Alert archive / Alabama / Flood Watches in 2020
Flood Watch 2, NWS Birmingham, AL
NWS Birmingham, AL issued this flood watch at Feb 9, 2020, 3:52 AM CST for 22 counties in Alabama. It took effect at Feb 10, 2020, 6:00 AM CST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Feb 9, 2020, 3:52 AM CST (09:52 UTC)
- In effect from
- Feb 10, 2020, 6:00 AM CST
- Expired
- Feb 10, 2020, 3:40 AM CST
- In force
- Issued by
- NWS Birmingham, AL
- Flood severity
- None
All 22 counties
Bibb County, AL, Blount County, AL, Calhoun County, AL, Cherokee County, AL, Clay County, AL, Cleburne County, AL, Etowah County, AL, Fayette County, AL, Greene County, AL, Hale County, AL, Jefferson County, AL, Lamar County, AL, Marion County, AL, Pickens County, AL, Randolph County, AL, Shelby County, AL, St. Clair County, AL, Sumter County, AL, Talladega County, AL, Tuscaloosa County, AL, Walker County, AL, Winston County, AL
The radar
The Birmingham radar (KBMX), 41 km from the middle of the area, began a volume at 09:52 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 00:00Z, 9.9 hours before the alert went out and 223 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 957 m above ground
- 0-6 km bulk shear
- 83 kt
- 0-1 km storm-relative helicity
- 41 m²/s²
- 0-3 km storm-relative helicity
- 145 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 8, 11:59 PM CST, 3 hours 53 minutes earlier.
Area forecast discussion, Feb 8, 11:59 PM CST, 3 hours 53 minutes before
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</html>Hazardous weather outlook, Feb 8, 10:38 AM CST, 17 hours 14 minutes before
Hazardous Weather Outlook National Weather Service Birmingham AL 1038 AM CST Sat Feb 8 2020 ALZ011>015-017>050-091945- 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- 1038 AM CST Sat Feb 8 2020 This Hazardous Weather Outlook is for the counties served by the National Weather Service office in Birmingham. .DAY ONE...Outlook through Tonight. Many area rivers are in or expected to rise above flood stage. Please see the latest river statements for specific details on the rises and expected crest values. Fog will likely develop for areas along and east of I-65 tonight with visibilities below 1 mile at times. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Many rivers will continue to rise over the next few days. Many have reached flood stage or will reach flood stage. Please see the latest river statements for specific details on the rises and expected crest values. Periods of heavy rainfall are expected Monday through Thursday. Recent heavy rainfall has produced saturated soil conditions, and any additional rainfall could produce flash flooding issues. .SPOTTER INFORMATION STATEMENT... Activation of storm spotters and emergency management may be necessary Monday due to flooding.
The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 8, 9:26 PM CST | Dense Fog Advisory | BMX | Autauga, Barbour, Bibb, Bullock, Calhoun, Chambers and 22 more | 12 hr |
| Feb 9, 10:52 AM CST | River Flood Warning | BMX | Jefferson, Tuscaloosa, Walker | 3 days |
| Feb 9, 10:59 AM CST | River Flood Warning | BMX | Greene, Hale, Marengo, Tuscaloosa | 4 days |
| Feb 9, 10:59 AM CST | River Flood Warning | BMX | Greene, Hale, Marengo, Sumter, Tuscaloosa | 21 days |
| Feb 9, 11:14 AM CST | River Flood Warning | BMX | Bibb, Jefferson, Shelby | 57 hr |
| Feb 9, 11:20 AM CST | Areal Flood Warning | BMX | Cherokee | 30 hr |
Nearby
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.