Alert archive / Alabama / Special Weather Statements in 2012

Special Weather Statement, NWS Birmingham, AL

September 4, 2012Lowndes County, Alabama

NWS Birmingham, AL issued this special weather statement at Sep 4, 2012, 4:36 AM CDT for Lowndes County, Alabama. It was in force for 24 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: Sep 4, 2012, 4:36 AM CDT (09:36 UTC)
Expired: Sep 4, 2012, 5:00 AM CDT
In force: 24 min
Issued by: NWS Birmingham, AL

County Lowndes County, AL

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 9.6 hours before the alert went out and 101 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: 1069 J/kg
Mixed-layer CIN: -48 J/kg
Mixed-layer LCL: 747 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 124 m²/s²
0-3 km storm-relative helicity: 238 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 3.9

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 Sep 3, 11:45 PM CDT, 4 hours 51 minutes earlier.

Area forecast discussion, Sep 3, 11:45 PM CDT, 4 hours 51 minutes before

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Hazardous weather outlook, Sep 3, 11:13 PM CDT, 5 hours 23 minutes before

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In the hours before

Local storm report, Sep 3, 11:33 PM CDT, 5 hours 3 minutes before

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Local storm report, Sep 3, 11:37 PM CDT, 4 hours 59 minutes before

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Special weather statement, Sep 3, 11:51 PM CDT, 4 hours 45 minutes before

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Local storm report, Sep 4, 12:29 AM CDT, 4 hours 7 minutes before

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Local storm report, Sep 4, 3:23 AM CDT, 1 hour 13 minutes before

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Special weather statement, Sep 4, 4:36 AM 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
Sep 3, 7:01 PM CDT	Special Weather Statement	BMX	Pike	59 min
Sep 3, 7:06 PM CDT	Special Weather Statement	BMX	Perry	39 min
Sep 3, 7:20 PM CDT	Areal Flood Advisory	BMX	Jefferson	115 min
Sep 3, 7:23 PM CDT	Special Weather Statement	BMX	Pickens	52 min
Sep 3, 7:24 PM CDT	Special Weather Statement	BMX	Tuscaloosa	51 min
Sep 3, 7:38 PM CDT	Severe Thunderstorm Warning	BMX	Pickens	52 min
Sep 3, 8:01 PM CDT	Special Weather Statement	BMX	Hale	44 min
Sep 3, 8:03 PM CDT	Special Weather Statement	BMX	Barbour	42 min
Sep 3, 8:09 PM CDT	Special Weather Statement	BMX	Walker	36 min
Sep 3, 8:24 PM CDT	Special Weather Statement	BMX	Greene	66 min
Sep 3, 8:30 PM CDT	Areal Flood Advisory	BMX	Greene, Pickens	3 hr
Sep 3, 8:36 PM CDT	Special Weather Statement	BMX	Pickens	54 min
Sep 3, 8:59 PM CDT	Severe Thunderstorm Warning	BMX	Pickens	31 min
Sep 3, 9:03 PM CDT	Severe Thunderstorm Warning	BMX	Greene	42 min
Sep 3, 9:15 PM CDT	Areal Flood Warning	BMX	Hale, Perry	3 hr
Sep 3, 9:18 PM CDT	Flash Flood Warning	BMX	Pickens	3 hr
Sep 3, 9:30 PM CDT	Severe Thunderstorm Warning	BMX	Pickens	60 min
Sep 3, 9:49 PM CDT	Special Weather Statement	BMX	Greene	41 min
Sep 3, 9:51 PM CDT	Special Weather Statement	BMX	Cherokee	39 min
Sep 3, 9:56 PM CDT	Flash Flood Warning	BMX	Tuscaloosa	3 hr
Sep 3, 10:40 PM CDT	Special Weather Statement	BMX	Greene	65 min
Sep 3, 10:52 PM CDT	Severe Thunderstorm Warning	BMX	Greene, Sumter	53 min
Sep 3, 10:58 PM CDT	Tornado Warning	BMX	Greene, Sumter	11 min
Sep 3, 11:51 PM CDT	Special Weather Statement	BMX	Sumter	39 min
Sep 4, 6:08 AM CDT	Areal Flood Advisory	BMX	Autauga, Lowndes	3 hr
Sep 4, 6:19 AM CDT	Flash Flood Warning	BMX	Dallas, Lowndes	6 hr
Sep 4, 6:30 AM CDT	Flash Flood Warning	BMX	Bibb, Hale, Perry, Tuscaloosa	3 hr
Sep 4, 6:50 AM CDT	Areal Flood Advisory	BMX	Autauga, Chilton, Dallas, Perry	3 hr
Sep 4, 7:03 AM CDT	Areal Flood Advisory	BMX	Tuscaloosa	3 hr
Sep 4, 7:22 AM CDT	Flash Flood Warning	BMX	Autauga, Dallas, Lowndes, Perry	3 hr
Sep 4, 9:02 AM CDT	Flash Flood Warning	BMX	Dallas, Perry	3 hr
Sep 4, 9:28 AM CDT	Areal Flood Warning	BMX	Bibb, Chilton, Hale, Perry	3 hr
Sep 4, 9:32 AM CDT	Special Weather Statement	BMX	Dallas	43 min
Sep 4, 10:28 AM CDT	Flash Flood Warning Emergency	BMX	Autauga, Dallas, Lowndes, Perry	3 hr
Sep 4, 11:57 AM CDT	Areal Flood Warning	BMX	Dallas	3 hr
Sep 4, 12:27 PM CDT	Areal Flood Warning	BMX	Dallas, Lowndes	3 hr
Sep 4, 3:14 PM CDT	Special Weather Statement	BMX	Greene	61 min
Sep 4, 3:51 PM CDT	Areal Flood Advisory	BMX	Greene, Hale	3 hr
Sep 4, 4:42 PM CDT	Areal Flood Advisory	BMX	Marengo	3 hr
Sep 4, 4:53 PM CDT	Special Weather Statement	BMX	Marengo	52 min
Sep 4, 5:41 PM CDT	Special Weather Statement	BMX	Marengo	49 min

Nearby

Special Weather Statements in Alabama, 2012 Every special weather statement in 2012

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.