Alert archive / Hawaii / Flash Flood Warnings in 2015
Flash Flood Warning 39, NWS Honolulu, HI
NWS Honolulu, HI issued this flash flood warning at Sep 6, 2015, 4:26 PM HST for Hawaii 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
- Sep 6, 2015, 4:26 PM HST (02:26 UTC)
- Expired
- Sep 6, 2015, 7:15 PM HST
- In force
- 3 hr
- Issued by
- NWS Honolulu, HI
- Area
- Storm-based polygon
- Flood severity
- None
County Hawaii County, HI
The radar
The Kamuela/Kohala Apt radar (PHKM), 37 km from the middle of the area, began a volume at 02:26 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Hilo, (PITO), launched 00:00Z, 2.4 hours before the alert went out and 95 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
- 121 J/kg
- Mixed-layer CIN
- -19 J/kg
- Mixed-layer LCL
- 1040 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 45 m²/s²
- 0-3 km storm-relative helicity
- 112 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
The text
As transmitted, in the capitals the NWS used until 2016.
962 WGHW50 PHFO 070226 FFWHFO HIC001-070515- /O.NEW.PHFO.FF.W.0039.150907T0226Z-150907T0515Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE HONOLULU HI 426 PM HST SUN SEP 6 2015 THE NATIONAL WEATHER SERVICE IN HONOLULU HAS ISSUED A * FLASH FLOOD WARNING FOR... THE ISLAND OF HAWAII IN HAWAII COUNTY * UNTIL 715 PM HST * AT 421 PM HST...RADAR SHOWED AN AREA OF HEAVY RAIN 7 MILES NORTH OF KAILUA-KONA. THE AREA OF HEAVY RAIN WAS NEARLY STATIONARY. RADAR INDICATED RAINFALL RATES UP TO 3 INCHES PER HOUR ARE POSSIBLE. THE HEAVIEST RAIN WAS LOCATED ALONG HIGHWAY 190 BETWEEN HOLUALOA AND PUUANAHULU. * OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WAIKOLOA BEACH RESORT...KONA VILLAGE RESORT...KEAHOLE POINT...AND PUUANAHULU. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WARNING MEANS FLASH FLOODING IS IMMINENT OR OCCURRING IN STREAMS...ROADS AND LOW LYING AREAS. MOVE TO HIGHER GROUND NOW. DO NOT CROSS FAST FLOWING OR RISING WATER IN YOUR VEHICLE OR ON FOOT. TURN AROUND...DON/T DROWN. && THIS FLASH FLOOD WARNING REPLACES THE FLOOD ADVISORY THAT WAS IN EFFECT FOR THE ISLAND OF HAWAII IN HAWAII COUNTY. THIS WARNING MAY NEED TO BE EXTENDED BEYOND 715 PM HST IF FLASH FLOODING PERSISTS. LAT...LON 1999 15587 1977 15568 1958 15599 1975 15609 $$ BRAVENDER
1 follow-up statement
846 WGHW70 PHFO 070506 FFSHFO FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE HONOLULU HI 706 PM HST SUN SEP 6 2015 HIC001-070515- /O.CAN.PHFO.FF.W.0039.000000T0000Z-150907T0515Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ HAWAII HI- 706 PM HST SUN SEP 6 2015 ...THE FLASH FLOOD WARNING IS CANCELLED FOR THE ISLAND OF HAWAII IN HAWAII COUNTY... WEATHER RADAR AND RAIN GAGES SHOWED THAT THE HEAVY RAINS HAVE ENDED. THUS THE FLASH FLOOD WARNING IS CANCELLED. LAT...LON 1999 15587 1977 15568 1958 15599 1975 15609 $$ REYNES
The office that day
Everything else NWS Honolulu, HI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 6, 2:28 PM HST | Areal Flood Advisory | HFO | Hawaii | 3 hr |
| Sep 6, 4:36 PM HST | Areal Flood Advisory | HFO | Kauai | 3 hr |
| Sep 6, 5:58 PM HST | Areal Flood Advisory | HFO | Honolulu | 2 hr |
| Sep 6, 6:55 PM HST | Flash Flood Warning | HFO | Honolulu | 5 hr |
| Sep 6, 11:34 PM HST | Areal Flood Advisory | HFO | Kalawao | 3 hr |
Nearby
Flash Flood Warnings in Hawaii, 2015Every flash flood warning in 2015
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; radar from the NEXRAD Level II archive.