Alert archive / Florida / Red Flag Warnings in 2007

Red Flag Warning 19, NWS Mobile, AL

February 23, 2007Walton County, Florida

NWS Mobile, AL issued this red flag warning at Feb 23, 2007, 6:22 AM CST for Walton County, Florida. It took effect at Feb 23, 2007, 10:00 AM CST. 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: Feb 23, 2007, 6:22 AM CST (12:22 UTC)
In effect from: Feb 23, 2007, 10:00 AM CST
Expired: Feb 23, 2007, 6:00 PM CST
In force: 8 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 12:22 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, 0.4 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 4531 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: -90 m²/s²
0-3 km storm-relative helicity: -28 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 231222
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
622 AM CST FRI FEB 23 2007

...RED FLAG WARNING IN EFFECT FROM 10 AM THIS MORNING TO 6 PM CST
THIS AFTERNOON FOR THE NORTHWEST FLORIDA PANHANDLE COUNTIES OF
ESCAMBIA...SANTA ROSA...OKALOOSA AND COASTAL WALTON DUE TO LONG
DURATION OF LOW RELATIVE HUMIDITY...

.DRY HIGH PRESSURE WILL SHIFT ACROSS THE REGION TODAY WHILE A STRONG
LOW PRESSURE SYSTEM APPROACHES FROM THE CENTRAL PLAINS. MILD DAYTIME
TEMPERATURES COMBINED WITH THE DRY AIRMASS WILL RESULT IN A LONG
DURATION OF LOW RELATIVE HUMIDITIES OVER THE NORTHWEST FLORIDA
PANHANDLE TODAY. ABUNDANT GULF MOISTURE FLOWS QUICKLY INTO THE REGION
TONIGHT INTO SATURDAY AS A COLD FRONT APPROACHES FROM THE WEST. THE
FRONT WILL MOVE THROUGH THE REGION SATURDAY NIGHT INTO EARLY SUNDAY
MORNING PRECEDED AND ACCOMPANIED BY WIDESPREAD THUNDERSTORMS. BREEZY
WIND CONDITIONS WILL RESULT IN HIGH DISPERSION VALUES ON SATURDAY.
AFTERNOON RELATIVE HUMIDITIES WILL REMAIN ABOVE CRITICAL LEVELS IN
THE WAKE OF THE FRONT THROUGH MID WEEK.

FLZ001>006-008-232030-
/O.UPG.KMOB.FW.A.0015.070223T1600Z-070224T0000Z/
/O.NEW.KMOB.FW.W.0019.070223T1600Z-070224T0000Z/
INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA-
COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA-
COASTAL WALTON-
622 AM CST FRI FEB 23 2007

...RED FLAG WARNING IN EFFECT FROM 10 AM THIS MORNING TO 6 PM CST
THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN MOBILE HAS UPGRADED THE FIRE WEATHER
WATCH TO A RED FLAG WARNING...WHICH IS IN EFFECT FROM 10 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
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

$$

1 follow-up statement

000 
WWUS84 KMOB 231955
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
155 PM CST FRI FEB 23 2007

...RED FLAG WARNING IN EFFECT UNTIL 6 PM CST THIS EVENING FOR THE
NORTHWEST FLORIDA PANHANDLE COUNTIES OF ESCAMBIA...SANTA
ROSA...OKALOOSA AND COASTAL WALTON DUE TO LONG DURATION OF LOW
RELATIVE HUMIDITY...

.A DRY HIGH PRESSURE WILL SHIFT ACROSS THE REGION TODAY WHILE A
STRONG LOW PRESSURE SYSTEM APPROACHES FROM THE CENTRAL PLAINS.
MILD DAYTIME TEMPERATURES COMBINED WITH THE DRY AIRMASS HAS RESULTED
IN A LONG DURATION OF LOW RELATIVE HUMIDITIES OVER THE NORTHWEST
FLORIDA PANHANDLE TODAY. ABUNDANT GULF MOISTURE FLOWS QUICKLY INTO
THE REGION TONIGHT INTO SATURDAY AS A COLD FRONT APPROACHES FROM THE
WEST. THE FRONT WILL MOVE THROUGH THE REGION SATURDAY NIGHT INTO
EARLY SUNDAY MORNING PRECEDED AND ACCOMPANIED BY WIDESPREAD
THUNDERSTORMS. BREEZY WIND CONDITIONS WILL RESULT IN HIGH DISPERSION
VALUES ON SATURDAY. AFTERNOON RELATIVE HUMIDITIES WILL REMAIN ABOVE
CRITICAL LEVELS IN THE WAKE OF THE FRONT THROUGH MID WEEK.

FLZ001>006-008-240000-
/O.CON.KMOB.FW.W.0019.000000T0000Z-070224T0000Z/
INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA-
COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA-
COASTAL WALTON-
155 PM CST FRI FEB 23 2007

...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. A COMBINATION OF LOW RELATIVE
HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH
POTENTIAL.

$$

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.