Alert archive / Alabama / Special Weather Statements in 2018

Special Weather Statement, NWS Birmingham, AL

August 9, 2018Blount County, Alabama

NWS Birmingham, AL issued this special weather statement at Aug 9, 2018, 12:09 PM CDT for Blount County, Alabama. It was in force for 36 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 9, 2018, 12:09 PM CDT (17:09 UTC)
Expired: Aug 9, 2018, 12:45 PM CDT
In force: 36 min
Issued by: NWS Birmingham, AL

County Blount County, AL

The radar

The Northeast Alabama radar (KHTX), 95 km from the middle of the area, began a volume at 17:09 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, 5.2 hours before the alert went out and 110 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: 1353 J/kg
Mixed-layer CIN: -46 J/kg
Mixed-layer LCL: 876 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 28 m²/s²
0-3 km storm-relative helicity: 66 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 Birmingham, AL wrote its last area forecast discussion before this special weather statement went out at Aug 9, 11:48 AM CDT, 21 minutes earlier.

Area forecast discussion, Aug 9, 11:48 AM CDT, 21 minutes before

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<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
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  <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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Hazardous weather outlook, Aug 9, 4:38 AM CDT, 7 hours 31 minutes before

Hazardous Weather Outlook
National Weather Service Birmingham AL
438 AM CDT Thu Aug 9 2018

ALZ011>015-017>050-101245-
Marion-Lamar-Fayette-Winston-Walker-Blount-Etowah-Calhoun-Cherokee-
Cleburne-Pickens-Tuscaloosa-Jefferson-Shelby-St. Clair-Talladega-
Clay-Randolph-Sumter-Greene-Hale-Perry-Bibb-Chilton-Coosa-Tallapoosa-
Chambers-Marengo-Dallas-Autauga-Lowndes-Elmore-Montgomery-Macon-
Bullock-Lee-Russell-Pike-Barbour-
438 AM CDT Thu Aug 9 2018

This Hazardous Weather Outlook is for the counties served by the
National Weather Service office in Birmingham.

.DAY ONE...Outlook through Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Activation of storm spotters and emergency management is not
expected at this time.

In the hours before

Local storm report, Aug 9, 11:01 AM CDT, 1 hour 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
1101 AM CDT THU AUG 9 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0440 PM     TSTM WND DMG     2 NNE BUCKSVILLE        33.31N 87.08W
08/08/2018                   JEFFERSON          AL   FIRE DEPT/RESCUE

            A FEW TREES DOWN IN THE LOWETOWN AREA NEAR
            MCCALLA. LOCATION APPROXIMATED.

&&

MW

Special weather statement, Aug 9, 11:50 AM CDT, 19 minutes before

Special Weather Statement
National Weather Service Birmingham AL
1150 AM CDT THU AUG 9 2018

ALZ017-091715-
Blount AL-
1150 AM CDT THU AUG 9 2018

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN BLOUNT COUNTY UNTIL
1215 PM CDT...

At 1150 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from Arab to near Nectar. Movement was east at 15
mph.

Winds in excess of 40 mph will be possible with these storms.

Locations impacted include...
Oneonta, Blountsville, Cleveland, Altoona, Snead, Susan Moore, Walnut
Grove, Rosa, McLarty, Strawberry, Brooksville, Chamblees Mill, Fowler
Spring and Hendrix.

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.

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

&&

LAT...LON 3421 8641 3410 8630 3405 8633 3399 8633
      3395 8637 3394 8633 3393 8633 3400 8670
      3411 8665 3412 8660 3415 8659 3419 8655
      3421 8655 3423 8652 3425 8651 3426 8645
TIME...MOT...LOC 1650Z 279DEG 12KT 3430 8650 3402 8662

05

Special weather statement, Aug 9, 12:09 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service Birmingham AL
1209 PM CDT THU AUG 9 2018

ALZ017-018-026-091745-
Etowah AL-St. Clair AL-Blount AL-
1209 PM CDT THU AUG 9 2018

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN BLOUNT...WESTERN ETOWAH
AND NORTH CENTRAL ST. CLAIR COUNTIES UNTIL 1245 PM CDT...

At 1209 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 6 miles east of Arab to near Altoona to Oneonta
to near Locust Fork. Movement was east at 20 mph.

Winds in excess of 40 mph will be possible with these storms.

Locations impacted include...
Rainbow City, Oneonta, Attalla, Cleveland, Ashville, Sardis City,
Locust Fork, Steele, Altoona, Snead, Susan Moore, Walnut Grove,
Allgood, Fairview, Rosa, McLarty, Aurora, Brooksville, Inland Lake
and Highland Lake.

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.

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

&&

LAT...LON 3426 8644 3425 8644 3421 8641 3410 8630
      3418 8619 3418 8611 3394 8614 3378 8629
      3390 8666 3404 8654 3426 8649
TIME...MOT...LOC 1709Z 283DEG 19KT 3429 8639 3402 8641 3394 8646 3388
8657

05

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 8, 7:13 PM CDT	Special Weather Statement	BMX	Cleburne	32 min
Aug 8, 7:16 PM CDT	Special Weather Statement	BMX	Barbour	44 min
Aug 8, 8:10 PM CDT	Special Weather Statement	BMX	Pickens	35 min
Aug 9, 11:50 AM CDT	Special Weather Statement	BMX	Blount	25 min
Aug 9, 12:32 PM CDT	Special Weather Statement	BMX	Etowah	28 min
Aug 9, 12:50 PM CDT	Special Weather Statement	BMX	Cherokee, Etowah	25 min
Aug 9, 1:02 PM CDT	Special Weather Statement	BMX	Bibb	28 min
Aug 9, 1:12 PM CDT	Special Weather Statement	BMX	Calhoun, Cherokee	33 min
Aug 9, 1:38 PM CDT	Special Weather Statement	BMX	Cherokee, Cleburne	37 min
Aug 9, 2:14 PM CDT	Special Weather Statement	BMX	Bibb	31 min
Aug 9, 2:29 PM CDT	Special Weather Statement	BMX	Randolph	31 min
Aug 9, 2:41 PM CDT	Special Weather Statement	BMX	Bibb	34 min
Aug 9, 2:56 PM CDT	Special Weather Statement	BMX	Chambers	34 min
Aug 9, 3:10 PM CDT	Special Weather Statement	BMX	Chilton	35 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.