Alert archive / Alabama / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 56, NWS Mobile, AL

April 10, 20219 counties in Alabama; Escambia County, Florida; George County, Mississippi

NWS Mobile, AL issued this severe thunderstorm warning at Apr 10, 2021, 2:59 AM CDT for 9 counties in Alabama; Escambia County, Florida; George County, Mississippi. It was in force for 61 min. 5 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Apr 10, 2021, 2:59 AM CDT (07:59 UTC)
Expired
Apr 10, 2021, 4:00 AM CDT
In force
61 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Baldwin County, AL, Butler County, AL, Clarke County, AL, Conecuh County, AL, Escambia County, AL, Mobile County, AL, Monroe County, AL, Washington County, AL, Wilcox County, AL, Escambia County, FL, George County, MS

The radar

The Mobile radar (KMOB), 123 km from the middle of the area, began a volume at 08:02 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.

What was reported inside it

TimeReportWhereRemark
Apr 10, 3:10 AM CDTTSTM WND DMG2 Nne Semmes, ALTREE LIMBS DOWN ACROSS NORTHERN MOBILE COUNTY, ESPECIALLY NEAR LOTT AND SPICE POND RDS.
Apr 10, 3:30 AM CDTTSTM WND DMGExcel, ALDOWNED TREES ACROSS THE ENTIRE COUNTY. DIME SIZE HAIL IN THE EXCEL AREA.
Apr 10, 3:33 AM CDTTSTM WND DMGCamden, ALTREES DOWN IN CAMDEN.
Apr 10, 3:44 AM CDTTSTM WND DMG1 S Burnt Corn, ALLARGE TREE DOWN ACROSS CR 30/BURNT CORN RD. PHOTO VIA SOCIAL MEDIA. TIME ESTIMATED BASED ON RADAR.
Apr 10, 3:51 AM CDTTSTM WND DMG1 Wnw Loree, ALPOLICE STATION REPORTS LARGE TREE DOWN ON CR 99 OFF LOREE RD. ROAD IS CLOSED.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

IssuedProductOfficeLasted
Apr 9, 10:25 PM CDTSevere Thunderstorm WatchSPC6 hr
Apr 10, 2:30 AM CDTTornado WatchSPC8 hr
Apr 10, 12:16 AM CDTTornado WatchSPC7 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 8.0 hours before the alert went out and 191 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 2021-04-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 53 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 00:00Z on 2021-04-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 182 square meters per square second.193958Sfc1 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
53 J/kg
Mixed-layer CIN
-225 J/kg
Mixed-layer LCL
744 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
182 m²/s²
0-3 km storm-relative helicity
294 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.2

Open this sounding in Storm Lab

The text

As transmitted.

701 
WUUS54 KMOB 100759
SVRMOB
ALC003-013-025-035-053-097-099-129-131-FLC033-MSC039-100900-
/O.NEW.KMOB.SV.W.0056.210410T0759Z-210410T0900Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
259 AM CDT Sat Apr 10 2021

The National Weather Service in Mobile has issued a

* Severe Thunderstorm Warning for...
  Western Butler County in south central Alabama...
  Monroe County in south central Alabama...
  Mobile County in southwestern Alabama...
  Baldwin County in southwestern Alabama...
  Southeastern Washington County in southwestern Alabama...
  Eastern Clarke County in southwestern Alabama...
  Escambia County in south central Alabama...
  Wilcox County in south central Alabama...
  Conecuh County in south central Alabama...
  Northwestern Escambia County in northwestern Florida...
  Southeastern George County in southeastern Mississippi...

* Until 400 AM CDT.

* At 259 AM CDT, severe thunderstorms were located along a line
  extending from near Magnolia to 9 miles east of Whatley to near
  Mount Vernon to 4 miles northwest of Wade, moving east at 70 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Midtown Mobile, Downtown Mobile, Prichard, Saraland, Bay Minette,
  Atmore, Monroeville, Chickasaw, Satsuma, Spanish Fort, Evergreen,
  Camden, Creola, Century, Flomaton, Frisco City, Loxley, Chunchula,
  Stockton and McCullough.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 700 AM CDT for southeastern
Mississippi. A Tornado Watch also remains in effect until 800 AM CDT
for south central and southwestern Alabama...and northwestern
Florida.

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

&&

LAT...LON 3205 8718 3205 8686 3196 8686 3196 8663
      3168 8663 3160 8669 3140 8674 3092 8729
      3089 8728 3060 8751 3062 8841 3074 8841
      3074 8867 3110 8812 3167 8768 3199 8772
      3201 8762 3213 8762 3213 8752 3227 8752
TIME...MOT...LOC 0759Z 269DEG 61KT 3213 8763 3167 8755 3111 8799 3068
8864

HAIL...<.75IN
WIND...60MPH
 
$$
1 follow-up statement
241 
WWUS54 KMOB 100830
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
330 AM CDT Sat Apr 10 2021

ALC129-100840-
/O.CAN.KMOB.SV.W.0056.000000T0000Z-210410T0900Z/
Washington AL-
330 AM CDT Sat Apr 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN WASHINGTON COUNTY
IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 700 AM CDT for southeastern
Mississippi. A Tornado Watch also remains in effect until 800 AM CDT
for south central and southwestern Alabama...and northwestern
Florida.

A Severe Thunderstorm Watch remains in effect until 400 AM CDT for
south central and southwestern Alabama.

LAT...LON 3205 8718 3205 8686 3196 8686 3196 8663
      3168 8663 3160 8669 3140 8674 3092 8729
      3089 8728 3060 8751 3062 8841 3074 8841
      3074 8867 3120 8788 3158 8753 3227 8752
TIME...MOT...LOC 0830Z 263DEG 34KT 3215 8738 3169 8730 3113 8774 3070
8839

$$

ALC003-013-025-035-053-097-099-131-FLC033-MSC039-100900-
/O.CON.KMOB.SV.W.0056.000000T0000Z-210410T0900Z/
Butler AL-Monroe AL-Mobile AL-Baldwin AL-Clarke AL-Escambia AL-
Wilcox AL-Conecuh AL-Escambia FL-George MS-
330 AM CDT Sat Apr 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 AM CDT
FOR WESTERN BUTLER...MONROE...NORTHERN MOBILE...BALDWIN...
SOUTHEASTERN CLARKE...ESCAMBIA...WILCOX...CONECUH...NORTHWESTERN
ESCAMBIA AND SOUTHEASTERN GEORGE COUNTIES...

At 330 AM CDT, severe thunderstorms were located along a line
extending from 10 miles west of Dannelly Reservoir to 6 miles
southwest of Beatrice to 11 miles west of Poarch Creek Reservation to
near Tanner Williams, moving east at 40 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Midtown Mobile, Downtown Mobile, Prichard, Saraland, Bay Minette,
Atmore, Monroeville, Chickasaw, Satsuma, Spanish Fort, Evergreen,
Camden, Creola, Century, Flomaton, Frisco City, Loxley, Chunchula,
Stockton and McCullough.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 700 AM CDT for southeastern
Mississippi. A Tornado Watch also remains in effect until 800 AM CDT
for south central and southwestern Alabama...and northwestern
Florida.

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

&&

LAT...LON 3205 8718 3205 8686 3196 8686 3196 8663
      3168 8663 3160 8669 3140 8674 3092 8729
      3089 8728 3060 8751 3062 8841 3074 8841
      3074 8867 3120 8788 3158 8753 3227 8752
TIME...MOT...LOC 0830Z 263DEG 34KT 3215 8738 3169 8730 3113 8774 3070
8839

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

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 9, 9:31 PM CDTRiver Flood WarningMOBMobile63 hr
Apr 10, 1:06 AM CDTSevere Thunderstorm WarningMOBChoctaw54 min
Apr 10, 1:15 AM CDTSevere Thunderstorm WarningMOBChoctaw, Washington45 min
Apr 10, 1:33 AM CDTSpecial Marine WarningMOB87 min
Apr 10, 1:58 AM CDTSevere Thunderstorm WarningMOBChoctaw, Clarke, Washington, Wilcox62 min
Apr 10, 2:22 AM CDTSpecial Weather StatementMOBMobile68 min
Apr 10, 2:35 AM CDTSevere Thunderstorm WarningMOBMobile25 min
Apr 10, 2:43 AM CDTSevere Thunderstorm WarningMOBMobile17 min
Apr 10, 2:50 AM CDTSevere Thunderstorm WarningMOBBaldwin55 min
Apr 10, 3:36 AM CDTSpecial Marine WarningMOB114 min
Apr 10, 3:53 AM CDTSevere Thunderstorm WarningMOBBaldwin, Butler, Conecuh, Covington, Escambia, Mobile and 2 more67 min
Apr 10, 4:07 AM CDTAreal Flood AdvisoryMOBBaldwin, Escambia, Mobile3 hr
Apr 10, 4:33 AM CDTSevere Thunderstorm WarningMOBButler, Conecuh, Covington, Crenshaw, Escambia57 min
Apr 10, 4:53 AM CDTSevere Thunderstorm WarningMOBBaldwin, Covington, Escambia52 min
Apr 10, 5:10 AM CDTAreal Flood AdvisoryMOBBaldwin3 hr
Apr 10, 5:28 AM CDTSpecial Marine WarningMOB2 hr
Apr 10, 5:40 AM CDTFlash Flood WarningMOBBaldwin6 hr
Apr 10, 5:44 AM CDTSevere Thunderstorm WarningMOBBaldwin, Covington, Escambia61 min
Apr 10, 5:53 AM CDTFlash Flood WarningMOBMobile6 hr
Apr 10, 6:04 AM CDTSpecial Marine WarningMOB86 min
Apr 10, 6:20 AM CDTSevere Thunderstorm WarningMOBBaldwin, Mobile40 min
Apr 10, 6:48 AM CDTSpecial Marine WarningMOB87 min
Apr 10, 6:52 AM CDTSevere Thunderstorm WarningMOBBaldwin53 min
Apr 10, 7:12 AM CDTSpecial Marine WarningMOB63 min
Apr 10, 7:30 AM CDTSpecial Marine WarningMOB90 min
Apr 10, 9:28 AM CDTRiver Flood WarningMOBBaldwin11 hr
Apr 10, 9:33 AM CDTRiver Flood WarningMOBBaldwin5 hr
Apr 10, 3:46 AM CDTSpecial Weather StatementMOBEscambia, Santa Rosa44 min
Apr 10, 4:30 AM CDTSpecial Weather StatementMOBOkaloosa45 min
Apr 10, 5:57 AM CDTTornado WarningMOBOkaloosa33 min
Apr 10, 6:18 AM CDTTornado WarningMOBOkaloosa12 min
Apr 10, 7:35 AM CDTSevere Thunderstorm WarningMOBOkaloosa, Santa Rosa41 min
Apr 10, 7:39 AM CDTFlash Flood WarningMOBOkaloosa5 hr
Apr 10, 9:38 AM CDTRiver Flood WarningMOBOkaloosa11 hr
Apr 10, 3:11 AM CDTSevere Thunderstorm WarningMOBGeorge, Stone37 min
Apr 10, 4:31 AM CDTAreal Flood AdvisoryMOBGeorge, Perry, Stone3 hr
Apr 10, 5:16 AM CDTFlash Flood WarningMOBGeorge, Perry, Stone4 hr

Nearby

Severe Thunderstorm Warnings in Alabama, 2021Severe Thunderstorm Warnings in Florida, 2021Severe Thunderstorm Warnings in Mississippi, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.