Alert archive / Alabama / Areal Flood Warnings in 2018

Areal Flood Warning 2, NWS Birmingham, AL

May 23, 2018Lee County, Alabama

NWS Birmingham, AL issued this areal flood warning at May 23, 2018, 9:08 AM CDT for Lee 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: May 23, 2018, 9:08 AM CDT (14:08 UTC)
Expired: May 23, 2018, 12:00 PM CDT
In force: 3 hr
Issued by: NWS Birmingham, AL
Area: Storm-based polygon
Flood severity: None

County Lee County, AL

The radar

The Maxwell AFB radar (KMXX), 41 km from the middle of the area, began a volume at 14:11 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, 2.1 hours before the alert went out and 148 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: 432 J/kg
Mixed-layer CIN: -34 J/kg
Mixed-layer LCL: 643 m above ground
0-6 km bulk shear: 3 kt
0-1 km storm-relative helicity: -24 m²/s²
0-3 km storm-relative helicity: -6 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 May 23, 7:09 AM CDT, 1 hour 59 minutes earlier.

Area forecast discussion, May 23, 7:09 AM CDT, 1 hour 59 minutes before

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Hazardous weather outlook, May 23, 7:51 AM CDT, 1 hour 17 minutes before

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In the hours before

Local storm report, May 23, 4:44 AM CDT, 4 hours 24 minutes before

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Local storm report, May 23, 6:27 AM CDT, 2 hours 41 minutes before

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Local storm report, May 23, 6:37 AM CDT, 2 hours 31 minutes before

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      <h1 id="headline">This service is currently unavailable.</h1>
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Local storm report, May 23, 7:30 AM CDT, 1 hour 38 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
May 23, 12:22 AM CDT	Areal Flood Advisory	BMX	Lee	3 hr
May 23, 12:59 AM CDT	Flash Flood Warning	BMX	Lee	3 hr
May 23, 1:27 AM CDT	Areal Flood Advisory	BMX	Russell	3 hr
May 23, 3:12 AM CDT	Flash Flood Warning	BMX	Lee	6 hr
May 23, 4:41 AM CDT	Flash Flood Warning	BMX	Russell	3 hr
May 23, 7:03 AM CDT	Dense Fog Advisory	BMX	Blount, Calhoun, Chambers, Cherokee, Chilton, Clay and 14 more	117 min
May 23, 7:37 AM CDT	Flash Flood Warning	BMX	Russell	3 hr
May 23, 10:51 AM CDT	Areal Flood Advisory	BMX	Autauga, Chilton, Elmore	114 min
May 23, 12:38 PM CDT	Special Weather Statement	BMX	Greene	37 min
May 23, 12:43 PM CDT	Special Weather Statement	BMX	Lowndes	32 min
May 23, 1:04 PM CDT	Areal Flood Advisory	BMX	Greene, Hale	116 min
May 23, 1:24 PM CDT	Special Weather Statement	BMX	Hale	36 min
May 23, 1:25 PM CDT	Special Weather Statement	BMX	Sumter	35 min
May 23, 1:46 PM CDT	Special Weather Statement	BMX	Tuscaloosa	29 min
May 23, 1:54 PM CDT	Areal Flood Advisory	BMX	Hale, Tuscaloosa	2 hr
May 23, 2:14 PM CDT	Areal Flood Advisory	BMX	Tuscaloosa	2 hr
May 23, 2:21 PM CDT	Special Weather Statement	BMX	Tuscaloosa	39 min
May 23, 2:49 PM CDT	Special Weather Statement	BMX	Tuscaloosa	41 min
May 23, 3:42 PM CDT	Special Weather Statement	BMX	Macon	33 min
May 23, 4:32 PM CDT	Special Weather Statement	BMX	Elmore	28 min
May 23, 4:34 PM CDT	Special Weather Statement	BMX	Macon	26 min

Nearby

Areal Flood Warnings in Alabama, 2018 Every areal flood warning in 2018

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.