Alert archive / Alabama / Special Weather Statements in 2023

Special Weather Statement, NWS Birmingham, AL

June 18, 2023Marengo County, Alabama

NWS Birmingham, AL issued this special weather statement at Jun 18, 2023, 7:21 AM CDT for Marengo County, Alabama. It was in force for 39 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 18, 2023, 7:21 AM CDT (12:21 UTC)
Expired: Jun 18, 2023, 8:00 AM CDT
In force: 39 min
Issued by: NWS Birmingham, AL
Hail: 0.75 in
Wind: 40

County Marengo County, AL

The radar

The Birmingham radar (KBMX), 150 km from the middle of the area, began a volume at 12:21 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, 0.4 hours before the alert went out and 150 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: 642 J/kg
Mixed-layer CIN: -163 J/kg
Mixed-layer LCL: 1263 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: -5 m²/s²
0-3 km storm-relative helicity: 192 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

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 18, 7:14 AM CDT, 7 minutes earlier.

Area forecast discussion, Jun 18, 7:14 AM CDT, 7 minutes before

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Hazardous weather outlook, Jun 18, 4:21 AM CDT, 3 hours before

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In the hours before

Local storm report, Jun 18, 2:31 AM CDT, 4 hours 50 minutes before

Preliminary Local Storm Report
National Weather Service Birmingham AL
231 AM CDT Sun Jun 18 2023

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0559 PM     Hail             Ethelsville             33.41N 88.21W
06/16/2023  E2.75 inch       Pickens            AL   Public

            Social media video of large hail falling in
            Ethelsville. There were numerous large
            stones which appear to be tennis to baseball
            size.

&&

AS

Special weather statement, Jun 18, 6:46 AM CDT, 35 minutes before

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Special weather statement, Jun 18, 7:21 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 18, 4:15 AM CDT	Dense Fog Advisory	BMX	Dallas, Lowndes, Marengo, Montgomery, Pike, Sumter	6 hr
Jun 18, 6:46 AM CDT	Special Weather Statement	BMX	Greene, Pickens	44 min
Jun 18, 7:07 AM CDT	Severe Thunderstorm Warning	BMX	Greene, Pickens, Sumter	38 min
Jun 18, 8:14 AM CDT	Special Weather Statement	BMX	Marion, Winston	46 min
Jun 18, 8:51 AM CDT	Special Weather Statement	BMX	Bibb, Chilton, Perry	54 min
Jun 18, 8:53 AM CDT	Special Weather Statement	BMX	Autauga, Dallas, Lowndes, Perry	67 min
Jun 18, 11:23 AM CDT	Severe Thunderstorm Warning	BMX	Marengo	52 min
Jun 18, 1:33 PM CDT	Flood Watch	BMX	Autauga, Bibb, Chilton, Dallas, Elmore, Greene and 8 more	17 hr

Nearby

Special Weather Statements in Alabama, 2023 Every special weather statement in 2023

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.