Alert archive / Alabama / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 167, NWS Mobile, AL

July 15, 2021Clarke County, Monroe County, Wilcox County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Jul 15, 2021, 7:19 PM CDT for Clarke County, Monroe County, Wilcox County, Alabama. It was in force for 41 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 15, 2021, 7:19 PM CDT (00:19 UTC)
Expired
Jul 15, 2021, 8:00 PM CDT
In force
41 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Hail
0.88 in
Wind
60.0 mph

Counties Clarke County, AL, Monroe County, AL, Wilcox County, AL

The radar

The Mobile radar (KMOB), 145 km from the middle of the area, began a volume at 00:19 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

Birmingham, AL (KBMX), launched 00:00Z, 0.3 hours before the alert went out and 172 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 2021-07-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1139 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 2021-07-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 2 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
1139 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
1445 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
2 m²/s²
0-3 km storm-relative helicity
0 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

414 
WUUS54 KMOB 160019
SVRMOB
ALC025-099-131-160100-
/O.NEW.KMOB.SV.W.0167.210716T0019Z-210716T0100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
719 PM CDT Thu Jul 15 2021

The National Weather Service in Mobile has issued a

* Severe Thunderstorm Warning for...
  North central Monroe County in south central Alabama...
  East central Clarke County in southwestern Alabama...
  South central Wilcox County in south central Alabama...

* Until 800 PM CDT.

* At 718 PM CDT, two newer severe thunderstorms were located over 
  north central Monroe County, AL moving northwest at 10 mph.

  HAZARD...60 mph wind gusts and nickel size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Monroeville, Frisco City, Peterman, Excel, Beatrice and
  Vredenburgh.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3190 8727 3164 8712 3164 8714 3162 8714
      3137 8735 3174 8765
TIME...MOT...LOC 0018Z 143DEG 7KT 3160 8733 

HAIL...0.88IN
WIND...60MPH
 
$$
1 follow-up statement
024 
WWUS54 KMOB 160052 RRA
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
752 PM CDT Thu Jul 15 2021

ALC025-099-131-160102-
/O.EXP.KMOB.SV.W.0167.000000T0000Z-210716T0100Z/
Monroe AL-Clarke AL-Wilcox AL-
752 PM CDT Thu Jul 15 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL MONROE...EAST
CENTRAL CLARKE AND SOUTH CENTRAL WILCOX COUNTIES WILL EXPIRE AT 800
PM CDT...
                
The storm which prompted the warning has weakened below severe
limits. Therefore, the warning will be allowed to expire.

LAT...LON 3190 8727 3164 8712 3164 8714 3162 8714
      3137 8735 3174 8765
TIME...MOT...LOC 0052Z 143DEG 7KT 3165 8738 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 15, 7:12 PM CDTSevere Thunderstorm WarningMOBBaldwin, Clarke, Monroe48 min
Jul 15, 7:27 PM CDTAreal Flood AdvisoryMOBConecuh, Escambia, Monroe3 hr
Jul 15, 8:09 PM CDTSpecial Weather StatementMOBClarke, Wilcox66 min
Jul 15, 8:21 PM CDTAreal Flood AdvisoryMOBWilcox3 hr
Jul 15, 8:36 PM CDTFlash Flood WarningMOBWilcox6 hr
Jul 15, 10:24 PM CDTAreal Flood AdvisoryMOBChoctaw3 hr
Jul 15, 11:26 PM CDTAreal Flood AdvisoryMOBChoctaw, Washington3 hr
Jul 16, 10:17 AM CDTAreal Flood AdvisoryMOBBaldwin4 hr
Jul 16, 10:54 AM CDTFlash Flood WarningMOBBaldwin6 hr
Jul 16, 12:01 PM CDTAreal Flood AdvisoryMOBBaldwin3 hr
Jul 16, 12:23 PM CDTFlash Flood WarningMOBBaldwin3 hr
Jul 16, 1:41 PM CDTSpecial Marine WarningMOB64 min
Jul 16, 3:04 PM CDTAreal Flood AdvisoryMOBClarke, Wilcox3 hr

Nearby

Severe Thunderstorm Warnings in Alabama, 2021Every severe thunderstorm warning 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.