Alert archive / Hawaii / Flash Flood Warnings in 2014
Flash Flood Warning 13, NWS Honolulu, HI
NWS Honolulu, HI issued this flash flood warning at Jul 13, 2014, 7:26 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
- Jul 13, 2014, 7:26 PM HST (05:26 UTC)
- Expired
- Jul 13, 2014, 10:30 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 South Shore radar (PHWA), 53 km from the middle of the area, began a volume at 05:30 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, 5.4 hours before the alert went out and 42 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
- 738 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 527 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 30 m²/s²
- 0-3 km storm-relative helicity
- 114 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
387 WGHW50 PHFO 140526 FFWHFO HIC001-140830- /O.NEW.PHFO.FF.W.0013.140714T0526Z-140714T0830Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE HONOLULU HI 726 PM HST SUN JUL 13 2014 THE NATIONAL WEATHER SERVICE IN HONOLULU HAS ISSUED A * FLASH FLOOD WARNING FOR... THE ISLAND OF HAWAII IN HAWAII COUNTY * UNTIL 1030 PM HST * AT 718 PM HST...RAIN GAGES AT KAPAPALA RANCH AND PAHALA SHOWED HEAVY RAIN FALLING AT RATES OF 1.5 TO 2.25 INCHES PER HOUR NEAR WOOD VALLEY...OR ABOUT 34 MILES SOUTHWEST OF HILO. THE AREA OF HEAVY RAIN WAS NEARLY STATIONARY. ADDITIONAL SHOWERS CONTINUED TO MOVE ASHORE AND FORM UPSLOPE FROM NORTHWEST OF HILO TO SOUTH POINT. * OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO VOLCANO...PEPEEKEO...PAPAIKOU...PAHOA...OOKALA...MOUNTAIN VIEW... LAUPAHOEHOE...KEAAU...KAPOHO...HONOMU...HAWAIIAN PARADISE PARK... HAWAIIAN BEACHES...HAKALAU AND GLENWOOD. 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 1030 PM HST IF FLASH FLOODING PERSISTS. LAT...LON 2014 15529 1949 15466 1883 15563 1898 15582 $$ RYSHKO
1 follow-up statement
481 WGHW70 PHFO 140621 FFSHFO FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE HONOLULU HI 821 PM HST SUN JUL 13 2014 HIC001-140830- /O.CON.PHFO.FF.W.0013.000000T0000Z-140714T0830Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ HAWAII HI- 821 PM HST SUN JUL 13 2014 ...A FLASH FLOOD WARNING REMAINS IN EFFECT FOR THE ISLAND OF HAWAII IN HAWAII COUNTY UNTIL 1030 PM HST... HEAVY SHOWERS AND THUNDERSTORMS CONTINUED TO FORM AND MOVE ASHORE OVER THE BIG ISLAND ROUGHLY FROM LAUPAHOEHOE TO SOUTH POINT... DROPPING RAIN AT RATES OF ONE AND A HALF TO AROUND TWO INCHES AN HOUR. EARLIER RAIN SATURATED THE GROUND IN PLACES...CAUSING NEW PRECIPITATION TO RUN OFF MORE QUICKLY. THE INCREASED RUNOFF KEPT STREAMS RUNNING HIGH. HONOLII STREAM IN PARTICULAR REMAINED NEAR FLOOD STAGE. LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO VOLCANO... PEPEEKEO...PAPAIKOU...PAHOA...OOKALA...MOUNTAIN VIEW...LAUPAHOEHOE... KEAAU...KAPOHO...HONOMU...HILO...HAWAIIAN PARADISE PARK...HAWAIIAN BEACHES...HAKALAU AND GLENWOOD. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WARNING MEANS FLASH FLOODING IS IMMINENT OR OCCURRING IN STREAMS...ROADS AND LOW LYING AREAS. MOVE TO HIGHER GROUND NOW. DO NOT CROSS FAST FLOWING OR RISING WATER IN YOUR VEHICLE OR ON FOOT. TURN AROUND...DON/T DROWN. && THIS WARNING MAY NEED TO BE EXTENDED BEYOND 1030 PM HST IF FLASH FLOODING PERSISTS. LAT...LON 2014 15529 1949 15466 1883 15563 1898 15582 $$ RYSHKO
The office that day
Everything else NWS Honolulu, HI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 13, 3:06 PM HST | Areal Flood Advisory | HFO | Hawaii | 6 hr |
| Jul 13, 6:27 PM HST | Flash Flood Warning | HFO | Hawaii | 3 hr |
| Jul 13, 10:16 PM HST | Flash Flood Warning | HFO | Hawaii | 3 hr |
Nearby
Flash Flood Warnings in Hawaii, 2014Every flash flood warning in 2014
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.