Alert archive / Alabama / Special Weather Statements in 2021

Special Weather Statement, NWS Birmingham, AL

June 19, 2021Autauga County, Perry County, Alabama

NWS Birmingham, AL issued this special weather statement at Jun 19, 2021, 9:44 AM CDT for Autauga County, Perry County, Alabama. It was in force for 46 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: Jun 19, 2021, 9:44 AM CDT (14:44 UTC)
Expired: Jun 19, 2021, 10:30 AM CDT
In force: 46 min
Issued by: NWS Birmingham, AL

Counties Autauga County, AL, Perry County, AL

The radar

The Birmingham radar (KBMX), 74 km from the middle of the area, began a volume at 14:47 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

Birmingham, AL (KBMX), launched 12:00Z, 2.7 hours before the alert went out and 75 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: 40 J/kg
Mixed-layer CIN: -57 J/kg
Mixed-layer LCL: 738 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 63 m²/s²
0-3 km storm-relative helicity: 85 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 Jun 19, 9:39 AM CDT, 5 minutes earlier.

Area forecast discussion, Jun 19, 9:39 AM CDT, 5 minutes before

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Hazardous weather outlook, Jun 19, 4:09 AM CDT, 5 hours 35 minutes before

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In the hours before

Special weather statement, Jun 19, 8:47 AM CDT, 57 minutes before

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Special weather statement, Jun 19, 9:44 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
Jun 19, 8:47 AM CDT	Special Weather Statement	BMX	Dallas, Lowndes	58 min
Jun 19, 9:23 AM CDT	Tornado Warning	BMX	Dallas, Lowndes	18 min
Jun 19, 2:27 PM CDT	Tornado Warning	BMX	Barbour	33 min
Jun 19, 2:52 PM CDT	Tornado Warning	BMX	Barbour, Bullock	13 min
Jun 19, 6:27 PM CDT	Areal Flood Advisory	BMX	Greene, Jefferson, Pickens, Sumter, Tuscaloosa	3 hr
Jun 19, 6:39 PM CDT	Flash Flood Warning	BMX	Greene, Tuscaloosa	6 hr

Nearby

Special Weather Statements in Alabama, 2021 Every special weather statement in 2021

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.