Alert archive / Florida / Red Flag Warnings in 2011

Red Flag Warning 8, NWS Melbourne, FL

February 12, 20116 counties in Florida

NWS Melbourne, FL issued this red flag warning at Feb 12, 2011, 2:27 PM EST for 6 counties in Florida. It took effect at Feb 13, 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 12, 2011, 2:27 PM EST (19:27 UTC)
In effect from
Feb 13, 2011, 12:00 PM EST
Expired
Feb 13, 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 19:28 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, 7.5 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 2011-02-12Temperature 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 2011-02-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -111 square meters per square second.1939587897117Sfc1 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
871 m above ground
0-6 km bulk shear
71 kt
0-1 km storm-relative helicity
-111 m²/s²
0-3 km storm-relative helicity
4 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.

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
3 follow-up statements
233 
WWUS82 KMLB 130359
RFWMLB

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MELBOURNE FL
1059 PM EST SAT FEB 12 2011

FLZ041-044>047-053-054-058-141-144-147-132300-
/O.CON.KMLB.FW.W.0008.110213T1700Z-110213T2300Z/
/O.CON.KMLB.FW.A.0008.110214T1700Z-110214T2300Z/
INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-SOUTHERN BREVARD-
OSCEOLA-INDIAN RIVER-OKEECHOBEE-COASTAL VOLUSIA-SOUTHERN LAKE-
NORTHERN BREVARD-
1059 PM EST SAT FEB 12 2011

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

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

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.
 
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.

&&

$$
542 
WWUS82 KMLB 130833
RFWMLB

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MELBOURNE FL
333 AM EST SUN FEB 13 2011

FLZ041-044>047-053-054-058-141-144-147-132300-
/O.EXT.KMLB.FW.A.0008.110214T1600Z-110214T2300Z/
/O.CON.KMLB.FW.W.0008.110213T1700Z-110213T2300Z/
INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-SOUTHERN BREVARD-
OSCEOLA-INDIAN RIVER-OKEECHOBEE-COASTAL VOLUSIA-SOUTHERN LAKE-
NORTHERN BREVARD-
333 AM EST SUN FEB 13 2011

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 6 PM EST
THIS EVENING...
...FIRE WEATHER WATCH NOW IN EFFECT FROM LATE MONDAY MORNING
THROUGH MONDAY AFTERNOON...

A RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 6 PM EST
THIS EVENING.

THE FIRE WEATHER WATCH FOR TOMORROW IS NOW IN EFFECT FROM LATE
MONDAY MORNING THROUGH MONDAY AFTERNOON.

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.

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.

&&

$$

FLZ059-064-132300-
/O.EXB.KMLB.FW.A.0008.110214T1600Z-110214T2300Z/
ST. LUCIE-MARTIN-
333 AM EST SUN FEB 13 2011

...FIRE WEATHER WATCH IN EFFECT FROM LATE MONDAY MORNING THROUGH
MONDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A FIRE
WEATHER WATCH...WHICH IS IN EFFECT FROM LATE MONDAY MORNING
THROUGH MONDAY AFTERNOON.

A VERY DRY AIRMASS WILL REMAIN IN PLACE ACROSS THE FLORIDA
PENINSULA INTO EARLY NEXT WEEK. AFTERNOON RELATIVE HUMIDITY VALUES
ON MONDAY ARE EXPECTED TO DROP TO THE LOW 30S ACROSS SAINT LUCIE
AND MARTIN COUNTIES FOR SEVERAL HOURS...ESPECIALLY OVER THE
INTERIOR.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

WEITLICH
157 
WWUS82 KMLB 131907
RFWMLB

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MELBOURNE FL
207 PM EST SUN FEB 13 2011

FLZ041-044>047-053-058-141-144-147-141100-
/O.UPG.KMLB.FW.A.0008.110214T1600Z-110214T2300Z/
/O.NEW.KMLB.FW.W.0009.110214T1600Z-110214T2300Z/
/O.CON.KMLB.FW.W.0008.000000T0000Z-110213T2300Z/
INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-SOUTHERN BREVARD-
OSCEOLA-OKEECHOBEE-COASTAL VOLUSIA-SOUTHERN LAKE-NORTHERN BREVARD-
207 PM EST SUN FEB 13 2011

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM EST THIS
EVENING...
...RED FLAG WARNING IN EFFECT FROM 11 AM TO 6 PM EST MONDAY...

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 11 AM TO 6 PM EST MONDAY. A RED
FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM EST THIS EVENING.

AFTERNOON RELATIVE HUMIDITIES HAVE DROPPED INTO THE UPPER TEENS AND
20S ACROSS THE WARNING AREA THIS AFTERNOON. RELATIVE HUMIDITIES
ARE EXPECTED TO REMAIN BELOW 35 PERCENT THROUGH THE EVENING HOURS. 

THE VERY DRY AIR MASS ACROSS FLORIDA WILL REMAIN IN PLACE INTO
MONDAY...ALLOWING FOR ANOTHER AFTERNOON OF LOW RELATIVE HUMIDITIES
ACROSS THE REGION. RELATIVE HUMIDITIES WILL DROP TO 20 TO 30 PERCENT
ACROSS THE WARNING AREA FOR SEVERAL HOURS DURING 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.

&&

$$

FLZ054-141100-
/O.CON.KMLB.FW.W.0008.000000T0000Z-110213T2300Z/
/O.CON.KMLB.FW.A.0008.110214T1600Z-110214T2300Z/
INDIAN RIVER-
207 PM EST SUN FEB 13 2011

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

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

AFTERNOON RELATIVE HUMIDITIES HAVE DROPPED INTO THE UPPER 30S ACROSS
THE WARNING AREA THIS AFTERNOON...AND ARE EXPECTED TO DROP TO
AROUND OR BELOW 35 PERCENT THROUGH THE EVENING HOURS.

THE VERY DRY AIR MASS ACROSS FLORIDA WILL REMAIN IN PLACE INTO
MONDAY...ALLOWING FOR ANOTHER AFTERNOON OF LOW RELATIVE HUMIDITIES
ACROSS THE REGION. RELATIVE HUMIDITIES MAY DROP TO AROUND 35
PERCENT FOR SEVERAL HOURS MONDAY 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.

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.

&&

$$

FLZ059-064-141100-
/O.CON.KMLB.FW.A.0008.110214T1600Z-110214T2300Z/
ST. LUCIE-MARTIN-
207 PM EST SUN FEB 13 2011

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM MONDAY MORNING
THROUGH MONDAY AFTERNOON...

A FIRE WEATHER WATCH REMAINS IN EFFECT FROM MONDAY MORNING
THROUGH MONDAY AFTERNOON. 

THE VERY DRY AIR MASS ACROSS FLORIDA WILL REMAIN IN PLACE INTO
MONDAY...ALLOWING FOR ANOTHER AFTERNOON OF LOW RELATIVE HUMIDITIES
ACROSS THE REGION. RELATIVE HUMIDITY VALUES ARE EXPECTED TO DROP
TO THE MID 30S ACROSS SAINT LUCIE AND MARTIN COUNTIES FOR SEVERAL
HOURS DURING THE AFTERNOON...ESPECIALLY OVER THE INTERIOR.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 12, 2:27 PM ESTFire Weather WatchMLBLake, Okeechobee, Orange, Osceola, Seminole, Volusia38 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.