Alert archive / Florida / Red Flag Warnings in 2013

Red Flag Warning 4, NWS Melbourne, FL

March 5, 2013Osceola County, Florida

NWS Melbourne, FL issued this red flag warning at Mar 5, 2013, 3:54 AM EST for Osceola County, Florida. It took effect at Mar 5, 2013, 12:00 PM 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
Mar 5, 2013, 3:54 AM EST (08:54 UTC)
In effect from
Mar 5, 2013, 12:00 PM EST
Expired
Mar 5, 2013, 7:00 PM EST
In force
7 hr
Issued by
NWS Melbourne, FL

County Osceola County, FL

The radar

The Melbourne radar (KMLB), 49 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

Tampa Bay, FL (KTBW), launched 00:00Z, 8.9 hours before the alert went out and 129 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, Tampa Bay, FL at 00:00Z on 2013-03-05Temperature 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, Tampa Bay, FL at 00:00Z on 2013-03-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -44 square meters per square second.19395878Sfc1 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
2112 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
-44 m²/s²
0-3 km storm-relative helicity
15 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.

756 
WWUS82 KMLB 050854
RFWMLB

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MELBOURNE FL
354 AM EST TUE MAR 5 2013

FLZ053-060000-
/O.NEW.KMLB.FW.W.0004.130305T1700Z-130306T0000Z/
OSCEOLA-
354 AM EST TUE MAR 5 2013

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 7 PM EST THIS
EVENING FOR LONG DURATION OF RH VALUES LESS THAN 35 PERCENT...

* AFFECTED AREA...OSCEOLA.

* WIND...SOUTHWEST WINDS EXPECTED TO REMAIN AROUND 10 MPH WITH
  GUSTS TO 15 MPH.

* HUMIDITY...5 TO 7 HOURS OF CRITICAL RH BELOW 35 PERCENT WITH
  MINIMUM VALUES AROUND 25 PERCENT.

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. 
  OUTDOOR BURNING IS NOT RECOMMENDED.

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.

&&

$$

BOWEN
2 follow-up statements
364 
WWUS82 KMLB 050924
RFWMLB

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MELBOURNE FL
424 AM EST TUE MAR 5 2013

FLZ053-060000-
/O.NEW.KMLB.FW.A.0005.130306T1600Z-130307T0000Z/
/O.CON.KMLB.FW.W.0004.130305T1700Z-130306T0000Z/
OSCEOLA-
424 AM EST TUE MAR 5 2013

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 7 PM EST THIS
EVENING FOR LONG DURATION OF RH VALUES LESS THAN 35 PERCENT...

...FIRE WEATHER WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH
WEDNESDAY EVENING FOR 20 FOOT WIND SPEEDS 15 TO 20 MPH AND RELATIVE
HUMIDITY VALUES LESS THAN 35 PERCENT...

* AFFECTED AREA...OSCEOLA.

* WIND...SOUTHWEST WINDS EXPECTED TO REMAIN AROUND 10 MPH WITH 
  GUSTS TO 15 MPH.

* HUMIDITY...5 TO 7 HOURS OF CRITICAL RH BELOW 35 PERCENT WITH 
  MINIMUM VALUES AROUND 25 PERCENT.

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. 
  OUTDOOR BURNING IS NOT RECOMMENDED.

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 MEANS THAT CRITICAL FIRE WEATHER
CONDITIONS...LONG DURATIONS OF LOW RELATIVE HUMIDITY OR A
COMBINATION OF LOW RELATIVE HUMIDITY AND STRONG WINDS...ARE
POSSIBLE BETWEEN 24 AND 72 HOURS.

&&

$$

FLZ041-044>047-054-058-141-144-147-060000-
/O.NEW.KMLB.FW.A.0005.130306T1600Z-130307T0000Z/
INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-SOUTHERN BREVARD-
INDIAN RIVER-OKEECHOBEE-COASTAL VOLUSIA-SOUTHERN LAKE-
NORTHERN BREVARD-
424 AM EST TUE MAR 5 2013

...FIRE WEATHER WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH
WEDNESDAY EVENING FOR 20 FOOT WIND SPEEDS GREATER THAN 15 MPH AND
RELATIVE HUMIDITY VALUES LESS THAN 35 PERCENT...

* AFFECTED AREA... INLAND VOLUSIA... NORTHERN LAKE... ORANGE... 
  SEMINOLE... SOUTHERN BREVARD... INDIAN RIVER... OKEECHOBEE... 
  COASTAL VOLUSIA... SOUTHERN LAKE... NORTHERN BREVARD. 

* WIND...GUSTY WEST TO NORTHWEST WINDS AROUND 15 TO 20 MPH IN THE 
  AFTERNOON.

* HUMIDITY...5 TO 8 HOURS OF CRITICAL RH BELOW 35 PERCENT WITH 
  MINIMUM VALUES AROUND 25 PERCENT.

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. 
  OUTDOOR BURNING IS NOT RECOMMENDED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER
CONDITIONS...LONG DURATIONS OF LOW RELATIVE HUMIDITY OR A
COMBINATION OF LOW RELATIVE HUMIDITY AND STRONG WINDS...ARE
POSSIBLE BETWEEN 24 AND 72 HOURS.

&&

$$

BOWEN
817 
WWUS82 KMLB 052222
RFWMLB

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MELBOURNE FL
522 PM EST TUE MAR 5 2013

FLZ053-070000-
/O.UPG.KMLB.FW.A.0005.130306T1600Z-130307T0000Z/
/O.NEW.KMLB.FW.W.0005.130306T1600Z-130307T0000Z/
/O.CON.KMLB.FW.W.0004.000000T0000Z-130306T0000Z/
OSCEOLA-
522 PM EST TUE MAR 5 2013

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS EVENING
FOR OSCEOLA COUNTY FOR CRITICALLY LOW HUMIDITY AND DRY VEGETATION... 
...RED FLAG WARNING IN EFFECT FROM 11 AM TO 7 PM EST WEDNESDAY FOR
CRITICALLY LOW HUMIDITY...GUSTY WINDS AND DRY VEGETATION...

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 11 AM TO 7 PM EST WEDNESDAY.

* AFFECTED AREA...OSCEOLA.

* WIND...WEST TO NORTHWEST WINDS 15 TO 20 MPH WITH HIGHER AFTERNOON
  GUSTS.

* HUMIDITY...5 TO 7 HOURS OF CRITICAL RH BELOW 35 PERCENT WITH 
  MINIMUM VALUES AROUND 25 PERCENT.

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. A
  COUNTY BURN BAN IS IN EFFECT FOR OUTDOOR BURNING.

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>047-054-058-141-144-147-070000-
/O.UPG.KMLB.FW.A.0005.130306T1600Z-130307T0000Z/
/O.NEW.KMLB.FW.W.0005.130306T1600Z-130307T0000Z/
INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-SOUTHERN BREVARD-
INDIAN RIVER-OKEECHOBEE-COASTAL VOLUSIA-SOUTHERN LAKE-
NORTHERN BREVARD-
522 PM EST TUE MAR 5 2013

...RED FLAG WARNING IN EFFECT FROM 11 AM TO 7 PM EST WEDNESDAY FOR
CRITICALLY LOW HUMIDITY...GUSTY WINDS AND DRY VEGETATION...

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 11 AM TO 7 PM EST WEDNESDAY.

* WIND...WEST TO NORTHWEST WINDS AROUND 15 TO 20 MPH WITH HIGHER
  AFTERNOON GUSTS.

* HUMIDITY...5 TO 8 HOURS OF CRITICAL RH BELOW 35 PERCENT WITH 
  MINIMUM VALUES AROUND 25 PERCENT.

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY.
  OUTDOOR BURNING IS NOT RECOMMENDED.

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.

&&

$$

FLZ059-064-070000-
/O.NEW.KMLB.FW.W.0005.130306T1600Z-130307T0000Z/
ST. LUCIE-MARTIN-
522 PM EST TUE MAR 5 2013

...RED FLAG WARNING IN EFFECT FROM 11 AM TO 7 PM EST WEDNESDAY FOR
CRITICALLY LOW HUMIDITY...GUSTY WINDS AND DRY VEGETATION...

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 11 AM TO 7 PM EST WEDNESDAY. 

* AFFECTED AREA... ST. LUCIE... MARTIN.

* WIND...WEST TO NORTHWEST WINDS 15 TO 20 MPH WITH HIGHER AFTERNOON
  GUSTS.

* HUMIDITY...4 TO 6 HOURS OF CRITICAL RH BELOW 35 PERCENT WITH
  MINIMUM VALUES 25 TO 30 PERCENT.

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. 
  OUTDOOR BURNING IS NOT RECOMMENDED.

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.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 5, 4:24 AM ESTFire Weather WatchMLBLake, Okeechobee, Orange, Osceola, Seminole, Volusia13 hr
Mar 5, 3:04 PM ESTGale WarningMLB25 hr
Mar 5, 5:22 PM ESTRed Flag WarningMLBLake, Okeechobee, Orange, Osceola, Seminole, Volusia26 hr

Nearby

Red Flag Warnings in Florida, 2013Every red flag warning in 2013

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.