Alert archive / Alabama / Special Weather Statements in 2020

Special Weather Statement, NWS Mobile, AL

August 18, 2020Escambia County, Alabama

NWS Mobile, AL issued this special weather statement at Aug 18, 2020, 5:50 PM CDT for Escambia County, Alabama. It was in force for 55 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 18, 2020, 5:50 PM CDT (22:50 UTC)
Expired
Aug 18, 2020, 6:45 PM CDT
In force
55 min
Issued by
NWS Mobile, AL

County Escambia County, AL

The radar

The Eglin Afb radar (KEVX), 104 km from the middle of the area, began a volume at 22:50 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, 10.8 hours before the alert went out and 250 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, Tallahassee Rgnl, FL at 12:00Z on 2020-08-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 728 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, Tallahassee Rgnl, FL at 12:00Z on 2020-08-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 2 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
728 J/kg
Mixed-layer CIN
-85 J/kg
Mixed-layer LCL
1417 m above ground
0-6 km bulk shear
3 kt
0-1 km storm-relative helicity
2 m²/s²
0-3 km storm-relative helicity
-5 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

<!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>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

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 18, 4:19 PM CDT, 1 hour 31 minutes earlier.

Area forecast discussion, Aug 18, 4:19 PM CDT, 1 hour 31 minutes 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>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

In the hours before

Special weather statement, Aug 18, 2:49 PM CDT, 3 hours 1 minute before
Special Weather Statement
National Weather Service Mobile AL
249 PM CDT Tue Aug 18 2020

FLZ205-182015-
Okaloosa Inland FL-
249 PM CDT Tue Aug 18 2020

...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...EAST
CENTRAL OKALOOSA COUNTY UNTIL 315 PM CDT...

At 249 PM CDT, the strong thunderstorm was located 10 miles northeast
of Crestview, moving southeast at 10 mph.

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

This storm will remain over mainly rural areas of east central
Okaloosa County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3082 8652 3092 8640 3091 8639 3062 8639
TIME...MOT...LOC 1949Z 315DEG 7KT 3081 8642
Special weather statement, Aug 18, 3:39 PM CDT, 2 hours 11 minutes before
Special Weather Statement
National Weather Service Mobile AL
339 PM CDT Tue Aug 18 2020

ALZ263-265-182115-
Mobile Coastal AL-Mobile Central AL-
339 PM CDT Tue Aug 18 2020

...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...SOUTH
CENTRAL MOBILE COUNTY UNTIL 415 PM CDT...

At 339 PM CDT, the strong thunderstorm was located over Theodore.
This storm was nearly stationary.

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

Locations impacted include...
Tillmans Corner, Theodore and I10 And I65.

LAT...LON 3041 8821 3056 8829 3065 8811 3059 8806
      3057 8809 3055 8808 3053 8808 3051 8810
      3046 8810
TIME...MOT...LOC 2039Z 326DEG 2KT 3055 8817
Special weather statement, Aug 18, 3:45 PM CDT, 2 hours 5 minutes before
Special Weather Statement
National Weather Service Mobile AL
345 PM CDT Tue Aug 18 2020

ALZ264-FLZ201-182115-
Baldwin Central AL-Escambia Inland FL-
345 PM CDT Tue Aug 18 2020

...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...EAST
CENTRAL BALDWIN AND WEST CENTRAL ESCAMBIA COUNTIES UNTIL 415 PM
CDT...

At 345 PM CDT, the strong thunderstorm was located 11 miles southwest
of Molino, or 12 miles northwest of Gonzalez. This storm was nearly
stationary.

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

This storm will remain over mainly rural areas of east central
Baldwin and west central Escambia Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3047 8754 3066 8762 3076 8745 3062 8728
      3052 8745 3053 8751 3049 8751
TIME...MOT...LOC 2045Z 326DEG 2KT 3066 8749
Special weather statement, Aug 18, 4:10 PM CDT, 1 hour 40 minutes 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>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>
Special weather statement, Aug 18, 4:56 PM CDT, 54 minutes 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>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>
Special weather statement, Aug 18, 5:50 PM CDT, 0 minutes 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>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 18, 1:08 PM CDTSpecial Marine WarningMOB67 min
Aug 18, 2:52 PM CDTSpecial Marine WarningMOB53 min
Aug 18, 3:39 PM CDTSpecial Weather StatementMOBMobile36 min
Aug 18, 3:52 PM CDTSevere Thunderstorm WarningMOBMobile38 min
Aug 18, 3:57 PM CDTSevere Thunderstorm WarningMOBBaldwin20 min
Aug 18, 4:06 PM CDTSpecial Marine WarningMOB24 min
Aug 18, 4:59 PM CDTSpecial Marine WarningMOB31 min
Aug 18, 6:07 PM CDTSevere Thunderstorm WarningMOBBaldwin53 min
Aug 18, 1:11 PM CDTSpecial Weather StatementMOBOkaloosa34 min
Aug 18, 2:20 PM CDTSpecial Weather StatementMOBOkaloosa25 min
Aug 18, 2:33 PM CDTSevere Thunderstorm WarningMOBOkaloosa13 min
Aug 18, 2:48 PM CDTSpecial Weather StatementMOBOkaloosa42 min
Aug 18, 2:49 PM CDTSpecial Weather StatementMOBOkaloosa26 min
Aug 18, 3:45 PM CDTSpecial Weather StatementMOBEscambia30 min
Aug 18, 4:10 PM CDTSpecial Weather StatementMOBSanta Rosa50 min
Aug 18, 4:56 PM CDTSpecial Weather StatementMOBSanta Rosa34 min

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.