Alert archive / Hawaii / Flash Flood Warnings in 2012
Flash Flood Warning 10, NWS Honolulu, HI
NWS Honolulu, HI issued this flash flood warning at Mar 6, 2012, 7:53 AM HST for Honolulu 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 outline as issued.
The facts
- Issued
- Mar 6, 2012, 7:53 AM HST (17:53 UTC)
- Expired
- Mar 6, 2012, 1:45 PM HST
- In force
- 6 hr
- Issued by
- NWS Honolulu, HI
- Area
- Storm-based polygon
- Flood severity
- None
County Honolulu County, HI
The radar
The Molokai radar (PHMO), 59 km from the middle of the area, began a volume at 17:57 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
Lihue, (PHLI), launched 12:00Z, 5.9 hours before the alert went out and 185 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
- 241 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 472 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 40 m²/s²
- 0-3 km storm-relative helicity
- 316 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.1
The text
As transmitted, in the capitals the NWS used until 2016.
301 WGHW50 PHFO 061753 FFWHFO HIC003-062045- /O.NEW.PHFO.FF.W.0010.120306T1753Z-120306T2045Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE HONOLULU HI 753 AM HST TUE MAR 6 2012 THE NATIONAL WEATHER SERVICE IN HONOLULU HAS ISSUED A * FLASH FLOOD WARNING FOR... THE ISLAND OF OAHU IN HONOLULU COUNTY * UNTIL 1045 AM HST * AT 748 AM HST...RADAR SHOWED HEAVY RAIN OVER SOUTHEAST OAHU FROM DIAMOND HEAD TO HAWAII KAI TO WAIMANALO. * OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO AINA HAINA...PALOLO...NIU VALLEY AND KULIOUOU. 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 OAHU IN HONOLULU COUNTY. THIS WARNING MAY NEED TO BE EXTENDED BEYOND 1045 AM HST IF FLASH FLOODING PERSISTS. LAT...LON 2139 15774 2138 15762 2120 15762 2122 15785 $$ WROE
2 follow-up statements
458 WGHW70 PHFO 061917 FFSHFO FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE HONOLULU HI 917 AM HST TUE MAR 6 2012 HIC003-062045- /O.CON.PHFO.FF.W.0010.000000T0000Z-120306T2045Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ HONOLULU HI- 917 AM HST TUE MAR 6 2012 ...A FLASH FLOOD WARNING REMAINS IN EFFECT FOR THE ISLAND OF OAHU IN HONOLULU COUNTY UNTIL 1045 AM HST... ANOTHER BAND OF HEAVY SHOWERS WILL MOVE OVER ALREADY SATURATED PORTIONS SOUTHEAST OAHU FROM 930 AM TO 1045 AM. LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WAIMANALO. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WARNING MEANS FLASH FLOODING IS IMMINENT OR OCCURRING IN STREAMS...ROADS AND LOW LYING AREAS. MOVE TO HIGHER GROUND NOW. DO NOT CROSS FAST FLOWING OR RISING WATER IN YOUR VEHICLE OR ON FOOT. TURN AROUND...DON/T DROWN. && THIS WARNING MAY NEED TO BE EXTENDED BEYOND 1045 AM HST IF FLASH FLOODING PERSISTS. LAT...LON 2139 15774 2138 15762 2120 15762 2122 15785 $$ WROE
943 WGHW50 PHFO 062040 FFWHFO HIC003-062345- /O.EXT.PHFO.FF.W.0010.000000T0000Z-120306T2345Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE HONOLULU HI 1040 AM HST TUE MAR 6 2012 THE NATIONAL WEATHER SERVICE IN HONOLULU HAS EXTENDED THE * FLASH FLOOD WARNING FOR... THE ISLAND OF OAHU IN HONOLULU COUNTY * UNTIL 145 PM HST * AT 1024 AM HST...RADAR SHOWED A BAND OF HEAVY RAIN CONTINUING TO FALL OVER EAST HONOLULU FROM DIAMOND HEAD TO HAWAII KAI AND MOST OF SOUTHEAST OAHU. WATER HAS BEEN REPORTED ALONG PORTIONS OF KALANIANAOLE HIGHWAY IN EAST HONOLULU...WHILE A ROCK SLIDE WAS REPORTED NEAR SANDY BEACH. RAIN IS FALLING ON SATURATED GROUND... AND ADDITIONAL PERIODS OF HEAVY RAIN WILL LEAD TO FLOODING. * OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WAIMANALO. 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 PRE-EXISTING WARNING THAT WAS IN EFFECT FOR THE ISLAND OF OAHU IN HONOLULU COUNTY. RUNOFF FROM THIS STORM MAY ALSO CAUSE ROCK AND MUDSLIDES IN STEEP TERRAIN. THIS WARNING MAY NEED TO BE EXTENDED BEYOND 145 PM HST IF FLASH FLOODING PERSISTS. LAT...LON 2139 15774 2138 15762 2120 15762 2122 15785 $$ WROE
The office that day
Everything else NWS Honolulu, HI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 5, 3:40 PM HST | Areal Flood Advisory | HFO | Kalawao | 6 hr |
| Mar 5, 4:20 PM HST | Special Marine Warning | HFO | 115 min | |
| Mar 5, 5:14 PM HST | Special Marine Warning | HFO | 61 min | |
| Mar 5, 5:36 PM HST | Flash Flood Warning | HFO | Kauai | 15 hr |
| Mar 5, 6:41 PM HST | Special Marine Warning | HFO | 94 min | |
| Mar 5, 7:30 PM HST | Areal Flood Advisory | HFO | Honolulu | 8 hr |
| Mar 5, 7:53 PM HST | Areal Flood Advisory | HFO | Kalawao | 3 hr |
| Mar 5, 7:53 PM HST | Special Marine Warning | HFO | 112 min | |
| Mar 5, 8:11 PM HST | Special Marine Warning | HFO | 94 min | |
| Mar 5, 8:46 PM HST | Severe Thunderstorm Warning | HFO | Kalawao | 29 min |
| Mar 5, 8:51 PM HST | Special Marine Warning | HFO | 114 min | |
| Mar 5, 9:26 PM HST | Special Marine Warning | HFO | 2 hr | |
| Mar 5, 9:54 PM HST | Special Marine Warning | HFO | 2 hr | |
| Mar 5, 10:41 PM HST | Special Marine Warning | HFO | 2 hr | |
| Mar 5, 11:51 PM HST | Special Marine Warning | HFO | 114 min | |
| Mar 6, 12:58 AM HST | Special Marine Warning | HFO | 2 hr | |
| Mar 6, 1:43 AM HST | Special Marine Warning | HFO | 90 min | |
| Mar 6, 3:25 AM HST | Special Marine Warning | HFO | 2 hr | |
| Mar 6, 6:41 AM HST | Areal Flood Advisory | HFO | Honolulu | 3 hr |
| Mar 6, 6:44 AM HST | Special Marine Warning | HFO | 61 min | |
| Mar 6, 7:10 AM HST | Winter Weather Advisory | HFO | Hawaii | 9 hr |
| Mar 6, 7:27 AM HST | Special Marine Warning | HFO | 63 min | |
| Mar 6, 8:18 AM HST | Special Marine Warning | HFO | 57 min | |
| Mar 6, 8:25 AM HST | Flash Flood Warning | HFO | Kauai | 3 hr |
| Mar 6, 9:11 AM HST | Special Marine Warning | HFO | 64 min | |
| Mar 6, 9:53 AM HST | Special Marine Warning | HFO | 67 min | |
| Mar 6, 10:03 AM HST | Special Marine Warning | HFO | 57 min | |
| Mar 6, 10:21 AM HST | Special Marine Warning | HFO | 27 min | |
| Mar 6, 10:54 AM HST | Special Marine Warning | HFO | 51 min | |
| Mar 6, 11:08 AM HST | Flash Flood Warning | HFO | Kauai | 5 hr |
| Mar 6, 11:41 AM HST | Special Marine Warning | HFO | 49 min | |
| Mar 6, 12:05 PM HST | Flash Flood Warning | HFO | Honolulu | 5 hr |
| Mar 6, 12:22 PM HST | Special Marine Warning | HFO | 39 min | |
| Mar 6, 1:15 PM HST | Special Marine Warning | HFO | 60 min |
Nearby
Flash Flood Warnings in Hawaii, 2012Every flash flood warning in 2012
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.