Alert archive / Florida / Special Weather Statements in 2021

Special Weather Statement, NWS Mobile, AL

July 31, 2021Santa Rosa County, Florida

NWS Mobile, AL issued this special weather statement at Jul 31, 2021, 9:18 PM CDT for Santa Rosa County, Florida. It was in force for 57 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, 9:18 PM CDT (02:18 UTC)
Expired
Jul 31, 2021, 10:15 PM CDT
In force
57 min
Issued by
NWS Mobile, AL

County Santa Rosa County, FL

The radar

The Eglin Afb radar (KEVX), 107 km from the middle of the area, began a volume at 02:22 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 00:00Z, 2.3 hours before the alert went out and 257 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 00:00Z on 2021-08-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1557 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 00:00Z on 2021-08-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -5 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
1557 J/kg
Mixed-layer CIN
-60 J/kg
Mixed-layer LCL
1088 m above ground
0-6 km bulk shear
1 kt
0-1 km storm-relative helicity
-5 m²/s²
0-3 km storm-relative helicity
49 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

414 
WWUS84 KMOB 010218
SPSMOB

Special Weather Statement
National Weather Service Mobile AL
918 PM CDT Sat Jul 31 2021
 
FLZ203>205-010315-
Okaloosa Inland FL-Santa Rosa Coastal FL-Santa Rosa Inland FL-
918 PM CDT Sat Jul 31 2021

...A CLUSTER OF STRONG THUNDERSTORMS WILL AFFECT THE FOLLOWING 
COUNTIES...WESTERN OKALOOSA AND CENTRAL SANTA ROSA COUNTIES UNTIL 
1015 PM CDT...

At 917 PM CDT, the strong thunderstorms were located along a line
extending from near Pea Ridge to 12 miles east of Roeville, and
moving east at 10 mph.

Winds of 30 to 40 mph will be possible with these storms.

Locations impacted include...
Pace, Milton, Bagdad, Baker, Pea Ridge, Roeville, Floridatown and
Point Baker.

LAT...LON 3044 8710 3052 8710 3058 8715 3058 8718
      3055 8717 3055 8720 3056 8720 3078 8727
      3089 8670 3051 8658 3046 8692 3051 8702
      3052 8699 3058 8698 3060 8702 3057 8700
      3054 8704 3045 8707 3044 8709
TIME...MOT...LOC 0217Z 290DEG 10KT 3062 8710 3063 8679 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 31, 7:04 PM CDTSpecial Marine WarningMOB86 min
Jul 31, 7:24 PM CDTSpecial Weather StatementMOBEscambia66 min
Jul 31, 7:43 PM CDTSpecial Marine WarningMOB92 min
Jul 31, 8:10 PM CDTSpecial Weather StatementMOBEscambia65 min
Jul 31, 10:22 PM CDTSpecial Marine WarningMOB57 min
Jul 31, 11:18 PM CDTSpecial Marine WarningMOB47 min
Jul 31, 11:58 PM CDTSpecial Marine WarningMOB46 min
Aug 1, 6:14 PM CDTSevere Thunderstorm WarningMOBBaldwin, Mobile26 min
Jul 31, 7:00 PM CDTSpecial Weather StatementMOBSanta Rosa45 min
Jul 31, 7:14 PM CDTSpecial Weather StatementMOBOkaloosa61 min
Jul 31, 8:16 PM CDTSpecial Weather StatementMOBEscambia44 min
Jul 31, 8:27 PM CDTSpecial Weather StatementMOBSanta Rosa48 min
Jul 31, 9:40 PM CDTAreal Flood AdvisoryMOBOkaloosa2 hr
Aug 1, 3:31 PM CDTSpecial Weather StatementMOBJackson44 min
Aug 1, 3:51 PM CDTSpecial Weather StatementMOBPerry39 min
Aug 1, 4:26 PM CDTSevere Thunderstorm WarningMOBGeorge, Perry, Stone18 min
Aug 1, 4:39 PM CDTSpecial Weather StatementMOBWayne51 min
Aug 1, 4:48 PM CDTSpecial Weather StatementMOBStone57 min

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.