Alert archive / Alabama / Special Weather Statements in 2020

Special Weather Statement, NWS Mobile, AL

August 11, 2020Crenshaw County, Alabama

NWS Mobile, AL issued this special weather statement at Aug 11, 2020, 3:03 PM CDT for Crenshaw 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 11, 2020, 3:03 PM CDT (20:03 UTC)
Expired
Aug 11, 2020, 4:00 PM CDT
In force
57 min
Issued by
NWS Mobile, AL

County Crenshaw County, AL

The radar

The Ft Rucker radar (KEOX), 76 km from the middle of the area, began a volume at 20:07 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 12:00Z, 8.1 hours before the alert went out and 179 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 12:00Z on 2020-08-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 953 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 12:00Z on 2020-08-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 53 square meters per square second.1939Sfc1 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
953 J/kg
Mixed-layer CIN
-99 J/kg
Mixed-layer LCL
1192 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
53 m²/s²
0-3 km storm-relative helicity
63 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Mobile, AL wrote its last area forecast discussion before this special weather statement went out at Aug 11, 1:02 PM CDT, 2 hours 1 minute earlier.

Area forecast discussion, Aug 11, 1:02 PM CDT, 2 hours 1 minute before
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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In the hours before

Special weather statement, Aug 11, 12:39 PM CDT, 2 hours 24 minutes before
Special Weather Statement
National Weather Service Mobile AL
1239 PM CDT Tue Aug 11 2020

ALZ054-111830-
Wilcox AL-
1239 PM CDT Tue Aug 11 2020

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT THE FOLLOWING
COUNTIES...CENTRAL WILCOX COUNTY UNTIL 130 PM CDT...

At 1238 PM CDT, the strong hunderstorms were located along a line
extending from 11 miles southeast of Belknap to 4 miles west of
Dannelly Reservoir, and moving south at 10 mph.

Wind gusts of 40 to 50 mph will be possible with these storms.

Locations impacted include...
Camden and Pine Apple.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3220 8736 3220 8733 3214 8728 3214 8725
      3212 8726 3212 8725 3210 8723 3208 8719
      3205 8718 3205 8686 3196 8690 3196 8691
      3193 8691 3185 8694 3204 8748 3222 8738
TIME...MOT...LOC 1738Z 352DEG 10KT 3205 8692 3217 8729
Special weather statement, Aug 11, 1:30 PM CDT, 1 hour 33 minutes before
Special Weather Statement
National Weather Service Mobile AL
130 PM CDT Tue Aug 11 2020

ALZ054-055-111915-
Wilcox AL-Monroe AL-
130 PM CDT Tue Aug 11 2020

...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...
NORTHEASTERN MONROE AND SOUTH CENTRAL WILCOX COUNTIES UNTIL 215 PM
CDT...

At 130 PM CDT, the strong thunderstorm was located 6 miles southeast
of Camden, moving south at 20 mph.

Wind gusts of 40 to 50 mph will be possible with this storm.

Locations impacted include...
Beatrice and Vredenburgh.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3199 8712 3173 8699 3171 8704 3172 8705
      3171 8706 3162 8734 3197 8733
TIME...MOT...LOC 1830Z 353DEG 16KT 3191 8722
Special weather statement, Aug 11, 2:09 PM CDT, 54 minutes before
Special Weather Statement
National Weather Service Mobile AL
209 PM CDT Tue Aug 11 2020

ALZ057-058-112015-
Butler AL-Crenshaw AL-
209 PM CDT Tue Aug 11 2020

...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...
NORTHEASTERN BUTLER AND NORTHERN CRENSHAW COUNTIES UNTIL 315 PM
CDT...

At 209 PM CDT, the strong thunderstorm was located near Logan, or 8
miles east of Fort Deposit, moving southeast at 10 mph.

Wind gusts of 40 to 50 mph will be possible with this storm.

Locations impacted include...
Rutledge, Petrey and Highland Home.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 3165 8658 3196 8658 3196 8641 3203 8641
      3204 8640 3205 8640 3205 8630 3197 8630
      3197 8620 3196 8618 3189 8617 3186 8618
      3183 8618 3181 8620 3179 8620 3179 8615
      3175 8615
TIME...MOT...LOC 1909Z 325DEG 10KT 3199 8643
Special weather statement, Aug 11, 3:03 PM CDT, 0 minutes before
Special Weather Statement
National Weather Service Mobile AL
303 PM CDT Tue Aug 11 2020

ALZ057-058-060-112100-
Butler AL-Covington AL-Crenshaw AL-
303 PM CDT Tue Aug 11 2020

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT THE FOLLOWING
COUNTIES...EASTERN BUTLER...CRENSHAW AND NORTHEASTERN COVINGTON
COUNTIES UNTIL 400 PM CDT...

At 303 PM CDT, the strong thunderstorms were located along a line
extending from 6 miles south of Highland Home to near Dozier. These
storms were nearly stationary.

Wind gusts of 40 to 50 mph will be possible with these storms.

Locations impacted include...
Opp, Luverne, Brantley, River Falls, Rutledge, Dozier, Heath, Gantt,
Glenwood and Petrey.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 3153 8620 3125 8619 3134 8658 3190 8653
      3192 8618 3183 8618 3179 8620 3179 8615
      3166 8615 3162 8618 3162 8615 3154 8614
TIME...MOT...LOC 2003Z 342DEG 4KT 3187 8633 3145 8638

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 10, 7:32 PM CDTSpecial Weather StatementMOBCrenshaw43 min
Aug 10, 8:15 PM CDTSpecial Weather StatementMOBCrenshaw30 min
Aug 11, 5:54 AM CDTSpecial Weather StatementMOBBaldwin36 min
Aug 11, 6:42 AM CDTAreal Flood AdvisoryMOBBaldwin3 hr
Aug 11, 12:39 PM CDTSpecial Weather StatementMOBWilcox51 min
Aug 11, 1:30 PM CDTSpecial Weather StatementMOBWilcox45 min
Aug 11, 2:09 PM CDTSpecial Weather StatementMOBCrenshaw66 min
Aug 11, 3:17 PM CDTSevere Thunderstorm WarningMOBCovington, Crenshaw43 min
Aug 11, 3:45 PM CDTSpecial Weather StatementMOBCovington60 min
Aug 11, 3:53 PM CDTSpecial Marine WarningMOB52 min
Aug 11, 4:13 PM CDTSpecial Weather StatementMOBCovington62 min
Aug 11, 4:51 PM CDTAreal Flood AdvisoryMOBConecuh, Covington, Escambia3 hr
Aug 11, 5:01 PM CDTSpecial Marine WarningMOB59 min
Aug 11, 5:04 PM CDTSevere Thunderstorm WarningMOBClarke, Monroe41 min
Aug 11, 5:14 PM CDTSpecial Weather StatementMOBEscambia76 min
Aug 11, 5:28 PM CDTSevere Thunderstorm WarningMOBConecuh, Monroe62 min
Aug 11, 5:37 PM CDTSpecial Marine WarningMOB83 min
Aug 11, 5:43 PM CDTAreal Flood AdvisoryMOBConecuh, Escambia, Monroe3 hr
Aug 11, 5:52 PM CDTSevere Thunderstorm WarningMOBEscambia53 min
Aug 11, 6:19 PM CDTSpecial Weather StatementMOBBaldwin56 min
Aug 11, 6:36 PM CDTFlash Flood WarningMOBClarke, Conecuh, Escambia, Monroe3 hr
Aug 11, 6:40 PM CDTSpecial Marine WarningMOB95 min
Aug 11, 6:54 PM CDTSpecial Weather StatementMOBBaldwin66 min
Aug 11, 4:26 PM CDTSevere Thunderstorm WarningMOBOkaloosa64 min
Aug 11, 4:46 PM CDTSpecial Weather StatementMOBSanta Rosa59 min
Aug 11, 4:58 PM CDTSpecial Weather StatementMOBOkaloosa47 min
Aug 11, 6:56 PM CDTAreal Flood AdvisoryMOBEscambia, Santa Rosa3 hr

Nearby

Special Weather Statements in Alabama, 2020Every special weather statement in 2020

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.