Alert archive / Mississippi / Red Flag Warnings in 2011
Red Flag Warning 53, NWS Mobile, AL
NWS Mobile, AL issued this red flag warning at Nov 17, 2011, 5:52 AM CST for 5 counties in Mississippi; Washington County, Alabama. It took effect at Nov 17, 2011, 10:00 AM CST. 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 counties it named.
The facts
- Issued
- Nov 17, 2011, 5:52 AM CST (11:52 UTC)
- In effect from
- Nov 17, 2011, 10:00 AM CST
- Expired
- Nov 17, 2011, 4:00 PM CST
- In force
- 6 hr
- Issued by
- NWS Mobile, AL
Counties Washington County, AL, George County, MS, Greene County, MS, Perry County, MS, Stone County, MS, Wayne County, MS
The radar
The Mobile radar (KMOB), 72 km from the middle of the area, began a volume at 11:49 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
Slidell Radar S, LA (KSIL), launched 00:00Z, 11.9 hours before the alert went out and 140 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
- 115 J/kg
- Mixed-layer CIN
- -25 J/kg
- Mixed-layer LCL
- 1153 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 94 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
As transmitted, in the capitals the NWS used until 2016.
815 WWUS84 KMOB 171152 RFWMOB URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MOBILE AL 552 AM CST THU NOV 17 2011 ...A RED FLAG WARNING IS IN EFFECT FOR INLAND SOUTHEAST MISSISSIPPI...EXTREME SOUTHWEST ALABAMA AND THE WESTERN FLORIDA PANHANDLE TODAY ... .A FRONT WHICH MOVED OVER THE AREA OVERNIGHT WILL BRING A STRONG NORTHERLY FLOW IN THE MIXING LAYER TODAY...ALONG WITH A COOLER...DRIER AIRMASS AND STRONG NORTHERLY WINDS IN THE MIXING LAYER. ALZ051-053>060-171300- /O.CAN.KMOB.FW.A.0052.111117T1600Z-111117T2200Z/ CHOCTAW-CLARKE-WILCOX-MONROE-CONECUH-BUTLER-CRENSHAW-ESCAMBIA- COVINGTON- 552 AM CST THU NOV 17 2011 ...FIRE WEATHER WATCH IS CANCELLED FOR PROLONGED LOW HUMIDITY BELOW 25 PERCENT IN NORTHWEST FLORIDA AND SOUTHWEST ALABAMA IN ADDITION...20 FOOT WIND OF 15 MPH AND LDSI EXCEEDING 75 ARE EXPECTED IN FLORIDA... THE NATIONAL WEATHER SERVICE IN MOBILE HAS CANCELLED THE FIRE WEATHER WATCH. WINDS IN THE CANCELLED AREA ARE NOT EXPECTED TO RISE TO CRITERIA LEVELS...THOUGH RELATIVE HUMIDITY LEVELS ARE EXPECTED TO DROP TO BELOW 25 PERCENT TODAY. $$ ALZ052-061>064-FLZ001>006-172200- /O.UPG.KMOB.FW.A.0052.111117T1600Z-111117T2200Z/ /O.NEW.KMOB.FW.W.0053.111117T1600Z-111117T2200Z/ WASHINGTON-UPPER MOBILE-UPPER BALDWIN-LOWER MOBILE-LOWER BALDWIN- INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA- COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA- 552 AM CST THU NOV 17 2011 ...RED FLAG WARNING IN EFFECT FROM 10 AM THIS MORNING TO 4 PM CST THIS AFTERNOON FOR HIGH WINDS AND LOW RELATIVE HUMIDITY... THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 10 AM THIS MORNING TO 4 PM CST THIS AFTERNOON. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT...BEING UPGRADED TO A WARNING. * AFFECTED AREA...FIRE WEATHER ZONES 051...052...053...054... 055...056...057...058...059...060...061...062...063 AND 064. FIRE WEATHER ZONES 001...002...003...004...005 AND 006. * 20 FOOT WINDS...NORTHWEST RISING TO AROUND 15 MPH BY 10 AM...20 MPH BY NOONTIME. FALLING BELOW CRITERIA CLOSE TO SUNSET. * HUMIDITY...20 TO 25 PERCENT * DISPERSION...90 TO 95 * IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. OUTDOOR BURNING IS NOT RECOMMENDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF LOW RELATIVE HUMIDITY...AND DRY FUELS WILL CREATE RAPID FIRE GROWTH POTENTIAL. && $$ MSZ067-075-076-078-079-172200- /O.NEW.KMOB.FW.W.0053.111117T1600Z-111117T2200Z/ WAYNE-PERRY-GREENE-STONE-GEORGE- 552 AM CST THU NOV 17 2011 ...RED FLAG WARNING IN EFFECT FROM 10 AM THIS MORNING TO 4 PM CST THIS AFTERNOON FOR HIGH WINDS AND LOW HUMIDITY... THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 10 AM THIS MORNING TO 4 PM CST THIS AFTERNOON. * AFFECTED AREA...FIRE WEATHER ZONES 067...075...076...078 AND 079. * 20 FOOT WINDS...NORTHWEST RISING TO AROUND 15 MPH BY 10 AM...20 MPH BY NOONTIME. FALLING BELOW CRITERIA CLOSE TO SUNSET. * HUMIDITY...20 TO 25 PERCENT * IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY 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 CREATE RAPID FIRE GROWTH POTENTIAL. && $$
1 follow-up statement
430 WWUS84 KMOB 171941 RFWMOB URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MOBILE AL 141 PM CST THU NOV 17 2011 ...RED FLAG WARNING IN EFFECT UNTIL 4 PM CST THIS AFTERNOON FOR INLAND SOUTHEAST MISSISSIPPI...EXTREME SOUTHWEST ALABAMA AND THE WESTERN FLORIDA PANHANDLE DUE TO LOW RELATIVE HUMIDITY AND HIGH WINDS AND DISPERSIONS... .BREEZY NORTHERLY WINDS CONTINUE TO USHER MUCH DRIER AIR INTO THE REGION WITH RELATIVE HUMIDITIES DROPPING TO NEAR CRITICAL LEVELS OVER INTERIOR SOUTHEAST MISSISSIPPI...EXTREME SOUTHWEST ALABAMA AND THE NORTHWEST FLORIDA PANHANDLE THIS AFTERNOON. HIGH PRESSURE MOVES EAST OF THE AREA OVER THE WEEKEND ALLOWING FOR A SOUTHEASTERLY FLOW TO DEVELOP AND RETURN MOISTURE TO THE REGION. MOISTURE LEVELS INCREASE FRIDAY AND SATURDAY WITH RELATIVE HUMIDITIES REMAINING ABOVE CRITICAL LEVELS. ALZ052-061>064-FLZ001>006-MSZ067-075-076-078-079-172200- /O.CON.KMOB.FW.W.0053.000000T0000Z-111117T2200Z/ WASHINGTON-UPPER MOBILE-UPPER BALDWIN-LOWER MOBILE-LOWER BALDWIN- INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA- COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA-WAYNE-PERRY- GREENE-STONE-GEORGE- 141 PM CST THU NOV 17 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 4 PM CST THIS AFTERNOON FOR INTERIOR SOUTHEAST MISSISSIPPI...EXTREME SOUTHWESTERN ALABAMA AND THE NORTHWEST FLORIDA PANHANDLE FOR BREEZY NORTHERLY WINDS NEAR 15 MPH AND RELATIVE HUMIDITIES BELOW CRITICAL LEVELS... * AFFECTED AREA...FIRE WEATHER ZONES 052...061...062...063 AND 064. FIRE WEATHER ZONES 001...002...003...004...005 AND 006. FIRE WEATHER ZONES 067...075...076...078 AND 079. * 20 FOOT WINDS...NORTHERLY WINDS NEAR 15 MPH. * HUMIDITY...NEAR 25 PERCENT OVER SOUTHEAST MISSISSIPPI AND EXTREME SOUTHWEST ALABAMA AND 25 TO 30 PERCENT OVER THE NORTHWEST FLORIDA PANHANDLE. * IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY 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 CREATE RAPID FIRE GROWTH POTENTIAL. && $$
Nearby
Red Flag Warnings in Mississippi, 2011Red 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.