Alert archive / Alabama / Special Weather Statements in 2015

Special Weather Statement, NWS Birmingham, AL

July 31, 2015Lee County, Russell County, Alabama

NWS Birmingham, AL issued this special weather statement at Jul 31, 2015, 4:13 PM CDT for Lee County, Russell 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: Jul 31, 2015, 4:13 PM CDT (21:13 UTC)
Expired: Jul 31, 2015, 5:00 PM CDT
In force: 47 min
Issued by: NWS Birmingham, AL

Counties Lee County, AL, Russell County, AL

The radar

The Maxwell AFB radar (KMXX), 55 km from the middle of the area, began a volume at 21:14 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, 9.2 hours before the alert went out and 145 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: 163 J/kg
Mixed-layer CIN: -190 J/kg
Mixed-layer LCL: 1196 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: -3 m²/s²
0-3 km storm-relative helicity: 5 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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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 31, 3:54 PM CDT	Special Weather Statement	BMX	Russell	51 min
Jul 31, 4:48 PM CDT	Special Weather Statement	BMX	Barbour, Pike	42 min
Jul 31, 5:05 PM CDT	Special Weather Statement	BMX	Russell	40 min
Jul 31, 5:32 PM CDT	Special Weather Statement	BMX	Barbour	43 min
Jul 31, 5:38 PM CDT	Areal Flood Advisory	BMX	Barbour, Russell	2 hr

Nearby

Special Weather Statements in Alabama, 2015 Every special weather statement in 2015

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.