Alert archive / Alabama / Special Weather Statements in 2020

Special Weather Statement, NWS Birmingham, AL

June 21, 2020Greene County, Sumter County, Alabama

NWS Birmingham, AL issued this special weather statement at Jun 21, 2020, 7:13 PM CDT for Greene County, Sumter County, Alabama. It was in force for 47 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: Jun 21, 2020, 7:13 PM CDT (00:13 UTC)
Expired: Jun 21, 2020, 8:00 PM CDT
In force: 47 min
Issued by: NWS Birmingham, AL

Counties Greene County, AL, Sumter County, AL

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 0.2 hours before the alert went out and 215 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: 1163 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 1492 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: -18 m²/s²
0-3 km storm-relative helicity: 48 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 Jun 21, 6:42 PM CDT, 31 minutes earlier.

Area forecast discussion, Jun 21, 6:42 PM CDT, 31 minutes before

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Hazardous weather outlook, Jun 21, 3:38 AM CDT, 15 hours 35 minutes before

Hazardous Weather Outlook
National Weather Service Birmingham AL
338 AM CDT Sun Jun 21 2020

ALZ011>015-017>050-221145-
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-
338 AM CDT Sun Jun 21 2020

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...Monday through Saturday.

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

Special weather statement, Jun 21, 5:22 PM CDT, 1 hour 51 minutes before

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Special weather statement, Jun 21, 6:10 PM CDT, 1 hour 3 minutes before

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Special weather statement, Jun 21, 6:45 PM CDT, 28 minutes before

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Local storm report, Jun 21, 7:04 PM CDT, 9 minutes before

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Local storm report, Jun 21, 7:06 PM CDT, 7 minutes before

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Special weather statement, Jun 21, 7:13 PM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 21, 7:57 PM CDT	Special Weather Statement	BMX	Greene	48 min
Jun 22, 12:28 PM CDT	Special Weather Statement	BMX	Lowndes	32 min
Jun 22, 12:49 PM CDT	Special Weather Statement	BMX	Montgomery	26 min
Jun 22, 12:55 PM CDT	Special Weather Statement	BMX	Autauga	35 min
Jun 22, 1:14 PM CDT	Special Weather Statement	BMX	Perry	46 min
Jun 22, 1:19 PM CDT	Severe Thunderstorm Warning	BMX	Chilton, Coosa, Shelby	23 min
Jun 22, 1:32 PM CDT	Special Weather Statement	BMX	Macon	43 min
Jun 22, 1:34 PM CDT	Special Weather Statement	BMX	Pike	41 min
Jun 22, 1:38 PM CDT	Special Weather Statement	BMX	Pickens	37 min
Jun 22, 1:51 PM CDT	Special Weather Statement	BMX	Coosa	24 min
Jun 22, 1:55 PM CDT	Special Weather Statement	BMX	Tuscaloosa	35 min
Jun 22, 2:00 PM CDT	Special Weather Statement	BMX	Shelby	45 min
Jun 22, 2:06 PM CDT	Special Weather Statement	BMX	Macon	39 min
Jun 22, 2:16 PM CDT	Special Weather Statement	BMX	Lamar	44 min
Jun 22, 2:22 PM CDT	Special Weather Statement	BMX	Tuscaloosa	38 min
Jun 22, 2:35 PM CDT	Special Weather Statement	BMX	Chambers, Clay, Randolph, Talladega	40 min
Jun 22, 2:47 PM CDT	Special Weather Statement	BMX	Chambers, Lee	43 min
Jun 22, 2:58 PM CDT	Special Weather Statement	BMX	Jefferson, Walker	47 min
Jun 22, 3:02 PM CDT	Special Weather Statement	BMX	Marion	43 min
Jun 22, 3:21 PM CDT	Special Weather Statement	BMX	Blount, Calhoun, St. Clair	39 min
Jun 22, 3:23 PM CDT	Special Weather Statement	BMX	Cleburne, Randolph	52 min
Jun 22, 3:39 PM CDT	Special Weather Statement	BMX	Winston	51 min
Jun 22, 3:55 PM CDT	Special Weather Statement	BMX	Blount, Etowah	50 min
Jun 22, 4:02 PM CDT	Special Weather Statement	BMX	Calhoun, Cleburne	28 min
Jun 22, 4:25 PM CDT	Special Weather Statement	BMX	Cherokee	35 min

Nearby

Special Weather Statements in Alabama, 2020 Every 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.