Alert archive / Alabama / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 174, NWS Mobile, AL

July 29, 2021Baldwin County, Alabama; Escambia County, Florida

NWS Mobile, AL issued this severe thunderstorm warning at Jul 29, 2021, 7:44 PM CDT for Baldwin County, Alabama; Escambia County, Florida. It was in force for 46 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 29, 2021, 7:44 PM CDT (00:44 UTC)
Expired: Jul 29, 2021, 8:30 PM CDT
In force: 46 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Baldwin County, AL, Escambia County, FL

The radar

The Mobile radar (KMOB), 84 km from the middle of the area, began a volume at 00:45 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 00:00Z, 0.7 hours before the alert went out and 226 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: 1533 J/kg
Mixed-layer CIN: -68 J/kg
Mixed-layer LCL: 1067 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: -12 m²/s²
0-3 km storm-relative helicity: 41 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

570 
WUUS54 KMOB 300044
SVRMOB
ALC003-FLC033-300130-
/O.NEW.KMOB.SV.W.0174.210730T0044Z-210730T0130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
744 PM CDT Thu Jul 29 2021

The National Weather Service in Mobile has issued a

* Severe Thunderstorm Warning for...
  Southeastern Baldwin County in southwestern Alabama...
  South central Escambia County in northwestern Florida...

* Until 830 PM CDT.

* At 744 PM CDT, severe thunderstorms were located along a line
  extending from Gonzalez to 3 miles west of Ensley to near West
  Pensacola, moving west at 15 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  West Pensacola, Ensley, Gonzalez, Lillian, Myrtle Grove and
  Elberta.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3049 8766 3068 8761 3065 8730 3064 8726
      3064 8725 3063 8726 3063 8725 3062 8726
      3060 8724 3053 8725 3043 8723 3033 8755
TIME...MOT...LOC 0044Z 078DEG 13KT 3060 8732 3052 8732 3046 8730 

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

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 29, 7:50 PM CDT	Special Marine Warning	MOB		85 min
Jul 30, 4:11 AM CDT	Special Marine Warning	MOB		94 min
Jul 30, 4:39 AM CDT	Excessive Heat Warning	MOB	Baldwin, Mobile, Washington	38 hr
Jul 30, 9:42 AM CDT	Special Marine Warning	MOB		93 min
Jul 30, 11:15 AM CDT	Special Marine Warning	MOB		45 min
Jul 29, 7:05 PM CDT	Special Weather Statement	MOB	Escambia	40 min
Jul 29, 7:47 PM CDT	Special Weather Statement	MOB	Escambia	43 min
Jul 30, 4:52 PM CDT	Special Weather Statement	MOB	Escambia	38 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2021 Severe Thunderstorm Warnings in Florida, 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.