Alert archive / Alabama / Special Weather Statements in 2021

Special Weather Statement, NWS Mobile, AL

August 10, 2021Mobile County, Alabama

NWS Mobile, AL issued this special weather statement at Aug 10, 2021, 11:30 AM CDT for Mobile County, Alabama. It was in force for 45 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
Aug 10, 2021, 11:30 AM CDT (16:30 UTC)
Expired
Aug 10, 2021, 12:15 PM CDT
In force
45 min
Issued by
NWS Mobile, AL
Hail
0.00 in
Wind
30

County Mobile County, AL

The radar

The Mobile radar (KMOB), 33 km from the middle of the area, began a volume at 16:34 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, 4.5 hours before the alert went out and 145 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 2021-08-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3054 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 2021-08-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -16 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
3054 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
686 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-16 m²/s²
0-3 km storm-relative helicity
-5 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

363 
WWUS84 KMOB 101630
SPSMOB

Special Weather Statement
National Weather Service Mobile AL
1130 AM CDT Tue Aug 10 2021
 
ALZ265-101715-
Mobile Coastal AL-
1130 AM CDT Tue Aug 10 2021

...A strong thunderstorm will impact portions of south central Mobile
County through 1215 PM CDT...

At 1130 AM CDT, Doppler radar was tracking a strong thunderstorm near
Coden, or near Bayou La Batre. This storm was nearly stationary.

HAZARD...Winds in excess of 30 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects.

Locations impacted include...
Bayou La Batre and Coden. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3034 8815 3032 8819 3036 8819 3036 8821
      3037 8822 3036 8825 3032 8826 3037 8826
      3037 8824 3039 8830 3050 8827 3052 8820
      3053 8818 3050 8810 3038 8811 3034 8813
      3035 8814 3031 8814
TIME...MOT...LOC 1630Z 193DEG 4KT 3038 8819 

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...30 MPH

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 10, 12:00 PM CDTSpecial Weather StatementMOBMobile45 min
Aug 10, 12:14 PM CDTSevere Thunderstorm WarningMOBMobile46 min
Aug 10, 2:51 PM CDTSpecial Weather StatementMOBBaldwin39 min
Aug 10, 5:22 PM CDTSpecial Weather StatementMOBCrenshaw38 min
Aug 10, 6:11 PM CDTSpecial Weather StatementMOBBaldwin34 min
Aug 10, 11:48 AM CDTSpecial Weather StatementMOBStone42 min
Aug 10, 12:31 PM CDTSpecial Weather StatementMOBStone44 min
Aug 10, 12:59 PM CDTSpecial Weather StatementMOBGeorge46 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.