Alert archive / Alabama / Special Weather Statements in 2021

Special Weather Statement, NWS Mobile, AL

September 1, 2021Escambia County, Alabama

NWS Mobile, AL issued this special weather statement at Sep 1, 2021, 7:21 PM CDT for Escambia County, Alabama. It was in force for 54 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
Sep 1, 2021, 7:21 PM CDT (00:21 UTC)
Expired
Sep 1, 2021, 8:15 PM CDT
In force
54 min
Issued by
NWS Mobile, AL
Hail
0.00 in
Wind
40

County Escambia County, AL

The radar

The Eglin Afb radar (KEVX), 96 km from the middle of the area, began a volume at 00:22 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

Birmingham, AL (KBMX), launched 00:00Z, 0.4 hours before the alert went out and 234 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, Birmingham, AL at 00:00Z on 2021-09-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 241 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, Birmingham, AL at 00:00Z on 2021-09-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 37 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
241 J/kg
Mixed-layer CIN
-96 J/kg
Mixed-layer LCL
1030 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
37 m²/s²
0-3 km storm-relative helicity
65 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

634 
WWUS84 KMOB 020021
SPSMOB

Special Weather Statement
National Weather Service Mobile AL
721 PM CDT Wed Sep 1 2021
 
ALZ059-060-FLZ201-203-205-020115-
Covington AL-Escambia AL-Okaloosa Inland FL-Escambia Inland FL-
Santa Rosa Inland FL-
721 PM CDT Wed Sep 1 2021

...Strong thunderstorms will impact portions of Escambia, southern
Covington, northern Okaloosa, northern Santa Rosa and north central
Escambia Counties through 815 PM CDT...

At 721 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Brewton to 9 miles northwest of Laurel
Hill to 5 miles north of Samson. Movement was southeast at 30 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...
Crestview, Brewton, Florala, Century, Flomaton, Baker, East Brewton,
Jay, Laurel Hill, Lockhart, Pollard, Riverview and I65 And AL 113.

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 3100 8619 3099 8639 3070 8639 3076 8716
      3095 8729 3101 8738 3125 8741 3120 8677
      3119 8676 3120 8674 3118 8673 3118 8672
      3119 8671 3119 8664 3128 8619
TIME...MOT...LOC 0021Z 320DEG 26KT 3113 8709 3107 8656 3119 8608 

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

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 1, 7:03 PM CDTFlash Flood WarningMOBClarke, Wilcox4 hr
Sep 1, 7:31 PM CDTSpecial Weather StatementMOBWashington44 min
Sep 1, 7:35 PM CDTSevere Thunderstorm WarningMOBEscambia40 min
Sep 1, 7:45 PM CDTAreal Flood AdvisoryMOBCovington, Escambia3 hr
Sep 1, 8:14 PM CDTSpecial Weather StatementMOBEscambia46 min
Sep 1, 8:19 PM CDTSpecial Weather StatementMOBWashington41 min
Sep 1, 9:06 PM CDTAreal Flood AdvisoryMOBBaldwin, Clarke, Escambia, Monroe3 hr
Sep 1, 9:12 PM CDTSpecial Weather StatementMOBBaldwin63 min
Sep 1, 7:34 PM CDTSevere Thunderstorm WarningMOBWayne41 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.