Alert archive / Alabama / Areal Flood Advisories in 2021

Areal Flood Advisory 40, NWS Birmingham, AL

June 2, 2021Lamar County, Pickens County, Alabama

NWS Birmingham, AL issued this areal flood advisory at Jun 2, 2021, 5:50 PM CDT for Lamar County, Pickens County, Alabama. It was in force for 115 min.

The area

The counties it named.

The facts

Issued: Jun 2, 2021, 5:50 PM CDT (22:50 UTC)
Expired: Jun 2, 2021, 7:45 PM CDT
In force: 115 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon

Counties Lamar County, AL, Pickens County, AL

The radar

The Columbus AFB radar (KGWX), 46 km from the middle of the area, began a volume at 22:50 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

Little Rock, AR (KLZK), launched 12:00Z, 10.8 hours before the alert went out and 224 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: 205 J/kg
Mixed-layer CIN: -11 J/kg
Mixed-layer LCL: 551 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 39 m²/s²
0-3 km storm-relative helicity: 66 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood advisory 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 areal flood advisory went out at Jun 2, 4:43 PM CDT, 1 hour 7 minutes earlier.

Area forecast discussion, Jun 2, 4:43 PM CDT, 1 hour 7 minutes before

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Hazardous weather outlook, Jun 2, 4:14 AM CDT, 13 hours 36 minutes before

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In the hours before

Special weather statement, Jun 2, 2:57 PM CDT, 2 hours 53 minutes before

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Special weather statement, Jun 2, 3:27 PM CDT, 2 hours 23 minutes before

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Special weather statement, Jun 2, 3:48 PM CDT, 2 hours 2 minutes before

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Special weather statement, Jun 2, 5:17 PM CDT, 33 minutes before

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Special weather statement, Jun 2, 5:45 PM CDT, 5 minutes before

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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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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 2, 2:57 PM CDT	Special Weather Statement	BMX	Lamar	48 min
Jun 2, 3:27 PM CDT	Special Weather Statement	BMX	Marion	33 min
Jun 2, 3:48 PM CDT	Special Weather Statement	BMX	Winston	27 min
Jun 2, 5:17 PM CDT	Special Weather Statement	BMX	Lamar	28 min
Jun 2, 5:45 PM CDT	Special Weather Statement	BMX	Lamar	30 min
Jun 2, 6:43 PM CDT	Special Weather Statement	BMX	Pickens	32 min

Nearby

Areal Flood Advisories in Alabama, 2021 Every areal flood advisory 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.