Alert archive / Alabama / Special Weather Statements in 2017

Special Weather Statement, NWS Birmingham, AL

July 24, 2017Fayette County, Lamar County, Alabama

NWS Birmingham, AL issued this special weather statement at Jul 24, 2017, 6:44 PM CDT for Fayette County, Lamar County, Alabama. It was in force for 31 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 24, 2017, 6:44 PM CDT (23:44 UTC)
Expired: Jul 24, 2017, 7:15 PM CDT
In force: 31 min
Issued by: NWS Birmingham, AL

Counties Fayette County, AL, Lamar County, AL

The radar

The Columbus AFB radar (KGWX), 27 km from the middle of the area, began a volume at 23:47 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

Jackson, MS (KJAN), launched 12:00Z, 11.7 hours before the alert went out and 248 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: 279 J/kg
Mixed-layer CIN: -47 J/kg
Mixed-layer LCL: 794 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: -8 m²/s²
0-3 km storm-relative helicity: 35 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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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 24, 3:44 PM CDT, 3 hours earlier.

Area forecast discussion, Jul 24, 3:44 PM CDT, 3 hours before

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Hazardous weather outlook, Jul 24, 3:34 AM CDT, 15 hours 10 minutes before

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In the hours before

Special weather statement, Jul 24, 4:04 PM CDT, 2 hours 40 minutes before

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Local storm report, Jul 24, 4:22 PM CDT, 2 hours 22 minutes before

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Local storm report, Jul 24, 5:09 PM CDT, 1 hour 35 minutes before

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Local storm report, Jul 24, 5:15 PM CDT, 1 hour 29 minutes before

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Local storm report, Jul 24, 5:27 PM CDT, 1 hour 17 minutes before

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Special weather statement, Jul 24, 6:44 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 24, 1:32 PM CDT	Special Weather Statement	BMX	St. Clair	28 min
Jul 24, 1:37 PM CDT	Areal Flood Advisory	BMX	Jefferson	113 min
Jul 24, 2:01 PM CDT	Areal Flood Advisory	BMX	St. Clair	3 hr
Jul 24, 2:05 PM CDT	Special Weather Statement	BMX	Jefferson	25 min
Jul 24, 2:22 PM CDT	Special Weather Statement	BMX	Shelby	23 min
Jul 24, 2:33 PM CDT	Flash Flood Warning	BMX	Jefferson	3 hr
Jul 24, 2:37 PM CDT	Flash Flood Warning	BMX	Blount	3 hr
Jul 24, 2:42 PM CDT	Areal Flood Advisory	BMX	Jefferson	3 hr
Jul 24, 2:54 PM CDT	Flash Flood Warning	BMX	Jefferson	3 hr
Jul 24, 3:17 PM CDT	Areal Flood Advisory	BMX	Clay	3 hr
Jul 24, 3:30 PM CDT	Special Weather Statement	BMX	Cullman	30 min
Jul 24, 3:58 PM CDT	River Flood Warning	BMX	Jefferson	15 hr
Jul 24, 4:04 PM CDT	Special Weather Statement	BMX	Macon	26 min
Jul 24, 4:57 PM CDT	Areal Flood Advisory	BMX	Clay	3 hr
Jul 24, 5:20 PM CDT	Areal Flood Warning	BMX	Jefferson	3 hr

Nearby

Special Weather Statements in Alabama, 2017 Every special weather statement in 2017

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.