Alert archive / Alabama / Flash Flood Watches in 2021

Flash Flood Watch 6, NWS Mobile, AL

April 23, 202112 counties in Alabama; 5 counties in Mississippi

NWS Mobile, AL issued this flash flood watch at Apr 23, 2021, 7:48 PM CDT for 12 counties in Alabama; 5 counties in Mississippi. It took effect at Apr 24, 2021, 1:00 AM CDT. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued
Apr 23, 2021, 7:48 PM CDT (00:48 UTC)
In effect from
Apr 24, 2021, 1:00 AM CDT
Expired
Apr 24, 2021, 1:00 PM CDT
In force
12 hr
Issued by
NWS Mobile, AL
Flood severity
None

Counties Baldwin County, AL, Butler County, AL, Choctaw County, AL, Clarke County, AL, Conecuh County, AL, Covington County, AL, Crenshaw County, AL, Escambia County, AL, Mobile County, AL, Monroe County, AL, Washington County, AL, Wilcox County, AL, George County, MS, Greene County, MS, Perry County, MS, Stone County, MS, Wayne County, MS

The radar

The Mobile radar (KMOB), 86 km from the middle of the area, began a volume at 00:49 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

Slidell Radar S, LA (KSIL), launched 00:00Z, 0.8 hours before the alert went out and 219 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, Slidell Radar S, LA at 00:00Z on 2021-04-24Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Slidell Radar S, LA at 00:00Z on 2021-04-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 156 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
873 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
156 m²/s²
0-3 km storm-relative helicity
263 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

808 
WGUS64 KMOB 240048
FFAMOB

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Mobile AL
748 PM CDT Fri Apr 23 2021

ALZ051>058-MSZ067-075-076-241200-
/O.NEW.KMOB.FF.A.0006.210424T0600Z-210424T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Choctaw-Washington-Clarke-Wilcox-Monroe-Conecuh-Butler-Crenshaw-
Wayne-Perry-Greene-
Including the cities of Chatom, Jackson, Homewood, Greenville,
New Augusta, Pine Hill, Butler, Thomasville, Lisman, Evergreen,
Grove Hill, Silas, Brantley, Waynesboro, Luverne, Leakesville,
Monroeville, Richton, Millry, Beaumont, Camden, and McLain
748 PM CDT Fri Apr 23 2021

...FLASH FLOOD WATCH IN EFFECT FROM 1 AM CDT SATURDAY THROUGH EARLY 
SATURDAY AFTERNOON...

The National Weather Service in Mobile has issued a

* Flash Flood Watch for Portions of Alabama, including the following 
  areas, Butler, Choctaw, Clarke, Conecuh, Crenshaw, Monroe, 
  Washington and Wilcox. Portions of southeast Mississippi, 
  including the following areas, Greene, Perry and Wayne.

* From 1 AM CDT Saturday through Saturday afternoon.

* Showers and storms with heavy rainfall will move across the watch 
  area tonight into early Saturday afternoon.  Where storms 
  repeatedly move across the same area will result in an increased 
  potential for flooding.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$
2 follow-up statements
625 
WGUS64 KMOB 240844
FFAMOB

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Mobile AL
344 AM CDT Sat Apr 24 2021

ALZ059-060-261>266-MSZ078-079-241600-
/O.EXA.KMOB.FF.A.0006.000000T0000Z-210424T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Escambia-Covington-Mobile Inland-Baldwin Inland-Mobile Central-
Baldwin Central-Mobile Coastal-Baldwin Coastal-Stone-George-
Including the cities of Wiggins, Fort Morgan, Orange Beach,
Fairhope, Flomaton, Grand Bay, Lucedale, Foley, Opp, Spanish
Fort, Theodore, Citronelle, Daphne, Andalusia, Gulf Shores,
Brewton, Mobile, Dauphin Island, Bay Minette, Prichard, Stockton,
Atmore, Saraland, and Bayou La Batre
344 AM CDT Sat Apr 24 2021

...FLASH FLOOD WATCH IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON...

The National Weather Service in Mobile has expanded the

* Flash Flood Watch to include Portions of Alabama, including the 
  following areas, Baldwin Central, Baldwin Coastal, Baldwin Inland, 
  Covington, Escambia, Mobile Central, Mobile Coastal and Mobile 
  Inland. Portions of southeast Mississippi, including the following 
  areas, George and Stone.

* Until 1 PM CDT this afternoon.

* Showers and storms with heavy rainfall are expected to move across 
  the watch area through the rest of tonight and into early this 
  afternoon.  Where storms repeatedly move across the same area will 
  result in an increased potential for flooding.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$

ALZ051>058-MSZ067-075-076-241600-
/O.CON.KMOB.FF.A.0006.000000T0000Z-210424T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Choctaw-Washington-Clarke-Wilcox-Monroe-Conecuh-Butler-Crenshaw-
Wayne-Perry-Greene-
Including the cities of Chatom, Jackson, Homewood, Greenville,
New Augusta, Pine Hill, Butler, Thomasville, Lisman, Evergreen,
Grove Hill, Silas, Brantley, Waynesboro, Luverne, Leakesville,
Monroeville, Richton, Millry, Beaumont, Camden, and McLain
344 AM CDT Sat Apr 24 2021

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 1 PM CDT THIS 
AFTERNOON...

The Flash Flood Watch continues for

* Portions of Alabama, including the following areas, Butler, 
  Choctaw, Clarke, Conecuh, Crenshaw, Monroe, Washington and Wilcox. 
  Portions of southeast Mississippi, including the following areas, 
  Greene, Perry and Wayne.

* Until 1 PM CDT this afternoon.

* Showers and storms with heavy rainfall are expected to move across 
  the watch area through the rest of tonight and into early this 
  afternoon. Where storms repeatedly move across the same area will 
  result in an increased potential for flooding.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action 
should Flash Flood Warnings be issued.

&&

$$

JEH
379 
WGUS64 KMOB 241545
FFAMOB

Flood Watch
National Weather Service Mobile AL
1045 AM CDT Sat Apr 24 2021

ALZ051>060-261>266-MSZ067-075-076-078-079-241800-
/O.CON.KMOB.FF.A.0006.000000T0000Z-210424T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Choctaw-Washington-Clarke-Wilcox-Monroe-Conecuh-Butler-Crenshaw-
Escambia-Covington-Mobile Inland-Baldwin Inland-Mobile Central-
Baldwin Central-Mobile Coastal-Baldwin Coastal-Wayne-Perry-Greene-
Stone-George-
Including the cities of Butler, Lisman, Silas, Chatom, Millry, 
Grove Hill, Jackson, Thomasville, Camden, Pine Hill, Homewood, 
Monroeville, Evergreen, Greenville, Brantley, Luverne, Atmore, 
Brewton, Flomaton, Andalusia, Opp, Citronelle, Saraland, 
Stockton, Mobile, Prichard, Theodore, Bay Minette, Daphne, 
Fairhope, Foley, Spanish Fort, Bayou La Batre, Dauphin Island, 
Grand Bay, Fort Morgan, Gulf Shores, Orange Beach, Waynesboro, 
Beaumont, New Augusta, Richton, Leakesville, McLain, Wiggins, 
and Lucedale
1045 AM CDT Sat Apr 24 2021

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 1 PM CDT THIS
AFTERNOON...

The Flash Flood Watch continues for

* Portions of Alabama and southeast Mississippi, including the 
  following areas, in Alabama, Baldwin Central, Baldwin Coastal, 
  Baldwin Inland, Butler, Choctaw, Clarke, Conecuh, Covington, 
  Crenshaw, Escambia, Mobile Central, Mobile Coastal, Mobile 
  Inland, Monroe, Washington, and Wilcox. In southeast 
  Mississippi, George, Greene, Perry, Stone, and Wayne. 

* Until 1 PM CDT this afternoon

* Some additional scattered showers and storms with heavy rainfall
  are expected to develop and move across the watch area through
  late this morning and into the early afternoon hours. Where
  storms repeatedly move across the same area with already
  saturaged ground from earlier rain, this will result in a
  continued potential for flooding.
  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 24, 3:10 AM CDTSevere Thunderstorm WarningMOBWashington65 min
Apr 24, 3:48 AM CDTAreal Flood AdvisoryMOBClarke, Washington4 hr
Apr 24, 3:51 AM CDTSevere Thunderstorm WarningMOBClarke, Monroe, Washington39 min
Apr 24, 4:25 AM CDTSevere Thunderstorm WarningMOBBaldwin, Clarke, Mobile, Monroe, Washington50 min
Apr 24, 4:27 AM CDTTornado WarningMOBWashington13 min
Apr 24, 4:31 AM CDTSevere Thunderstorm WarningMOBButler, Clarke, Conecuh, Monroe44 min
Apr 24, 4:49 AM CDTSpecial Marine WarningMOB56 min
Apr 24, 5:09 AM CDTSevere Thunderstorm WarningMOBBaldwin, Butler, Clarke, Conecuh, Covington, Escambia and 2 more51 min
Apr 24, 5:14 AM CDTSevere Thunderstorm WarningMOBBaldwin, Mobile46 min
Apr 24, 5:42 AM CDTSpecial Marine WarningMOB93 min
Apr 24, 5:42 AM CDTSpecial Weather StatementMOBWilcox48 min
Apr 24, 5:51 AM CDTSevere Thunderstorm WarningMOBButler, Conecuh, Covington, Crenshaw, Escambia54 min
Apr 24, 5:57 AM CDTSevere Thunderstorm WarningMOBBaldwin, Mobile63 min
Apr 24, 6:20 AM CDTFlash Flood WarningMOBBaldwin, Mobile4 hr
Apr 24, 6:21 AM CDTTornado WarningMOBCovington, Crenshaw24 min
Apr 24, 6:42 AM CDTSevere Thunderstorm WarningMOBConecuh, Covington, Crenshaw, Escambia48 min
Apr 24, 6:58 AM CDTSevere Thunderstorm WarningMOBBaldwin47 min
Apr 24, 7:00 AM CDTSpecial Weather StatementMOBMobile30 min
Apr 24, 7:30 AM CDTSpecial Weather StatementMOBCovington45 min
Apr 24, 9:22 AM CDTFlash Flood WarningMOBClarke6 hr
Apr 24, 11:16 AM CDTFlash Flood WarningMOBMobile5 hr
Apr 24, 11:21 AM CDTSpecial Weather StatementMOBEscambia39 min
Apr 24, 12:37 PM CDTSevere Thunderstorm WarningMOBClarke, Mobile, Washington38 min
Apr 24, 12:46 PM CDTSevere Thunderstorm WarningMOBCovington44 min
Apr 24, 12:56 PM CDTSevere Thunderstorm WarningMOBBaldwin, Clarke, Mobile, Monroe, Washington39 min
Apr 24, 1:17 PM CDTTornado WarningMOBCovington18 min
Apr 24, 1:19 PM CDTSevere Thunderstorm WarningMOBConecuh, Escambia, Monroe45 min
Apr 24, 1:55 PM CDTSevere Thunderstorm WarningMOBCovington26 min
Apr 24, 2:29 PM CDTSevere Thunderstorm WarningMOBConecuh, Monroe46 min
Apr 24, 2:52 PM CDTTornado WarningMOBConecuh38 min
Apr 24, 2:58 PM CDTSpecial Weather StatementMOBChoctaw47 min
Apr 24, 3:15 PM CDTSevere Thunderstorm WarningMOBClarke45 min
Apr 24, 3:20 PM CDTSevere Thunderstorm WarningMOBButler, Covington, Crenshaw40 min
Apr 24, 3:27 PM CDTTornado WarningMOBClarke25 min
Apr 24, 3:41 PM CDTSevere Thunderstorm WarningMOBMonroe, Wilcox49 min
Apr 24, 3:43 PM CDTAreal Flood WarningMOBChoctaw, Clarke, Monroe, Washington, Wilcox2 hr
Apr 24, 3:43 PM CDTSevere Thunderstorm WarningMOBClarke, Washington47 min
Apr 24, 3:46 PM CDTTornado WarningMOBMonroe, Wilcox44 min
Apr 24, 3:59 PM CDTSevere Thunderstorm WarningMOBWashington46 min
Apr 24, 4:05 PM CDTAreal Flood WarningMOBButler, Conecuh, Covington, Crenshaw, Monroe, Wilcox4 hr
Apr 24, 4:10 PM CDTSevere Thunderstorm WarningMOBClarke, Conecuh, Monroe50 min
Apr 24, 4:10 PM CDTTornado WarningMOBMonroe, Wilcox35 min
Apr 24, 4:28 PM CDTTornado WarningMOBButler27 min
Apr 24, 4:32 PM CDTSevere Thunderstorm WarningMOBClarke, Washington43 min
Apr 24, 4:34 PM CDTSevere Thunderstorm WarningMOBWashington20 min
Apr 24, 4:47 PM CDTSevere Thunderstorm WarningMOBButler, Covington, Crenshaw43 min
Apr 24, 4:51 PM CDTSevere Thunderstorm WarningMOBButler, Conecuh, Monroe39 min
Apr 24, 4:54 PM CDTSevere Thunderstorm WarningMOBButler, Crenshaw51 min
Apr 24, 4:59 PM CDTSevere Thunderstorm WarningMOBMonroe46 min
Apr 24, 5:20 PM CDTSevere Thunderstorm WarningMOBMobile40 min
Apr 24, 5:21 PM CDTSevere Thunderstorm WarningMOBButler, Covington, Crenshaw39 min
Apr 24, 5:24 PM CDTSevere Thunderstorm WarningMOBConecuh, Monroe66 min
Apr 24, 5:56 PM CDTSevere Thunderstorm WarningMOBCovington, Crenshaw64 min
Apr 24, 5:57 PM CDTSevere Thunderstorm WarningMOBBaldwin, Mobile48 min
Apr 24, 6:05 PM CDTAreal Flood WarningMOBConecuh, Covington110 min
Apr 24, 6:24 PM CDTSevere Thunderstorm WarningMOBBaldwin, Conecuh, Escambia, Monroe29 min
Apr 24, 6:27 PM CDTSevere Thunderstorm WarningMOBBaldwin, Escambia48 min
Apr 24, 6:29 PM CDTSevere Thunderstorm WarningMOBConecuh31 min
Apr 24, 6:33 PM CDTAreal Flood WarningMOBBaldwin, Conecuh, Covington, Escambia, Mobile, Monroe3 hr
Apr 23, 9:00 PM CDTSpecial Weather StatementMOBGeorge, Greene, Stone45 min
Apr 23, 9:44 PM CDTSpecial Weather StatementMOBWayne46 min
Apr 23, 11:09 PM CDTSpecial Weather StatementMOBPerry51 min
Apr 24, 1:12 AM CDTSevere Thunderstorm WarningMOBGreene, Perry63 min
Apr 24, 2:10 AM CDTSevere Thunderstorm WarningMOBGreene, Perry65 min
Apr 24, 2:23 AM CDTAreal Flood AdvisoryMOBGreene, Perry3 hr
Apr 24, 3:26 AM CDTFlash Flood WarningMOBGreene, Perry5 hr
Apr 24, 3:49 AM CDTSevere Thunderstorm WarningMOBGeorge, Greene, Perry, Stone41 min
Apr 24, 9:42 AM CDTRiver Flood WarningMOBGeorge, Greene, Wayne21 days
Apr 24, 9:44 AM CDTRiver Flood WarningMOBGeorge, Greene, Perry6 days
Apr 24, 9:46 AM CDTRiver Flood WarningMOBGeorge, Greene, Jackson21 days

Nearby

Flash Flood Watches in Alabama, 2021Flash Flood Watches in Mississippi, 2021Every flash flood watch 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.