Alert archive / Florida / Special Weather Statements in 2021

Special Weather Statement, NWS Mobile, AL

July 30, 2021Escambia County, Florida

NWS Mobile, AL issued this special weather statement at Jul 30, 2021, 4:52 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 30, 2021, 4:52 PM CDT (21:52 UTC)
Expired
Jul 30, 2021, 5:30 PM CDT
In force
38 min
Issued by
NWS Mobile, AL

County Escambia County, FL

The radar

The Mobile radar (KMOB), 86 km from the middle of the area, began a volume at 21:55 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, 9.9 hours before the alert went out and 220 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 2021-07-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1204 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 2021-07-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 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
1204 J/kg
Mixed-layer CIN
-67 J/kg
Mixed-layer LCL
1075 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
23 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

691 
WWUS84 KMOB 302152
SPSMOB

Special Weather Statement
National Weather Service Mobile AL
452 PM CDT Fri Jul 30 2021
 
ALZ266-FLZ202-302230-
Baldwin Coastal AL-Escambia Coastal FL-
452 PM CDT Fri Jul 30 2021

...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...
SOUTHEASTERN BALDWIN AND SOUTH CENTRAL ESCAMBIA COUNTIES UNTIL 530 PM
CDT...

At 452 PM CDT, the strong thunderstorm was located over Myrtle Grove,
or 4 miles west of West Pensacola, moving southwest at 10 mph.

Winds of 30 to 40 mph will be possible with this storm.

Locations impacted include...
Lillian and Myrtle Grove. 

LAT...LON 3030 8749 3031 8744 3038 8757 3038 8748
      3044 8749 3047 8743 3045 8740 3037 8744
      3043 8734 3047 8742 3049 8737 3041 8726
      3037 8732 3037 8729 3032 8732 3029 8747
TIME...MOT...LOC 2152Z 040DEG 7KT 3043 8735 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 29, 7:44 PM CDTSevere Thunderstorm WarningMOBBaldwin46 min
Jul 29, 7:50 PM CDTSpecial Marine WarningMOB85 min
Jul 30, 4:11 AM CDTSpecial Marine WarningMOB94 min
Jul 30, 4:39 AM CDTExcessive Heat WarningMOBBaldwin, Mobile, Washington38 hr
Jul 30, 9:42 AM CDTSpecial Marine WarningMOB93 min
Jul 30, 11:15 AM CDTSpecial Marine WarningMOB45 min
Jul 29, 7:05 PM CDTSpecial Weather StatementMOBEscambia40 min
Jul 29, 7:47 PM CDTSpecial Weather StatementMOBEscambia43 min
Jul 29, 7:04 PM CDTSevere Thunderstorm WarningMOBPerry41 min
Jul 30, 4:39 AM CDTHeat AdvisoryMOBWayne29 hr

Nearby

Special Weather Statements in Florida, 2021Every special weather statement 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.