Alert archive / Florida / Red Flag Warnings in 2008

Red Flag Warning 40, NWS Mobile, AL

April 19, 2008Walton County, Florida

NWS Mobile, AL issued this red flag warning at Apr 19, 2008, 5:16 AM CDT for Walton County, Florida. It took effect at Apr 19, 2008, 12:00 PM CDT. It was in force for 7 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: Apr 19, 2008, 5:16 AM CDT (10:16 UTC)
In effect from: Apr 19, 2008, 12:00 PM CDT
Expired: Apr 19, 2008, 7:00 PM CDT
In force: 7 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 10:18 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 00:00Z, 10.3 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: 1588 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 28 m²/s²
0-3 km storm-relative helicity: 62 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 191016
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
516 AM CDT SAT APR 19 2008

...A RED FLAG WARNING IS IN EFFECT FROM NOON TODAY TO 7 PM CDT THIS
EVENING...AND A FIRE WEATHER WATCH IS IN EFFECT SUNDAY AFTERNOON FOR
ESCAMBIA...SANTA ROSA...OKALOOSA...AND COASTAL WALTON COUNTIES IN
NORTHWEST FLORIDA DUE TO LONG DURATION OF LOW RELATIVE HUMIDITY.

.A COLD FRONT MOVED THROUGH THE REGION OVERNIGHT ACCOMPANIED BY DRY
AIR BEHIND IT. THIS WILL CONTINUE FOR THE WEEKEND WHILE DAYTIME
TEMPERATURE WARMS TO SEVERAL DEGREES ABOVE SEASONABLE LEVELS.
AFTERNOON RELATIVE HUMIDITY WILL DROP BELOW CRITICAL OVER THE
NORTHWEST FLORIDA PANHANDLE ON SATURDAY AND AGAIN ON SUNDAY.

FLZ002-004-006-008-200230-
/O.UPG.KMOB.FW.A.0035.080419T1600Z-080419T2300Z/
/O.NEW.KMOB.FW.W.0040.080419T1700Z-080420T0000Z/
/O.EXA.KMOB.FW.A.0034.080420T1700Z-080420T2300Z/
COASTAL ESCAMBIA-COASTAL SANTA ROSA-COASTAL OKALOOSA-
COASTAL WALTON-
516 AM CDT SAT APR 19 2008

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 7 PM CDT THIS
EVENING...
...FIRE WEATHER WATCH IN EFFECT SUNDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A RED FLAG WARNING
WHICH IS IN EFFECT FROM NOON TODAY TO 7 PM CDT THIS EVENING. A FIRE
WEATHER WATCH HAS ALSO BEEN ISSUED. THIS FIRE WEATHER WATCH IS IN
EFFECT SUNDAY AFTERNOON. 

RELATIVE HUMIDITY WILL DROP BELOW CRITICAL LEVELS FOR SLIGHTLY LONGER
THAN FOUR HOURS OVER THE NORTHWEST FLORIDA PANHANDLE TODAY AND SUNDAY.

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

A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE
FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE RED FLAG
WARNINGS.

$$

FLZ001-003-005-200230-
/O.UPG.KMOB.FW.A.0035.080419T1600Z-080419T2300Z/
/O.NEW.KMOB.FW.W.0040.080419T1700Z-080420T0000Z/
/O.CON.KMOB.FW.A.0034.080420T1700Z-080420T2300Z/
INLAND ESCAMBIA-INLAND SANTA ROSA-INLAND OKALOOSA-
516 AM CDT SAT APR 19 2008

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 7 PM CDT THIS
EVENING...
...FIRE WEATHER WATCH REMAINS IN EFFECT SUNDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 7 PM CDT THIS
EVENING. A FIRE WEATHER WATCH REMAINS IN EFFECT SUNDAY AFTERNOON.

RELATIVE HUMIDITY WILL DROP BELOW CRITICAL LEVELS FOR SLIGHTLY
LONGER THAN FOUR HOURS OVER THE NORTHWEST FLORIDA PANHANDLE ON
SATURDAY AND AGAIN ON SUNDAY.

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

A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE
FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE RED FLAG
WARNINGS.

$$

1 follow-up statement

000 
WWUS84 KMOB 191859
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
159 PM CDT SAT APR 19 2008

...A RED FLAG WARNING IS IN EFFECT FROM NOON TODAY TO 7 PM CDT
THIS EVENING...AND A FIRE WEATHER WATCH IS IN EFFECT SUNDAY
AFTERNOON FOR ESCAMBIA...SANTA ROSA...OKALOOSA...AND COASTAL
WALTON COUNTIES IN NORTHWEST FLORIDA DUE TO LONG DURATION OF LOW
RELATIVE HUMIDITY.

.A COLD FRONT MOVED THROUGH THE REGION OVERNIGHT BRINGING DRY AIR TO
THE AREA. THIS WILL CONTINUE FOR THE WEEKEND WHILE DAYTIME
TEMPERATURE WARMS TO SEVERAL DEGREES ABOVE SEASONABLE LEVELS.
AFTERNOON RELATIVE HUMIDITY WILL DROP BELOW CRITICAL OVER THE
NORTHWEST FLORIDA PANHANDLE ON THIS AFTERNOON AND AGAIN ON SUNDAY.

FLZ001>006-008-201100-
/O.CON.KMOB.FW.W.0040.000000T0000Z-080420T0000Z/
/O.CON.KMOB.FW.A.0034.080420T1700Z-080420T2300Z/
INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA-
COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA-
COASTAL WALTON-
159 PM CDT SAT APR 19 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...
...FIRE WEATHER WATCH REMAINS IN EFFECT SUNDAY AFTERNOON...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING.
A FIRE WEATHER WATCH REMAINS IN EFFECT SUNDAY AFTERNOON. 

RELATIVE HUMIDITY WILL DROP BELOW CRITICAL LEVELS FOR SLIGHTLY
LONGER THAN FOUR HOURS OVER THE NORTHWEST FLORIDA PANHANDLE TODAY
AND SUNDAY.

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

A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE
RED FLAG WARNINGS.

$$

Nearby

Red Flag Warnings in Florida, 2008 Every red flag warning in 2008

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.