Alert archive / Alabama / Red Flag Warnings in 2007

Red Flag Warning 59, NWS Mobile, AL

May 22, 200710 counties in Alabama

NWS Mobile, AL issued this red flag warning at May 22, 2007, 4:25 AM CDT for 10 counties in Alabama. It took effect at May 22, 2007, 11:00 AM CDT. It was in force for 8 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: May 22, 2007, 4:25 AM CDT (09:25 UTC)
In effect from: May 22, 2007, 11:00 AM CDT
Expired: May 22, 2007, 7:00 PM CDT
In force: 8 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 09:26 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, 9.4 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 3477 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 6 m²/s²
0-3 km storm-relative helicity: 10 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WWUS84 KMOB 220925
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
425 AM CDT TUE MAY 22 2007

...A RED FLAG WARNING IS NOW IN EFFECT FROM 11 AM CDT THIS MORNING UNTIL
7 PM CDT THIS EVENING FOR INLAND SECTIONS OF THE WESTERN FLORIDA
PANHANDLE DUE TO LONG DURATIONS OF LOW RELATIVE HUMIDITY BELOW 35 PERCENT...

...A RED FLAG WARNING IS NOW IN EFFECT FROM 11 AM CDT THIS MORNING
UNTIL 7 PM CDT THIS EVENING FOR INLAND SOUTHWEST AND SOUTH CENTRAL
ALABAMA DUE TO RELATIVE HUMIDITY VALUES BELOW 30 PERCENT COINCIDENT
WITH SUSTAINED 20 FOOT WINDS EQUAL TO OR GREATER THAN 10 MPH AND A
FIRE ALERT FROM THE STATE OF ALABAMA DIVISION OF FORESTRY...

.DRY CONDITIONS WILL REMAIN ACROSS THE REGION TODAY AND STRONG MIXING
WILL ALLOW RELATIVE HUMIDITY VALUES TO FALL BELOW CRITICAL VALUES
ACROSS ALL AREAS NORTH OF THE COASTAL ZONES. THE LOW RELATIVE
HUMIDITIES COMBINED WITH SUSTAINED 20 FOOT WINDS OF 10 MPH OR MORE
WILL CREATE RED FLAG CONDITIONS LATER THIS MORNING THROUGH THE
AFTERNOON.

ALZ051>062-FLZ001-003-005-222015-
/O.NEW.KMOB.FW.W.0059.070522T1600Z-070523T0000Z/
CHOCTAW-WASHINGTON-CLARKE-WILCOX-MONROE-CONECUH-BUTLER-CRENSHAW-
ESCAMBIA-COVINGTON-UPPER MOBILE-UPPER BALDWIN-INLAND ESCAMBIA-
INLAND SANTA ROSA-INLAND OKALOOSA-
425 AM CDT TUE MAY 22 2007

...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 7 PM CDT
THIS EVENING...

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 7 PM CDT
THIS EVENING. 

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE
EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG
WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE
EXPLOSIVE FIRE GROWTH POTENTIAL.

$$

1 follow-up statement

000 
WWUS84 KMOB 221653
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1153 AM CDT TUE MAY 22 2007


...THE RED FLAG WARNING HAS BEEN CANCELLED FOR INLAND SOUTHWESTERN AND
SOUTH CENTRAL ALABAMA...

...A RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING
FOR INLAND SECTIONS OF THE EXTREME WESTERN FLORIDA PANHANDLE DUE TO
LONG DURATIONS OF LOW RELATIVE HUMIDITY BELOW 35 PERCENT...

.DRY CONDITIONS WILL REMAIN ACROSS THE REGION TODAY AND STRONG
MIXING WILL ALLOW RELATIVE HUMIDITY VALUES TO FALL BELOW CRITICAL
VALUES ACROSS INLAND SECTIONS OF THE EXTREME WESTERN FLORIDA
PANHANDLE. MINIMUM AFTERNOON RELATIVE HUMIDITY VALUES BELOW 35
PERCENT FOR MORE THAN FOUR HOURS WILL CREATE RED FLAG CONDITIONS
LATER THIS MORNING THROUGH THE AFTERNOON.

ALZ051>062-221800-
/O.CAN.KMOB.FW.W.0059.000000T0000Z-070523T0000Z/
CHOCTAW-WASHINGTON-CLARKE-WILCOX-MONROE-CONECUH-BUTLER-CRENSHAW-
ESCAMBIA-COVINGTON-UPPER MOBILE-UPPER BALDWIN-
1153 AM CDT TUE MAY 22 2007

...RED FLAG WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MOBILE HAS CANCELLED THE RED FLAG
WARNING. 

DURING THE MORNING HOURS...MOISTURE VALUES AT THE SURFACE HAVE RISEN
SUFFICIENTLY HIGH ENOUGH TO PRECLUDE THE NEED FOR A RED FLAG WARNING
FOR RELATIVE HUMIDITY VALUES LESS THAN 30 PERCENT. WINDS WILL REMAIN
OUT OF THE SOUTHEAST BETWEEN 5 AND 15 MPH FOR THE REMAINDER OF THE
AFTERNOON.

$$

FLZ001-003-005-230000-
/O.CON.KMOB.FW.W.0059.000000T0000Z-070523T0000Z/
INLAND ESCAMBIA-INLAND SANTA ROSA-INLAND OKALOOSA-
1153 AM CDT TUE MAY 22 2007

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
RELATIVELY STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM
TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

$$

Nearby

Red Flag Warnings in Alabama, 2007 Red Flag Warnings in Florida, 2007 Every red flag warning in 2007

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.