Alert archive / Hawaii / Flash Flood Warnings in 2011
Flash Flood Warning 7, NWS Honolulu, HI
NWS Honolulu, HI issued this flash flood warning at Jan 13, 2011, 12:54 AM HST for Kalawao County, Hawaii. It was in force for 3 hr. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jan 13, 2011, 12:54 AM HST (10:54 UTC)
- Expired
- Jan 13, 2011, 3:45 AM HST
- In force
- 3 hr
- Issued by
- NWS Honolulu, HI
- Area
- Storm-based polygon
- Flood severity
- None
County Kalawao County, HI
The radar
The Molokai radar (PHMO), 11 km from the middle of the area, began a volume at 10:54 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jan 13, 2:00 AM HST | FLASH FLOOD | Kawela, HI | HEAVY RAIN CAUSED A MUD/ROCK SLIDE ALONG THE KAMEHAMEHA HIGHWAY NEAR KAWELA ON THE ISLAND OF MOLOKAI. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Lihue, (PHLI), launched 00:00Z, 10.9 hours before the alert went out and 253 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
- 1297 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 763 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 30 m²/s²
- 0-3 km storm-relative helicity
- 164 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 3.5
The text
As transmitted, in the capitals the NWS used until 2016.
931 WGHW50 PHFO 131054 FFWHFO HIC009-131345- /O.NEW.PHFO.FF.W.0007.110113T1054Z-110113T1345Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE HONOLULU HI 1254 AM HST THU JAN 13 2011 THE NATIONAL WEATHER SERVICE IN HONOLULU HAS ISSUED A * FLASH FLOOD WARNING FOR... THE ISLAND OF MOLOKAI IN MAUI COUNTY * UNTIL 345 AM HST * AT 1244 AM HST...RADAR SHOWED VERY HEAVY RAIN MOVING OVER WEST MOLOKAI FROM THE SOUTHWEST. HEAVY RAIN WILL SPREAD EASTWARD OVER THE NEXT SEVERAL HOURS. * THIS WARNING COVERS THE ENTIRE ISLAND OF MOLOKAI. 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 MOLOKAI IN MAUI COUNTY. THIS WARNING MAY NEED TO BE EXTENDED BEYOND 345 AM HST IF FLASH FLOODING PERSISTS. LAT...LON 2127 15727 2119 15664 2101 15682 2107 15737 $$ KODAMA
2 follow-up statements
541 WGHW70 PHFO 131147 FFSHFO FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE HONOLULU HI 147 AM HST THU JAN 13 2011 HIC009-131345- /O.CON.PHFO.FF.W.0007.000000T0000Z-110113T1345Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ MOLOKAI IN MAUI COUNTY- 147 AM HST THU JAN 13 2011 ...A FLASH FLOOD WARNING REMAINS IN EFFECT FOR THE ISLAND OF MOLOKAI IN MAUI COUNTY UNTIL 345 AM HST... HEAVY RAINFALL HAS SPREAD EASTWARD ACROSS THE ISLAND OF MOLOKAI. ADDITIONAL AREAS OF RAINFALL WERE EXPECTED TO MOVE OVER THE ISLAND FROM THE SOUTHWEST. THE FLASH FLOOD WARNING COVERS THE ENTIRE ISLAND OF MOLOKAI. HIGHWAY 450 ALONG THE SOUTH SIDE OF THE ISLAND IS ESPECIALLY VULNERABLE TO FLOODING PROBLEMS AT LOW WATER CROSSINGS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WARNING MEANS FLASH FLOODING IS IMMINENT OR OCCURRING IN STREAMS...ROADS AND LOW LYING AREAS. MOVE TO HIGHER GROUND NOW. DO NOT CROSS FAST FLOWING OR RISING WATER IN YOUR VEHICLE OR ON FOOT. TURN AROUND...DON/T DROWN. && THIS WARNING MAY NEED TO BE EXTENDED BEYOND 345 AM HST IF FLASH FLOODING PERSISTS. LAT...LON 2127 15727 2119 15664 2101 15682 2107 15737 $$ KODAMA
738 WGHW70 PHFO 131344 FFSHFO FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE HONOLULU HI 344 AM HST THU JAN 13 2011 HIC009-131354- /O.EXP.PHFO.FF.W.0007.000000T0000Z-110113T1345Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ MOLOKAI IN MAUI COUNTY- 344 AM HST THU JAN 13 2011 ...THE FLASH FLOOD WARNING HAS EXPIRED FOR THE ISLAND OF MOLOKAI IN MAUI COUNTY... WEATHER RADAR AND RAIN GAGES SHOWED THAT THE HEAVY RAINS HAVE ENDED. THUS THE FLASH FLOOD WARNING IS ALLOWED TO EXPIRE. ALTHOUGH THE HEAVY RAINS AND FLOODING HAVE SUBSIDED...RUNOFF IS STILL OCCURRING AND STREAMS WILL REMAIN HIGH FOR SEVERAL HOURS. A FLASH FLOOD WATCH REMAINS IN EFFECT. LAT...LON 2127 15727 2119 15664 2101 15682 2107 15737 $$ BIRCHARD
The office that day
Everything else NWS Honolulu, HI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 12, 2:22 PM HST | Areal Flood Advisory | HFO | Kalawao | 6 hr |
| Jan 12, 3:55 PM HST | Gale Warning | HFO | 12 hr | |
| Jan 12, 3:56 PM HST | Special Marine Warning | HFO | 77 min | |
| Jan 12, 4:59 PM HST | Areal Flood Advisory | HFO | Kauai | 3 hr |
| Jan 12, 5:39 PM HST | Special Marine Warning | HFO | 111 min | |
| Jan 12, 5:51 PM HST | Flash Flood Warning | HFO | Honolulu | 6 hr |
| Jan 12, 6:31 PM HST | Areal Flood Advisory | HFO | Kalawao | 3 hr |
| Jan 12, 9:26 PM HST | Areal Flood Advisory | HFO | Kalawao | 3 hr |
| Jan 12, 11:28 PM HST | Areal Flood Advisory | HFO | Kalawao | 3 hr |
| Jan 12, 11:33 PM HST | Flash Flood Warning | HFO | Honolulu | 9 hr |
| Jan 13, 12:37 AM HST | Special Marine Warning | HFO | 53 min | |
| Jan 13, 12:45 AM HST | Severe Thunderstorm Warning | HFO | Kalawao | 30 min |
| Jan 13, 1:24 AM HST | Special Marine Warning | HFO | 96 min | |
| Jan 13, 1:56 AM HST | Areal Flood Advisory | HFO | Kalawao | 3 hr |
| Jan 13, 2:55 AM HST | Special Marine Warning | HFO | 95 min | |
| Jan 13, 3:10 AM HST | Areal Flood Advisory | HFO | Kalawao | 3 hr |
| Jan 13, 3:42 AM HST | Flash Flood Warning | HFO | Kalawao | 3 hr |
| Jan 13, 4:11 AM HST | Areal Flood Advisory | HFO | Kauai | 3 hr |
| Jan 13, 4:31 AM HST | Special Marine Warning | HFO | 59 min | |
| Jan 13, 5:03 AM HST | Areal Flood Advisory | HFO | Kalawao | 3 hr |
| Jan 13, 5:21 AM HST | Special Marine Warning | HFO | 24 min | |
| Jan 13, 5:39 AM HST | Special Marine Warning | HFO | 36 min | |
| Jan 13, 6:02 AM HST | Flash Flood Warning | HFO | Kalawao | 3 hr |
| Jan 13, 7:42 AM HST | Special Marine Warning | HFO | 63 min | |
| Jan 13, 8:11 AM HST | Special Marine Warning | HFO | 64 min | |
| Jan 13, 8:37 AM HST | Areal Flood Advisory | HFO | Honolulu | 6 hr |
| Jan 13, 8:43 AM HST | Special Marine Warning | HFO | 62 min | |
| Jan 13, 9:18 AM HST | Special Marine Warning | HFO | 65 min | |
| Jan 13, 9:39 AM HST | Small Craft Advisory | HFO | 18 hr | |
| Jan 13, 9:45 AM HST | Special Marine Warning | HFO | 35 min |
Nearby
Flash Flood Warnings in Hawaii, 2011Every flash flood warning in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.