Alert archive / Alabama / Special Weather Statements in 2021

Special Weather Statement, NWS Mobile, AL

December 10, 2021Washington County, Alabama

NWS Mobile, AL issued this special weather statement at Dec 10, 2021, 11:10 AM CST for Washington County, Alabama. It was in force for 50 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: Dec 10, 2021, 11:10 AM CST (17:10 UTC)
Expired: Dec 10, 2021, 12:00 PM CST
In force: 50 min
Issued by: NWS Mobile, AL
Hail: 0.00 in
Wind: 30

County Washington County, AL

The radar

The Mobile radar (KMOB), 48 km from the middle of the area, began a volume at 17:10 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, 5.2 hours before the alert went out and 168 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1447 J/kg
Mixed-layer CIN: -11 J/kg
Mixed-layer LCL: 562 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 111 m²/s²
0-3 km storm-relative helicity: 172 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 5.9

Open this sounding in Storm Lab

The text

As transmitted.

018 
WWUS84 KMOB 101710
SPSMOB

Special Weather Statement
National Weather Service Mobile AL
1110 AM CST Fri Dec 10 2021
 
ALZ052-261-101800-
Washington AL-Mobile Inland AL-
1110 AM CST Fri Dec 10 2021

...A strong thunderstorm will impact portions of northwestern Mobile
and southeastern Washington Counties through NOON CST...

At 1109 AM CST, National Weather Service doppler radar indicated a
strong thunderstorm 8 miles northwest of Gulfcrest, or 8 miles west
of Citronelle, moving northeast at 25 mph.

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...
Citronelle.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

&&

LAT...LON 3103 8843 3111 8842 3128 8816 3124 8801
      3109 8802 3100 8837
TIME...MOT...LOC 1709Z 236DEG 24KT 3105 8836 

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.

Issued	Product	Office	Counties	Lasted
Dec 9, 8:37 PM CST	Areal Flood Advisory	MOB	Mobile	3 hr
Dec 9, 9:38 PM CST	Special Weather Statement	MOB	Mobile	52 min
Dec 9, 10:34 PM CST	Areal Flood Advisory	MOB	Baldwin	3 hr
Dec 9, 11:17 PM CST	Dense Fog Advisory	MOB	Baldwin, Mobile	10 hr
Dec 9, 11:34 PM CST	Flash Flood Warning	MOB	Baldwin	6 hr
Dec 10, 6:23 AM CST	River Flood Warning	MOB	Baldwin	25 hr
Dec 10, 1:19 PM CST	Dense Fog Advisory	MOB	Baldwin, Mobile	19 hr
Dec 10, 1:19 PM CST	Marine Dense Fog Advisory	MOB		22 hr
Dec 10, 2:21 PM CST	Small Craft Advisory	MOB		42 hr
Dec 10, 12:01 AM CST	Areal Flood Advisory	MOB	Escambia, Santa Rosa	3 hr
Dec 10, 1:16 AM CST	Special Weather Statement	MOB	Santa Rosa	44 min
Dec 10, 2:05 AM CST	Areal Flood Advisory	MOB	Okaloosa	3 hr

Nearby

Special Weather Statements in Alabama, 2021 Every 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.