Alert archive / Florida / Red Flag Warnings in 2008

Red Flag Warning 73, NWS Mobile, AL

November 7, 2008Walton County, Florida

NWS Mobile, AL issued this red flag warning at Nov 7, 2008, 2:06 PM CST for Walton County, Florida. It took effect at Nov 8, 2008, 10:00 AM CST. 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
Nov 7, 2008, 2:06 PM CST (20:06 UTC)
In effect from
Nov 8, 2008, 10:00 AM CST
Expired
Nov 8, 2008, 6:00 PM CST
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 20:08 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 12:00Z, 8.1 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 12:00Z on 2008-11-07Temperature 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 12:00Z on 2008-11-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 41 square meters per square second.193958Sfc1 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
1067 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
41 m²/s²
0-3 km storm-relative helicity
57 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 072006
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
206 PM CST FRI NOV 7 2008

...RED FLAG WARNING IN EFFECT FOR SATURDAY AFTERNOON ACROSS THE WESTERN
FLORIDA PANHANDLE DUE TO A LONG DURATION OF LOW RELATIVE HUMIDITY
BELOW 35 PERCENT... 

...FIRE WEATHER WATCH IN EFFECT FOR SUNDAY AFTERNOON ACROSS THE
WESTERN FLORIDA PANHANDLE DUE TO THE POTENTIAL OF A LONG DURATION OF
LOW RELATIVE HUMIDITY...

.A COLD FRONT WILL MOVE EAST ACROSS THE WESTERN FLORIDA PANHANDLE
THIS EVENING. A DRY AIRMASS WILL MOVE IN BEHIND THE FRONT ON
SATURDAY...WITH AFTERNOON RELATIVE HUMIDITY VALUES FALLING TO AROUND
25 PERCENT WITH NORTHWEST WINDS AT 10 TO 15 MPH. THE DRY AIRMASS WILL
CONTINUE ON SUNDAY RELATIVE HUMIDITY LEVELS AGAIN APPROACHING CRITICAL
VALUES.

FLZ001>006-008-081215-
/O.UPG.KMOB.FW.A.0064.081108T1800Z-081108T2300Z/
/O.NEW.KMOB.FW.W.0073.081108T1800Z-081108T2300Z/
/O.NEW.KMOB.FW.A.0065.081109T1800Z-081109T2300Z/
INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA-
COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA-
COASTAL WALTON-
206 PM CST FRI NOV 7 2008

...RED FLAG WARNING IN EFFECT FROM 12 PM TO 5 PM CST SATURDAY...
...FIRE WEATHER WATCH IN EFFECT SUNDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 12 PM TO 5 PM CST SATURDAY. A
FIRE WEATHER WATCH HAS ALSO BEEN ISSUED AND 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
RAPID 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.

$$
2 follow-up statements
000 
WWUS84 KMOB 081036
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
436 AM CST SAT NOV 8 2008

...RED FLAG WARNING IN EFFECT FROM 10 AM THIS MORNING TO 6 PM CST
THIS EVENING ACROSS THE WESTERN FLORIDA PANHANDLE DUE TO A LONG
DURATION OF LOW RELATIVE HUMIDITY BELOW 35 PERCENT...

...A FIRE WEATHER WATCH IS IN EFFECT FOR SUNDAY AFTERNOON ACROSS 
THE WESTERN FLORIDA PANHANDLE DUE TO THE POTENTIAL OF A LONG
DURATION OF LOW RELATIVE HUMIDITY...

.A DRY AIRMASS WILL REMAIN IN PLACE ACROSS THE CENTRAL GULF COAST 
REGION THROUGH SUNDAY. RELATIVE HUMIDITY VALUES WILL FALL TO AROUND
25 PERCENT BOTH DAYS.  

FLZ001>006-008-090000-
/O.EXT.KMOB.FW.W.0073.081108T1600Z-081109T0000Z/
/O.EXT.KMOB.FW.A.0065.081109T1800Z-081110T0000Z/
INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA-
COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA-
COASTAL WALTON-
436 AM CST SAT NOV 8 2008

...RED FLAG WARNING NOW IN EFFECT FROM 10 AM THIS MORNING TO 6 PM
CST THIS AFTERNOON...
...FIRE WEATHER WATCH NOW IN EFFECT SUNDAY AFTERNOON...

THE RED FLAG WARNING IS NOW IN EFFECT FROM 10 AM THIS MORNING TO
6 PM CST THIS AFTERNOON. THE FIRE WEATHER WATCH IS NOW IN EFFECT
SUNDAY AFTERNOON. 

RELATIVE HUMIDITY VALUES WILL FALL TO AROUND 25 PERCENT TODAY AND
AGAIN ON SUNDAY. THE DRY AIR WILL BE MORE PROLONGED TODAY WITH A
WEST TO NORTHWEST WIND AT 10 TO 15 MPH.

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

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

$$
000
WWUS84 KMOB 081951
RFWMOB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MOBILE AL
151 PM CST SAT NOV 8 2008

...RED FLAG WARNING IN EFFECT UNTIL 6 PM CST THIS AFTERNOON FOR
THE NORTHWEST FLORIDA PANHANDLE DUE TO LONG DURATION OF LOW
RELATIVE HUMIDITY...

...RED FLAG WARNING IN EFFECT FROM 10 AM TO 6 PM CST SUNDAY FOR
THE NORTHWEST FLORIDA PANHANDLE DUE TO LONG DURATION OF LOW
RELATIVE HUMIDITY...

...FIRE WEATHER WATCH IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY AFTERNOON FOR THE NORTHWEST FLORIDA PANHANDLE DUE TO LONG
DURATION OF LOW RELATIVE HUMIDITY...

.DISCUSSION...A VERY DRY AIRMASS WILL REMAIN OVER THE REGION
THROUGH MONDAY.  GULF MOISTURE WILL RETURN TO THE REGION QUICKLY
ON TUESDAY AS A LOW PRESSURE SYSTEM APPROACHES FROM THE SOUTHERN
PLAINS.  AFTERNOON RELATIVE HUMIDITIES WILL DROP BELOW CRITICAL
LEVELS OVER THE NORTHWEST FLORIDA PANHANDLE THROUGH
MONDAY...AND ALSO DROP BELOW CRITICAL LEVELS OVER SOUTHWEST
ALABAMA THIS AFTERNOON BUT NOT SATISFY DURATION CRITERIA.

FLZ001>006-008-091200-
/O.UPG.KMOB.FW.A.0065.081109T1800Z-081110T0000Z/
/O.NEW.KMOB.FW.W.0074.081109T1600Z-081110T0000Z/
/O.NEW.KMOB.FW.A.0066.081110T1600Z-081111T0000Z/
/O.CON.KMOB.FW.W.0073.000000T0000Z-081109T0000Z/
INLAND ESCAMBIA-COASTAL ESCAMBIA-INLAND SANTA ROSA-
COASTAL SANTA ROSA-INLAND OKALOOSA-COASTAL OKALOOSA-
COASTAL WALTON-
151 PM CST SAT NOV 8 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM CST THIS
AFTERNOON...
...RED FLAG WARNING IN EFFECT FROM 10 AM TO 6 PM CST SUNDAY...
...FIRE WEATHER WATCH IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 10 AM TO 6 PM CST SUNDAY. A
FIRE WEATHER WATCH HAS ALSO BEEN ISSUED AND IS IN EFFECT FROM
MONDAY MORNING THROUGH MONDAY AFTERNOON. A RED FLAG WARNING
REMAINS IN EFFECT UNTIL 6 PM CST THIS AFTERNOON.

RELATIVE HUMIDITY VALUES WILL FALL INTO THE LOWER TWENTIES THIS
AFTERNOON AND AROUND 25 PERCENT TODAY AND INTO THE TWENTIES AGAIN ON
SUNDAY AND MONDAY 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.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 7, 2:06 PM CSTFire Weather WatchMOBWalton24 hr

Nearby

Red Flag Warnings in Florida, 2008Every 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.