Alert archive / Alabama / Areal Flood Warnings in 2017

Areal Flood Warning 7, NWS Birmingham, AL

June 22, 2017Autauga County, Lowndes County, Alabama

NWS Birmingham, AL issued this areal flood warning at Jun 22, 2017, 10:29 AM CDT for Autauga County, Lowndes County, Alabama. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 22, 2017, 10:29 AM CDT (15:29 UTC)
Expired: Jun 22, 2017, 1:30 PM CDT
In force: 3 hr
Issued by: NWS Birmingham, AL
Area: Storm-based polygon
Flood severity: None

Counties Autauga County, AL, Lowndes County, AL

The radar

The Maxwell AFB radar (KMXX), 83 km from the middle of the area, began a volume at 15:31 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

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 3.5 hours before the alert went out and 231 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: 191 J/kg
Mixed-layer CIN: -15 J/kg
Mixed-layer LCL: 613 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 102 m²/s²
0-3 km storm-relative helicity: 149 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.8

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood warning 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 warning went out at Jun 22, 6:55 AM CDT, 3 hours 34 minutes earlier.

Area forecast discussion, Jun 22, 6:55 AM CDT, 3 hours 34 minutes before

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Hazardous weather outlook, Jun 22, 5:00 AM CDT, 5 hours 29 minutes before

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In the hours before

Local storm report, Jun 22, 7:28 AM CDT, 3 hours 1 minute before

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Local storm report, Jun 22, 7:35 AM CDT, 2 hours 54 minutes before

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Local storm report, Jun 22, 7:37 AM CDT, 2 hours 52 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 21, 11:27 PM CDT	Areal Flood Advisory	BMX	Lowndes	3 hr
Jun 22, 4:32 AM CDT	Flash Flood Warning	BMX	Lowndes	6 hr
Jun 22, 5:38 AM CDT	Areal Flood Advisory	BMX	Montgomery	4 hr
Jun 22, 8:37 AM CDT	Areal Flood Advisory	BMX	Greene, Hale, Marengo, Pickens, Sumter	3 hr
Jun 22, 10:23 AM CDT	Areal Flood Advisory	BMX	Bibb, Perry, Tuscaloosa	3 hr
Jun 22, 11:28 AM CDT	Areal Flood Advisory	BMX	Greene, Hale, Marengo	3 hr
Jun 22, 11:36 AM CDT	Areal Flood Advisory	BMX	Jefferson, Walker	3 hr
Jun 22, 12:27 PM CDT	Tornado Warning	BMX	Jefferson	33 min
Jun 22, 12:42 PM CDT	Tornado Warning Tornado observed	BMX	Jefferson	11 min
Jun 22, 12:49 PM CDT	Areal Flood Advisory	BMX	Jefferson, St. Clair, Shelby	3 hr
Jun 22, 12:55 PM CDT	Tornado Warning	BMX	Bibb, Tuscaloosa	38 min
Jun 22, 1:20 PM CDT	Tornado Warning	BMX	Jefferson	10 min
Jun 22, 1:44 PM CDT	Areal Flood Advisory	BMX	Bibb, Perry	3 hr
Jun 22, 2:29 PM CDT	Areal Flood Advisory	BMX	Bibb, Jefferson, Tuscaloosa	3 hr
Jun 22, 2:43 PM CDT	Tornado Warning Tornado observed	BMX	Jefferson, Shelby	12 min
Jun 22, 2:56 PM CDT	Tornado Warning	BMX	Clay, Tallapoosa	22 min
Jun 22, 3:13 PM CDT	Areal Flood Advisory	BMX	Autauga, Elmore, Lowndes, Montgomery	2 hr
Jun 22, 3:38 PM CDT	Tornado Warning	BMX	Tallapoosa	41 min
Jun 22, 3:54 PM CDT	Areal Flood Warning	BMX	Autauga, Bibb, Chilton, Coosa, Elmore, Lowndes and 1 more	3 hr
Jun 22, 3:58 PM CDT	Areal Flood Warning	BMX	Bibb, Blount, Jefferson, St. Clair, Shelby, Talladega and 2 more	3 hr
Jun 22, 4:19 PM CDT	Areal Flood Warning	BMX	Dallas, Greene, Hale, Marengo, Perry	3 hr

Nearby

Areal Flood Warnings in Alabama, 2017 Every areal flood warning 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.