Alert archive / Florida / Red Flag Warnings in 2007

Red Flag Warning 16, NWS Mobile, AL

February 17, 2007Walton County, Florida

NWS Mobile, AL issued this red flag warning at Feb 17, 2007, 3:00 PM CST for Walton County, Florida. It took effect at Feb 18, 2007, 11:00 AM CST. 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
Feb 17, 2007, 3:00 PM CST (21:00 UTC)
In effect from
Feb 18, 2007, 11:00 AM CST
Expired
Feb 18, 2007, 6:00 PM CST
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 20:58 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

Eglin AFB/Valpar, FL (KVPS), launched 12:00Z, 9.0 hours before the alert went out and 35 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, Eglin AFB/Valpar, FL at 12:00Z on 2007-02-17Temperature 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, Eglin AFB/Valpar, FL at 12:00Z on 2007-02-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 145 square meters per square second.1939587897117136Sfc1 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
1241 m above ground
0-6 km bulk shear
82 kt
0-1 km storm-relative helicity
145 m²/s²
0-3 km storm-relative helicity
161 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 172100
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
300 PM CST SAT FEB 17 2007

...THE RED FLAG WARNING FOR THE WESTERN FLORIDA PANHANDLE FOR THIS
AFTERNOON HAS BEEN CANCELLED AS RELATIVE HUMIDITY VALUES REMAIN ABOVE 
35 PERCENT...

...THE FIRE WEATHER WATCH THAT WAS IN EFFECT FROM SUNDAY MORNING
THROUGH SUNDAY AFTERNOON FOR THE WESTERN FLORIDA PANHANDLE DUE TO THE
POTENTIAL OF A LONG DURATION OF LOW RELATIVE HUMIDITY BELOW 35
PERCENT HAS BEEN UPGRADED TO A RED FLAG WARNING...

.A COLD FRONT MOVING ACROSS MISSISSIPPI LATE THIS AFTERNOON WILL BE
EAST OF THE AREA BY LATE TONIGHT. AFTER A BREAK SLIGHT WARMUP...A
COLDER AND STRONGER NORTHERLY FLOW WILL REBUILD OVER THE REGION
TONIGHT THROUGH SUNDAY. TEMPERATURES WILL AGAIN MODERATE SLOWLY BY
MONDAY...WITH RAIN CHANCES INCREASING TUESDAY THROUGH WEDNESDAY AS
ANOTHER FRONT MOVES ACROSS THE REGION.

FLZ001>006-008-180500-
/O.CAN.KMOB.FW.W.0015.000000T0000Z-070218T0000Z/
/O.UPG.KMOB.FW.A.0013.070218T1700Z-070219T0000Z/
/O.NEW.KMOB.FW.W.0016.070218T1700Z-070219T0000Z/
INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA-
COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA-
COASTAL WALTON-
300 PM CST SAT FEB 17 2007

...RED FLAG WARNING IN EFFECT FROM 11 AM TO 6 PM CST SUNDAY...
...RED FLAG WARNING IS CANCELLED FOR SATURDAY AFTERNOON OVER 
THE WESTERN FLORIDA PANHANDLE...

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A RED FLAG WARNING...
WHICH IS IN EFFECT FROM 11 AM TO 6 PM CST SUNDAY. AS A RESULT...THE
FIRE WEATHER WATCH FOR SUNDAY IS NO LONGER IN EFFECT. THE RED FLAG
WARNING FOR THIS AFTERNOON HAS BEEN CANCELLED.

A COLD FRONT MOVING ACROSS MISSISSIPPI LATE SATURDAY AFTERNOON WILL
BE EAST OF THE AREA BY LATE TONIGHT. AFTER A BRIEF SLIGHT WARMUP...A
COLDER AND STRONGER NORTHERLY FLOW WILL REBUILD OVER THE REGION
TONIGHT THROUGH SUNDAY. THIS WILL AGAIN BRING A VERY DRY AIRMASS
ACCOMPANIED WITH LOW AFTERNOON RELATIVE HUMIDITIES ON SUNDAY.
TEMPERATURES AND HUMIDITIES WILL AGAIN MODERATE SLOWLY BY MONDAY...
WITH RAIN CHANCES INCREASING TUESDAY THROUGH WEDNESDAY AS ANOTHER
FRONT MOVES ACROSS THE REGION.

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 182102
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
302 PM CST SUN FEB 18 2007

...A RED FLAG WARNING REMAINS IN EFFECT FOR THE WESTERN FLORIDA
PANHANDLE THROUGH 600 PM THIS AFTERNOON FOR LONG DURATIONS OF LOW
RELATIVE HUMIDITY WELL BELOW 35 PERCENT...

...FIRE WEATHER WATCH IN EFFECT FROM MONDAY MORNING THROUGH MONDAY 
AFTERNOON FOR INTERIOR PORTIONS OF THE WESTERN FLORIDA PANHANDLE DUE 
TO THE POSSIBILITY OF LONG DURATION RELATIVE HUMIDITY VALUES 30 TO 
35 PERCENT...

.GUSTY NORTHERLY WINDS WILL CONTINUE TO GRADUALLY DIMINISH THIS
EVENING AS HIGH PRESSURE BUILDS IN FROM THE NORTHWEST. THIS HIGH
PRESSURE WILL MOVE EAST ACROSS THE AREA LATE TONIGHT AND EARLY
MONDAY...AND WILL BE EAST OF THE REGION BY MONDAY AFTERNOON.  AS
A RESULT...LIGHT SOUTHERLY WINDS WILL RETURN TO THE AREA BY MONDAY
NIGHT...AND RELATIVE HUMIDITY VALUES WILL GRADUALLY INCREASE THROUGH
MIDWEEK. SOME LOW AFTERNOON HUMIDITY VALUES OF 35 PERCENT OR LESS
MAY BE POSSIBLE OVER INTERIOR SECTIONS OF THE WESTERN FLORIDA
PANHANDLE MONDAY AFTERNOON BEFORE THE MORE SOUTHERLY WINDS BEGIN TO
MODIFY THE AIRMASS.

FLZ001-003-005-190515-
/O.NEW.KMOB.FW.A.0014.070219T1600Z-070220T0000Z/
/O.CON.KMOB.FW.W.0016.000000T0000Z-070219T0000Z/
INLAND ESCAMBIA-INLAND SANTA ROSA-INLAND OKALOOSA-
302 PM CST SUN FEB 18 2007

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
AFTERNOON...
...FIRE WEATHER WATCH IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A FIRE WEATHER
WATCH...WHICH IS IN EFFECT FROM MONDAY MORNING THROUGH MONDAY
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...OR WILL SHORTLY. A COMBINATION OF
GUSTY WINDS AND LOW RELATIVE HUMIDITY 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.

$$

FLZ002-004-006-008-190000-
/O.CON.KMOB.FW.W.0016.000000T0000Z-070219T0000Z/
COASTAL ESCAMBIA-COASTAL SANTA ROSA-COASTAL OKALOOSA-
COASTAL WALTON-
302 PM CST SUN FEB 18 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...OR WILL SHORTLY. A COMBINATION OF
GUSTY WINDS AND LOW RELATIVE HUMIDITY WILL CREATE EXPLOSIVE FIRE
GROWTH POTENTIAL.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 16, 11:27 PM CSTHard Freeze WarningMOB8 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.