Alert archive / Florida / Red Flag Warnings in 2007

Red Flag Warning 25, NWS Melbourne, FL

March 13, 20074 counties in Florida

NWS Melbourne, FL issued this red flag warning at Mar 13, 2007, 4:01 AM EDT for 4 counties in Florida. It took effect at Mar 13, 2007, 1:00 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 13, 2007, 4:01 AM EDT (08:01 UTC)
In effect from
Mar 13, 2007, 1:00 PM EDT
Expired
Mar 13, 2007, 7:00 PM EDT
In force
6 hr
Issued by
NWS Melbourne, FL

Counties Lake County, FL, Okeechobee County, FL, Orange County, FL, Osceola County, FL

The radar

The Melbourne radar (KMLB), 61 km from the middle of the area, began a volume at 08:01 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, 8.0 hours before the alert went out and 82 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 2007-03-13Temperature 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 00:00Z on 2007-03-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -20 square meters per square second.193958Sfc1 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
1412 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
-20 m²/s²
0-3 km storm-relative helicity
73 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.

000 
WWUS82 KMLB 130801
RFWMLB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
401 AM EDT TUE MAR 13 2007

...A RED FLAG WARNING IS IN EFFECT FROM 1 PM TO 7 PM FOR LAKE...
WESTERN ORANGE...OSCEOLA AND OKEECHOBEE COUNTIES FOR LONG
DURATIONS OF LOW RELATIVE HUMIDITY...

FLZ044-045-053-058-144-132245-
/O.NEW.KMLB.FW.W.0025.070313T1700Z-070313T2300Z/
NORTHERN LAKE-ORANGE-OSCEOLA-OKEECHOBEE-SOUTHERN LAKE-
401 AM EDT TUE MAR 13 2007

...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 7 PM
EDT THIS EVENING...

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 1 PM THIS AFTERNOON TO 7 PM EDT
THIS EVENING. 

SURFACE HIGH PRESSURE NORTHEAST OF THE AREA AND A RIDGE OF HIGH
PRESSURE ALOFT WILL CONTINUE TO PRODUCE DRY CONDITIONS ACROSS
CENTRAL FLORIDA. MINIMUM RELATIVE HUMIDITIES ARE ARE EXPECTED TO
DIP BELOW 35 PERCENT FOR 3 TO 5 HOUR DURATIONS ACROSS WELL
INTERIOR SECTIONS FROM OKEECHOBEE AND OSCEOLA COUNTIES TO WESTERN
ORANGE AND LAKE COUNTIES. SOUTHEAST WINDS TO 10 MPH WILL BECOME
EAST SOUTHEAST WITH THE PASSAGE OF THE EAST COAST SEA BREEZE LATE
TODAY.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS...
LONG DURATIONS OF LOW RELATIVE HUMIDITY OR A COMBINATION OF LOW
RELATIVE HUMIDITY AND STRONG WINDS...ARE EITHER OCCURRING NOW...
OR ARE FORECAST TO OCCUR IN THE NEXT 24 HOURS.

$$

MRV

Nearby

Red Flag Warnings in Florida, 2007Every red flag warning in 2007

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.