Alert archive / Alabama / Special Weather Statements in 2021

Special Weather Statement, NWS Mobile, AL

July 5, 2021Washington County, Alabama

NWS Mobile, AL issued this special weather statement at Jul 5, 2021, 1:52 PM CDT for Washington County, Alabama. It was in force for 53 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 5, 2021, 1:52 PM CDT (18:52 UTC)
Expired
Jul 5, 2021, 2:45 PM CDT
In force
53 min
Issued by
NWS Mobile, AL

County Washington County, AL

The radar

The Mobile radar (KMOB), 69 km from the middle of the area, began a volume at 18:51 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, 6.9 hours before the alert went out and 204 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 2021-07-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1061 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 2021-07-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -19 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
1061 J/kg
Mixed-layer CIN
-29 J/kg
Mixed-layer LCL
611 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-19 m²/s²
0-3 km storm-relative helicity
-9 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

688 
WWUS84 KMOB 051852
SPSMOB

Special Weather Statement
National Weather Service Mobile AL
152 PM CDT Mon Jul 5 2021
 
ALZ052-053-261-262-051945-
Clarke AL-Baldwin Inland AL-Washington AL-Mobile Inland AL-
152 PM CDT Mon Jul 5 2021

...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...
NORTHEASTERN MOBILE...NORTHWESTERN BALDWIN...SOUTHEASTERN WASHINGTON
AND SOUTH CENTRAL CLARKE COUNTIES UNTIL 245 PM CDT...

At 152 PM CDT, the strong thunderstorm was located 11 miles east of
Calvert, or 21 miles north of Bay Minette, moving northwest at 15
mph.

Dime size hail and wind gusts of 40 to 50 mph will be possible with
this storm.

Locations impacted include...
Stockton, Mount Vernon, Calvert, McIntosh, Movico and I65 And AL 225.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3106 8820 3144 8805 3132 8778 3131 8778
      3130 8777 3130 8774 3129 8771 3092 8783
TIME...MOT...LOC 1852Z 114DEG 13KT 3119 8781 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 4, 7:02 PM CDTAreal Flood AdvisoryMOBBaldwin3 hr
Jul 4, 7:27 PM CDTAreal Flood AdvisoryMOBMobile3 hr
Jul 4, 8:16 PM CDTAreal Flood AdvisoryMOBMonroe3 hr
Jul 4, 8:43 PM CDTAreal Flood AdvisoryMOBConecuh3 hr
Jul 4, 8:44 PM CDTAreal Flood AdvisoryMOBMobile3 hr
Jul 5, 2:46 PM CDTSpecial Weather StatementMOBWashington44 min
Jul 5, 3:11 PM CDTSevere Thunderstorm WarningMOBMobile, Washington20 min
Jul 5, 6:10 PM CDTAreal Flood AdvisoryMOBBaldwin3 hr
Jul 5, 8:35 AM CDTAreal Flood AdvisoryMOBOkaloosa, Santa Rosa3 hr
Jul 5, 9:36 AM CDTFlash Flood WarningMOBOkaloosa, Santa Rosa5 hr
Jul 5, 11:12 AM CDTAreal Flood AdvisoryMOBEscambia, Santa Rosa3 hr
Jul 5, 12:32 PM CDTAreal Flood AdvisoryMOBEscambia3 hr
Jul 5, 2:07 PM CDTSpecial Weather StatementMOBGreene38 min
Jul 5, 4:25 PM CDTSevere Thunderstorm WarningMOBWayne37 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.