Alert archive / Alabama / Special Weather Statements in 2021

Special Weather Statement, NWS Birmingham, AL

January 1, 2021Lee County, Alabama

NWS Birmingham, AL issued this special weather statement at Jan 1, 2021, 9:37 AM CST for Lee County, Alabama. It was in force for 38 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
Jan 1, 2021, 9:37 AM CST (15:37 UTC)
Expired
Jan 1, 2021, 10:15 AM CST
In force
38 min
Issued by
NWS Birmingham, AL

County Lee County, AL

The radar

The Maxwell AFB radar (KMXX), 43 km from the middle of the area, began a volume at 15:40 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

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 3.6 hours before the alert went out and 134 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, Peachtre/Fal Fld, GA at 12:00Z on 2021-01-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 7 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, Peachtre/Fal Fld, GA at 12:00Z on 2021-01-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 389 square meters per square second.1939587897117Sfc1 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
7 J/kg
Mixed-layer CIN
-202 J/kg
Mixed-layer LCL
573 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
389 m²/s²
0-3 km storm-relative helicity
491 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 Jan 1, 9:26 AM CST, 11 minutes earlier.

Area forecast discussion, Jan 1, 9:26 AM CST, 11 minutes before
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Hazardous weather outlook, Jan 1, 2:47 AM CST, 6 hours 50 minutes before
Hazardous Weather Outlook
National Weather Service Birmingham AL
247 AM CST Fri Jan 1 2021

ALZ011>015-017>050-021200-
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-
247 AM CST Fri Jan 1 2021

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

.DAY ONE...Outlook through Tonight.

There is a small risk for a brief tornado or damaging winds through
1 PM today along and south of a line from Demopolis to Alexander
City.

.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 may be needed
through early this afternoon.

In the hours before

Special weather statement, Jan 1, 5:09 AM CST, 4 hours 28 minutes before
Special Weather Statement
National Weather Service Birmingham AL
509 AM CST Fri Jan 1 2021

ALZ011-012-011145-
Marion AL-Lamar AL-
509 AM CST Fri Jan 1 2021

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN MARION AND
NORTHWESTERN LAMAR COUNTIES UNTIL 545 AM CST...

At 508 AM CST, Doppler radar was tracking a line of showers
extending from near Fairview to 6 miles northwest of Sulligent.
Movement was northeast at 45 mph.

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

Locations impacted include...
Hamilton, Detroit, Weston, Gattman, Henson Springs, Byrd, Pine
Springs, Bexar, Pigeye, Shottsville and Rankin Fite Airport.

LAT...LON 3432 8818 3431 8792 3411 8791 3383 8824
TIME...MOT...LOC 1108Z 222DEG 38KT 3432 8829 3394 8823

25/Owen
Special weather statement, Jan 1, 8:25 AM CST, 1 hour 12 minutes before
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Special weather statement, Jan 1, 9:37 AM CST, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jan 1, 5:09 AM CSTSpecial Weather StatementBMXMarion36 min
Jan 1, 8:25 AM CSTSpecial Weather StatementBMXPike35 min

Nearby

Special Weather Statements in Alabama, 2021Every special weather statement in 2021

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.