Alert archive / Alabama / Special Weather Statements in 2011

Special Weather Statement, NWS Birmingham, AL

July 27, 2011Russell County, Alabama

NWS Birmingham, AL issued this special weather statement at Jul 27, 2011, 4:48 PM CDT for Russell County, Alabama. It was in force for 42 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 27, 2011, 4:48 PM CDT (21:48 UTC)
Expired: Jul 27, 2011, 5:30 PM CDT
In force: 42 min
Issued by: NWS Birmingham, AL

County Russell County, AL

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 9.8 hours before the alert went out and 125 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: 1199 J/kg
Mixed-layer CIN: -76 J/kg
Mixed-layer LCL: 911 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: 22 m²/s²
0-3 km storm-relative helicity: 9 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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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 27, 3:31 PM CDT, 1 hour 17 minutes earlier.

Area forecast discussion, Jul 27, 3:31 PM CDT, 1 hour 17 minutes before

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Hazardous weather outlook, Jul 27, 12:35 PM CDT, 4 hours 13 minutes before

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In the hours before

Special weather statement, Jul 27, 1:23 PM CDT, 3 hours 25 minutes before

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Special weather statement, Jul 27, 1:43 PM CDT, 3 hours 5 minutes before

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Special weather statement, Jul 27, 3:57 PM CDT, 51 minutes before

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Special weather statement, Jul 27, 4:37 PM CDT, 11 minutes before

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Special weather statement, Jul 27, 4:48 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 27, 8:14 AM CDT	Areal Flood Advisory	BMX	Lowndes	61 min
Jul 27, 8:48 AM CDT	Flash Flood Warning	BMX	Lowndes	3 hr
Jul 27, 1:23 PM CDT	Special Weather Statement	BMX	Bibb	37 min
Jul 27, 1:43 PM CDT	Special Weather Statement	BMX	Hale	47 min
Jul 27, 4:37 PM CDT	Special Weather Statement	BMX	Hale	38 min
Jul 27, 5:08 PM CDT	Special Weather Statement	BMX	Fayette	52 min
Jul 27, 5:56 PM CDT	Special Weather Statement	BMX	Fayette	49 min

Nearby

Special Weather Statements in Alabama, 2011 Every special weather statement in 2011

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.