Alert archive / Florida / Red Flag Warnings in 2008

Red Flag Warning 39, NWS Melbourne, FL

October 29, 20086 counties in Florida

NWS Melbourne, FL issued this red flag warning at Oct 29, 2008, 4:47 AM EDT for 6 counties in Florida. It took effect at Oct 29, 2008, 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
Oct 29, 2008, 4:47 AM EDT (08:47 UTC)
In effect from
Oct 29, 2008, 12:00 PM EDT
Expired
Oct 29, 2008, 6:00 PM EDT
In force
6 hr
Issued by
NWS Melbourne, FL

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

The radar

The Melbourne radar (KMLB), 67 km from the middle of the area, began a volume at 08:52 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, 8.8 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 00:00Z on 2008-10-29Temperature 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 00:00Z on 2008-10-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 11 square meters per square second.1939587897117Sfc1 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
2219 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
11 m²/s²
0-3 km storm-relative helicity
-1 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 290847
RFWMLB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
447 AM EDT WED OCT 29 2008

...A VERY DRY AIRMASS WILL REMAIN IN PLACE ACROSS CENTRAL FLORIDA
TODAY RESULTING IN A LONG DURATION OF CRITICAL RELATIVE HUMIDITY
ACROSS MUCH OF THE AREA...

FLZ041-044>046-053-141-144-292200-
/O.UPG.KMLB.FW.A.0035.081029T1600Z-081029T2200Z/
/O.NEW.KMLB.FW.W.0039.081029T1600Z-081029T2200Z/
INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-OSCEOLA-
COASTAL VOLUSIA-SOUTHERN LAKE-
447 AM EDT WED OCT 29 2008

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 6 PM EDT THIS
AFTERNOON...

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 6 PM EDT THIS
AFTERNOON. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. 

AN EXTREMELY DRY AIRMASS WILL REMAIN IN PLACE TODAY...HOWEVER
NORTHWEST WINDS WILL BE MUCH LIGHTER THAN ON TUESDAY. A LONG
DURATION OF RELATIVE HUMIDITY OF 25 TO 30 PERCENT IS LIKELY.

DRY AIR WILL LINGER ACROSS NORTHERN INTERIOR SECTIONS OF EAST
CENTRAL FLORIDA TOMORROW AFTERNOON WITH A SHORT DURATION OF
RELATIVE HUMIDITY NEAR 35 PERCENT POSSIBLE.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
LOW RELATIVE HUMIDITY AND WARM TEMPERATURES WILL CREATE A HIGH
WILDFIRE THREAT.

$$

FLZ047-058-147-292200-
/O.NEW.KMLB.FW.W.0039.081029T1600Z-081029T2200Z/
SOUTHERN BREVARD-OKEECHOBEE-NORTHERN BREVARD-
447 AM EDT WED OCT 29 2008

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 6 PM EDT THIS
AFTERNOON...

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 6 PM EDT THIS
AFTERNOON. 

A DRY AIRMASS WILL REMAIN IN PLACE TODAY...HOWEVER NORTHWEST
WINDS WILL BE MUCH LIGHTER THAN ON TUESDAY. A LONG DURATION OF
RELATIVE HUMIDITY OF 30 TO 35 PERCENT EXPECTED TODAY...EXCEPT
ALONG THE IMMEDIATE COAST WHERE SOME MOISTURE RECOVERY MAY OCCUR
THIS AFTERNOON...RESULTING IN SEVERAL HOURS OF RELATIVE HUMIDITY
NEAR 35 PERCENT. HIGHER RELATIVE HUMIDITY LIKELY TOMORROW AS WINDS
BECOME ONSHORE.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
LOW RELATIVE HUMIDITY AND WARM TEMPERATURES WILL CREATE A HIGH
WILDFIRE THREAT.

$$

Nearby

Red Flag Warnings in Florida, 2008Every red flag warning in 2008

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.