Alert archive / Florida / Red Flag Warnings in 2011

Red Flag Warning 14, NWS Miami, FL

March 22, 2011Broward County, Florida

NWS Miami, FL issued this red flag warning at Mar 22, 2011, 3:32 AM EDT for Broward County, Florida. It took effect at Mar 22, 2011, 1:00 PM EDT. It was in force for 55 min. 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 22, 2011, 3:32 AM EDT (07:32 UTC)
In effect from
Mar 22, 2011, 1:00 PM EDT
Expired
Mar 22, 2011, 1:55 PM EDT
In force
55 min
Issued by
NWS Miami, FL

County Broward County, FL

The radar

The Miami radar (KAMX), 60 km from the middle of the area, began a volume at 07:31 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

Miami, FL (KMFL), launched 00:00Z, 7.5 hours before the alert went out and 40 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, Miami, FL at 00:00Z on 2011-03-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 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, Miami, FL at 00:00Z on 2011-03-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -18 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
1179 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
-18 m²/s²
0-3 km storm-relative helicity
-28 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.

006 
WWUS82 KMFL 220732
RFWMFL

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MIAMI FL
332 AM EDT TUE MAR 22 2011

FLZ071-230000-
/O.NEW.KMFL.FW.W.0014.110322T1700Z-110323T0000Z/
INLAND BROWARD-
332 AM EDT TUE MAR 22 2011

...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM
EDT THIS EVENING FOR INLAND BROWARD COUNTY FOR 4 OR MORE HOURS OF
BELOW 35 PERCENT RELATIVE HUMIDITIES AND ENERGY RELEASE COMPONENT OF
36...

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM EDT
THIS EVENING FOR INLAND BROWARD COUNTY.

TEMPERATURES IN THE MID 80S WITH DEW POINTS AROUND 80 THIS
AFTERNOON WILL ALLOW FOR THE RELATIVE HUMIDITIES TO FALL BELOW 35
PERCENT FOR 4 HOURS OR MORE. AT THE SAME TIME...THE ENERGY
RELEASE COMPONENT OF 36 IS FORECAST FOR INLAND BROWARD COUNTY
TODAY. THEREFORE...A RED FLAG WARNING HAS BEEN ISSUED FOR INLAND
BROWARD COUNTY FOR THIS AFTERNOON INTO EARLY THIS EVENING.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

&&

$$

BAXTER
2 follow-up statements
817 
WWUS82 KMFL 221416 CCA
RFWMFL

URGENT - FIRE WEATHER MESSAGE...CORRECTED
NATIONAL WEATHER SERVICE MIAMI FL
1013 AM EDT TUE MAR 22 2011

FLZ071-230000-
/O.COR.KMFL.FW.W.0014.110322T1700Z-110323T0000Z/
INLAND BROWARD-
1013 AM EDT TUE MAR 22 2011

...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM
EDT THIS EVENING FOR INLAND BROWARD COUNTY FOR 4 OR MORE HOURS OF
BELOW 35 PERCENT RELATIVE HUMIDITIES AND ENERGY RELEASE COMPONENT OF
36...

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM EDT
THIS EVENING FOR INLAND BROWARD COUNTY.

TEMPERATURES IN THE MID 80S WITH DEW POINTS AROUND 50 THIS
AFTERNOON WILL ALLOW FOR THE RELATIVE HUMIDITIES TO FALL BELOW 35
PERCENT FOR 4 HOURS OR MORE. AT THE SAME TIME...THE ENERGY RELEASE
COMPONENT OF 36 IS FORECAST FOR INLAND BROWARD COUNTY TODAY.
THEREFORE...A RED FLAG WARNING HAS BEEN ISSUED FOR INLAND BROWARD
COUNTY FOR THIS AFTERNOON INTO EARLY THIS EVENING.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

&&

$$

BAXTER
375 
WWUS82 KMFL 221755
RFWMFL

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MIAMI FL
155 PM EDT TUE MAR 22 2011

...RED FLAG WARNING CANCELLED ...

FLZ071-221900-
/O.CAN.KMFL.FW.W.0014.000000T0000Z-110323T0000Z/
INLAND BROWARD-
155 PM EDT TUE MAR 22 2011

...RED FLAG WARNING IS CANCELLED FOR INLAND BROWARD COUNTY FOR
4 OR MORE HOURS OF BELOW 35 PERCENT RELATIVE HUMIDITIES AND
ENERGY RELEASE COMPONENT OF 36...

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

THE RELATIVE HUMIDITIES ACROSS THE INTERIOR PORTIONS OF BROWARD
COUNTY HAVE REMAINED ABOVE 35 PERCENT AND ARE NOW NOT EXPECTED TO
GO BELOW 35 PERCENT FOR 4 OR MORE HOURS AS THE DEW POINTS HAVE
REMAINED HIGHER THAN PREVIOUSLY EXPECTED. THEREFORE...THE RED FLAG
WARNING HAS BEEN CANCELLED.

$$

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.