Alert archive / Alabama / Red Flag Warnings in 2011
Red Flag Warning 49, NWS Mobile, AL
NWS Mobile, AL issued this red flag warning at Oct 28, 2011, 2:15 PM CDT for 10 counties in Alabama. It took effect at Oct 29, 2011, 11:00 AM CDT. It was in force for 7 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Oct 28, 2011, 2:15 PM CDT (19:15 UTC)
- In effect from
- Oct 29, 2011, 11:00 AM CDT
- Expired
- Oct 29, 2011, 6:00 PM CDT
- In force
- 7 hr
- Issued by
- NWS Mobile, AL
Counties Butler County, AL, Choctaw County, AL, Clarke County, AL, Conecuh County, AL, Covington County, AL, Crenshaw County, AL, Escambia County, AL, Monroe County, AL, Washington County, AL, Wilcox County, AL
The radar
The Mobile radar (KMOB), 138 km from the middle of the area, began a volume at 19:14 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
Birmingham, AL (KBMX), launched 12:00Z, 7.3 hours before the alert went out and 182 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 706 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 191 m²/s²
- 0-3 km storm-relative helicity
- 151 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
566 WWUS84 KMOB 281915 RFWMOB URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MOBILE AL 215 PM CDT FRI OCT 28 2011 ...RED FLAG WARNING IN EFFECT SATURDAY AFTERNOON FOR A LARGE PART OF SOUTH AND SOUTHWEST ALABAMA AND NORTHWEST FLORIDA PANHANDLE DUE TO LOW HUMIDITY AND 20 FOOT WIND ABOVE 10 MPH...WITH ELEVATED DISPERSION AND KBDI... .VERY DRY AIR WILL ARRIVE BY SATURDAY BEHIND A COLD FRONT. LOWEST HUMIDITY 20 TO 30 PERCENT...20 FOOT WINDS 12 TO 18 MPH AND GUSTY. KBDI ABOVE 500 AND DISPERSION INDEX EXCEEDING 75 SATURDAY AFTERNOON. ALZ051>060-291115- /O.UPG.KMOB.FW.A.0045.111029T1800Z-111029T2200Z/ /O.NEW.KMOB.FW.W.0049.111029T1700Z-111029T2300Z/ CHOCTAW-WASHINGTON-CLARKE-WILCOX-MONROE-CONECUH-BUTLER-CRENSHAW- ESCAMBIA-COVINGTON- 215 PM CDT FRI OCT 28 2011 ...RED FLAG WARNING IN EFFECT FROM NOON TO 6 PM CDT SATURDAY FOR MOST OF SOUTHWEST ALABAMA DUE TO LOW HUMIDITY AND 20 FOOT WINDS EXCEEDING 10 MPH... THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A RED FLAG WARNING WHICH IS IN EFFECT FROM NOON TO 6 PM CDT SATURDAY. THE FIRE WEATHER WATCH HAS BEEN REPLACED BY THIS RED FLAG WARNING. * 20 FOOT WIND...NORTH 12 TO 15 MPH AND GUSTY * HUMIDITY...20 TO 25 PERCENT * KBDI...EXCEEDING 500 OVER THE WATCH AREA * IMPACTS...ANY FIRES THAT DEVELOP MAY SPREAD RAPIDLY. OUTDOOR BURNING IS NOT RECOMMENDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF LOW RELATIVE HUMIDITY...AND DRY FUELS WILL BRING RAPID FIRE GROWTH POTENTIAL. && $$ FLZ001>006-291115- /O.UPG.KMOB.FW.A.0045.111029T1700Z-111029T2200Z/ /O.NEW.KMOB.FW.W.0049.111029T1700Z-111029T2300Z/ INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA- COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA- 215 PM CDT FRI OCT 28 2011 ...RED FLAG WARNING IN EFFECT FROM NOON TO 6 PM CDT SATURDAY FOR THE NORTHWEST FLORIDA PANHANDLE DUE TO LOW HUMIDITY AND 20 FOOT WINDS EXCEEDING 10 MPH... THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A RED FLAG WARNING WHICH IS IN EFFECT FROM NOON TO 6 PM CDT SATURDAY. THE FIRE WEATHER WATCH HAS BEEN REPLACED BY THIS RED FLAG WARNING. * AFFECTED AREA...FIRE WEATHER ZONES 001...002...003...004... 005 AND 006. * WIND...NORTH 13 TO 18 MPH AND GUSTY * HUMIDITY...20 TO 25 PERCENT * DISPERSION INDEX...EXCEEDING 75 OVER THE WATCH AREA * IMPACTS...ANY FIRES THAT DEVELOP MAY SPREAD RAPIDLY. OUTDOOR BURNING IS NOT RECOMMENDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF LOW RELATIVE HUMIDITY...WIND...AND DRY FUELS WILL BRING RAPID FIRE GROWTH POTENTIAL. && $$
1 follow-up statement
641 WWUS84 KMOB 291117 RFWMOB URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MOBILE AL 617 AM CDT SAT OCT 29 2011 ...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 6 PM CDT THIS EVENING FOR THE WESTERN FLORIDA PANHANDLE DUE TO LOW HUMIDITY...HIGH DISPERSION AND MODERATE WINDS... ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 6 PM CDT THIS EVENING FOR A LARGE PART OF SOUTH CENTRAL AND SOUTHWEST ALABAMA DUE TO LOW HUMIDITY...MODERATE WINDS AND ELEVATED KBDI VALUES... .VERY DRY AIR WILL FLOW INTO THE AREA TODAY IN THE WAKE OF A STRONG COLD FRONT. LOWEST HUMIDITY LESS THAN 30 PERCENT...20 FOOT WINDS 12 TO 18 MPH AND GUSTY...ALONG WITH KBDI VALUES ABOVE 500 AND DISPERSION INDEX VALUES IN EXCESS OF 75 ARE EXPECTED TODAY. FLZ001>006-292300- /O.EXT.KMOB.FW.W.0049.111029T1600Z-111029T2300Z/ INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA- COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA- 617 AM CDT SAT OCT 29 2011 ...RED FLAG WARNING NOW IN EFFECT FROM 11 AM THIS MORNING TO 6 PM CDT THIS EVENING FOR THE WESTERN FLORIDA PANHANDLE DUE TO LOW HUMIDITY...HIGH DISPERSION AND MODERATE WINDS... * AFFECTED AREA...FIRE WEATHER ZONES 001...002...003...004... 005 AND 006. * WIND...NORTH 13 TO 18 MPH AND GUSTY * HUMIDITY...20 TO 25 PERCENT * DISPERSION INDEX...EXCEEDING 75 OVER THE WATCH AREA * IMPACTS...ANY FIRES THAT DEVELOP MAY SPREAD RAPIDLY. OUTDOOR BURNING IS NOT RECOMMENDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF LOW RELATIVE HUMIDITY...WIND...AND DRY FUELS WILL BRING RAPID FIRE GROWTH POTENTIAL. && $$ ALZ051>060-292300- /O.CON.KMOB.FW.W.0049.111029T1700Z-111029T2300Z/ CHOCTAW-WASHINGTON-CLARKE-WILCOX-MONROE-CONECUH-BUTLER-CRENSHAW- ESCAMBIA-COVINGTON- 617 AM CDT SAT OCT 29 2011 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 6 PM CDT THIS EVENING FOR A LARGE PART OF SOUTH CENTRAL AND SOUTHWEST ALABAMA DUE TO LOW HUMIDITY...MODERATE WINDS AND ELEVATED KBDI VALUES... * 20 FOOT WIND...NORTH 12 TO 15 MPH AND GUSTY * HUMIDITY...20 TO 25 PERCENT * KBDI...EXCEEDING 500 OVER THE WATCH AREA * IMPACTS...ANY FIRES THAT DEVELOP MAY SPREAD RAPIDLY. OUTDOOR BURNING IS NOT RECOMMENDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF LOW RELATIVE HUMIDITY...AND DRY FUELS WILL BRING RAPID FIRE GROWTH POTENTIAL. && $$
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 28, 3:46 AM CDT | Small Craft Advisory | MOB | 55 hr |
Nearby
Red Flag Warnings in Alabama, 2011Red Flag Warnings in Florida, 2011Every red flag 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.