Alert archive / Alabama / Special Weather Statements in 2021

Special Weather Statement, NWS Mobile, AL

August 14, 2021Mobile County, Alabama

NWS Mobile, AL issued this special weather statement at Aug 14, 2021, 3:14 PM CDT for Mobile County, Alabama. It was in force for 46 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 14, 2021, 3:14 PM CDT (20:14 UTC)
Expired
Aug 14, 2021, 4:00 PM CDT
In force
46 min
Issued by
NWS Mobile, AL
Hail
0.00 in
Wind
40

County Mobile County, AL

The radar

The Mobile radar (KMOB), 26 km from the middle of the area, began a volume at 20:19 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, 8.2 hours before the alert went out and 136 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 2021-08-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 747 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 2021-08-14The 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
747 J/kg
Mixed-layer CIN
-59 J/kg
Mixed-layer LCL
1022 m above ground
0-6 km bulk shear
1 kt
0-1 km storm-relative helicity
7 m²/s²
0-3 km storm-relative helicity
34 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

533 
WWUS84 KMOB 142014
SPSMOB

Special Weather Statement
National Weather Service Mobile AL
314 PM CDT Sat Aug 14 2021
 
ALZ263-265-142100-
Mobile Coastal AL-Mobile Central AL-
314 PM CDT Sat Aug 14 2021

...Strong thunderstorms will impact portions of southwestern Mobile
County through 400 PM CDT...

At 314 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 3 miles northwest of Tillmans Corner to Bayou
La Batre. Movement was northwest at 10 mph.

HAZARD...Winds in excess of 40 mph.

SOURCE...Radar indicated.

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

Locations impacted include...
Tillmans Corner, Theodore, Grand Bay, Bayou La Batre, Coden and
Mobile Regional Airport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

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

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

&&

LAT...LON 3039 8829 3038 8831 3039 8831 3040 8834
      3040 8836 3039 8837 3040 8837 3079 8836
      3071 8815 3036 8817
TIME...MOT...LOC 2014Z 137DEG 9KT 3062 8821 3040 8823 

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

$$

MM

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 14, 1:02 PM CDTRip Current StatementMOBBaldwin, Mobile4 days
Aug 14, 1:02 PM CDTHigh Surf AdvisoryMOBBaldwin, Mobile57 hr
Aug 14, 2:16 PM CDTSpecial Weather StatementMOBBaldwin44 min
Aug 14, 4:13 PM CDTTropical Storm WatchMOBCovington, Escambia30 hr
Aug 14, 4:41 PM CDTSpecial Marine WarningMOB94 min
Aug 14, 4:46 PM CDTSpecial Marine WarningMOB56 min
Aug 14, 5:52 PM CDTSpecial Marine WarningMOB83 min
Aug 14, 6:28 PM CDTSpecial Weather StatementMOBButler47 min
Aug 14, 4:01 PM CDTSpecial Weather StatementMOBOkaloosa, Santa Rosa59 min
Aug 14, 4:18 PM CDTSpecial Weather StatementMOBEscambia57 min
Aug 14, 4:33 PM CDTSevere Thunderstorm WarningMOBEscambia, Santa Rosa42 min
Aug 14, 4:39 PM CDTSpecial Weather StatementMOBOkaloosa66 min
Aug 14, 4:49 PM CDTSpecial Weather StatementMOBEscambia56 min
Aug 14, 5:10 PM CDTAreal Flood AdvisoryMOBSanta Rosa3 hr

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.