Alert archive / Florida / Red Flag Warnings in 2020

Red Flag Warning 2, NWS Mobile, AL

May 11, 2020Escambia County, Okaloosa County, Santa Rosa County, Florida

NWS Mobile, AL issued this red flag warning at May 11, 2020, 8:38 AM CDT for Escambia County, Okaloosa County, Santa Rosa County, Florida. It took effect at May 11, 2020, 1:00 PM CDT. 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
May 11, 2020, 8:38 AM CDT (13:38 UTC)
In effect from
May 11, 2020, 1:00 PM CDT
Expired
May 11, 2020, 7:00 PM CDT
In force
6 hr
Issued by
NWS Mobile, AL

Counties Escambia County, FL, Okaloosa County, FL, Santa Rosa County, FL

The radar

The Eglin Afb radar (KEVX), 102 km from the middle of the area, began a volume at 13:42 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

Eglin AFB/Valpar, FL (KVPS), launched 12:00Z, 1.6 hours before the alert went out and 50 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, Eglin AFB/Valpar, FL at 12:00Z on 2020-05-11Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Eglin AFB/Valpar, FL at 12:00Z on 2020-05-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -1 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
2475 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
-1 m²/s²
0-3 km storm-relative helicity
24 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

047 
WWUS84 KMOB 111338
RFWMOB

URGENT - FIRE WEATHER MESSAGE
National Weather Service Mobile AL
838 AM CDT Mon May 11 2020

...A RED FLAG WARNING IS NOW IN EFFECT FOR THE WESTERN FLORIDA 
PANHANDLE THIS AFTERNOON DUE A COMBINATION OF LOW HUMIDITY, HIGH 
ERC, AND GUSTY WINDS...

FLZ201>206-120000-
/O.UPG.KMOB.FW.A.0001.200511T1800Z-200512T0000Z/
/O.NEW.KMOB.FW.W.0002.200511T1800Z-200512T0000Z/
Escambia Inland-Escambia Coastal-Santa Rosa Inland-
Santa Rosa Coastal-Okaloosa Inland-Okaloosa Coastal-
838 AM CDT Mon May 11 2020

...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 7 PM
CDT THIS EVENING FOR THE WESTERN FLORIDA PANHANDLE DUE TO A
COMBINATION OF LOW HUMIDITY, HIGH ERC, AND GUSTY WINDS.

The National Weather Service in Mobile has issued a Red Flag
Warning, which is in effect from 1 PM this afternoon to 7 PM CDT
this evening. The Fire Weather Watch is no longer in effect. 

* WIND...North wind around 10 mph with gusts around 15 to 20 
  mph. 

* HUMIDITY...Relative humidity values will range between 20 to 
  25 percent.

* 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 can
contribute to extreme fire behavior.

&&

$$

Nearby

Red Flag Warnings in Florida, 2020Every red flag warning in 2020

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.