Alert archive / Alabama / Special Weather Statements in 2018

Special Weather Statement, NWS Mobile, AL

August 21, 2018Crenshaw County, Alabama

NWS Mobile, AL issued this special weather statement at Aug 21, 2018, 3:16 PM CDT for Crenshaw County, Alabama. It was in force for 44 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 21, 2018, 3:16 PM CDT (20:16 UTC)
Expired: Aug 21, 2018, 4:00 PM CDT
In force: 44 min
Issued by: NWS Mobile, AL

County Crenshaw County, AL

The radar

The Ft Rucker radar (KEOX), 77 km from the middle of the area, began a volume at 20:19 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, 8.3 hours before the alert went out and 182 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: 917 J/kg
Mixed-layer CIN: -31 J/kg
Mixed-layer LCL: 579 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 157 m²/s²
0-3 km storm-relative helicity: 147 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 3.4

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 21, 1:03 PM CDT, 2 hours 13 minutes earlier.

Area forecast discussion, Aug 21, 1:03 PM CDT, 2 hours 13 minutes before

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  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
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</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.
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      <p id="message2">
        Please try again in a few minutes.
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Hazardous weather outlook, Aug 21, 4:56 AM CDT, 10 hours 20 minutes before

Hazardous Weather Outlook
National Weather Service Mobile AL
456 AM CDT Tue Aug 21 2018

ALZ051>060-261>266-FLZ201>206-MSZ067-075-076-078-079-221000-
Choctaw-Washington-Clarke-Wilcox-Monroe-Conecuh-Butler-Crenshaw-
Escambia-Covington-Mobile Inland-Baldwin Inland-Mobile Central-
Baldwin Central-Mobile Coastal-Baldwin Coastal-Escambia Inland-
Escambia Coastal-Santa Rosa Inland-Santa Rosa Coastal-
Okaloosa Inland-Okaloosa Coastal-Wayne-Perry-Greene-Stone-George-
456 AM CDT Tue Aug 21 2018

This Hazardous Weather Outlook is for south central Alabama,
southwest Alabama, northwest Florida and southeast Mississippi.

.DAY ONE...Today and Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

GMZ630>636-650-655-670-675-221000-
Northern Mobile Bay-Southern Mobile Bay-Mississippi Sound-
Perdido Bay-Pensacola Bay System-Western Choctawhatchee Bay-
Eastern Choctawhatchee Bay-
Coastal waters from Pensacola FL to Pascagoula MS out 20 NM-
Coastal waters from Okaloosa Walton County Line FL to Pensacola FL
out 20 NM-Waters from Pensacola FL to Pascagoula MS from 20 to 60 NM-
Waters from Okaloosa Walton County Line FL to Pensacola FL from
20 to 60 NM-
456 AM CDT Tue Aug 21 2018

This Hazardous Weather Outlook is for the coastal waters of Alabama
and northwest Florida.

.DAY ONE...Today and Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

No hazardous weather is expected at this time.

In the hours before

Special weather statement, Aug 21, 3:16 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service Mobile AL
316 PM CDT TUE AUG 21 2018

ALZ058-212100-
Crenshaw AL-
316 PM CDT TUE AUG 21 2018

...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...
CRENSHAW COUNTY UNTIL 400 PM CDT...

At 316 PM CDT, the strong thunderstorm was located over Luverne,
moving east at 30 mph.

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

Locations impacted include...
Luverne, Brantley, Rutledge, Dozier, Glenwood and Petrey.

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 3153 8620 3144 8620 3144 8626 3146 8628
      3153 8628 3149 8634 3149 8636 3146 8639
      3147 8640 3153 8640 3153 8649 3196 8622
      3195 8618 3183 8618 3179 8620 3179 8615
      3166 8615 3162 8618 3162 8615 3154 8614
TIME...MOT...LOC 2016Z 269DEG 26KT 3176 8626

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 21, 4:03 PM CDT	Special Weather Statement	MOB	Crenshaw	42 min
Aug 21, 4:51 PM CDT	Special Weather Statement	MOB	Covington	24 min
Aug 21, 5:58 PM CDT	Special Weather Statement	MOB	Mobile	32 min
Aug 21, 6:05 PM CDT	Special Marine Warning	MOB		40 min
Aug 21, 6:35 PM CDT	Special Weather Statement	MOB	Baldwin	40 min
Aug 21, 6:43 PM CDT	Special Weather Statement	MOB	Mobile	47 min
Aug 21, 6:45 PM CDT	Special Marine Warning	MOB		60 min
Aug 21, 6:52 PM CDT	Special Weather Statement	MOB	Santa Rosa	23 min

Nearby

Special Weather Statements in Alabama, 2018 Every special weather statement in 2018

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.