Alert archive / Florida / Red Flag Warnings in 2013

Red Flag Warning 3, NWS Miami, FL

March 13, 2013Broward County, Collier County, Palm Beach County, Florida

NWS Miami, FL issued this red flag warning at Mar 13, 2013, 3:31 AM EDT for Broward County, Collier County, Palm Beach County, Florida. It took effect at Mar 13, 2013, 12:00 PM EDT. It was in force for 8 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, 2013, 3:31 AM EDT (07:31 UTC)
In effect from
Mar 13, 2013, 12:00 PM EDT
Expired
Mar 13, 2013, 8:00 PM EDT
In force
8 hr
Issued by
NWS Miami, FL

Counties Broward County, FL, Collier County, FL, Palm Beach County, FL

The radar

The Miami radar (KAMX), 84 km from the middle of the area, began a volume at 07:32 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 71 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 2013-03-13Temperature 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, Miami, FL at 00:00Z on 2013-03-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 71 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
1076 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
71 m²/s²
0-3 km storm-relative helicity
77 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.

121 
WWUS82 KMFL 130731
RFWMFL

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MIAMI FL
331 AM EDT WED MAR 13 2013

FLZ063-066>072-140000-
/O.NEW.KMFL.FW.W.0003.130313T1600Z-130314T0000Z/
GLADES-HENDRY-INLAND PALM BEACH-METRO PALM BEACH-COASTAL COLLIER-
INLAND COLLIER-INLAND BROWARD-METRO BROWARD-
331 AM EDT WED MAR 13 2013

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS
EVENING FOR FOR GLADES, HENDRY, COLLIER, INLAND AND METRO PALM
BEACH, AND INLAND AND METRO BROWARD COUNTIES FOR RELATIVE
HUMIDITIES BELOW 35 PERCENT AND 20 FOOT WINDS OF AROUND 15 MPH...

THE NATIONAL WEATHER SERVICE IN MIAMI HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS
EVENING. 

* AFFECTED AREA...GLADES, HENDRY, COLLIER, INLAND AND METRO PALM
  BEACH, AND INLAND AND METRO BROWARD COUNTIES.

* WIND...20 FOOT WINDS OF AROUND 15 MPH.

* HUMIDITY...MINIMUM RELATIVE HUMIDITIES IN THE 20S ARE FORECAST
  FOR THE WARNING AREA, EXCEPT LOWER 30S OVER METRO PALM BEACH AND
  METRO BROWARD.

* ENERGY RELEASE COMPONENT (ERC)...29 TO 36, HIGHEST BROWARD
  COUNTY.

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. 
  OUTDOOR BURNING IS NOT RECOMMENDED.

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.

&&

$$

GREGORIA
2 follow-up statements
789 
WWUS82 KMFL 131350
RFWMFL

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MIAMI FL
950 AM EDT WED MAR 13 2013

FLZ063-066>072-140000-
/O.CON.KMFL.FW.W.0003.130313T1600Z-130314T0000Z/
GLADES-HENDRY-INLAND PALM BEACH-METRO PALM BEACH-COASTAL COLLIER-
INLAND COLLIER-INLAND BROWARD-METRO BROWARD-
950 AM EDT WED MAR 13 2013

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING
FOR RELATIVE HUMIDITY BELOW 35 PERCENT AND 20 FOOT WINDS IN EXCESS
OF 15 MPH FOR FIRE WEATHER ZONES 063...066...067...068...069...070...071
AND 072...

* AFFECTED AREA...FIRE WEATHER ZONES 063...066...067...068... 
  069...070...071 AND 072. 

* WIND...20 FOOT WINDS OF BETWEEN 15 AND 20 MPH.

* HUMIDITY...MINIMUM RELATIVE HUMIDITIES IN THE 20S ARE 
  FORECAST FOR THE WARNING AREA... EXCEPT LOWER 30S OVER METRO 
  PALM BEACH AND METRO BROWARD. 

* ENERGY RELEASE COMPONENT (ERC)...29 TO 36... HIGHEST BROWARD 
  COUNTY.

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. 
  OUTDOOR BURNING IS NOT RECOMMENDED.

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.

&&

$$
765 
WWUS82 KMFL 140007
RFWMFL

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MIAMI FL
807 PM EDT WED MAR 13 2013

FLZ063-066>072-140115-
/O.EXP.KMFL.FW.W.0003.000000T0000Z-130314T0000Z/
GLADES-HENDRY-INLAND PALM BEACH-METRO PALM BEACH-COASTAL COLLIER-
INLAND COLLIER-INLAND BROWARD-METRO BROWARD-
807 PM EDT WED MAR 13 2013

...RED FLAG WARNING HAS EXPIRED FOR FIRE WEATHER ZONES
063...066...067...068...069...070...071 AND 072...

WITH RELATIVE HUMIDITY RISING BACK TO LEVELS WELL ABOVE CRITICAL
THRESHOLDS AND SUSTAINED WINDS BETWEEN 10 AND 15 MPH...HAVE
ALLOWED THE RED FLAG WARNING TO EXPIRE.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 13, 4:16 AM EDTSmall Craft AdvisoryMFL43 hr

Nearby

Red Flag Warnings in Florida, 2013Every red flag warning in 2013

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.