Alert archive / Alabama / Special Weather Statements in 2013

Special Weather Statement, NWS Birmingham, AL

July 11, 2013Hale County, Alabama

NWS Birmingham, AL issued this special weather statement at Jul 11, 2013, 3:09 AM CDT for Hale County, Alabama. It was in force for 36 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 11, 2013, 3:09 AM CDT (08:09 UTC)
Expired: Jul 11, 2013, 3:45 AM CDT
In force: 36 min
Issued by: NWS Birmingham, AL

County Hale County, AL

The radar

The Birmingham radar (KBMX), 104 km from the middle of the area, began a volume at 08:08 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

Birmingham, AL (KBMX), launched 00:00Z, 8.2 hours before the alert went out and 104 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: 114 J/kg
Mixed-layer CIN: -199 J/kg
Mixed-layer LCL: 1451 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 53 m²/s²
0-3 km storm-relative helicity: 75 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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 10, 7:28 PM CDT	Special Weather Statement	BMX	Sumter	47 min
Jul 10, 10:39 PM CDT	Special Weather Statement	BMX	Cherokee	51 min
Jul 10, 11:17 PM CDT	Special Weather Statement	BMX	Etowah	43 min
Jul 10, 11:28 PM CDT	Special Weather Statement	BMX	Cherokee	32 min
Jul 10, 11:46 PM CDT	Special Weather Statement	BMX	Blount, Calhoun, Cleburne, St. Clair	44 min
Jul 11, 12:15 AM CDT	Areal Flood Advisory	BMX	Cherokee	60 min
Jul 11, 12:18 AM CDT	Special Weather Statement	BMX	Fayette	42 min
Jul 11, 12:37 AM CDT	Special Weather Statement	BMX	Winston	53 min
Jul 11, 1:04 AM CDT	Areal Flood Advisory	BMX	Winston	3 hr
Jul 11, 1:27 AM CDT	Special Weather Statement	BMX	Walker, Winston	48 min
Jul 11, 2:15 AM CDT	Special Weather Statement	BMX	Fayette, Marion, Walker	45 min
Jul 11, 2:26 AM CDT	Areal Flood Advisory	BMX	Marion	3 hr
Jul 11, 2:57 AM CDT	Special Weather Statement	BMX	Marion	48 min
Jul 11, 3:32 AM CDT	Special Weather Statement	BMX	Lamar	43 min
Jul 11, 3:42 AM CDT	Special Weather Statement	BMX	Fayette	48 min
Jul 11, 3:54 AM CDT	Flash Flood Warning	BMX	Fayette, Lamar, Marion	3 hr
Jul 11, 4:23 AM CDT	Areal Flood Advisory	BMX	Dallas, Marengo, Perry	112 min
Jul 11, 4:32 AM CDT	Areal Flood Advisory	BMX	Fayette, Lamar, Pickens, Tuscaloosa	3 hr
Jul 11, 4:55 AM CDT	Areal Flood Advisory	BMX	Autauga	2 hr
Jul 11, 5:00 AM CDT	Flash Flood Warning	BMX	Marengo, Perry	3 hr
Jul 11, 5:15 AM CDT	Areal Flood Advisory	BMX	Hale	2 hr
Jul 11, 5:41 AM CDT	Flash Flood Warning	BMX	Greene, Hale, Perry	3 hr
Jul 11, 5:58 AM CDT	Areal Flood Advisory	BMX	Lowndes, Montgomery	3 hr
Jul 11, 6:46 AM CDT	Areal Flood Advisory	BMX	Marengo, Sumter	119 min
Jul 11, 7:19 AM CDT	Special Weather Statement	BMX	Marengo	26 min

Nearby

Special Weather Statements in Alabama, 2013 Every special weather statement in 2013

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.