Alert archive / Alabama / Special Weather Statements in 2021

Special Weather Statement, NWS Mobile, AL

July 8, 2021Monroe County, Alabama

NWS Mobile, AL issued this special weather statement at Jul 8, 2021, 1:47 PM CDT for Monroe County, Alabama. It was in force for 43 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 8, 2021, 1:47 PM CDT (18:47 UTC)
Expired
Jul 8, 2021, 2:30 PM CDT
In force
43 min
Issued by
NWS Mobile, AL

County Monroe County, AL

The radar

The Mobile radar (KMOB), 154 km from the middle of the area, began a volume at 18:50 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

Birmingham, AL (KBMX), launched 12:00Z, 6.8 hours before the alert went out and 172 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, Birmingham, AL at 12:00Z on 2021-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 72 joules per kilogram.LCLLFCEL10008507005003002001001 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, Birmingham, AL at 12:00Z on 2021-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 10 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
72 J/kg
Mixed-layer CIN
-62 J/kg
Mixed-layer LCL
758 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
10 m²/s²
0-3 km storm-relative helicity
45 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

478 
WWUS84 KMOB 081847
SPSMOB

Special Weather Statement
National Weather Service Mobile AL
147 PM CDT Thu Jul 8 2021
 
ALZ055-056-081930-
Monroe AL-Conecuh AL-
147 PM CDT Thu Jul 8 2021

...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...
NORTHEASTERN MONROE AND NORTH CENTRAL CONECUH COUNTIES UNTIL 230 PM
CDT...

At 146 PM CDT, the strong thunderstorm was located 9 miles northwest
of Peterman, or 10 miles north of Monroeville, moving east at 25 mph.

Wind gusts of 40 to 50 mph will be possible with this storm.

Locations impacted include...
Peterman and Beatrice. 

LAT...LON 3170 8690 3154 8692 3148 8701 3161 8751
      3177 8747 3177 8694
TIME...MOT...LOC 1846Z 273DEG 23KT 3168 8739 

$$

Black

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 8, 2:46 PM CDTSpecial Weather StatementMOBButler44 min
Jul 8, 3:24 PM CDTSpecial Weather StatementMOBCrenshaw51 min
Jul 8, 4:20 PM CDTSpecial Weather StatementMOBMobile40 min
Jul 8, 4:33 PM CDTSpecial Weather StatementMOBClarke42 min
Jul 8, 5:08 PM CDTSpecial Weather StatementMOBEscambia52 min
Jul 8, 5:14 PM CDTSevere Thunderstorm WarningMOBEscambia31 min
Jul 8, 5:52 PM CDTSpecial Weather StatementMOBCovington38 min

Nearby

Special Weather Statements in Alabama, 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.