Alert archive / Hawaii / Flash Flood Warnings in 2016
Flash Flood Warning 8, NWS Honolulu, HI
NWS Honolulu, HI issued this flash flood warning at Jul 23, 2016, 8:33 AM 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 23, 2016, 8:33 AM HST (18:33 UTC)
- Expired
- Jul 23, 2016, 11:30 AM 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), 63 km from the middle of the area, began a volume at 18:33 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 12:00Z, 6.6 hours before the alert went out and 33 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
- 177 J/kg
- Mixed-layer CIN
- -52 J/kg
- Mixed-layer LCL
- 542 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 58 m²/s²
- 0-3 km storm-relative helicity
- 167 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.0
The text
As transmitted.
488
WGHW50 PHFO 231833
FFWHFO
HIC001-232130-
/O.NEW.PHFO.FF.W.0008.160723T1833Z-160723T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HONOLULU HI
833 AM HST SAT JUL 23 2016
THE NATIONAL WEATHER SERVICE IN HONOLULU HAS ISSUED A
* FLASH FLOOD WARNING FOR...
THE ISLAND OF HAWAII IN HAWAII COUNTY
* UNTIL 1130 AM HST
* AT 823 AM HST...EMERGENCY MANAGEMENT REPORTED FLOODING HAS CLOSED
KAPUNA ROAD IN THE HAMAKUA DISTRICT. RADAR SHOWED MAXIMUM RAIN
RATES OF 1 TO 2 INCHES PER HOUR ALONG THE KOHALA AND HAMAKUA
SLOPES. ADDITIONAL RAIN BANDS ASSOCIATED WITH APPROACHING TROPICAL
STORM DARBY WILL CONTINUE TO MOVE OVER THE WINDWARD SLOPES OF THE
BIG ISLAND THROUGH THE DAY.
* LOCATIONS IN THE WARNING INCLUDE ALL LOCATIONS IN THE NORTH KOHALA...
SOUTH KOHALA...HAMAKUA...NORTH HILO...
SOUTH HILO AND PUNA DISTRICTS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A FLASH FLOOD WARNING MEANS THAT FLOODING IN IMMINENT OR OCCURRING IN
STREAMS...ROADS...AND LOW LYING AREAS. MOVE TO HIGHER GROUND NOW.
DO NOT CROSS FAST FLOWING WATER IN YOUR VEHICLE...OR ON FOOT. TURN
AROUND...DON/T DROWN.
&&
THIS WARNING REPLACES THE FLOOD ADVISORY THAT WAS IN EFFECT FOR
HAWAII COUNTY.
THIS WARNING MAY NEED TO BE EXTENDED BEYOND 1130 AM HST IF HEAVY RAIN
PERSISTS.
LAT...LON 1948 15482 1934 15499 1927 15516 1927 15527
1958 15541 1995 15565 2004 15584 2009 15588
2025 15590 2025 15577 2012 15559 2011 15546
2001 15526 1985 15509 1974 15510 1974 15500
1965 15499 1953 15481
$$
KODAMA2 follow-up statements
185
WGHW70 PHFO 231939
FFSHFO
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE HONOLULU HI
939 AM HST SAT JUL 23 2016
HIC001-232130-
/O.CON.PHFO.FF.W.0008.000000T0000Z-160723T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HAWAII HI-
939 AM HST SAT JUL 23 2016
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1130 AM HST FOR
THE ISLAND OF HAWAII IN HAWAII COUNTY...
AT 934 AM HST...RADAR INDICATED HEAVY RAIN CONTINUING OVER THE
WINDWARD SLOPES OF THE BIG ISLAND. THE HEAVIEST RAINFALL...WITH
RATES OF 1 TO 2 INCHES PER HOUR...WERE OCCURRING OVER THE HAMAKUA
DISTRICT BETWEEN NINOLE AND WAIMEA.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO...ALL
LOCATIONS IN THE NORTH KOHALA... SOUTH KOHALA...HAMAKUA...NORTH
HILO... SOUTH HILO AND PUNA DISTRICTS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A FLASH FLOOD WARNING MEANS THAT FLOODING IN IMMINENT OR OCCURRING IN
STREAMS...ROADS...AND LOW LYING AREAS. MOVE TO HIGHER GROUND NOW.
DO NOT CROSS FAST FLOWING WATER IN YOUR VEHICLE...OR ON FOOT. TURN
AROUND...DON/T DROWN.
&&
THIS WARNING MAY NEED TO BE EXTENDED BEYOND 1130 AM HST IF HEAVY RAIN
PERSISTS.
LAT...LON 1948 15482 1934 15499 1927 15516 1927 15527
1958 15541 1995 15565 2004 15584 2009 15588
2025 15590 2025 15577 2012 15559 2011 15546
2001 15526 1985 15509 1974 15510 1974 15500
1965 15499 1953 15481
$$
KODAMA164
WGHW70 PHFO 232119
FFSHFO
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE HONOLULU HI
1119 AM HST SAT JUL 23 2016
HIC001-232124-
/O.CAN.PHFO.FF.W.0008.000000T0000Z-160723T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HAWAII HI-
1119 AM HST SAT JUL 23 2016
...THE FLASH FLOOD WARNING FOR THE ISLAND OF HAWAII IN HAWAII COUNTY
IS CANCELLED...
RADAR AND RAIN GAGES SHOWED THAT RAINFALL HAS DECREASED OVER THE
LAST COUPLE OF HOURS AND REPORTS FROM EMERGENCY MANAGEMENT INDICATED
THAT EARLIER FLOODING IN THE HAMAKUA AND WAIMEA AREAS HAS RECEDED.
HOWEVER...STREAM LEVELS ARE REMAIN ELEVATED.
THUS...THE FLASH FLOOD WARNING HAS BEEN CANCELLED AND WILL BE
REPLACED BY A FLOOD ADVISORY.
A FLASH FLOOD WATCH REMAINS IN EFFECT FOR HAWAII COUNTY THROUGH
SUNDAY AFTERNOON.
LAT...LON 1948 15482 1934 15499 1927 15516 1927 15527
1958 15541 1995 15565 2004 15584 2009 15588
2025 15590 2025 15577 2012 15559 2011 15546
2001 15526 1985 15509 1974 15510 1974 15500
1965 15499 1953 15481
$$
KODAMAThe office that day
Everything else NWS Honolulu, HI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 23, 7:05 AM HST | Areal Flood Advisory | HFO | Kalawao | 6 hr |
| Jul 23, 7:17 AM HST | Areal Flood Advisory | HFO | Hawaii | 3 hr |
| Jul 23, 11:27 AM HST | Areal Flood Advisory | HFO | Hawaii | 3 hr |
| Jul 23, 1:01 PM HST | Areal Flood Advisory | HFO | Kalawao | 3 hr |
Nearby
Flash Flood Warnings in Hawaii, 2016Every flash flood warning in 2016
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.