Alert archive / Florida / Red Flag Warnings in 2011

Red Flag Warning 9, NWS Melbourne, FL

February 13, 20116 counties in Florida

NWS Melbourne, FL issued this red flag warning at Feb 13, 2011, 2:07 PM EST for 6 counties in Florida. It took effect at Feb 14, 2011, 11:00 AM EST. It was in force for 7 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 13, 2011, 2:07 PM EST (19:07 UTC)
In effect from
Feb 14, 2011, 11:00 AM EST
Expired
Feb 14, 2011, 6:00 PM EST
In force
7 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 19:08 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

Cape Canaveral, FL (KXMR), launched 12:00Z, 7.1 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 2011-02-13Temperature 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 2011-02-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -31 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1921 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
-31 m²/s²
0-3 km storm-relative helicity
43 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.

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.

&&

$$
2 follow-up statements
034 
WWUS82 KMLB 140011
RFWMLB

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

FLZ041-044>047-053-058-141-144-147-141200-
/O.CON.KMLB.FW.W.0009.110214T1600Z-110214T2300Z/
INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-SOUTHERN BREVARD-
OSCEOLA-OKEECHOBEE-COASTAL VOLUSIA-SOUTHERN LAKE-NORTHERN BREVARD-
711 PM EST SUN FEB 13 2011

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

A RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 6 PM EST
MONDAY. 

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.

&&

$$

FLZ054-059-064-141200-
/O.CON.KMLB.FW.A.0008.110214T1600Z-110214T2300Z/
INDIAN RIVER-ST. LUCIE-MARTIN-
711 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.

&&

$$

67
116 
WWUS82 KMLB 140941
RFWMLB

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MELBOURNE FL
441 AM EST MON FEB 14 2011

FLZ054-059-064-142300-
/O.UPG.KMLB.FW.A.0008.110214T1600Z-110214T2300Z/
/O.EXA.KMLB.FW.W.0009.110214T1600Z-110214T2300Z/
INDIAN RIVER-ST. LUCIE-MARTIN-
441 AM EST MON FEB 14 2011

...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 6 PM EST
THIS EVENING...

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 6 PM EST
THIS EVENING. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. 

THE VERY DRY AIR MASS ACROSS FLORIDA WILL REMAIN IN PLACE
TODAY...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....ESPECIALLY OVER THE INTERIOR.

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.

&&

$$

FLZ041-044>047-053-058-141-144-147-142300-
/O.CON.KMLB.FW.W.0009.110214T1600Z-110214T2300Z/
INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-SOUTHERN BREVARD-
OSCEOLA-OKEECHOBEE-COASTAL VOLUSIA-SOUTHERN LAKE-NORTHERN BREVARD-
441 AM EST MON FEB 14 2011

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

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

THE VERY DRY AIR MASS ACROSS FLORIDA WILL REMAIN IN PLACE
TODAY...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.

&&

$$

WEITLICH

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.