Alert archive / Hawaii / Flash Flood Warnings in 2017
Flash Flood Warning 9, NWS Honolulu, HI
NWS Honolulu, HI issued this flash flood warning at Mar 7, 2017, 4:44 PM HST for Kalawao 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 7, 2017, 4:44 PM HST (02:44 UTC)
- Expired
- Mar 7, 2017, 7:30 PM HST
- In force
- 3 hr
- Issued by
- NWS Honolulu, HI
- Area
- Storm-based polygon
- Flood severity
- None
County Kalawao County, HI
The radar
The Kamuela/Kohala Apt radar (PHKM), 89 km from the middle of the area, began a volume at 02:44 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, 2.7 hours before the alert went out and 178 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
- 79 J/kg
- Mixed-layer CIN
- -111 J/kg
- Mixed-layer LCL
- 1379 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 89 m²/s²
- 0-3 km storm-relative helicity
- 144 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted.
614
WGHW50 PHFO 080244
FFWHFO
HIC009-080530-
/O.NEW.PHFO.FF.W.0009.170308T0244Z-170308T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash FLood Warning
National Weather Service Honolulu HI
444 PM HST TUE MAR 7 2017
The National Weather Service in Honolulu has issued a
* Flash Flood Warning for...
The island of Maui in Maui County
* Until 730 PM HST
* At 437 PM HST, flooding from Kulanihakoi Gulch has closed South
Kihei Road between Kaonoulu and Kulanihakoi Streets. Heavy
rainfall is also moving over the leeward Haleakala slopes from the
southwest. This rainfall can produce flash flooding in normally
dry gulches from Makena to Kihei and in the Keokea and Kula areas
of Upcountry Maui.
* Locations in the warning include but are not limited to...
Kahului, Kihei, Waikapu, Maalaea, Pauwela, Wailea, Huelo, Paia,
Makawao, Puunene, Kula and Waiehu.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A flash flood warning means that flooding is 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 730 PM HST if heavy rain
persists.
LAT...LON 2064 15607 2063 15622 2058 15631 2059 15642
2064 15646 2079 15647 2078 15655 2094 15651
2090 15648 2090 15644 2095 15633 2094 15625
2082 15611 2080 15601 2073 15599
$$
Kodama2 follow-up statements
467
WGHW70 PHFO 080411
FFSHFO
Flash Flood Statement
National Weather Service Honolulu HI
611 PM HST TUE MAR 7 2017
HIC009-080530-
/O.CON.PHFO.FF.W.0009.000000T0000Z-170308T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Maui HI-
611 PM HST TUE MAR 7 2017
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 730 PM HST FOR THE
ISLAND OF MAUI IN MAUI COUNTY...
At 610 PM HST...radar indicated thunderstorms moving over Maui from
the southwest, producing rainfall rates between two and three inches
per hour. Very heavy rain is impacting areas where flooding is
already occurring in Kihei. Avoid travel in the central valley and
south Maui if possible, as flooding will make for hazardous driving.
Locations in the warning include but are not limited to... Kahului,
Kihei, Waikapu, Maalaea, Pauwela, Wailea, Huelo, Paia, Makawao,
Puunene, Kula and Waiehu.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A flash flood warning means that flooding is imminent or occurring in
streams, roads, and low lying areas. Move to higher ground now.
Do not cross fast flowing water in your vehicle, or on foot. Turn
around, don/t drown.
&&
This warning may need to be extended beyond 730 PM HST if heavy rain
persists.
LAT...LON 2064 15607 2063 15622 2058 15631 2059 15642
2064 15646 2079 15647 2078 15655 2094 15651
2090 15648 2090 15644 2095 15633 2094 15625
2082 15611 2080 15601 2073 15599
$$
Birchard941
WGHW70 PHFO 080526
FFSHFO
Flash Flood Statement
National Weather Service Honolulu HI
726 PM HST TUE MAR 7 2017
HIC009-080533-
/O.EXP.PHFO.FF.W.0009.000000T0000Z-170308T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Maui HI-
726 PM HST TUE MAR 7 2017
...THE FLASH FLOOD WARNING FOR THE ISLAND OF MAUI IN MAUI COUNTY WILL
EXPIRE AT 730 PM HST...
Weather radar shows that heavy rain has ended. Maui Police reports
that some flooding continues along south Kihei road, but flood
waters have otherwise receded.
Heavy rain may redevelop later tonight or Wednesday, and a
Flash Flood Watch remains in effect.
LAT...LON 2064 15607 2063 15622 2058 15631 2059 15642
2064 15646 2079 15647 2078 15655 2094 15651
2090 15648 2090 15644 2095 15633 2094 15625
2082 15611 2080 15601 2073 15599
$$
BirchardThe office that day
Everything else NWS Honolulu, HI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 7, 2:24 PM HST | Areal Flood Advisory | HFO | Kalawao | 3 hr |
| Mar 7, 2:52 PM HST | Special Marine Warning | HFO | 83 min | |
| Mar 7, 3:52 PM HST | Flash Flood Watch | HFO | Hawaii, Honolulu, Kauai, Kalawao | 59 hr |
| Mar 7, 5:30 PM HST | Special Marine Warning | HFO | 60 min | |
| Mar 7, 8:01 PM HST | Areal Flood Advisory | HFO | Hawaii | 3 hr |
| Mar 7, 8:12 PM HST | High Wind Warning | HFO | Hawaii | 43 hr |
| Mar 7, 8:18 PM HST | Winter Storm Watch | HFO | Hawaii | 19 hr |
| Mar 7, 9:23 PM HST | Small Craft Advisory | HFO | 54 hr | |
| Mar 8, 3:34 AM HST | High Surf Warning | HFO | Honolulu, Kauai, Kalawao | 36 hr |
Nearby
Flash Flood Warnings in Hawaii, 2017Every flash flood warning in 2017
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.