Alert archive / Florida / Red Flag Warnings in 2011

Red Flag Warning 7, NWS Melbourne, FL

February 11, 20116 counties in Florida

NWS Melbourne, FL issued this red flag warning at Feb 11, 2011, 3:56 AM EST for 6 counties in Florida. It took effect at Feb 12, 2011, 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
Feb 11, 2011, 3:56 AM EST (08:56 UTC)
In effect from
Feb 12, 2011, 12:00 PM EST
Expired
Feb 12, 2011, 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 08:58 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

Cape Canaveral, FL (KXMR), launched 00:00Z, 8.9 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 00:00Z on 2011-02-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 2011-02-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 40 square meters per square second.1939587897Sfc1 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
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
473 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
40 m²/s²
0-3 km storm-relative helicity
93 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.

871 
WWUS82 KMLB 110856
RFWMLB

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MELBOURNE FL
356 AM EST FRI FEB 11 2011

FLZ041-044>046-053-141-144-112100-
/O.UPG.KMLB.FW.A.0006.110212T1700Z-110212T2300Z/
/O.NEW.KMLB.FW.W.0007.110212T1700Z-110212T2300Z/
INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-OSCEOLA-
COASTAL VOLUSIA-SOUTHERN LAKE-
356 AM EST FRI FEB 11 2011

...RED FLAG WARNING IN EFFECT FROM NOON TO 6 PM EST SATURDAY...

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM NOON TO 6 PM EST SATURDAY. THE
FIRE WEATHER WATCH IS NO LONGER IN EFFECT. 

CONSIDERABLY DRIER CONDITIONS WILL MOVE INTO THE REGION ON
SATURDAY AS A COLD FRONT MOVES SOUTH OF THE FLORIDA PENINSULA.
SEVERAL HOURS OF RELATIVE HUMIDITIES BELOW 35 PERCENT ARE
EXPECTED ACROSS THE WARNING AREA SATURDAY AFTERNOON.

WINDS WILL BE FROM THE NORTH AT 10 TO 15 MPH SATURDAY WITH
OCCASIONAL GUSTS TO 20 MPH POSSIBLE IN THE AFTERNOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING IS ISSUED WHEN VERY FAVORABLE CONDITIONS FOR
THE SPREAD OF WILDFIRE ARE OCCURRING NOW...OR WILL LIKELY OCCUR
WITHIN THE NEXT 24 HOURS.

&&

$$

FLZ047-054-058-147-112100-
/O.NEW.KMLB.FW.W.0007.110212T1700Z-110212T2300Z/
SOUTHERN BREVARD-INDIAN RIVER-OKEECHOBEE-NORTHERN BREVARD-
356 AM EST FRI FEB 11 2011

...RED FLAG WARNING IN EFFECT FROM NOON TO 6 PM EST SATURDAY...

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM NOON TO 6 PM EST SATURDAY. 

CONSIDERABLY DRIER CONDITIONS WILL MOVE INTO THE REGION ON
SATURDAY AS A COLD FRONT MOVES SOUTH OF THE FLORIDA PENINSULA.
SEVERAL HOURS OF RELATIVE HUMIDITIES BELOW 35 PERCENT ARE
EXPECTED ACROSS THE WARNING AREA SATURDAY AFTERNOON.

WINDS WILL BE FROM THE NORTH AT 10 TO 15 MPH SATURDAY WITH
OCCASIONAL GUSTS TO 20 MPH POSSIBLE IN THE AFTERNOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING IS ISSUED WHEN VERY FAVORABLE CONDITIONS FOR
THE SPREAD OF WILDFIRE ARE OCCURRING NOW...OR WILL LIKELY OCCUR
WITHIN THE NEXT 24 HOURS.

&&

$$

WEITLICH
3 follow-up statements
629 
WWUS82 KMLB 111921
RFWMLB

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MELBOURNE FL
221 PM EST FRI FEB 11 2011

FLZ041-044>047-053-054-058-141-144-147-121100-
/O.NEW.KMLB.FW.A.0007.110213T1700Z-110213T2300Z/
/O.CON.KMLB.FW.W.0007.110212T1700Z-110212T2300Z/
INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-SOUTHERN BREVARD-
OSCEOLA-INDIAN RIVER-OKEECHOBEE-COASTAL VOLUSIA-SOUTHERN LAKE-
NORTHERN BREVARD-
221 PM EST FRI FEB 11 2011

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 6 PM EST
SATURDAY...
...FIRE WEATHER WATCH IN EFFECT SUNDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A FIRE
WEATHER WATCH...WHICH IS IN EFFECT SUNDAY AFTERNOON. A RED FLAG
WARNING REMAINS IN EFFECT FROM NOON TO 6 PM EST SATURDAY. 

CONSIDERABLY DRIER CONDITIONS WILL MOVE INTO THE REGION ON
SATURDAY BEHIND A COLD FRONT MOVING SOUTH OF THE FLORIDA
PENINSULA. RELATIVE HUMIDITIES ARE EXPECTED TO DROP TO 20 TO 25
PERCENT ACROSS THE INTERIOR COUNTIES...AND AROUND 30 PERCENT IN
BREVARD AND INDIAN RIVER COUNTIES FOR SEVERAL HOURS DURING THE
AFTERNOON.  

DRY CONDITIONS WILL CONTINUE INTO SUNDAY WITH SEVERAL HOURS OF
RELATIVE HUMIDITIES BELOW 35 PERCENT EXPECTED DURING THE
AFTERNOON. 

WINDS WILL BE FROM THE NORTH AT 10 TO 15 MPH SATURDAY WITH
OCCASIONAL GUSTS TO 20 MPH POSSIBLE IN THE AFTERNOON. WINDS ARE
EXPECTED TO DROP TO LESS THAN 10 MPH ON SUNDAY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING IS ISSUED WHEN VERY FAVORABLE CONDITIONS FOR
THE SPREAD OF WILDFIRE ARE OCCURRING NOW...OR WILL LIKELY OCCUR
WITHIN THE NEXT 24 HOURS.

A FIRE WEATHER WATCH IS ISSUED WHEN VERY FAVORABLE CONDITIONS FOR
THE SPREAD OF WILDFIRE ARE FORECAST TO OCCUR IN THE NEXT 24 TO
96 HOURS. PLEASE MONITOR UPCOMING FORECASTS FOR THE LATEST FIRE
WEATHER INFORMATION.

&&

$$
MOSES
735 
WWUS82 KMLB 121002
RFWMLB

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MELBOURNE FL
502 AM EST SAT FEB 12 2011

FLZ041-044>047-053-054-058-141-144-147-122300-
/O.CON.KMLB.FW.W.0007.110212T1700Z-110212T2300Z/
/O.CON.KMLB.FW.A.0007.110213T1700Z-110213T2300Z/
INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-SOUTHERN BREVARD-
OSCEOLA-INDIAN RIVER-OKEECHOBEE-COASTAL VOLUSIA-SOUTHERN LAKE-
NORTHERN BREVARD-
502 AM EST SAT FEB 12 2011

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 6 PM EST
THIS EVENING...
...FIRE WEATHER WATCH REMAINS IN EFFECT SUNDAY AFTERNOON...

A RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 6 PM EST
THIS EVENING. A FIRE WEATHER WATCH REMAINS IN EFFECT SUNDAY
AFTERNOON. 

CONSIDERABLY DRIER CONDITIONS WILL MOVE INTO THE REGION TODAY
BEHIND A COLD FRONT MOVING SOUTH OF THE FLORIDA PENINSULA.
RELATIVE HUMIDITIES ARE EXPECTED TO DROP TO 20 TO 25 PERCENT
ACROSS THE INTERIOR COUNTIES...AND AROUND 30 PERCENT IN BREVARD
AND INDIAN RIVER COUNTIES FOR SEVERAL HOURS DURING THE AFTERNOON.

DRY CONDITIONS WILL CONTINUE INTO SUNDAY WITH SEVERAL HOURS OF
RELATIVE HUMIDITIES BELOW 35 PERCENT EXPECTED DURING THE
AFTERNOON.

WINDS WILL BE FROM THE NORTH AT NEAR 15 MPH THIS AFTERNOON WITH
OCCASIONAL GUSTS TO 20 MPH POSSIBLE. WINDS ARE THEN EXPECTED TO
DROP TO LESS THAN 10 MPH ON SUNDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING IS ISSUED WHEN VERY FAVORABLE CONDITIONS FOR
THE SPREAD OF WILDFIRE ARE OCCURRING NOW...OR WILL LIKELY OCCUR
WITHIN THE NEXT 24 HOURS.

A FIRE WEATHER WATCH IS ISSUED WHEN VERY FAVORABLE CONDITIONS FOR
THE SPREAD OF WILDFIRE ARE FORECAST TO OCCUR IN THE NEXT 24 TO
96 HOURS. PLEASE MONITOR UPCOMING FORECASTS FOR THE LATEST FIRE
WEATHER INFORMATION.

&&

$$
641 
WWUS82 KMLB 121927
RFWMLB

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MELBOURNE FL
227 PM EST SAT FEB 12 2011

FLZ041-044>047-053-054-058-141-144-147-122300-
/O.UPG.KMLB.FW.A.0007.110213T1700Z-110213T2300Z/
/O.NEW.KMLB.FW.W.0008.110213T1700Z-110213T2300Z/
/O.NEW.KMLB.FW.A.0008.110214T1700Z-110214T2300Z/
/O.CON.KMLB.FW.W.0007.000000T0000Z-110212T2300Z/
INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-SOUTHERN BREVARD-
OSCEOLA-INDIAN RIVER-OKEECHOBEE-COASTAL VOLUSIA-SOUTHERN LAKE-
NORTHERN BREVARD-
227 PM EST SAT FEB 12 2011

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM EST THIS
EVENING...
...RED FLAG WARNING IN EFFECT FROM NOON TO 6 PM EST SUNDAY...
...FIRE WEATHER WATCH IN EFFECT MONDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM NOON TO 6 PM EST SUNDAY. A FIRE
WEATHER WATCH HAS ALSO BEEN ISSUED. THIS FIRE WEATHER WATCH IS IN
EFFECT MONDAY AFTERNOON. A RED FLAG WARNING REMAINS IN EFFECT
UNTIL 6 PM EST THIS EVENING.

A VERY DRY AIRMASS WILL REMAIN IN PLACE ACROSS THE FLORIDA
PENINSULA INTO EARLY NEXT WEEK. THIS WILL ALLOW AFTERNOON RELATIVE
HUMIDITIES TO DROP TO 20 TO 30 PERCENT ACROSS THE WARNING AND
WATCH AREAS EACH AFTERNOON THROUGH MONDAY. 

COASTAL LOCATIONS WILL SEE WINDS FROM THE NORTH AND NORTHEAST NEAR
15 MPH THIS AFTERNOON WITH OCCASIONAL GUSTS TO 20 MPH POSSIBLE.
WINDS ARE THEN EXPECTED TO DROP TO LESS THAN 10 MPH ON SUNDAY AND
MONDAY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING IS ISSUED WHEN VERY FAVORABLE CONDITIONS FOR
THE SPREAD OF WILDFIRE ARE OCCURRING NOW...OR WILL LIKELY OCCUR
WITHIN THE NEXT 24 HOURS.

A FIRE WEATHER WATCH IS ISSUED WHEN VERY FAVORABLE CONDITIONS FOR
THE SPREAD OF WILDFIRE ARE FORECAST TO OCCUR IN THE NEXT 24 TO
96 HOURS. PLEASE MONITOR UPCOMING FORECASTS FOR THE LATEST FIRE
WEATHER INFORMATION.

&&

$$

MOSES

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 11, 10:33 AM ESTSmall Craft AdvisoryMLB35 hr
Feb 11, 2:21 PM ESTFire Weather WatchMLBLake, Okeechobee, Orange, Osceola, Seminole, Volusia24 hr

Nearby

Red Flag Warnings in Florida, 2011Every red flag warning in 2011

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.