Alert archive / Alabama / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 166, NWS Mobile, AL

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

NWS Mobile, AL issued this severe thunderstorm warning at Jul 15, 2021, 7:12 PM CDT for Baldwin County, Clarke County, Monroe County, Alabama. It was in force for 48 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, 7:12 PM CDT (00:12 UTC)
Expired: Jul 15, 2021, 8:00 PM CDT
In force: 48 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

Counties Baldwin County, AL, Clarke County, AL, Monroe County, AL

The radar

The Mobile radar (KMOB), 95 km from the middle of the area, began a volume at 00:13 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, 0.2 hours before the alert went out and 217 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: 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.

038 
WUUS54 KMOB 160012
SVRMOB
ALC003-025-099-160100-
/O.NEW.KMOB.SV.W.0166.210716T0012Z-210716T0100Z/

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

The National Weather Service in Mobile has issued a

* Severe Thunderstorm Warning for...
  Southwestern Monroe County in south central Alabama...
  North central Baldwin County in southwestern Alabama...
  Southeastern Clarke County in southwestern Alabama...

* Until 800 PM CDT.

* At 712 PM CDT, a severe thunderstorm was located 8 miles west of
  Uriah, or 15 miles southwest of Frisco City, moving northwest at 15
  mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Frisco City and Uriah. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3165 8756 3136 8733 3135 8735 3133 8735
      3123 8756 3124 8762 3120 8762 3117 8768
      3138 8789 3141 8791 3141 8792 3142 8791
      3143 8791
TIME...MOT...LOC 0012Z 134DEG 11KT 3134 8764 

HAIL...0.88IN
WIND...60MPH
 
$$

1 follow-up statement

654 
WWUS54 KMOB 160052
SVSMOB

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

ALC003-025-099-160102-
/O.EXP.KMOB.SV.W.0166.000000T0000Z-210716T0100Z/
Monroe AL-Baldwin AL-Clarke AL-
752 PM CDT Thu Jul 15 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN MONROE...NORTH
CENTRAL BALDWIN AND SOUTHEASTERN CLARKE 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 3165 8756 3136 8733 3135 8735 3133 8735
      3123 8756 3124 8762 3120 8762 3117 8768
      3138 8789 3141 8791 3141 8792 3142 8791
      3143 8791
TIME...MOT...LOC 0052Z 134DEG 11KT 3141 8773 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 15, 7:19 PM CDT	Severe Thunderstorm Warning	MOB	Clarke, Monroe, Wilcox	41 min
Jul 15, 7:27 PM CDT	Areal Flood Advisory	MOB	Conecuh, Escambia, Monroe	3 hr
Jul 15, 8:09 PM CDT	Special Weather Statement	MOB	Clarke, Wilcox	66 min
Jul 15, 8:21 PM CDT	Areal Flood Advisory	MOB	Wilcox	3 hr
Jul 15, 8:36 PM CDT	Flash Flood Warning	MOB	Wilcox	6 hr
Jul 15, 10:24 PM CDT	Areal Flood Advisory	MOB	Choctaw	3 hr
Jul 15, 11:26 PM CDT	Areal Flood Advisory	MOB	Choctaw, Washington	3 hr
Jul 16, 10:17 AM CDT	Areal Flood Advisory	MOB	Baldwin	4 hr
Jul 16, 10:54 AM CDT	Flash Flood Warning	MOB	Baldwin	6 hr
Jul 16, 12:01 PM CDT	Areal Flood Advisory	MOB	Baldwin	3 hr
Jul 16, 12:23 PM CDT	Flash Flood Warning	MOB	Baldwin	3 hr
Jul 16, 1:41 PM CDT	Special Marine Warning	MOB		64 min
Jul 16, 3:04 PM CDT	Areal Flood Advisory	MOB	Clarke, Wilcox	3 hr

Nearby

Severe Thunderstorm Warnings in Alabama, 2021 Every 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.