCAL TV OR RADIO FOR FURTHER NATIONAL WEATHER SERVICE INFORMATION. MATSUDA NATIONAL WEATHER SERVICE HONOLULU
2 follow-up statements
000 WGHW70 PHFO 061944 FFSHI HIZ001-002-070200- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE HONOLULU HI 10 AM HST FRI APR 6 2001 ...THE FLASH FLOOD WATCH WILL BE CANCELED FOR OAHU AT 10 AM BUT WILL REMAIN IN EFFECT FOR KAUAI UNTIL 4 PM... HEAVY THUNDERSTORMS STILL EXIST JUST WEST OF NIIHAU AND WITH ITS NEARBY INSTABILITY MAY CAUSE AFTERNOON HEAVY RAIN FORMATION OVER KAUAI THIS AFTERNOON. SMALLER POCKETS OF HEAVY SHOWERS MAY ALSO DEVELOP OVER OAHU TODAY THEY DO NOT POSE AS A SERIOUS FLOODING THREAT. PERSONS ON KAUAI SHOULD REMAIN ALERT FOR THE ONSET OF HEAVY RAINS OR THE ISSUANCE OF A FLASH FLOOD WARNING. RESIDENTS SHOULD STAY AWAY FROM FLOOD PRONE AREAS..MOTORISTS SHOULD DRIVE WITH EXTRA CARE AND AVOID ANY FAST FLOWING WATERS. STAY TUNED TO NOAA WEATHER RADIO LOCAL TV OR RADIO FOR FURTHER NATIONAL WEATHER SERVICE INFORMATION. MATSUDA NATIONAL WEATHER SERVICE HONOLULU
000 WGHW70 PHFO 062356 FFSHI FFSHI HIZ001-070200- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE HONOLULU HI 2 PM HST FRI APR 6 2001 ...THE FLASH FLOOD WATCH WILL REMAIN IN EFFECT UNTIL 4 PM... THUNDERSTORMS WEST OF KAUAI HAVE BECOME ISOLATED. HOWEVER MOISTURE FROM OAHU AND MOLOKAI IS HEADING TOWARD KAUAI WHICH COULD BE ENHANCED LATER THIS AFTERNOON. WE WILL EITHER RENEW OR CANCEL THE WATCH STATUS FOR KAUAI AT 4 PM DEPENDING UPON FURTHER CLOUD DEVELOPMENT AND DATA. PERSONS ON KAUAI SHOULD REMAIN ALERT FOR THE ONSET OF HEAVY RAINS OR THE ISSUANCE OF A FLASH FLOOD WARNING. RESIDENTS SHOULD STAY AWAY FROM FLOOD PRONE AREAS..MOTORISTS SHOULD DRIVE WITH EXTRA CARE AND AVOID FAST FLOWING FLOOD WATERXS. STAY TUNED TO NOAA WEATHER RADIO LOCAL TV OR RADIO FOR FURTHER NATIONAL WEATHER SERVICE INFORMATION. MATSUDA NATIONAL WEATHER SERVICE HONOLULU
Nearby
Flash Flood Warnings in Hawaii, 2001Every flash flood warning in 2001
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.