Alert archive / Florida / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 175, NWS Mobile, AL

July 31, 2021Escambia County, Florida

NWS Mobile, AL issued this severe thunderstorm warning at Jul 31, 2021, 6:07 PM CDT for Escambia County, Florida. It was in force for 38 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 31, 2021, 6:07 PM CDT (23:07 UTC)
Expired
Jul 31, 2021, 6:45 PM CDT
In force
38 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County Escambia County, FL

The radar

The Mobile radar (KMOB), 90 km from the middle of the area, began a volume at 23:10 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

Slidell Radar S, LA (KSIL), launched 12:00Z, 11.1 hours before the alert went out and 235 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, Slidell Radar S, LA at 12:00Z on 2021-07-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2352 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, Slidell Radar S, LA at 12:00Z on 2021-07-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -7 square meters per square second.1939Sfc1 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
2352 J/kg
Mixed-layer CIN
-40 J/kg
Mixed-layer LCL
1020 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
-7 m²/s²
0-3 km storm-relative helicity
16 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

634 
WUUS54 KMOB 312307
SVRMOB
FLC033-312345-
/O.NEW.KMOB.SV.W.0175.210731T2307Z-210731T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
607 PM CDT Sat Jul 31 2021

The National Weather Service in Mobile has issued a

* Severe Thunderstorm Warning for...
  Central Escambia County in northwestern Florida...

* Until 645 PM CDT.

* At 606 PM CDT, a severe thunderstorm was located over Molino, or 9
  miles north of Gonzalez, moving southwest at 10 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Molino.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3072 8746 3078 8732 3077 8730 3074 8731
      3072 8730 3071 8727 3066 8727 3064 8726
      3064 8724 3063 8726 3063 8724 3061 8726
      3060 8724 3056 8724
TIME...MOT...LOC 2306Z 025DEG 7KT 3072 8731 

HAIL...<.75IN
WIND...60MPH
 
$$
1 follow-up statement
385 
WWUS54 KMOB 312336
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
636 PM CDT Sat Jul 31 2021

FLC033-312346-
/O.EXP.KMOB.SV.W.0175.000000T0000Z-210731T2345Z/
Escambia FL-
636 PM CDT Sat Jul 31 2021

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL ESCAMBIA COUNTY WILL
EXPIRE AT 645 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However gusty
winds are still possible with this thunderstorm.

LAT...LON 3072 8746 3078 8732 3077 8730 3074 8731
      3072 8730 3071 8727 3066 8727 3064 8726
      3064 8724 3063 8726 3063 8724 3061 8726
      3060 8724 3056 8724
TIME...MOT...LOC 2336Z 025DEG 7KT 3067 8734 

$$

The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 31, 12:18 PM CDTHeat AdvisoryMOBEscambia, Okaloosa, Santa Rosa31 hr
Jul 31, 5:51 PM CDTSpecial Weather StatementMOBEscambia, Okaloosa, Santa Rosa39 min
Jul 31, 6:18 PM CDTSevere Thunderstorm WarningMOBSanta Rosa42 min
Jul 31, 6:31 PM CDTSpecial Weather StatementMOBOkaloosa44 min

Nearby

Severe Thunderstorm Warnings in Florida, 2021Every severe thunderstorm warning in 2021

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.