Alert archive / Alabama / Special Weather Statements in 2018

Special Weather Statement, NWS Birmingham, AL

July 6, 2018Marion County, Alabama

NWS Birmingham, AL issued this special weather statement at Jul 6, 2018, 3:39 PM CDT for Marion 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: Jul 6, 2018, 3:39 PM CDT (20:39 UTC)
Expired: Jul 6, 2018, 4:15 PM CDT
In force: 36 min
Issued by: NWS Birmingham, AL

County Marion County, AL

The radar

The Columbus AFB radar (KGWX), 50 km from the middle of the area, began a volume at 20:39 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

Little Rock, AR (KBYH), launched 12:00Z, 8.7 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: 571 J/kg
Mixed-layer CIN: -100 J/kg
Mixed-layer LCL: 1308 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 33 m²/s²
0-3 km storm-relative helicity: 60 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 Jul 6, 3:28 PM CDT, 11 minutes earlier.

Area forecast discussion, Jul 6, 3:28 PM CDT, 11 minutes before

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Hazardous weather outlook, Jul 6, 5:02 AM CDT, 10 hours 37 minutes before

Hazardous Weather Outlook
National Weather Service Birmingham AL
502 AM CDT Fri Jul 6 2018

ALZ011>015-017>050-071315-
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-
502 AM CDT Fri Jul 6 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...Saturday through Thursday.

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, Jul 6, 2:32 PM CDT, 1 hour 7 minutes before

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Special weather statement, Jul 6, 2:57 PM CDT, 42 minutes before

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Special weather statement, Jul 6, 3:15 PM CDT, 24 minutes before

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Special weather statement, Jul 6, 3:18 PM CDT, 21 minutes before

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Special weather statement, Jul 6, 3:25 PM CDT, 14 minutes before

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Special weather statement, Jul 6, 3:39 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
Jul 6, 1:40 PM CDT	Special Weather Statement	BMX	DeKalb	35 min
Jul 6, 1:53 PM CDT	Special Weather Statement	BMX	Etowah	37 min
Jul 6, 2:10 PM CDT	Areal Flood Advisory	BMX	Blount, Cherokee, Etowah	2 hr
Jul 6, 2:30 PM CDT	Special Weather Statement	BMX	Blount	30 min
Jul 6, 2:32 PM CDT	Special Weather Statement	BMX	Cherokee	28 min
Jul 6, 2:57 PM CDT	Special Weather Statement	BMX	Winston	33 min
Jul 6, 3:15 PM CDT	Special Weather Statement	BMX	Lamar	30 min
Jul 6, 3:18 PM CDT	Special Weather Statement	BMX	Winston	27 min
Jul 6, 3:25 PM CDT	Special Weather Statement	BMX	Marion	35 min
Jul 6, 4:10 PM CDT	Special Weather Statement	BMX	Marion	35 min
Jul 6, 4:20 PM CDT	Areal Flood Advisory	BMX	Fayette, Lamar, Marion, Walker, Winston	115 min
Jul 6, 4:26 PM CDT	Special Weather Statement	BMX	Bibb	34 min
Jul 6, 4:37 PM CDT	Special Weather Statement	BMX	Cleburne	38 min
Jul 6, 4:44 PM CDT	Special Weather Statement	BMX	Pickens	31 min
Jul 6, 4:53 PM CDT	Special Weather Statement	BMX	Tuscaloosa	37 min
Jul 6, 5:01 PM CDT	Special Weather Statement	BMX	Bibb	29 min
Jul 6, 5:10 PM CDT	Special Weather Statement	BMX	Pickens	35 min
Jul 6, 5:23 PM CDT	Areal Flood Advisory	BMX	Tuscaloosa	2 hr
Jul 6, 5:29 PM CDT	Special Weather Statement	BMX	Greene	31 min
Jul 6, 5:34 PM CDT	Flash Flood Warning	BMX	Tuscaloosa	2 hr
Jul 6, 6:00 PM CDT	Special Weather Statement	BMX	Greene	30 min
Jul 6, 6:15 PM CDT	Areal Flood Advisory	BMX	Bibb, Greene, Pickens, Tuscaloosa	2 hr
Jul 6, 6:58 PM CDT	Special Weather Statement	BMX	Chambers	32 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.