Alert archive / Florida / Red Flag Warnings in 2012

Red Flag Warning 19, NWS Melbourne, FL

October 29, 20126 counties in Florida

NWS Melbourne, FL issued this red flag warning at Oct 29, 2012, 7:24 PM EDT for 6 counties in Florida. It took effect at Oct 30, 2012, 12:00 PM EDT. 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
Oct 29, 2012, 7:24 PM EDT (23:24 UTC)
In effect from
Oct 30, 2012, 12:00 PM EDT
Expired
Oct 30, 2012, 7:00 PM EDT
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 23:25 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, 11.4 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 2012-10-29Temperature 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 2012-10-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -22 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
737 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
-22 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.

265 
WWUS82 KMLB 292324
RFWMLB

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MELBOURNE FL
724 PM EDT MON OCT 29 2012

FLZ041-044>047-053-054-058-059-141-144-147-310000-
/O.EXP.KMLB.FW.W.0018.000000T0000Z-121029T2300Z/
/O.UPG.KMLB.FW.A.0017.121030T1600Z-121031T0000Z/
/O.NEW.KMLB.FW.W.0019.121030T1600Z-121031T0000Z/
INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-SOUTHERN BREVARD-
OSCEOLA-INDIAN RIVER-OKEECHOBEE-ST. LUCIE-COASTAL VOLUSIA-
SOUTHERN LAKE-NORTHERN BREVARD-
724 PM EDT MON OCT 29 2012

...RED FLAG WARNING IN EFFECT FROM NOON TO 8 PM EDT TUESDAY FOR
FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR ALL OF EAST CENTRAL
FLORIDA...

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM NOON TO 8 PM EDT TUESDAY. 

* AFFECTED AREAS...VOLUSIA...LAKE...ORANGE...SEMINOLE...BREVARD...
  OSCEOLA...INDIAN RIVER... OKEECHOBEE...ST. LUCIE.

* WIND...NORTHWEST WINDS OF 15 TO 20 MPH AND GUSTY ARE EXPECTED 
  DURING THE AFTERNOON.

* HUMIDITY...CRITICALLY LOW HUMIDITIES OF 20 TO 25 PERCENT IS
  FORECAST FOR SEVERAL HOURS DURING THE AFTERNOON.

* 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.

&&

$$

FLZ064-310000-
/O.EXP.KMLB.FW.W.0018.000000T0000Z-121029T2300Z/
/O.NEW.KMLB.FW.W.0019.121030T1600Z-121031T0000Z/
MARTIN-
724 PM EDT MON OCT 29 2012

...RED FLAG WARNING IN EFFECT FROM NOON TO 8 PM EDT TUESDAY FOR
FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR ALL OF EAST CENTRAL
FLORIDA...

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM NOON TO 8 PM EDT TUESDAY. 

* AFFECTED AREA...MARTIN.

* WIND...WINDS OF 15 TO 20 MPH AND GUSTY ARE EXPECTED DURING THE 
  AFTERNOON. 

* HUMIDITY...CRITICALLY LOW RELATIVE HUMIDITIES OF 30 TO 35 PERCENT
  IS FORECAST FOR SEVERAL HOURS DURING THE AFTERNOON.

* 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.

&&

$$

MOSES
2 follow-up statements
651 
WWUS82 KMLB 300646
RFWMLB

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MELBOURNE FL
246 AM EDT TUE OCT 30 2012

FLZ058-059-064-300800-
/O.CAN.KMLB.FW.W.0019.121030T1600Z-121031T0000Z/
OKEECHOBEE-ST. LUCIE-MARTIN-
246 AM EDT TUE OCT 30 2012

...THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS CANCELLED THE RED
FLAG WARNING...

RED FLAG CRITERIA IS NOT EXPECTED TO BE REACHED IN OKEECHOBEE...SAINT
LUCIE AND MARTIN COUNTIES TODAY...HOWEVER A COUPLE OF HOURS OF LOW
RH WILL OCCUR AT MID AFTERNOON WITH NEAR 30 PERCENT HUMIDITY AND
20 FOOT WINDS OF AROUND 10 TO 15 MPH.

$$

FLZ041-044>047-053-054-141-144-147-302300-
/O.EXT.KMLB.FW.W.0019.121030T1600Z-121030T2300Z/
INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-SOUTHERN BREVARD-
OSCEOLA-INDIAN RIVER-COASTAL VOLUSIA-SOUTHERN LAKE-
NORTHERN BREVARD-
246 AM EDT TUE OCT 30 2012

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 7 PM EDT THIS
EVENING FOR WINDS AND CRITICALLY LOW HUMIDITY...

* AFFECTED AREAS...VOLUSIA...LAKE...ORANGE...SEMINOLE... 
  BREVARD...OSCEOLA...INDIAN RIVER... OKEECHOBEE...ST. LUCIE. 

* WIND...NORTHWEST WINDS OF 15 TO 20 MPH ARE EXPECTED DURING THE
  AFTERNOON.

* HUMIDITY...CRITICALLY LOW HUMIDITIES OF 25 TO 35 PERCENT IS
  FORECAST FOR SEVERAL HOURS OR GREATER DURING THE AFTERNOON.

* 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.

&&

$$

JP
349 
WWUS82 KMLB 302315
RFWMLB

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MELBOURNE FL
715 PM EDT TUE OCT 30 2012

FLZ041-044>047-053-054-141-144-147-310015-
/O.EXP.KMLB.FW.W.0019.000000T0000Z-121030T2300Z/
INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-SOUTHERN BREVARD-
OSCEOLA-INDIAN RIVER-COASTAL VOLUSIA-SOUTHERN LAKE-
NORTHERN BREVARD-
715 PM EDT TUE OCT 30 2012

...RED FLAG WARNING HAS EXPIRED...

RELATIVE HUMIDITY VALUES HAVE INCREASED ABOVE CRITICAL LEVELS AND
WINDS HAVE SUBSIDED ACROSS THE REGION. 

SEVERAL HOURS OF LOW RELATIVE HUMIDITY ARE EXPECTED FROM JUST
WEST OF INTERSTATE 95 WEST ACROSS THE ENTIRE REGION OF EAST
CENTRAL FLORIDA ON WEDNESDAY. HOWEVER... THE 20 FOOT WINDS ARE
FORECAST TO BE LESS THAN 15 MPH AND ERC VALUES ARE EXPECTED TO BE
LESS THAN 35.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 29, 3:20 AM EDTLake Wind AdvisoryMLBLake, Okeechobee, Orange, Osceola, Seminole, Volusia15 hr
Oct 29, 10:12 AM EDTRip Current StatementMLBVolusia12 hr
Oct 29, 10:12 AM EDTHigh Surf AdvisoryMLB12 hr

Nearby

Red Flag Warnings in Florida, 2012Every red flag warning in 2012

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.