Alert archive / Alabama / Special Weather Statements in 2018

Special Weather Statement, NWS Tallahassee, FL

August 20, 2018Coffee County, Dale County, Alabama

NWS Tallahassee, FL issued this special weather statement at Aug 20, 2018, 1:01 PM CDT for Coffee County, Dale 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 20, 2018, 1:01 PM CDT (18:01 UTC)
Expired: Aug 20, 2018, 1:45 PM CDT
In force: 44 min
Issued by: NWS Tallahassee, FL

Counties Coffee County, AL, Dale County, AL

The radar

The Ft Rucker radar (KEOX), 23 km from the middle of the area, began a volume at 18:00 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 nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 6.0 hours before the alert went out and 172 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: 527 J/kg
Mixed-layer CIN: -25 J/kg
Mixed-layer LCL: 916 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: -15 m²/s²
0-3 km storm-relative helicity: 10 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 Tallahassee, FL wrote its last area forecast discussion before this special weather statement went out at Aug 20, 11:00 AM CDT, 2 hours 1 minute earlier.

Area forecast discussion, Aug 20, 11:00 AM CDT, 2 hours 1 minute before

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  <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.
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      <p id="message2">
        Please try again in a few minutes.
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In the hours before

Special weather statement, Aug 20, 12:18 PM CDT, 43 minutes before

Special Weather Statement
National Weather Service Tallahassee FL
1218 PM CDT MON AUG 20 2018

ALZ065-066-068-069-201800-
Dale AL-Coffee AL-Houston AL-Geneva AL-
1218 PM CDT MON AUG 20 2018

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN DALE...COFFEE...
NORTHWESTERN GENEVA AND NORTHWESTERN HOUSTON COUNTIES UNTIL 100 PM
CDT...

At 1217 PM CDT, Doppler radar was tracking a strong thunderstorm near
Opp, moving northeast at 25 mph.

Winds in excess of 40 mph will be possible with this storm.

Locations impacted include...
Daleville, Elba, Enterprise, Fort Rucker, Ozark, Level Plains,
Samson, Newton, New Brockton, Clayhatchee, Kinston, Coffee Springs,
Mixons Crossroads, Carl Folsom A/p, Hooper Stage Field, Gerald,
Central City, Camp Humming Hills, Clintonville and Roeton.

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 3162 8582 3125 8557 3108 8615 3114 8619
      3133 8620
TIME...MOT...LOC 1717Z 240DEG 24KT 3124 8615

33-LF

Special weather statement, Aug 20, 1:01 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service Tallahassee FL
101 PM CDT MON AUG 20 2018

ALZ065>067-201845-
Dale AL-Henry AL-Coffee AL-
101 PM CDT MON AUG 20 2018

...SPECIAL WEATHER STATEMENT...

At 101 PM CDT, Doppler radar was tracking a strong thunderstorm over
Enterprise, moving northeast at 30 mph.

Winds in excess of 30 mph will be possible with this storm.

Locations impacted include...
Daleville, Enterprise, Fort Rucker, Ozark, Headland, Midland City,
Level Plains, Newton, New Brockton, Ariton, Pinckard, Clayhatchee,
Newville, Mixons Crossroads, Hunt Field, Waterford, Hooper Stage
Field, Gerald, Clintonville and Ewell.

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.

&&

LAT...LON 3162 8574 3162 8547 3141 8529 3127 8562
      3127 8566 3125 8568 3119 8581 3120 8583
      3143 8603
TIME...MOT...LOC 1801Z 241DEG 25KT 3135 8584

33-LF

The office that day

Everything else NWS Tallahassee, FL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 20, 2:20 PM CDT	Special Weather Statement	TAE	Leon	40 min
Aug 20, 2:46 PM CDT	Severe Thunderstorm Warning	TAE	Jefferson, Leon	29 min
Aug 20, 3:08 PM CDT	Severe Thunderstorm Warning	TAE	Leon	13 min
Aug 20, 3:41 PM CDT	Special Weather Statement	TAE	Terrell	49 min
Aug 20, 6:55 PM CDT	Special Weather Statement	TAE	Lanier	50 min
Aug 20, 12:18 PM CDT	Special Weather Statement	TAE	Coffee	42 min
Aug 20, 3:28 PM CDT	Special Weather Statement	TAE	Houston	47 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.