Alert archive / Florida / Red Flag Warnings in 2007

Red Flag Warning 24, NWS Mobile, AL

March 1, 2007Walton County, Florida

NWS Mobile, AL issued this red flag warning at Mar 1, 2007, 2:35 PM CST for Walton County, Florida. It took effect at Mar 2, 2007, 10:00 AM CST. It was in force for 9 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: Mar 1, 2007, 2:35 PM CST (20:35 UTC)
In effect from: Mar 2, 2007, 10:00 AM CST
Expired: Mar 2, 2007, 7:00 PM CST
In force: 9 hr
Issued by: NWS Mobile, AL

County Walton County, FL

The radar

The Eglin Afb radar (KEVX), 25 km from the middle of the area, began a volume at 20:36 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

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 8.6 hours before the alert went out and 181 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: 15 J/kg
Mixed-layer CIN: -377 J/kg
Mixed-layer LCL: 891 m above ground
0-6 km bulk shear: 70 kt
0-1 km storm-relative helicity: 322 m²/s²
0-3 km storm-relative helicity: 447 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.2

Open this sounding in Storm Lab

The text

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

000 
WWUS84 KMOB 012035
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
235 PM CST THU MAR 1 2007

...A RED FLAG WARNING IS IN EFFECT FROM LATE FRIDAY MORNING THROUGH
FRIDAY AFTERNOON FOR THE WESTERN FLORIDA PANHANDLE DUE TO CRITICALLY
LOW RELATIVE HUMIDITY VALUES...

.A DRY AIRMASS WILL MOVE SOUTHWARD ACROSS THE CENTRAL GULF COAST
REGION DURING THE DAY ON FRIDAY RESULTING IN AFTERNOON RELATIVE
HUMIDITIES FALLING BELOW CRITICAL THRESHOLDS FOR MANY LOCATIONS
IN NORTHWEST FLORIDA. DRY CONDITIONS WILL CONTINUE THROUGH THE
WEEKEND AND INTO EARLY NEXT WEEK AS ANOTHER SURGE OF COOLER/DRIER
AIR MOVES ACROSS THE REGION LATE SATURDAY AFTERNOON.

FLZ001>006-008-020445-
/O.UPG.KMOB.FW.A.0017.070302T1700Z-070303T0000Z/
/O.NEW.KMOB.FW.W.0024.070302T1700Z-070302T2300Z/
INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA-
COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA-
COASTAL WALTON-
235 PM CST THU MAR 1 2007

...RED FLAG WARNING IN EFFECT FROM 11 AM TO 5 PM CST FRIDAY...

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 11 AM TO 5 PM CST FRIDAY. THE
FIRE WEATHER WATCH IS NO LONGER IN EFFECT. 

A DRY AIRMASS WILL MOVE SOUTHWARD ACROSS THE CENTRAL GULF COAST
REGION DURING THE DAY ON FRIDAY RESULTING IN AFTERNOON RELATIVE
HUMIDITIES FALLING BELOW CRITICAL THRESHOLDS FOR MANY LOCATIONS IN
NORTHWEST FLORIDA. DRY CONDITIONS WILL CONTINUE THROUGH THE WEEKEND
AND INTO EARLY NEXT WEEK AS ANOTHER SURGE OF COOLER/DRIER AIR MOVES
ACROSS THE REGION LATE SATURDAY AFTERNOON.

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.

$$

2 follow-up statements

000 
WWUS84 KMOB 021138
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
538 AM CST FRI MAR 2 2007

...A RED FLAG WARNING IS IN EFFECT TODAY AND AGAIN SATURDAY FOR THE
WEST FLORIDA PANHANDLE DUE TO A SUSTAINED PERIOD LOW SURFACE HUMIDITY...

.A DRY AIRMASS WILL SETTLE ACROSS THE CENTRAL GULF COAST REGION
DURING THE DAY TODAY...RESULTING IN AFTERNOON RELATIVE HUMIDITIES
FALLING BELOW CRITICAL THRESHOLDS FOR MANY LOCATIONS IN NORTHWEST
FLORIDA...BOTH TODAY AND SATURDAY AFTERNOON. 

FLZ001>006-008-022000-
/O.NEW.KMOB.FW.W.0025.070303T1700Z-070303T2300Z/
/O.EXT.KMOB.FW.W.0024.070302T1600Z-070303T0100Z/
INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA-
COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA-
COASTAL WALTON-
538 AM CST FRI MAR 2 2007

...RED FLAG WARNING NOW IN EFFECT FROM 10 AM THIS MORNING TO 7 PM
CST THIS EVENING...
...RED FLAG WARNING IN EFFECT FROM 11 AM TO 5 PM CST SATURDAY...

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 10 AM THIS MORNING TO 7 PM CST
THIS EVENING AND AGAIN FOR SATURDAY AFTERNOON.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE
EITHER OCCURRING NOW...OR WILL SHORTLY. LOW SURFACE RELATIVE
HUMIDITY WILL CREATE RAPID FIRE GROWTH POTENTIAL.

$$

000 
WWUS84 KMOB 022014
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
214 PM CST FRI MAR 2 2007

...A RED FLAG WARNING REMAINS IN EFFECT TODAY AND AGAIN SATURDAY FOR
THE WEST FLORIDA PANHANDLE DUE TO A SUSTAINED PERIOD OF CRITICALLY
LOW DAYTIME HUMIDITY...

.A DRY AIRMASS SETTLES ACROSS THE CENTRAL GULF COAST REGION...RESULTING
IN AFTERNOON RELATIVE HUMIDITIES SETTLING BELOW CRITICAL THRESHOLDS
FOR MANY LOCATIONS IN NORTHWEST FLORIDA...BOTH TODAY AND SATURDAY
AFTERNOON.

FLZ001>006-008-031100-
/O.EXT.KMOB.FW.W.0025.070303T1700Z-070304T0000Z/
/O.CON.KMOB.FW.W.0024.000000T0000Z-070303T0100Z/
INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA-
COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA-
COASTAL WALTON-
214 PM CST FRI MAR 2 2007

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CST THIS
EVENING FOR A SUSTAINED PERIOD OF LOW RELATIVE HUMIDITY OVER THE
WEST FLORIDA PANHANDLE...
...RED FLAG WARNING NOW IN EFFECT FROM 11 AM TO 6 PM CST
SATURDAY FOR A SUSTAINED PERIOD OF LOW RELATIVE HUMIDITY OVER
THE WEST FLORIDA PANHANDLE...

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT THROUGH 7 PM CST THIS EVENING AND AGAIN
FOR SATURDAY AFTERNOON.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE
FORECAST TO OCCUR. LOW DAYTIME RELATIVE HUMIDITIES 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
Mar 1, 4:37 AM CST	Fire Weather Watch	MOB	Walton	10 hr
Mar 1, 8:39 AM CST	Special Marine Warning	MOB		36 min
Mar 1, 9:00 AM CST	Tornado Warning	MOB	Escambia, Santa Rosa	30 min
Mar 1, 9:15 AM CST	Special Marine Warning	MOB		30 min
Mar 1, 9:57 AM CST	Tornado Warning	MOB	Escambia	24 min
Mar 1, 10:03 AM CST	Special Marine Warning	MOB		27 min
Mar 1, 10:15 AM CST	Severe Thunderstorm Warning	MOB	Escambia, Santa Rosa	45 min
Mar 1, 10:46 AM CST	Tornado Warning	MOB	Okaloosa, Santa Rosa	44 min
Mar 1, 11:14 AM CST	Tornado Warning	MOB	Okaloosa, Santa Rosa	46 min
Mar 1, 12:01 PM CST	Tornado Warning	MOB	Okaloosa	34 min
Mar 1, 1:55 PM CST	Wind Advisory	MOB		4 hr
Mar 1, 3:41 PM CST	Special Marine Warning	MOB		49 min
Mar 1, 5:32 PM CST	Special Marine Warning	MOB		58 min

Nearby

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.