Alert archive / Florida / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 112, NWS Mobile, AL

April 24, 2021Escambia County, Santa Rosa County, Florida; Baldwin County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Apr 24, 2021, 7:01 PM CDT for Escambia County, Santa Rosa County, Florida; Baldwin County, Alabama. It was in force for 15 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
Apr 24, 2021, 7:01 PM CDT (00:01 UTC)
Expired
Apr 24, 2021, 7:16 PM CDT
In force
15 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Baldwin County, AL, Escambia County, FL, Santa Rosa County, FL

The radar

The Mobile radar (KMOB), 66 km from the middle of the area, began a volume at 00:00 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 24, 1:17 PM CDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 0.0 hours before the alert went out and 213 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, Slidell Radar S, LA at 00:00Z on 2021-04-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1720 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, Slidell Radar S, LA at 00:00Z on 2021-04-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 63 square meters per square second.1939587897117Sfc1 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
1720 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
1108 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
63 m²/s²
0-3 km storm-relative helicity
108 m²/s²
Significant tornado parameter
0.4
Supercell composite
2.6

Open this sounding in Storm Lab

The text

As transmitted.

719 
WUUS54 KMOB 250001
SVRMOB
ALC003-FLC033-113-250045-
/O.NEW.KMOB.SV.W.0112.210425T0001Z-210425T0045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
701 PM CDT Sat Apr 24 2021

The National Weather Service in Mobile has issued a

* Severe Thunderstorm Warning for...
  Central Baldwin County in southwestern Alabama...
  Northwestern Santa Rosa County in northwestern Florida...
  Northwestern Escambia County in northwestern Florida...

* Until 745 PM CDT.

* At 701 PM CDT, severe thunderstorms were located along a line
  extending from 5 miles southeast of Bratt to 4 miles west of
  Stapleton, moving east at 55 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Daphne, Fairhope, Bay Minette, Spanish Fort, Robertsdale, Century,
  Loxley, Stapleton, Molino, Silverhill and Bratt.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3048 8792 3088 8792 3100 8735 3100 8727
      3081 8696
TIME...MOT...LOC 0001Z 290DEG 48KT 3089 8739 3077 8787 

HAIL...1.00IN
WIND...60MPH
 
$$
1 follow-up statement
163 
WWUS54 KMOB 250016
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
716 PM CDT Sat Apr 24 2021

ALC003-FLC033-113-250026-
/O.CAN.KMOB.SV.W.0112.000000T0000Z-210425T0045Z/
Baldwin AL-Santa Rosa FL-Escambia FL-
716 PM CDT Sat Apr 24 2021

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL BALDWIN...NORTHWESTERN
SANTA ROSA AND NORTHWESTERN ESCAMBIA COUNTIES IS CANCELLED...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 900 PM CDT for
south central and southwestern Alabama...and northwestern Florida.

LAT...LON 3048 8792 3088 8792 3100 8735 3100 8727
      3081 8696
TIME...MOT...LOC 0014Z 290DEG 48KT 3083 8720 3071 8768 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 24, 7:39 PM CDTWind AdvisoryMOBEscambia, Okaloosa, Santa Rosa8 hr
Apr 24, 8:55 PM CDTRiver Flood WarningMOBOkaloosa4 days
Apr 24, 8:57 PM CDTRiver Flood WarningMOBOkaloosa, Santa Rosa27 hr
Apr 24, 7:00 PM CDTSevere Thunderstorm WarningMOBConecuh, Covington, Escambia45 min
Apr 24, 7:48 PM CDTSmall Craft AdvisoryMOB13 hr

Nearby

Severe Thunderstorm Warnings in Florida, 2021Severe 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.