Alert archive / Alabama / Special Weather Statements in 2017

Special Weather Statement, NWS Birmingham, AL

May 27, 2017Etowah County, Alabama

NWS Birmingham, AL issued this special weather statement at May 27, 2017, 11:42 PM CDT for Etowah County, Alabama. It was in force for 33 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: May 27, 2017, 11:42 PM CDT (04:42 UTC)
Expired: May 28, 2017, 12:15 AM CDT
In force: 33 min
Issued by: NWS Birmingham, AL

County Etowah County, AL

The radar

The Northeast Alabama radar (KHTX), 87 km from the middle of the area, began a volume at 04:46 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 00:00Z, 4.7 hours before the alert went out and 121 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: 1881 J/kg
Mixed-layer CIN: -85 J/kg
Mixed-layer LCL: 1085 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 104 m²/s²
0-3 km storm-relative helicity: 183 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 10.1

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 May 27, 6:30 PM CDT, 5 hours 12 minutes earlier.

Area forecast discussion, May 27, 6:30 PM CDT, 5 hours 12 minutes before

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</head>
<body>
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    <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>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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Hazardous weather outlook, May 27, 8:22 PM CDT, 3 hours 20 minutes before

Hazardous Weather Outlook
National Weather Service Birmingham AL
822 PM CDT Sat May 27 2017

ALZ011>015-017>050-290430-
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-
822 PM CDT Sat May 27 2017

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

.DAY ONE...Through Tonight.

Damaging straight line winds and large hail are possible after
midnight across north central Alabama, as far south as the I-20
corridor. A line of strong to severe thunderstorms will push
southward out of Tennessee later this evening and across north
Alabama during the overnight hours. Areas that will see the highest
chances for severe weather will include areas along and north of a
line from Millport to Pinson to Anniston.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Activation of storm spotters and emergency management may be needed
later tonight across north Central Alabama.

In the hours before

Special weather statement, May 27, 10:49 PM CDT, 53 minutes before

Special Weather Statement
National Weather Service Birmingham AL
1049 PM CDT SAT MAY 27 2017

ALZ020-280500-
Cherokee AL-
1049 PM CDT SAT MAY 27 2017

...SIGNIFICANT WEATHER ADVISORY FOR CHEROKEE COUNTY UNTIL MIDNIGHT
CDT...

At 1049 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Section to 10 miles west of Trion.
Movement was southeast at 40 mph.

Pea size hail and wind gusts up to 50 mph will be possible with these
storms.

Locations impacted include...
Centre, Cedar Bluff, Little River Canyon National Preserve, Forney,
Centre Municipal Airport, Leesburg, Sand Rock, Gaylesville, Tennala,
Cherokee Rock Village, Pleasant Gap, Cornwall Furnace Park, Blanche,
Little River Falls, Slackland, Weiss Lake, Moshat, Ball Flat, Coloma
and Weiss Dam.

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.

These storms 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 3397 8540 3396 8549 3394 8550 3394 8553
      3396 8554 3397 8574 3410 8580 3412 8579
      3413 8580 3411 8584 3424 8584 3424 8581
      3426 8581 3426 8577 3436 8566 3437 8563
      3440 8563 3444 8558 3449 8557 3453 8552
TIME...MOT...LOC 0349Z 328DEG 34KT 3456 8607 3459 8549

32/Davis

Special weather statement, May 27, 11:42 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service Birmingham AL
1142 PM CDT SAT MAY 27 2017

ALZ017-018-280515-
Etowah AL-Blount AL-
1142 PM CDT SAT MAY 27 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN BLOUNT AND NORTHERN
ETOWAH COUNTIES UNTIL 1215 AM CDT...

At 1141 PM CDT, Doppler radar was tracking an outflow boundary well
ahead of thunderstorms along a line extending from near Arab to
Cherokee Rock Village. Movement was south at 30 mph.

Winds up to 40 mph will be possible with this outflow boundary.

Locations impacted include...
Gadsden, Hokes Bluff, Blountsville, Sardis City, Snead, Susan Moore,
Walnut Grove, Reece City, McLarty, Ballplay, Tabor Road, Aurora,
Strawberry, Noccalula Falls, Brooksville, Ridgeville, Howelton,
Crudup, Mountainboro and Keener.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
office in Birmingham.

&&

LAT...LON 3410 8630 3418 8619 3419 8611 3420 8610
      3420 8584 3411 8584 3412 8579 3410 8580
      3400 8574 3410 8658 3417 8657 3419 8655
      3420 8655 3425 8652 3426 8649 3426 8645
TIME...MOT...LOC 0441Z 356DEG 24KT 3430 8657 3421 8582

32/Davis

The office that day

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

Issued	Product	Office	Counties	Lasted
May 27, 10:49 PM CDT	Special Weather Statement	BMX	Cherokee	71 min
May 28, 12:50 AM CDT	Severe Thunderstorm Warning	BMX	Marion	70 min
May 28, 1:09 AM CDT	Severe Thunderstorm Warning	BMX	Fayette, Lamar	81 min
May 28, 1:21 AM CDT	Severe Thunderstorm Warning	BMX	Walker, Winston	69 min
May 28, 1:41 AM CDT	Special Weather Statement	BMX	DeKalb	34 min
May 28, 2:13 AM CDT	Special Weather Statement	BMX	Pickens, Tuscaloosa	77 min
May 28, 2:22 AM CDT	Severe Thunderstorm Warning	BMX	Blount	53 min
May 28, 2:28 AM CDT	Severe Thunderstorm Warning	BMX	Jefferson, Walker	77 min
May 28, 2:47 AM CDT	Severe Thunderstorm Warning	BMX	Etowah, St. Clair	58 min
May 28, 3:09 AM CDT	Special Weather Statement	BMX	Cherokee	51 min
May 28, 3:19 AM CDT	Severe Thunderstorm Warning	BMX	Calhoun, Cherokee	56 min
May 28, 3:34 AM CDT	Special Weather Statement	BMX	Talladega	56 min
May 28, 3:40 AM CDT	Severe Thunderstorm Warning	BMX	Cleburne	50 min
May 28, 4:08 AM CDT	Special Weather Statement	BMX	Clay, Randolph	67 min
May 28, 12:38 PM CDT	Special Weather Statement	BMX	Pike	52 min

Nearby

Special Weather Statements in Alabama, 2017 Every 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.