Alert archive / Florida / Special Weather Statements in 2017

Special Weather Statement, NWS Mobile, AL

August 14, 2017Escambia County, Florida

NWS Mobile, AL issued this special weather statement at Aug 14, 2017, 2:23 PM CDT for Escambia County, Florida. It was in force for 37 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 14, 2017, 2:23 PM CDT (19:23 UTC)
Expired
Aug 14, 2017, 3:00 PM CDT
In force
37 min
Issued by
NWS Mobile, AL

County Escambia County, FL

The radar

The Mobile radar (KMOB), 87 km from the middle of the area, began a volume at 19:26 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

Slidell Radar S, LA (KSIL), launched 12:00Z, 7.4 hours before the alert went out and 233 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, Slidell Radar S, LA at 12:00Z on 2017-08-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1660 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, Slidell Radar S, LA at 12:00Z on 2017-08-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -89 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
1660 J/kg
Mixed-layer CIN
-37 J/kg
Mixed-layer LCL
849 m above ground
0-6 km bulk shear
4 kt
0-1 km storm-relative helicity
-89 m²/s²
0-3 km storm-relative helicity
-72 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 14, 12:53 PM CDT, 1 hour 30 minutes earlier.

Area forecast discussion, Aug 14, 12:53 PM CDT, 1 hour 30 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>
Hazardous weather outlook, Aug 14, 5:09 AM CDT, 9 hours 14 minutes before
Hazardous Weather Outlook...CORRECTED
National Weather Service Mobile AL
509 AM CDT Mon Aug 14 2017

ALZ051>060-261>266-FLZ201>206-MSZ067-075-076-078-079-151015-
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-
509 AM CDT Mon Aug 14 2017

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

.DAY ONE...Today and Tonight

Heat indices will range from 102 to 106 degrees today.

Scattered to numerous showers and thunderstorms will develop
across the region through this afternoon. The stronger storms that
develop will be capable of producing torrential downpours, which
could result in localized flooding of urban and low lying areas.
Frequent cloud to ground lightning strikes and brief strong and
gusty winds will also accompany the stronger storms that develop.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Heat indices are expected to range from 102 to 107 degrees
throughout the week.

Periods of very heavy rain...frequent cloud to ground lightning
and gusty straight line winds will be possible with the stronger
thunderstorms throughout the week. Torrential downpours could result
in localized flooding.

.SPOTTER INFORMATION STATEMENT...

Activation of SkyWarn Severe Storm Spotter networks is not
expected through Sunday.

GMZ630>635-650-655-670-675-151015-
Northern Mobile Bay-Southern Mobile Bay-Mississippi Sound-
Perdido Bay-Pensacola Bay System-Choctawhatchee Bay-
Coastal waters from Pensacola FL to Pascagoula MS out 20 NM-
Coastal waters from Destin to Pensacola FL out 20 NM-
Waters from Pensacola FL to Pascagoula MS from 20 to 60 NM-
Waters from Destin to Pensacola FL from 20 to 60 NM-
509 AM CDT Mon Aug 14 2017

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

.DAY ONE...Today and Tonight

Winds and seas will be higher in and around isolated to scattered
showers and thunderstorms through tonight.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Winds and seas will be higher in and around isolated to scattered
showers and thunderstorms throughout the week.

In the hours before

Special weather statement, Aug 14, 2:23 PM CDT, 0 minutes before
Special Weather Statement
National Weather Service Mobile AL
223 PM CDT MON AUG 14 2017

ALZ264-FLZ201>204-142000-
Baldwin Central AL-Escambia Inland FL-Santa Rosa Coastal FL-
Escambia Coastal FL-Santa Rosa Inland FL-
223 PM CDT MON AUG 14 2017

...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...EAST
CENTRAL BALDWIN...NORTHWESTERN SANTA ROSA AND CENTRAL ESCAMBIA
COUNTIES UNTIL 300 PM CDT...

At 223 PM CDT, the strong thunderstorm was located near Gonzalez,
moving northwest at 10 mph.

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

Locations impacted include...
Gonzalez, Pace, Molino, Floridatown and Pea Ridge.

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.

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 3072 8755 3087 8718 3061 8707 3053 8729
TIME...MOT...LOC 1923Z 142DEG 10KT 3065 8727

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 14, 2:32 PM CDTSpecial Weather StatementMOBMonroe28 min
Aug 14, 3:31 PM CDTSpecial Weather StatementMOBBaldwin44 min
Aug 14, 3:41 PM CDTSpecial Weather StatementMOBWilcox34 min
Aug 14, 4:32 PM CDTAreal Flood AdvisoryMOBButler, Crenshaw3 hr
Aug 14, 4:38 PM CDTSevere Thunderstorm WarningMOBButler, Crenshaw52 min
Aug 14, 4:49 PM CDTSpecial Weather StatementMOBMobile56 min
Aug 14, 5:07 PM CDTAreal Flood AdvisoryMOBMobile3 hr
Aug 14, 5:44 PM CDTSpecial Weather StatementMOBMobile46 min
Aug 14, 6:08 PM CDTAreal Flood AdvisoryMOBMobile112 min
Aug 14, 6:58 PM CDTSpecial Weather StatementMOBMobile47 min
Aug 13, 7:08 PM CDTSpecial Weather StatementMOBOkaloosa52 min
Aug 14, 2:54 PM CDTAreal Flood AdvisoryMOBEscambia, Santa Rosa66 min

Nearby

Special Weather Statements in Florida, 2017Every special weather statement in 2017

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.