Alert archive / Florida / Red Flag Warnings in 2008

Red Flag Warning 49, NWS Mobile, AL

May 6, 2008Walton County, Florida

NWS Mobile, AL issued this red flag warning at May 6, 2008, 4:25 AM CDT for Walton County, Florida. It took effect at May 6, 2008, 11:00 AM CDT. 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: May 6, 2008, 4:25 AM CDT (09:25 UTC)
In effect from: May 6, 2008, 11:00 AM CDT
Expired: May 6, 2008, 7:00 PM CDT
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 09:27 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, 9.4 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: 2928 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 21 m²/s²
0-3 km storm-relative helicity: 51 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 060925
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
425 AM CDT TUE MAY 6 2008

...RED FLAG WARNING IN EFFECT FROM 11 AM UNTIL 7 PM CDT THIS EVENING
ACROSS THE WESTERN FLORIDA PANHANDLE FOR LONG DURATIONS OF LOW
RELATIVE HUMIDITY BELOW 35 PERCENT...

.HIGH PRESSURE OVER MISSISSIPPI WILL MOVE SLOWLY EAST ACROSS ALABAMA 
TODAY. A VERY DRY AIRMASS NEAR THE REGION OF HIGH PRESSURE WILL 
PERSIST THROUGH THIS EVENING. AS HIGH PRESSURE MOVES EAST OF THE 
WESTERN FLORIDA PANHANDLE ON WEDNESDAY...SOUTHERLY WINDS WILL 
BRING AN INCREASE IN RELATIVE HUMIDITY VALUES FOR WEDNESDAY AND 
THURSDAY. 

FLZ001>006-008-062130-
/O.UPG.KMOB.FW.A.0043.080506T1600Z-080507T0000Z/
/O.NEW.KMOB.FW.W.0049.080506T1600Z-080507T0000Z/
INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA-
COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA-
COASTAL WALTON-
425 AM CDT TUE MAY 6 2008

...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 7 PM CDT
THIS EVENING...

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 7 PM CDT
THIS EVENING. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. 

RELATIVE HUMIDITY VALUES ARE FORECAST TO FALL BELOW 35 PERCENT BY 
LATE MORNING...DROPPING TO BETWEEN 20 AND 25 PERCENT IN THE MID 
AFTERNOON HOURS. THE RH VALUES WILL RISE ABOVE 35 PERCENT IN THE
EARLY EVENING.  

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 CREATE EXPLOSIVE
FIRE GROWTH POTENTIAL.


$$

1 follow-up statement

000 
WWUS84 KMOB 062101
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
401 PM CDT TUE MAY 6 2008

...RED FLAG WARNING IN EFFECT UNTIL 7 PM CDT THIS EVENING ACROSS THE
WESTERN FLORIDA PANHANDLE DUE TO LONG DURATIONS OF LOW RELATIVE
HUMIDITY BELOW 35 PERCENT...

.HIGH PRESSURE OVER EASTERN MISSISSIPPI WILL MOVE EAST ACROSS ALABAMA
TONIGHT. THE DRY AIRMASS WILL BECOME MODIFIED DURING THE DAY ON
WEDNESDAY AS INCREASED LOW LEVEL MOISTURE MOVES INLAND FROM AN
INCREASED SOUTHERLY WIND FLOW. AFTERNOON RELATIVE HUMIDITIES WILL
REMAIN ABOVE CRITICAL THRESHOLDS WEDNESDAY THROUGH THE REMAINDER OF
THE WEEK.

FLZ001>006-008-070000-
/O.CON.KMOB.FW.W.0049.000000T0000Z-080507T0000Z/
INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA-
COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA-
COASTAL WALTON-
401 PM CDT TUE MAY 6 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING.

HIGH PRESSURE OVER EASTERN MISSISSIPPI WILL MOVE EAST ACROSS ALABAMA
TONIGHT. THE DRY AIRMASS WILL BECOME MODIFIED DURING THE DAY ON
WEDNESDAY AS INCREASED LOW LEVEL MOISTURE MOVES INLAND FROM AN
INCREASED SOUTHERLY WIND FLOW. AFTERNOON RELATIVE HUMIDITIES WILL
REMAIN ABOVE CRITICAL THRESHOLDS WEDNESDAY THROUGH THE REMAINDER OF
THE WEEK.

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 CREATE EXPLOSIVE FIRE GROWTH
POTENTIAL.

$$

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.