Alert archive / Alabama / Red Flag Warnings in 2009
Red Flag Warning 21, NWS Mobile, AL
NWS Mobile, AL issued this red flag warning at Feb 18, 2009, 2:51 PM CST for 10 counties in Alabama. It took effect at Feb 20, 2009, 11:00 AM CST. 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
- Feb 18, 2009, 2:51 PM CST (20:51 UTC)
- In effect from
- Feb 20, 2009, 11:00 AM CST
- Expired
- Feb 20, 2009, 6:00 PM CST
- 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 20:51 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, 8.9 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
- 11 J/kg
- Mixed-layer CIN
- -38 J/kg
- Mixed-layer LCL
- 526 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 604 m²/s²
- 0-3 km storm-relative helicity
- 698 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS84 KMOB 182051 RFWMOB RED FLAG WARNING NATIONAL WEATHER SERVICE MOBILE AL 251 PM CST WED FEB 18 2009 ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 6 PM CST THURSDAY FOR THE WESTERN FLORIDA PANHANDLE DUE TO A LONG DURATION OF LOW RELATIVE HUMIDITY... ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 6 PM CST FRIDAY FOR THE WESTERN FLORIDA PANHANDLE DUE TO A LONG DURATION OF LOW RELATIVE HUMIDITY... .SHOWERS AND THUNDERSTORMS WILL BECOME BETTER DEVELOPED LATER TODAY AND TONIGHT IN ADVANCE OF COLD FRONT APPROACHING FROM THE WEST. IN THE WAKE OF THE FRONT COOLER DRIER WEATHER CAN BE EXPECTED WITH AFTERNOON RELATIVE HUMIDITIES FALLING BELOW CRITICAL THRESHOLDS OVER THE WESTERN FLORIDA PANHANDLE ON THURSDAY AND FRIDAY. AFTERNOON RELATIVE HUMIDITIES WILL HAVE TO BE CLOSELY MONITORED THROUGH SATURDAY. FLZ001>006-191300- /O.UPG.KMOB.FW.A.0016.090219T1700Z-090220T0000Z/ /O.NEW.KMOB.FW.W.0020.090219T1700Z-090220T0000Z/ /O.NEW.KMOB.FW.W.0021.090220T1700Z-090221T0000Z/ INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA- COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA- 251 PM CST WED FEB 18 2009 ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 6 PM CST THURSDAY... ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 6 PM CST FRIDAY... THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 11 AM TO 6 PM CST THURSDAY. A RED FLAG WARNING HAS ALSO BEEN ISSUED. THIS RED FLAG WARNING IS IN EFFECT FROM 11 AM TO 6 PM CST FRIDAY. A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF LOW RELATIVE HUMIDITY AND WARM TEMPERATURES WILL CREATE RAPID FIRE GROWTH POTENTIAL. $$
4 follow-up statements
000 WWUS84 KMOB 191222 RFWMOB RED FLAG WARNING NATIONAL WEATHER SERVICE MOBILE AL 622 AM CST THU FEB 19 2009 ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 6 PM CST THURSDAY FOR THE WESTERN FLORIDA PANHANDLE DUE TO A LONG DURATION OF LOW RELATIVE HUMIDITY... ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 6 PM CST FRIDAY FOR THE WESTERN FLORIDA PANHANDLE DUE TO A LONG DURATION OF LOW RELATIVE HUMIDITY... .DRY COOL WEATHER WILL SETTLE OVER THE CENTRAL GULF COAST REGION THROUGH SATURDAY MORNING AS A SURFACE RIDGE OF HIGH PRESSURE BUILDS OVER THE LOWER MISSISSIPPI RIVER VALLEY AND CENTRAL GULF STATES. AFTERNOON HUMIDITIES WILL HAVE TO BE CLOSELY MONITORED THROUGH FRIDAY. COOLER DRYER WEATHER WILL BECOME REESTABLISHED OVER THE FORECAST AREA SUNDAY THROUGH TUESDAY IN THE WAKE OF A SURFACE COLD FRONT WHICH MOVES ACROSS THE REGION EARLY SUNDAY. FLZ001>006-200430- /O.CON.KMOB.FW.W.0020.090219T1700Z-090220T0000Z/ /O.CON.KMOB.FW.W.0021.090220T1700Z-090221T0000Z/ INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA- COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA- 622 AM CST THU FEB 19 2009 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 6 PM CST THIS AFTERNOON... ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 6 PM CST FRIDAY... A RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 6 PM CST THIS AFTERNOON. A RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 6 PM CST FRIDAY. DRY COOL WEATHER WILL SETTLE OVER THE CENTRAL GULF COAST REGION THROUGH SATURDAY MORNING AS A SURFACE RIDGE OF HIGH PRESSURE BUILDS OVER THE LOWER MISSISSIPPI RIVER VALLEY AND CENTRAL GULF STATES. AFTERNOON HUMIDITIES WILL HAVE TO BE CLOSELY MONITORED THROUGH FRIDAY. COOLER DRYER WEATHER WILL BECOME REESTABLISHED OVER THE FORECAST AREA SUNDAY THROUGH TUESDAY IN THE WAKE OF A SURFACE COLD FRONT WHICH MOVES ACROSS THE REGION EARLY SUNDAY. A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF LOW RELATIVE HUMIDITY AND WARM TEMPERATURES WILL CREATE RAPID FIRE GROWTH POTENTIAL. $$
000 WWUS84 KMOB 191938 RFWMOB RED FLAG WARNING NATIONAL WEATHER SERVICE MOBILE AL 138 PM CST THU FEB 19 2009 ...A RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CST TODAY FOR THE WESTERN FLORIDA PANHANDLE DUE TO A LONG DURATION OF LOW RELATIVE HUMIDITY... ...A RED FLAG WARNING IS NOW IN EFFECT FROM 11 AM TO 6 PM CST FRIDAY FOR SOUTHWEST ALABAMA AND THE WESTERN FLORIDA PANHANDLE DUE TO A LONG DURATION OF LOW RELATIVE HUMIDITY... .DRY COOL WEATHER WILL SETTLE OVER THE CENTRAL GULF COAST REGION THROUGH SATURDAY MORNING AS A SURFACE RIDGE OF HIGH PRESSURE BUILDS OVER THE LOWER MISSISSIPPI RIVER VALLEY AND CENTRAL GULF STATES. THE COMBINATION OF VERY DRY AIR AND TEMPERATURES IN THE UPPER 50S WILL CREATE VERY LOW RELATIVE HUMIDITY ACROSS THE CENTRAL GULF COAST. ALZ051>064-201145- /O.EXA.KMOB.FW.W.0021.090220T1700Z-090221T0000Z/ CHOCTAW-WASHINGTON-CLARKE-WILCOX-MONROE-CONECUH-BUTLER-CRENSHAW- ESCAMBIA-COVINGTON-UPPER MOBILE-UPPER BALDWIN-LOWER MOBILE- LOWER BALDWIN- 138 PM CST THU FEB 19 2009 ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 6 PM CST FRIDAY... THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 11 AM TO 6 PM CST FRIDAY. A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF LOW RELATIVE HUMIDITY AND WARM TEMPERATURES WILL CREATE RAPID FIRE GROWTH POTENTIAL. $$ FLZ001>006-201145- /O.CON.KMOB.FW.W.0020.000000T0000Z-090220T0000Z/ /O.CON.KMOB.FW.W.0021.090220T1700Z-090221T0000Z/ INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA- COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA- 138 PM CST THU FEB 19 2009 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS AFTERNOON... ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 6 PM CST FRIDAY... A RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS AFTERNOON. A RED FLAG WARNING ALSO REMAINS IN EFFECT FROM 11 AM TO 6 PM CST FRIDAY. A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF LOW RELATIVE HUMIDITY AND WARM TEMPERATURES WILL CREATE RAPID FIRE GROWTH POTENTIAL. $$
000 WWUS84 KMOB 201248 RFWMOB RED FLAG WARNING NATIONAL WEATHER SERVICE MOBILE AL 648 AM CST FRI FEB 20 2009 ...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 6 PM CST THIS AFTERNOON FOR THE WESTERN FLORIDA PANHANDLE AND ALL OF SOUTHWEST ALABAMA DUE TO THE LIKELIHOOD OF LONG DURATIONS OF CRITICALLY LOW RELATIVE HUMIDITY VALUES... .DRY COOL WEATHER WILL SETTLE OVER THE CENTRAL GULF COAST REGION TODAY AS A SURFACE RIDGE OF HIGH PRESSURE BUILDS OVER THE LOWER MISSISSIPPI RIVER VALLEY AND CENTRAL GULF COAST STATES. THE COMBINATION OF VERY DRY AIR AND TEMPERATURES IN THE UPPER 50S WILL CREATE VERY LOW AFTERNOON RELATIVE HUMIDITY VALUES ACROSS THE REGION. ALZ051>064-FLZ001>006-210000- /O.CON.KMOB.FW.W.0021.090220T1700Z-090221T0000Z/ CHOCTAW-WASHINGTON-CLARKE-WILCOX-MONROE-CONECUH-BUTLER-CRENSHAW- ESCAMBIA-COVINGTON-UPPER MOBILE-UPPER BALDWIN-LOWER MOBILE- LOWER BALDWIN-INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA- COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA- 648 AM CST FRI FEB 20 2009 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 6 PM CST THIS AFTERNOON... A RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 6 PM CST THIS AFTERNOON. A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF LOW RELATIVE HUMIDITY AND WARM TEMPERATURES WILL CREATE RAPID FIRE GROWTH POTENTIAL. $$
000 WWUS84 KMOB 202018 RFWMOB RED FLAG WARNING NATIONAL WEATHER SERVICE MOBILE AL 218 PM CST FRI FEB 20 2009 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS AFTERNOON FOR THE WESTERN FLORIDA PANHANDLE AND ALL OF SOUTHWEST ALABAMA DUE TO LONG DURATIONS OF CRITICALLY LOW RELATIVE HUMIDITY VALUES... .DRY COOL WEATHER WILL SETTLE OVER THE CENTRAL GULF COAST REGION TODAY AS A SURFACE RIDGE OF HIGH PRESSURE BUILDS OVER THE LOWER MISSISSIPPI RIVER VALLEY AND CENTRAL GULF COAST STATES. THE COMBINATION OF VERY DRY AIR AND TEMPERATURES IN THE UPPER 50S WILL CREATE VERY LOW AFTERNOON RELATIVE HUMIDITY VALUES ACROSS THE REGION. ALZ051>064-FLZ001>006-210000- /O.CON.KMOB.FW.W.0021.000000T0000Z-090221T0000Z/ CHOCTAW-WASHINGTON-CLARKE-WILCOX-MONROE-CONECUH-BUTLER-CRENSHAW- ESCAMBIA-COVINGTON-UPPER MOBILE-UPPER BALDWIN-LOWER MOBILE- LOWER BALDWIN-INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA- COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA- 218 PM CST FRI FEB 20 2009 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS AFTERNOON... A RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS AFTERNOON. A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF LOW RELATIVE HUMIDITY AND WARM TEMPERATURES WILL CREATE RAPID FIRE GROWTH POTENTIAL. $$
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 18, 2:51 PM CST | Red Flag Warning | MOB | 27 hr | |
| Feb 18, 5:11 PM CST | Tornado Warning | MOB | Choctaw, Clarke | 26 min |
Nearby
Red Flag Warnings in Alabama, 2009Red Flag Warnings in Florida, 2009Every red flag warning in 2009
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.