Alert archive / Alabama / Flood Watches in 2024

Flood Watch 2, NWS Birmingham, AL

February 11, 202431 counties in Alabama

NWS Birmingham, AL issued this flood watch at Feb 11, 2024, 9:57 AM CST for 31 counties in Alabama. It took effect at Feb 11, 2024, 6:00 PM CST. It was in force for 22 hr.

The area

The counties it named.

The facts

Issued
Feb 11, 2024, 9:57 AM CST (15:57 UTC)
In effect from
Feb 11, 2024, 6:00 PM CST
Expired
Feb 12, 2024, 4:16 PM CST
In force
22 hr
Issued by
NWS Birmingham, AL
Flood severity
None
All 31 counties

Autauga County, AL, Bibb County, AL, Blount County, AL, Bullock County, AL, Calhoun County, AL, Chambers County, AL, Cherokee County, AL, Chilton County, AL, Clay County, AL, Cleburne County, AL, Coosa County, AL, Dallas County, AL, Elmore County, AL, Etowah County, AL, Greene County, AL, Hale County, AL, Jefferson County, AL, Lee County, AL, Lowndes County, AL, Macon County, AL, Marengo County, AL, Montgomery County, AL, Perry County, AL, Randolph County, AL, Russell County, AL, Shelby County, AL, St. Clair County, AL, Sumter County, AL, Talladega County, AL, Tallapoosa County, AL, Tuscaloosa County, AL

The radar

The Birmingham radar (KBMX), 38 km from the middle of the area, began a volume at 15:58 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, 4.0 hours before the alert went out and 40 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-pSkew-T log-p diagram, Birmingham, AL at 12:00Z on 2024-02-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 12:00Z on 2024-02-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -64 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
779 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
-64 m²/s²
0-3 km storm-relative helicity
-40 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 flood watch 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 flood watch went out at Feb 11, 6:45 AM CST, 3 hours 12 minutes earlier.

Area forecast discussion, Feb 11, 6:45 AM CST, 3 hours 12 minutes before
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Hazardous weather outlook, Feb 11, 3:39 AM CST, 6 hours 18 minutes before
Hazardous Weather Outlook
National Weather Service Birmingham AL
339 AM CST Sun Feb 11 2024

ALZ011>015-017>050-121245-
Marion-Lamar-Fayette-Winston-Walker-Blount-Etowah-Calhoun-Cherokee-
Cleburne-Pickens-Tuscaloosa-Jefferson-Shelby-St. Clair-Talladega-
Clay-Randolph-Sumter-Greene-Hale-Perry-Bibb-Chilton-Coosa-Tallapoosa-
Chambers-Marengo-Dallas-Autauga-Lowndes-Elmore-Montgomery-Macon-
Bullock-Lee-Russell-Pike-Barbour-
339 AM CST Sun Feb 11 2024

This Hazardous Weather Outlook is for the counties served by the
National Weather Service office in Birmingham.

.DAY ONE...Outlook through Tonight.

There is a risk of heavy rain that could lead to isolated flooding
today, especially for areas north of Interstate 20.

Strong to severe storms are possible across most of Central AL this
evening and through the overnight hours.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Strong to severe storms are possible through Monday morning across
all of Central Alabama.

.SPOTTER INFORMATION STATEMENT...

Limited activation of storm spotters and emergency management may be
needed today and tomorrow.

The office that day

Everything else NWS Birmingham, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 10, 7:04 PM CSTRiver Flood WarningBMXGreene, Hale, Marengo6 days
Feb 11, 5:44 AM CSTRiver Flood WarningBMXGreene, Marengo, Sumter54 hr
Feb 11, 3:01 PM CSTAreal Flood AdvisoryBMXAutauga, Dallas, Lowndes, Montgomery70 min
Feb 11, 3:20 PM CSTSpecial Weather StatementBMXMontgomery25 min
Feb 11, 3:33 PM CSTSevere Thunderstorm WarningBMXBullock, Macon, Montgomery22 min
Feb 11, 3:54 PM CSTAreal Flood AdvisoryBMXBullock, Macon, Montgomery3 hr
Feb 11, 4:11 PM CSTFlash Flood WarningBMXAutauga, Dallas, Lowndes, Montgomery2 hr
Feb 11, 5:39 PM CSTRiver Flood WarningBMXMontgomery3 days
Feb 11, 5:42 PM CSTAreal Flood AdvisoryBMXLee, Macon, Russell2 hr

Nearby

Flood Watches in Alabama, 2024Every flood watch in 2024

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.