Alert archive / Alabama / Red Flag Warnings in 2013
Red Flag Warning 13, NWS Mobile, AL
NWS Mobile, AL issued this red flag warning at Oct 23, 2013, 5:30 AM CDT for 10 counties in Alabama. It took effect at Oct 23, 2013, 1:00 PM CDT. It was in force for 4 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 23, 2013, 5:30 AM CDT (10:30 UTC)
- In effect from
- Oct 23, 2013, 1:00 PM CDT
- Expired
- Oct 23, 2013, 5:00 PM CDT
- In force
- 4 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 10:29 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 00:00Z, 10.5 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
- 3 J/kg
- Mixed-layer CIN
- -26 J/kg
- Mixed-layer LCL
- 1282 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- -7 m²/s²
- 0-3 km storm-relative helicity
- 59 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
278 WWUS84 KMOB 231030 RFWMOB URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MOBILE AL 530 AM CDT WED OCT 23 2013 ...RED FLAG WARNING IN EFFECT FROM 1 PM TO 5 PM CDT THIS AFTERNOON FOR SOUTHWEST AND SOUTH CENTRAL ALABAMA DUE TO LOW RELATIVE HUMIDITIES...KBDI VALUES ABOVE 500 AND 20 FOOT WINDS ABOVE 10 MPH... .A MUCH DRIER AIRMASS WILL FILTER INTO THE REGION TODAY IN THE WAKE OF A COLD FRONT. RELATIVE HUMIDITIES BELOW CRITICAL LEVELS...BREEZY CONDITIONS AND KBDI VALUES ABOVE CRITICAL LEVELS SUPPORT A RED FLAG WARNING THIS AFTERNOON FOR SOUTHWEST AND SOUTH CENTRAL ALABAMA. ALZ051>064-232200- /O.UPG.KMOB.FW.A.0010.131023T1800Z-131023T2200Z/ /O.NEW.KMOB.FW.W.0013.131023T1800Z-131023T2200Z/ CHOCTAW-WASHINGTON-CLARKE-WILCOX-MONROE-CONECUH-BUTLER-CRENSHAW- ESCAMBIA-COVINGTON-UPPER MOBILE-UPPER BALDWIN-LOWER MOBILE- LOWER BALDWIN- 530 AM CDT WED OCT 23 2013 ...RED FLAG WARNING IN EFFECT FROM 1 PM TO 5 PM CDT THIS AFTERNOON FOR SOUTHWEST AND SOUTH CENTRAL ALABAMA DUE TO LOW RELATIVE HUMIDITIES...KBDI VALUES ABOVE 500 AND 20 FOOT WINDS ABOVE 10 MPH... THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 1 PM TO 5 PM CDT THIS AFTERNOON. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA...FIRE WEATHER ZONES 051...052...053...054... 055...056...057...058...059...060...061...062...063 AND 064. * RELATIVE HUMIDITY: MINIMUM AROUND 25 PERCENT. * KBDI: ABOVE 500. * IMPACTS: A DRY AIR MASS WILL RESULT IN POTENTIALLY CRITICAL FIRE WEATHER CONDITIONS. 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 CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR. && $$
Nearby
Red Flag Warnings in Alabama, 2013Every red flag warning in 2013
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.