Alert archive / Florida / Red Flag Warnings in 2011

Red Flag Warning 12, NWS Melbourne, FL

March 26, 20115 counties in Florida

NWS Melbourne, FL issued this red flag warning at Mar 26, 2011, 4:51 AM EDT for 5 counties in Florida. It took effect at Mar 26, 2011, 12:00 PM EDT. 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
Mar 26, 2011, 4:51 AM EDT (08:51 UTC)
In effect from
Mar 26, 2011, 12:00 PM EDT
Expired
Mar 26, 2011, 6:02 PM EDT
In force
6 hr
Issued by
NWS Melbourne, FL

Counties Lake County, FL, Orange County, FL, Osceola County, FL, Seminole County, FL, Volusia County, FL

The radar

The Melbourne radar (KMLB), 86 km from the middle of the area, began a volume at 08:57 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 81 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 2011-03-26Temperature 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 00:00Z on 2011-03-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 106 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
1501 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
106 m²/s²
0-3 km storm-relative helicity
82 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.

639 
WWUS82 KMLB 260851
RFWMLB

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MELBOURNE FL
451 AM EDT SAT MAR 26 2011

FLZ041-044>046-053-144-262300-
/O.NEW.KMLB.FW.W.0012.110326T1600Z-110326T2300Z/
INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-OSCEOLA-
SOUTHERN LAKE-
451 AM EDT SAT MAR 26 2011

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 7 PM EDT THIS
EVENING...

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 7 PM EDT THIS
EVENING. 

LONG DURATIONS OF LOW RELATIVE HUMIDITY AND LOW FUEL MOISTURE
WILL CREATE DANGEROUS FIRE WEATHER CONDITIONS IN THE RED FLAG
WARNING AREA TODAY.

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.

&&

$$
2 follow-up statements
361 
WWUS82 KMLB 261858
RFWMLB

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MELBOURNE FL
258 PM EDT SAT MAR 26 2011

FLZ041-044>046-053-144-262300-
/O.NEW.KMLB.FW.A.0010.110327T1800Z-110327T2300Z/
/O.CON.KMLB.FW.W.0012.000000T0000Z-110326T2300Z/
INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-OSCEOLA-
SOUTHERN LAKE-
258 PM EDT SAT MAR 26 2011

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM EDT THIS
EVENING...
...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH
SUNDAY EVENING...

LONG DURATIONS OF LOW RELATIVE HUMIDITY AND LOW FUEL MOISTURE
WILL CREATE DANGEROUS FIRE WEATHER CONDITIONS IN THE RED FLAG
WARNING AREA TODAY.

THE COMBINATION OF LOW AFTERNOON RELATIVE HUMIDITY AND INCREASING
SOUTHWEST WINDS...HIGH DISPERSION...AND A GRADUALLY INCREASING
ENERGY RELEASE COMPONENT (ERC) WILL INCREASE THE FIRE DANGER
ACROSS EAST CENTRAL FLORIDA ON SUNDAY 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.

&&

$$

FLZ141-262300-
/O.NEW.KMLB.FW.A.0010.110327T1800Z-110327T2300Z/
COASTAL VOLUSIA-
258 PM EDT SAT MAR 26 2011

...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH
SUNDAY EVENING...

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A FIRE
WEATHER WATCH...WHICH IS IN EFFECT FROM SUNDAY AFTERNOON THROUGH
SUNDAY EVENING. 

THE COMBINATION OF LOW AFTERNOON RELATIVE HUMIDITY AND INCREASING
SOUTHWEST WINDS...HIGH DISPERSION...AND A GRADUALLY INCREASING
ENERGY RELEASE COMPONENT (ERC) WILL INCREASE THE FIRE DANGER
ACROSS EAST CENTRAL FLORIDA ON SUNDAY AFTERNOON.

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.

&&

$$
493 
WWUS82 KMLB 262202
RFWMLB

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MELBOURNE FL
602 PM EDT SAT MAR 26 2011

FLZ041-044>046-053-144-270900-
/O.CAN.KMLB.FW.W.0012.000000T0000Z-110326T2300Z/
/O.CON.KMLB.FW.A.0010.110327T1800Z-110327T2300Z/
INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-OSCEOLA-
SOUTHERN LAKE-
602 PM EDT SAT MAR 26 2011

...RED FLAG WARNING IS CANCELLED...

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON
THROUGH SUNDAY EVENING...

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS CANCELLED THE RED
FLAG WARNING FOR TODAY. A FIRE WEATHER WATCH REMAINS IN EFFECT
FROM SUNDAY AFTERNOON THROUGH SUNDAY EVENING.

THE COMBINATION OF LOW AFTERNOON RELATIVE HUMIDITY AND INCREASING
SOUTHWEST WINDS...HIGH DISPERSION...AND A GRADUALLY INCREASING
ENERGY RELEASE COMPONENT (ERC) WILL INCREASE THE FIRE DANGER
ACROSS EAST CENTRAL FLORIDA ON SUNDAY AFTERNOON.

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.

&&

$$

FLZ141-270900-
/O.CON.KMLB.FW.A.0010.110327T1800Z-110327T2300Z/
COASTAL VOLUSIA-
602 PM EDT SAT MAR 26 2011

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON
THROUGH SUNDAY EVENING...

A FIRE WEATHER WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON
THROUGH SUNDAY EVENING. 

THE COMBINATION OF LOW AFTERNOON RELATIVE HUMIDITY AND INCREASING
SOUTHWEST WINDS...HIGH DISPERSION...AND A GRADUALLY INCREASING
ENERGY RELEASE COMPONENT (ERC) WILL INCREASE THE FIRE DANGER
ACROSS EAST CENTRAL FLORIDA ON SUNDAY AFTERNOON.

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

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 26, 2:58 PM EDTFire Weather WatchMLBLake, Orange, Osceola, Seminole, Volusia14 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.