Alert archive / Alabama / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 180, NWS Mobile, AL

August 1, 2021Conecuh County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Aug 1, 2021, 9:18 PM CDT for Conecuh County, Alabama. It was in force for 57 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: Aug 1, 2021, 9:18 PM CDT (02:18 UTC)
Expired: Aug 1, 2021, 10:15 PM CDT
In force: 57 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Conecuh County, AL

The radar

The Eglin Afb radar (KEVX), 133 km from the middle of the area, began a volume at 02:21 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, 2.3 hours before the alert went out and 200 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: 941 J/kg
Mixed-layer CIN: -57 J/kg
Mixed-layer LCL: 1260 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 6 m²/s²
0-3 km storm-relative helicity: 15 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

187 
WUUS54 KMOB 020218
SVRMOB
ALC035-020315-
/O.NEW.KMOB.SV.W.0180.210802T0218Z-210802T0315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
918 PM CDT Sun Aug 1 2021

The National Weather Service in Mobile has issued a

* Severe Thunderstorm Warning for...
  Central Conecuh County in south central Alabama...

* Until 1015 PM CDT.

* At 918 PM CDT, a severe thunderstorm was located 6 miles northwest
  of Evergreen, moving southeast at 10 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Evergreen and I65 And US 84. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3126 8694 3126 8698 3151 8713 3162 8696
      3140 8671
TIME...MOT...LOC 0218Z 323DEG 10KT 3151 8700 

HAIL...<.75IN
WIND...60MPH
 
$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 1, 7:03 PM CDT	Special Weather Statement	MOB	Choctaw	42 min
Aug 1, 8:12 PM CDT	Special Weather Statement	MOB	Conecuh	63 min
Aug 1, 8:17 PM CDT	Special Weather Statement	MOB	Choctaw	43 min
Aug 1, 8:39 PM CDT	Severe Thunderstorm Warning	MOB	Choctaw	51 min
Aug 1, 8:50 PM CDT	Special Weather Statement	MOB	Wilcox	55 min
Aug 1, 9:02 PM CDT	Special Weather Statement	MOB	Choctaw	43 min
Aug 1, 9:06 PM CDT	Areal Flood Advisory	MOB	Choctaw	3 hr
Aug 1, 9:35 PM CDT	Flash Flood Warning	MOB	Choctaw	6 hr
Aug 1, 9:51 PM CDT	Severe Thunderstorm Warning	MOB	Wilcox	31 min
Aug 1, 10:21 PM CDT	Special Weather Statement	MOB	Wilcox	54 min
Aug 1, 10:39 PM CDT	Special Weather Statement	MOB	Monroe	51 min
Aug 1, 10:40 PM CDT	Special Weather Statement	MOB	Conecuh	65 min
Aug 2, 2:23 PM CDT	Special Weather Statement	MOB	Conecuh	37 min
Aug 2, 2:59 PM CDT	Special Weather Statement	MOB	Mobile	46 min
Aug 2, 3:04 PM CDT	Special Weather Statement	MOB	Escambia	26 min
Aug 2, 3:10 PM CDT	Areal Flood Advisory	MOB	Mobile	2 hr
Aug 2, 3:29 PM CDT	Special Weather Statement	MOB	Crenshaw	31 min
Aug 2, 3:32 PM CDT	Special Marine Warning	MOB		43 min
Aug 2, 3:42 PM CDT	Special Weather Statement	MOB	Mobile	48 min
Aug 2, 3:47 PM CDT	Special Weather Statement	MOB	Crenshaw	43 min
Aug 2, 4:32 PM CDT	Areal Flood Advisory	MOB	Covington	118 min
Aug 2, 5:37 PM CDT	Special Marine Warning	MOB		83 min

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.