Alert archive / Alabama / Special Weather Statements in 2021

Special Weather Statement, NWS Mobile, AL

June 23, 2021Washington County, Alabama

NWS Mobile, AL issued this special weather statement at Jun 23, 2021, 4:55 PM CDT 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
Jun 23, 2021, 4:55 PM CDT (21:55 UTC)
Expired
Jun 23, 2021, 5:45 PM CDT
In force
50 min
Issued by
NWS Mobile, AL

County Washington County, AL

The radar

The Mobile radar (KMOB), 78 km from the middle of the area, began a volume at 21:59 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, 9.9 hours before the alert went out and 218 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 2021-06-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1906 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 2021-06-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -20 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
1906 J/kg
Mixed-layer CIN
-13 J/kg
Mixed-layer LCL
537 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
-20 m²/s²
0-3 km storm-relative helicity
7 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

787 
WWUS84 KMOB 232155
SPSMOB

Special Weather Statement
National Weather Service Mobile AL
455 PM CDT Wed Jun 23 2021
 
ALZ052-053-055-059-261-262-232245-
Clarke AL-Baldwin Inland AL-Monroe AL-Escambia AL-Washington AL-
Mobile Inland AL-
455 PM CDT Wed Jun 23 2021

...SCATTERED STRONG THUNDERSTORMS WILL AFFECT THE FOLLOWING 
COUNTIES...SOUTHWESTERN MONROE...NORTHEASTERN MOBILE...NORTHWESTERN 
BALDWIN...SOUTHERN WASHINGTON...SOUTHEASTERN CLARKE AND NORTHWESTERN 
ESCAMBIA COUNTIES UNTIL 545 PM CDT...

At 454 PM CDT, the strong thunderstorms were scattered along a line 
extending from 3 miles northeast of Citronelle to 4 miles northeast 
of Calvert to 7 miles northwest of Uriah, and moving southeast at 20 
mph.

Wind gusts of 40 to 50 mph will be possible with these storms.

Locations impacted include...
Citronelle, Stockton, McCullough, Deer Park, Uriah, Mount Vernon,
Calvert, McIntosh, I65 And CR 1, Movico, I65 And AL 21 and Poarch
Creek Reservation.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3100 8828 3128 8835 3134 8797 3149 8769
      3148 8750 3129 8740 3128 8742 3126 8743
      3126 8739 3116 8734 3096 8774
TIME...MOT...LOC 2154Z 297DEG 17KT 3113 8821 3120 8795 3138 8759 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 22, 7:24 PM CDTAreal Flood AdvisoryMOBMobile3 hr
Jun 23, 3:29 PM CDTSpecial Weather StatementMOBMobile31 min
Jun 23, 3:45 PM CDTSpecial Weather StatementMOBCovington30 min
Jun 23, 3:51 PM CDTSpecial Weather StatementMOBEscambia39 min
Jun 23, 4:41 PM CDTSpecial Weather StatementMOBMobile49 min
Jun 23, 5:22 PM CDTSpecial Weather StatementMOBMobile53 min
Jun 23, 5:29 PM CDTSevere Thunderstorm WarningMOBMobile46 min
Jun 23, 6:06 PM CDTAreal Flood AdvisoryMOBMobile3 hr
Jun 23, 6:14 PM CDTSpecial Weather StatementMOBMobile46 min
Jun 23, 6:38 PM CDTSpecial Weather StatementMOBEscambia37 min
Jun 23, 6:48 PM CDTSpecial Weather StatementMOBMobile42 min
Jun 23, 5:39 PM CDTSpecial Weather StatementMOBSanta Rosa51 min
Jun 22, 7:12 PM CDTFlash Flood WarningMOBStone4 hr
Jun 23, 5:15 PM CDTSpecial Weather StatementMOBPerry45 min
Jun 23, 6:15 PM CDTSpecial Weather StatementMOBGeorge45 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.