Alert archive / Florida / Red Flag Warnings in 2009

Red Flag Warning 9, NWS Melbourne, FL

January 21, 20096 counties in Florida

NWS Melbourne, FL issued this red flag warning at Jan 21, 2009, 1:54 PM EST for 6 counties in Florida. It took effect at Jan 22, 2009, 12:00 PM EST. 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
Jan 21, 2009, 1:54 PM EST (18:54 UTC)
In effect from
Jan 22, 2009, 12:00 PM EST
Expired
Jan 22, 2009, 6:00 PM EST
In force
6 hr
Issued by
NWS Melbourne, FL

Counties Lake County, FL, Okeechobee County, FL, Orange County, FL, Osceola County, FL, Seminole County, FL, Volusia County, FL

The radar

The Melbourne radar (KMLB), 67 km from the middle of the area, began a volume at 18:53 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

Cape Canaveral, FL (KXMR), launched 12:00Z, 6.9 hours before the alert went out and 73 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, Cape Canaveral, FL at 12:00Z on 2009-01-21Temperature 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, Cape Canaveral, FL at 12:00Z on 2009-01-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 23 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
1402 m above ground
0-6 km bulk shear
101 kt
0-1 km storm-relative helicity
23 m²/s²
0-3 km storm-relative helicity
180 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 
WWUS82 KMLB 211854
RFWMLB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
154 PM EST WED JAN 21 2009

FLZ041-044>047-053-054-141-144-147-221030-
/O.UPG.KMLB.FW.A.0008.090122T1700Z-090122T2300Z/
/O.NEW.KMLB.FW.W.0009.090122T1700Z-090122T2300Z/
/O.CON.KMLB.FW.W.0008.000000T0000Z-090121T2300Z/
/O.CON.KMLB.FW.A.0009.090123T1700Z-090123T2300Z/
INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-SOUTHERN BREVARD-
OSCEOLA-INDIAN RIVER-COASTAL VOLUSIA-SOUTHERN LAKE-
NORTHERN BREVARD-
154 PM EST WED JAN 21 2009

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM EST THIS
AFTERNOON...
...RED FLAG WARNING IN EFFECT FROM 12 PM TO 6 PM EST THURSDAY...
...FIRE WEATHER WATCH REMAINS IN EFFECT FRIDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 12 PM TO 6 PM EST THURSDAY. A
RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM EST THIS AFTERNOON.
A FIRE WEATHER WATCH REMAINS IN EFFECT FRIDAY AFTERNOON.

THIS AFTERNOON AND THURSDAY...LONG DURATION OF CRITICAL RH VALUES 
ARE EXPECTED. MINIMUM RH VALUES WILL BE AROUND 20 TO 25 PERCENT
THIS AFTERNOON AND PERHAPS AS LOW AS 15 TO 25 PERCENT THURSDAY.
NORTHWEST WINDS 10 TO 15 MPH WITH OCCASIONAL HIGHER GUSTS WILL
BE FELT THE REMAINDER OF THIS 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 WARMING 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.

$$

FLZ058-059-064-221030-
/O.UPG.KMLB.FW.A.0008.090122T1700Z-090122T2300Z/
/O.NEW.KMLB.FW.W.0009.090122T1700Z-090122T2300Z/
/O.CON.KMLB.FW.W.0008.000000T0000Z-090121T2300Z/
OKEECHOBEE-ST. LUCIE-MARTIN-
154 PM EST WED JAN 21 2009

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM EST THIS
AFTERNOON...
...RED FLAG WARNING IN EFFECT FROM 12 PM TO 6 PM EST THURSDAY...

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 12 PM TO 6 PM EST THURSDAY. A
RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM EST THIS AFTERNOON.

THIS AFTERNOON AND THURSDAY...LONG DURATION OF CRITICAL RH VALUES 
ARE EXPECTED. MINIMUM RH VALUES WILL BE AROUND 25 TO 30 PERCENT 
THIS AFTERNOON AND PERHAPS AS LOW AS 20 TO 25 PERCENT THURSDAY.

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

$$
2 follow-up statements
000 
WWUS82 KMLB 212319
RFWMLB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
619 PM EST WED JAN 21 2009

FLZ041-044>047-053-054-141-144-147-222300-
/O.EXP.KMLB.FW.W.0008.000000T0000Z-090121T2300Z/
/O.CON.KMLB.FW.W.0009.090122T1700Z-090122T2300Z/
/O.CON.KMLB.FW.A.0009.090123T1700Z-090123T2300Z/
INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-SOUTHERN BREVARD-
OSCEOLA-INDIAN RIVER-COASTAL VOLUSIA-SOUTHERN LAKE-
NORTHERN BREVARD-
619 PM EST WED JAN 21 2009

...RED FLAG WARNING REMAINS IN EFFECT FROM 12 PM TO 6 PM EST
THURSDAY...
...FIRE WEATHER WATCH REMAINS IN EFFECT FRIDAY AFTERNOON...

DRY AIRMASS WILL CONTINUE TO REMAIN OVER THE AREA THURSDAY WITH
LONG DURATION OF CRITICAL RH VALUES EXPECTED. MINIMUM RH VALUES
COULD BE AS LOW AS 15 TO 25 PERCENT DURING THE AFTERNOON.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. 

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

$$

FLZ058-059-064-222300-
/O.EXP.KMLB.FW.W.0008.000000T0000Z-090121T2300Z/
/O.CON.KMLB.FW.W.0009.090122T1700Z-090122T2300Z/
OKEECHOBEE-ST. LUCIE-MARTIN-
619 PM EST WED JAN 21 2009

...RED FLAG WARNING REMAINS IN EFFECT FROM 12 PM TO 6 PM EST
THURSDAY...

DRY AIRMASS WILL CONTINUE TO REMAIN OVER THE AREA THURSDAY WITH
LONG DURATION OF CRITICAL RH VALUES EXPECTED. MINIMUM RH VALUES
COULD BE AS LOW AS 20 TO 25 PERCENT DURING THE AFTERNOON.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. 

$$
000 
WWUS82 KMLB 221908
RFWMLB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
208 PM EST THU JAN 22 2009

FLZ041-044>047-053-054-141-144-147-222300-
/O.UPG.KMLB.FW.A.0009.090123T1700Z-090123T2300Z/
/O.NEW.KMLB.FW.W.0010.090123T1700Z-090123T2300Z/
/O.CON.KMLB.FW.W.0009.000000T0000Z-090122T2300Z/
INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-SOUTHERN BREVARD-
OSCEOLA-INDIAN RIVER-COASTAL VOLUSIA-SOUTHERN LAKE-
NORTHERN BREVARD-
208 PM EST THU JAN 22 2009

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM EST THIS
AFTERNOON...
...RED FLAG WARNING IN EFFECT FROM 12 PM TO 6 PM EST FRIDAY...

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 12 PM TO 6 PM EST FRIDAY. A RED
FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM EST THIS AFTERNOON.

A DRY AIRMASS WILL CONTINUE TO REMAIN OVER THE AREA THIS AFTERNOON
AND AGAIN FRIDAY WITH LONG DURATION OF CRITICAL RH VALUES
EXPECTED. MINIMUM RH VALUES COULD BE AS LOW AS 15 TO 25 PERCENT
DURING THE AFTERNOON.

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

$$

FLZ058-222300-
/O.NEW.KMLB.FW.W.0010.090123T1700Z-090123T2300Z/
/O.CON.KMLB.FW.W.0009.000000T0000Z-090122T2300Z/
OKEECHOBEE-
208 PM EST THU JAN 22 2009

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM EST THIS
AFTERNOON...
...RED FLAG WARNING IN EFFECT FROM 12 PM TO 6 PM EST FRIDAY...

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 12 PM TO 6 PM EST FRIDAY. A RED
FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM EST THIS AFTERNOON. 

A DRY AIRMASS WILL CONTINUE TO REMAIN OVER THE AREA THIS AFTERNOON
AND AGAIN FRIDAY WITH LONG DURATION OF CRITICAL RH VALUES
EXPECTED. MINIMUM RH VALUES COULD BE AS LOW AS 20 TO 25 PERCENT
DURING THE AFTERNOON.

A DRY AIRMASS WILL CONTINUE TO REMAIN OVER THE AREA THIS AFTERNOON
AND AGAIN FRIDAY WITH LONG DURATION OF CRITICAL RH VALUES
EXPECTED. MINIMUM RH VALUES COULD BE AS LOW AS 15 TO 25 PERCENT
DURING THE AFTERNOON.

$$

FLZ059-064-222300-
/O.CON.KMLB.FW.W.0009.000000T0000Z-090122T2300Z/
ST. LUCIE-MARTIN-
208 PM EST THU JAN 22 2009

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

A DRY AIRMASS WILL CONTINUE TO REMAIN OVER THE AREA THIS
AFTERNOON. MINIMUM RH VALUES COULD BE AS LOW AS 20 TO 25 PERCENT
DURING THE AFTERNOON.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY.

$$

The office that day

Everything else NWS Melbourne, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 21, 3:13 AM ESTFire Weather WatchMLBLake, Orange, Osceola, Seminole, Volusia35 hr
Jan 21, 3:42 AM ESTFreeze WatchMLBLake, Volusia25 hr
Jan 21, 3:42 AM ESTFreeze WarningMLBOkeechobee, Osceola29 hr
Jan 21, 3:42 AM ESTHard Freeze WarningMLBLake, Okeechobee, Orange, Osceola, Seminole, Volusia29 hr

Nearby

Red Flag Warnings in Florida, 2009Every red flag warning in 2009

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.