Alert archive / Florida / Red Flag Warnings in 2007

Red Flag Warning 31, NWS Mobile, AL

March 17, 2007Walton County, Florida

NWS Mobile, AL issued this red flag warning at Mar 17, 2007, 6:11 AM CDT for Walton County, Florida. It took effect at Mar 17, 2007, 9:00 AM CDT. It was in force for 10 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 17, 2007, 6:11 AM CDT (11:11 UTC)
In effect from
Mar 17, 2007, 9:00 AM CDT
Expired
Mar 17, 2007, 7:00 PM CDT
In force
10 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 11:09 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, 11.2 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-pSkew-T log-p diagram, Tallahassee Rgnl, FL at 00:00Z on 2007-03-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tallahassee Rgnl, FL at 00:00Z on 2007-03-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -134 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
1326 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
-134 m²/s²
0-3 km storm-relative helicity
-87 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 171111
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
611 AM CDT SAT MAR 17 2007

...A RED FLAG WARNING IS IN EFFECT FROM 9 AM THIS MORNING TO 7 PM
CDT THIS EVENING AND A FIRE WEATHER WATCH IS IN EFFECT SUNDAY
AFTERNOON FOR THE NORTHWEST FLORIDA PANHANDLE COUNTIES OF
ESCAMBIA...SANTA ROSA...OKALOOSA AND COASTAL WALTON COUNTIES DUE
TO LONG DURATION OF LOW RELATIVE HUMIDITY...

.DRY HIGH PRESSURE IN PLACE ACROSS THE REGION WILL SHIFT EASTWARD
THROUGH EARLY NEXT WEEK ALLOWING FOR MOISTURE TO GRADUALLY RETURN TO
THE AREA. AFTERNOON RELATIVE HUMIDITIES WILL DROP BELOW CRITICAL
LEVELS OVER THE NORTHWEST FLORIDA PANHANDLE FOR A RATHER LONG
DURATION TODAY...THEN A MARGINALLY LONG DURATION ON SUNDAY. MOISTURE
RETURNING TO THE AREA WILL KEEP AFTERNOON RELATIVE HUMIDITIES ABOVE
CRITICAL LEVELS FOR MONDAY THROUGH WEDNESDAY.

FLZ001>006-008-171915-
/O.UPG.KMOB.FW.A.0021.070317T1500Z-070318T0000Z/
/O.NEW.KMOB.FW.W.0031.070317T1400Z-070318T0000Z/
/O.NEW.KMOB.FW.A.0022.070318T1700Z-070318T2300Z/
INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA-
COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA-
COASTAL WALTON-
611 AM CDT SAT MAR 17 2007

...RED FLAG WARNING IN EFFECT FROM 9 AM THIS MORNING 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 9 AM THIS MORNING TO 7 PM CDT
THIS EVENING. A FIRE WEATHER WATCH HAS ALSO BEEN ISSUED. THIS
FIRE WEATHER WATCH IS IN EFFECT SUNDAY 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.

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 171909
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
209 PM CDT SAT MAR 17 2007

...A RED FLAG WARNING IS IN EFFECT UNTIL 7 PM CDT THIS EVENING AND
AGAIN SUNDAY FROM NOON UNTIL 6 PM. THE WARNING IS FOR THE NORTHWEST
FLORIDA PANHANDLE COUNTIES OF ESCAMBIA...SANTA ROSA...OKALOOSA AND
COASTAL WALTON COUNTIES DUE TO LONG DURATION OF LOW RELATIVE
HUMIDITY...

.DRY HIGH PRESSURE IN PLACE ACROSS THE REGION WILL SHIFT EASTWARD
THROUGH EARLY NEXT WEEK ALLOWING SURFACE HUMIDITIES TO REMAIN BELOW CRITICAL
LEVELS FOR AN EXTENDED TIME THIS AFTERNOON AND AGAIN SUNDAY
AFTERNOON. MOISTURE SLOWLY RETURNING TO THE AREA THE FIRST OF THE
WEEK SHOULD KEEP AFTERNOON RELATIVE HUMIDITIES ABOVE CRITICAL
LEVELS THROUGH NEXT WEEK. 

FLZ001>006-008-181100-
/O.UPG.KMOB.FW.A.0022.070318T1700Z-070318T2300Z/
/O.NEW.KMOB.FW.W.0032.070318T1700Z-070318T2300Z/
/O.CON.KMOB.FW.W.0031.000000T0000Z-070318T0000Z/
INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA-
COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA-
COASTAL WALTON-
209 PM CDT SAT MAR 17 2007

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...
...RED FLAG WARNING IN EFFECT FROM 12 PM TO 6 PM CDT SUNDAY...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING. A
RED FLAG WARNING IS NOW IN EFFECT FROM NOON UNTIL 6 PM CDT SUNDAY.
THE FIRE WEATHER WATCH FOR SUNDAY WAS REPLACED BY THE RED FLAG
WARNING.

SURFACE HUMIDITY WILL REMAIN BELOW 35 PERCENT UNTIL AROUND SUNSET
TODAY AND WILL DROP BELOW 35 PERCENT AROUND NOON ON SUNDAY. SURFACE
HUMIDITY ON SUNDAY SHOULD RISE ABOVE 35 PERCENT LATE SUNDAY
AFTERNOON. |

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

$$

The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 17, 6:11 AM CDTFire Weather WatchMOBWalton8 hr
Mar 17, 2:09 PM CDTRed Flag WarningMOBWalton28 hr

Nearby

Red Flag Warnings in Florida, 2007Every 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.