Alert archive / Alabama / Special Weather Statements in 2014

Special Weather Statement, NWS Birmingham, AL

August 17, 2014Lowndes County, Alabama

NWS Birmingham, AL issued this special weather statement at Aug 17, 2014, 3:18 PM CDT for Lowndes 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
Aug 17, 2014, 3:18 PM CDT (20:18 UTC)
Expired
Aug 17, 2014, 4:00 PM CDT
In force
42 min
Issued by
NWS Birmingham, AL

County Lowndes County, AL

The radar

The Maxwell AFB radar (KMXX), 79 km from the middle of the area, began a volume at 20:18 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, 8.3 hours before the alert went out and 227 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 2014-08-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3 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 2014-08-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 74 square meters per square second.1939Sfc1 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
3 J/kg
Mixed-layer CIN
-155 J/kg
Mixed-layer LCL
1307 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
74 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, 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 Aug 17, 1:54 PM CDT, 1 hour 24 minutes earlier.

Area forecast discussion, Aug 17, 1:54 PM CDT, 1 hour 24 minutes before
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Hazardous weather outlook, Aug 17, 1:11 PM CDT, 2 hours 7 minutes before
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In the hours before

Special weather statement, Aug 17, 12:07 PM CDT, 3 hours 11 minutes before
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Special weather statement, Aug 17, 2:22 PM CDT, 56 minutes before
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Special weather statement, Aug 17, 2:45 PM CDT, 33 minutes before
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Special weather statement, Aug 17, 3:18 PM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 17, 12:07 PM CDTSpecial Weather StatementBMXMarion38 min
Aug 17, 2:22 PM CDTSpecial Weather StatementBMXElmore38 min
Aug 17, 2:45 PM CDTSpecial Weather StatementBMXRussell45 min
Aug 17, 3:59 PM CDTSpecial Weather StatementBMXMontgomery46 min
Aug 17, 5:03 PM CDTSpecial Weather StatementBMXRandolph42 min
Aug 17, 5:14 PM CDTSpecial Weather StatementBMXCherokee46 min
Aug 17, 6:41 PM CDTSpecial Weather StatementBMXClay49 min

Nearby

Special Weather Statements in Alabama, 2014Every special weather statement in 2014

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.