Alert archive / Florida / Red Flag Warnings in 2007

Red Flag Warning 48, NWS Mobile, AL

April 30, 2007Walton County, Florida

NWS Mobile, AL issued this red flag warning at Apr 30, 2007, 5:01 AM CDT for Walton County, Florida. It took effect at Apr 30, 2007, 12:00 PM CDT. It was in force for 6 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 30, 2007, 5:01 AM CDT (10:01 UTC)
In effect from
Apr 30, 2007, 12:00 PM CDT
Expired
Apr 30, 2007, 6:00 PM CDT
In force
6 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 10:00 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, 10.0 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 2007-04-30Temperature 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 2007-04-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 square meters per square second.19395878Sfc1 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
2865 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
32 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 301001
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
501 AM CDT MON APR 30 2007

...A RED FLAG WARNING IS NOW IN EFFECT FROM NOON TODAY TO 6 PM CDT
THIS AFTERNOON FOR THE WESTERN FLORIDA PANHANDLE DUE TO A LONG DURATION OF
LOW DAYTIME RELATIVE HUMIDITY VALUES BELOW 35 PERCENT...

...A FIRE WEATHER WATCH IS IN EFFECT TUESDAY AFTERNOON FOR THE INLAND
PORTIONS OF THE WESTERN FLORIDA PANHANDLE DUE TO THE POTENTIAL OF
A LONG DURATION OF LOW DAYTIME RELATIVE HUMIDITY VALUES OF BELOW 35
PERCENT...

.DISCUSSION...HIGH PRESSURE MAINTAINS A DRY WEATHER PATTERN FOR THE
NEXT COUPLE OF DAYS. 

FLZ001-003-005-301915-
/O.UPG.KMOB.FW.A.0038.070430T1700Z-070501T0000Z/
/O.NEW.KMOB.FW.W.0048.070430T1700Z-070430T2300Z/
/O.NEW.KMOB.FW.A.0039.070501T1800Z-070501T2200Z/
INLAND ESCAMBIA-INLAND SANTA ROSA-INLAND OKALOOSA-
501 AM CDT MON APR 30 2007

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 6 PM CDT THIS
AFTERNOON FOR THE WESTERN FLORIDA PANHANDLE DUE TO A LONG DURATION OF
LOW DAYTIME RELATIVE HUMIDITY VALUES BELOW 35 PERCENT...
...FIRE WEATHER WATCH IN EFFECT TUESDAY AFTERNOON FOR THE INLAND
PORTIONS OF THE WESTERN FLORIDA PANHANDLE DUE TO THE POTENTIAL OF
LONG DURATION AFTERNOON RELATIVE HUMIDITY VALUES OF BELOW 35
PERCENT...

LOWEST DAYTIME HUMIDITIES COULD LOWER TO 27 TO 32 PERCENT NORTH OF
INTERSTATE 10 AND FROM 30 TO 35 PERCENT JUST SOUTH OF THE INTERSTATE
TODAY. LOWEST DAYTIME HUMIDITIES TUESDAY COULD BE AROUND 32 PERCENT. 

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE FORECAST TO OCCUR. THE LOW RELATIVE HUMIDITY AND WARM
TEMPERATURES WILL SUGGEST AN INCREASE IN FIRE GROWTH POTENTIAL.

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

$$

FLZ002-004-006-008-301915-
/O.UPG.KMOB.FW.A.0038.070430T1700Z-070501T0000Z/
/O.NEW.KMOB.FW.W.0048.070430T1700Z-070430T2300Z/
COASTAL ESCAMBIA-COASTAL SANTA ROSA-COASTAL OKALOOSA-
COASTAL WALTON-
501 AM CDT MON APR 30 2007

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 6 PM CDT THIS
AFTERNOON FOR THE WESTERN FLORIDA PANHANDLE DUE TO A LONG DURATION OF
LOW DAYTIME RELATIVE HUMIDITY VALUES BELOW 35 PERCENT...

LOWEST DAYTIME HUMIDITIES COULD LOWER TO 30 TO 35 PERCENT JUST SOUTH
OF THE INTERSTATE TODAY.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE FORECAST TO OCCUR. THE LOW RELATIVE HUMIDITY AND WARM
TEMPERATURES WILL SUGGEST AN INCREASE IN FIRE GROWTH POTENTIAL.


$$
1 follow-up statement
000 
WWUS84 KMOB 302008
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
308 PM CDT MON APR 30 2007

...A RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CDT THIS AFTERNOON
FOR THE WESTERN FLORIDA PANHANDLE DUE TO A LONG DURATION OF LOW RELATIVE
HUMIDITY VALUES BELOW 35 PERCENT...

...A FIRE WEATHER WATCH IS IN EFFECT TUESDAY AFTERNOON FOR THE INLAND
PORTIONS OF THE WESTERN FLORIDA PANHANDLE DUE TO THE POTENTIAL OF A
LONG DURATION OF LOW DAYTIME RELATIVE HUMIDITY VALUES OF BELOW 35
PERCENT...

.DISCUSSION...HIGH PRESSURE WILL MAINTAIN A DRY WEATHER PATTERN OVER
THE REGION FOR THE NEXT COUPLE OF DAYS. DAYTIME DISPERSIONS WILL BE
AVERAGE...BECOMING POOR AT NIGHT.

FLZ001-003-005-010415-
/O.CON.KMOB.FW.W.0048.000000T0000Z-070430T2300Z/
/O.CON.KMOB.FW.A.0039.070501T1800Z-070501T2200Z/
INLAND ESCAMBIA-INLAND SANTA ROSA-INLAND OKALOOSA-
308 PM CDT MON APR 30 2007

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CDT THIS
AFTERNOON...
...FIRE WEATHER WATCH REMAINS IN EFFECT TUESDAY AFTERNOON...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CDT THIS
AFTERNOON. A FIRE WEATHER WATCH REMAINS IN EFFECT TUESDAY
AFTERNOON...AND WILL LIKELY BE UPGRADED TO A RED FLAG WARNING LATER
TONIGHT. 

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE FORECAST TO OCCUR. THE LOW RELATIVE HUMIDITY AND WARM
TEMPERATURES WILL SUGGEST AN INCREASE IN FIRE GROWTH POTENTIAL.

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

$$

FLZ002-004-006-008-302300-
/O.CON.KMOB.FW.W.0048.000000T0000Z-070430T2300Z/
COASTAL ESCAMBIA-COASTAL SANTA ROSA-COASTAL OKALOOSA-
COASTAL WALTON-
308 PM CDT MON APR 30 2007

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CDT THIS
AFTERNOON...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CDT THIS
AFTERNOON. 

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE FORECAST TO OCCUR. THE LOW RELATIVE HUMIDITY AND WARM
TEMPERATURES WILL SUGGEST AN INCREASE IN FIRE GROWTH POTENTIAL.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 30, 5:01 AM CDTFire Weather WatchMOB25 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.