Alert archive / Florida / Red Flag Warnings in 2007

Red Flag Warning 22, NWS Melbourne, FL

March 7, 20076 counties in Florida

NWS Melbourne, FL issued this red flag warning at Mar 7, 2007, 3:08 AM EST for 6 counties in Florida. It took effect at Mar 7, 2007, 12:00 PM EST. 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 7, 2007, 3:08 AM EST (08:08 UTC)
In effect from
Mar 7, 2007, 12:00 PM EST
Expired
Mar 7, 2007, 6:00 PM EST
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 08:07 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, 8.1 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 2007-03-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLLFCEL10008507005003002001001 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 2007-03-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -36 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
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1258 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
-36 m²/s²
0-3 km storm-relative helicity
41 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 070808
RFWMLB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
308 AM EST WED MAR 7 2007


FLZ041-044>046-053-144-081000-
/O.NEW.KMLB.FW.W.0022.070307T1700Z-070307T2300Z/
/O.NEW.KMLB.FW.A.0016.070308T1700Z-070308T2300Z/
INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-OSCEOLA-
SOUTHERN LAKE-
308 AM EST WED MAR 7 2007

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 6 PM EST THIS
AFTERNOON...
...FIRE WEATHER WATCH IN EFFECT THURSDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 6 PM EST THIS
AFTERNOON. IN ADDITION...A FIRE WEATHER WATCH HAS ALSO BEEN ISSUED
FOR THURSDAY AFTERNOON.

DESPITE A SOUTH TO SOUTHEAST WIND OF 5 TO 10 MPH...MODIFICATION
OF THE DRY AIRMASS WILL BE VERY SLOW TO OCCUR. LONG DURATIONS OF
CRITICAL RH VALUES ARE EXPECTED AGAIN TODAY WITH 4 TO 6 HOURS
BELOW 35%. MINIMUM RH VALUES WILL NOT BE AS LOW AS THE PREVIOUS
COUPLE OF DAYS BUT MAY DIP BELOW 30%.

LONG DURATIONS OF CRITICALLY LOW RELATIVE HUMIDITY ARE ALSO A
POSSIBILITY THURSDAY WITH NORTHERLY WINDS TRANSPORTING DRIER AIR
DOWN THE SPINE OF THE PENINSULA. CONDITIONS ARE EXPECTED TO
IMPROVE DURING THE AFTERNOON...ESPECIALLY ACROSS EASTERN PORTIONS
OF THE AREA...AS THE EAST COAST SEA BREEZE DEVELOPS.

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.

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.

$$

FLZ058-072300-
/O.NEW.KMLB.FW.W.0022.070307T1700Z-070307T2300Z/
OKEECHOBEE-
308 AM EST WED MAR 7 2007

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

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

DESPITE A SOUTH TO SOUTHEAST WIND OF 5 TO 10 MPH...MODIFICATION
OF THE DRY AIRMASS WILL BE VERY SLOW TO OCCUR. LONG DURATIONS OF
CRITICAL RH VALUES ARE EXPECTED AGAIN TODAY WITH AROUND 4 HOURS
BELOW 35%. MINIMUM RH VALUES WILL NOT BE AS LOW AS THE PREVIOUS
COUPLE OF DAYS BUT MAY DIP BELOW 30% IN SPOTS.

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.

$$


KELLY/HIRSCH
1 follow-up statement
000 
WWUS82 KMLB 072305
RFWMLB

RED FLAG WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
605 PM EST WED MAR 7 2007

FLZ041-044>046-053-144-081030-
/O.EXP.KMLB.FW.W.0022.000000T0000Z-070307T2300Z/
/O.CON.KMLB.FW.A.0016.070308T1700Z-070308T2300Z/
INLAND VOLUSIA-NORTHERN LAKE-ORANGE-SEMINOLE-OSCEOLA-
SOUTHERN LAKE-
605 PM EST WED MAR 7 2007

...FIRE WEATHER WATCH REMAINS IN EFFECT THURSDAY AFTERNOON...
...RED FLAG WARNING HAS EXPIRED FOR TODAY...

THE RED FLAG WARNING IS NO LONGER IN EFFECT FOR TODAY. A FIRE WEATHER
WATCH REMAINS IN EFFECT THURSDAY AFTERNOON.

LONG DURATIONS OF CRITICALLY LOW RELATIVE HUMIDITY ARE POSSIBLE
THURSDAY AFTERNOON WITH NORTHERLY WINDS TRANSPORTING DRIER AIR
DOWN THE SPINE OF THE PENINSULA. CONDITIONS ARE EXPECTED TO
IMPROVE DURING THE AFTERNOON...ESPECIALLY ACROSS EASTERN PORTIONS
OF THE AREA...AS THE EAST COAST SEA BREEZE DEVELOPS.

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.

$$

FLZ058-080015-
/O.EXP.KMLB.FW.W.0022.000000T0000Z-070307T2300Z/
OKEECHOBEE-
605 PM EST WED MAR 7 2007

...RED FLAG WARNING HAS EXPIRED FOR TODAY...

THE RED FLAG WARNING IS NO LONGER IN EFFECT. 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 7, 3:08 AM ESTFire Weather WatchMLBLake, Orange, Osceola, Seminole, Volusia24 hr

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.