Alert archive / Alabama / Flash Flood Watches in 2021
Flash Flood Watch 9, NWS Mobile, AL
NWS Mobile, AL issued this flash flood watch at May 11, 2021, 3:22 AM CDT for 5 counties in Mississippi; Escambia County, Santa Rosa County, Florida; 8 counties in Alabama. It took effect at May 11, 2021, 1:00 PM CDT. It was in force for 26 hr.
The area
The counties it named.
The facts
- Issued
- May 11, 2021, 3:22 AM CDT (08:22 UTC)
- In effect from
- May 11, 2021, 1:00 PM CDT
- Expired
- May 12, 2021, 3:07 PM CDT
- In force
- 26 hr
- Issued by
- NWS Mobile, AL
- Flood severity
- None
Counties Baldwin County, AL, Choctaw County, AL, Clarke County, AL, Conecuh County, AL, Escambia County, AL, Mobile County, AL, Monroe County, AL, Washington County, AL, Escambia County, FL, Santa Rosa County, FL, George County, MS, Greene County, MS, Perry County, MS, Stone County, MS, Wayne County, MS
The radar
The Mobile radar (KMOB), 59 km from the middle of the area, began a volume at 08:21 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, 8.4 hours before the alert went out and 191 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
- 864 J/kg
- Mixed-layer CIN
- -38 J/kg
- Mixed-layer LCL
- 705 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 97 m²/s²
- 0-3 km storm-relative helicity
- 134 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 7.0
The text
As transmitted.
466 WGUS64 KMOB 110822 FFAMOB URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Mobile AL 322 AM CDT Tue May 11 2021 ALZ261>266-MSZ075-076-078-079-111700- /O.NEW.KMOB.FF.A.0009.210511T1800Z-210512T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Mobile Inland-Baldwin Inland-Mobile Central-Baldwin Central- Mobile Coastal-Baldwin Coastal-Perry-Greene-Stone-George- Including the cities of Wiggins, Fort Morgan, Orange Beach, Fairhope, New Augusta, Grand Bay, Lucedale, Foley, Spanish Fort, Theodore, Citronelle, Leakesville, Daphne, Gulf Shores, Mobile, Dauphin Island, Bay Minette, Richton, Prichard, Stockton, Beaumont, Saraland, McLain, and Bayou La Batre 322 AM CDT Tue May 11 2021 ...FLASH FLOOD WATCH IN EFFECT FROM 1 PM CDT THIS AFTERNOON THROUGH WEDNESDAY AFTERNOON... The National Weather Service in Mobile has issued a * Flash Flood Watch for Portions of southwest Alabama, including the following areas, Baldwin Central, Baldwin Coastal, Baldwin Inland, Mobile Central, Mobile Coastal and Mobile Inland. Portions of southeast Mississippi, including the following areas, George, Greene, Perry and Stone. * From 1 PM CDT this afternoon through Wednesday afternoon. * Heavy rainfall associated with several rounds of showers and thunderstorms will occur across the area this afternoon into Wednesday afternoon. Training of thunderstorms could lead to prolonged periods of heavy rainfall, and may result in flash flooding of low lying and urban areas. Rainfall totals of 1" to 3" may occur, with locally higher totals possible where heavy showers and thunderstorms train over the same area. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ MM
5 follow-up statements
554 WGUS64 KMOB 111753 FFAMOB URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Mobile AL 1253 PM CDT Tue May 11 2021 ALZ051>053-055-056-059-FLZ201>204-MSZ067-120200- /O.EXB.KMOB.FF.A.0009.210511T1800Z-210512T2300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Choctaw-Washington-Clarke-Monroe-Conecuh-Escambia-Escambia Inland- Escambia Coastal-Santa Rosa Inland-Santa Rosa Coastal-Wayne- Including the cities of Butler, Lisman, Silas, Chatom, Millry, Grove Hill, Jackson, Thomasville, Homewood, Monroeville, Evergreen, Atmore, Brewton, Flomaton, Century, Molino, Walnut Hill, Beulah, Ensley, Fort Pickens, Pensacola, Pensacola Beach, Perdido Bay, Jay, Milton, Bagdad, Gulf Breeze, Navarre, and Waynesboro 1253 PM CDT Tue May 11 2021 ...FLASH FLOOD WATCH IN EFFECT THROUGH WEDNESDAY AFTERNOON... The National Weather Service in Mobile has expanded the * Flash Flood Watch to include portions of Alabama, northwest Florida, and southeast Mississippi, including the following areas, in Alabama, Choctaw, Clarke, Conecuh, Escambia, Monroe, and Washington. In northwest Florida, Escambia Coastal, Escambia Inland, Santa Rosa Coastal, and Santa Rosa Inland. In southeast Mississippi, Wayne. * Through Wednesday afternoon * Heavy rainfall associated with several rounds of showers and thunderstorms will occur across the area this afternoon into Wednesday afternoon. Training of thunderstorms could lead to prolonged periods of heavy rainfall, and may result in flash flooding of low lying and urban areas. Rainfall totals of 1" to 3" may occur, with locally higher totals possible where heavy showers and thunderstorms train over the same area. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ ALZ261>266-MSZ075-076-078-079-120200- /O.EXT.KMOB.FF.A.0009.210511T1800Z-210512T2300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Mobile Inland-Baldwin Inland-Mobile Central-Baldwin Central- Mobile Coastal-Baldwin Coastal-Perry-Greene-Stone-George- Including the cities of 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, Beaumont, New Augusta, Richton, Leakesville, McLain, Wiggins, and Lucedale 1253 PM CDT Tue May 11 2021 ...FLASH FLOOD WATCH NOW IN EFFECT THROUGH WEDNESDAY AFTERNOON... The Flash Flood Watch is now in effect for * Portions of southwest Alabama and southeast Mississippi, including the following areas, in southwest Alabama, Baldwin Central, Baldwin Coastal, Baldwin Inland, Mobile Central, Mobile Coastal, and Mobile Inland. In southeast Mississippi, George, Greene, Perry, and Stone. * Through Wednesday afternoon * Heavy rainfall associated with several rounds of showers and thunderstorms will occur across the area this afternoon into Wednesday afternoon. Training of thunderstorms could lead to prolonged periods of heavy rainfall, and may result in flash flooding of low lying and urban areas. Rainfall totals of 1" to 3" may occur, with locally higher totals possible where heavy showers and thunderstorms train over the same area. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
194 WGUS64 KMOB 120210 FFAMOB Flood Watch National Weather Service Mobile AL 910 PM CDT Tue May 11 2021 ALZ051>053-055-056-059-261>266-FLZ201>204-MSZ067-075-076-078-079- 121200- /O.CON.KMOB.FF.A.0009.000000T0000Z-210512T2300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Choctaw-Washington-Clarke-Monroe-Conecuh-Escambia-Mobile Inland- Baldwin Inland-Mobile Central-Baldwin Central-Mobile Coastal- Baldwin Coastal-Escambia Inland-Escambia Coastal- Santa Rosa Inland-Santa Rosa Coastal-Wayne-Perry-Greene-Stone- George- Including the cities of Butler, Lisman, Silas, Chatom, Millry, Grove Hill, Jackson, Thomasville, Homewood, Monroeville, Evergreen, Atmore, Brewton, Flomaton, 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, Century, Molino, Walnut Hill, Beulah, Ensley, Fort Pickens, Pensacola, Pensacola Beach, Perdido Bay, Jay, Milton, Bagdad, Gulf Breeze, Navarre, Waynesboro, Beaumont, New Augusta, Richton, Leakesville, McLain, Wiggins, and Lucedale 910 PM CDT Tue May 11 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY AFTERNOON... The Flash Flood Watch continues for * Portions of Alabama, northwest Florida, and southeast Mississippi, including the following areas, in Alabama, Baldwin Central, Baldwin Coastal, Baldwin Inland, Choctaw, Clarke, Conecuh, Escambia, Mobile Central, Mobile Coastal, Mobile Inland, Monroe, and Washington. In northwest Florida, Escambia Coastal, Escambia Inland, Santa Rosa Coastal, and Santa Rosa Inland. In southeast Mississippi, George, Greene, Perry, Stone, and Wayne. * Through Wednesday afternoon * Heavy rainfall associated with several rounds of showers and thunderstorms will occur across the area this afternoon into Wednesday afternoon. Training of thunderstorms could lead to prolonged periods of heavy rainfall, and may result in flash flooding of low lying and urban areas. Rainfall totals of 1" to 3" may occur, with locally higher totals possible where heavy showers and thunderstorms train over the same area. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
271 WGUS64 KMOB 121023 FFAMOB Flood Watch National Weather Service Mobile AL 523 AM CDT Wed May 12 2021 ALZ051>053-055-056-MSZ067-075-076-121130- /O.CAN.KMOB.FF.A.0009.000000T0000Z-210512T2300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Choctaw-Washington-Clarke-Monroe-Conecuh-Wayne-Perry-Greene- Including the cities of Chatom, Evergreen, Beaumont, Grove Hill, Millry, Leakesville, Silas, Homewood, Waynesboro, New Augusta, Richton, McLain, Monroeville, Butler, Jackson, Thomasville, and Lisman 523 AM CDT Wed May 12 2021 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for Portions of Alabama, including the following areas, Choctaw, Clarke, Conecuh, Monroe and Washington. Portions of southeast Mississippi, including the following areas, Greene, Perry and Wayne. has been cancelled. The Flood Watch is cancelled, shower and thunderstorm activity capable of heavy rainfall rates exceeding flash flood guidance has shifted to the south and east, with no additional heavy rainfall expected. $$ ALZ261>266-MSZ078-079-122000- /O.CON.KMOB.FF.A.0009.000000T0000Z-210512T2300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Mobile Inland-Baldwin Inland-Mobile Central-Baldwin Central- Mobile Coastal-Baldwin Coastal-Stone-George- Including the cities of Foley, Dauphin Island, Wiggins, Orange Beach, Lucedale, Stockton, Fort Morgan, Bay Minette, Mobile, Spanish Fort, Citronelle, Fairhope, Theodore, Grand Bay, Saraland, Bayou La Batre, Daphne, Prichard, and Gulf Shores 523 AM CDT Wed May 12 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THIS AFTERNOON... The Flash Flood Watch continues for * Portions of southwest Alabama, including the following areas, Baldwin Central, Baldwin Coastal, Baldwin Inland, Mobile Central, Mobile Coastal and Mobile Inland. Portions of southeast Mississippi, including the following areas, George and Stone. * Through this afternoon. * Heavy rainfall has occurred this morning across the watch area. Additional showers and thunderstorms remain possible this afternoon and may continue to pose a threat for heavy rainfall. Training of thunderstorms could lead to prolonged periods of heavy rainfall, and may result in flash flooding of low lying and urban areas. Additional rainfall totals of one to two inches is possible, with locally higher amounts to three inches. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ ALZ059-FLZ201>204-122000- /O.CON.KMOB.FF.A.0009.000000T0000Z-210512T2300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Escambia-Escambia Inland-Escambia Coastal-Santa Rosa Inland-Santa Rosa Coastal- Including the cities of Bagdad, Brewton, Atmore, Century, Jay, Pensacola Beach, Fort Pickens, Pensacola, Ensley, Perdido Bay, Flomaton, Gulf Breeze, Beulah, Walnut Hill, Molino, Navarre, and Milton 523 AM CDT Wed May 12 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THIS AFTERNOON... The Flash Flood Watch continues for * Portions of south central Alabama, including the following area, Escambia. Portions of northwest Florida, including the following areas, Escambia Coastal, Escambia Inland, Santa Rosa Coastal and Santa Rosa Inland. * Through this afternoon. * Heavy rainfall has occurred this morning across the watch area. Additional showers and thunderstorms remain possible this afternoon and may continue to pose a threat for heavy rainfall. Training of thunderstorms could lead to prolonged periods of heavy rainfall, and may result in flash flooding of low lying and urban areas. Additional rainfall totals of one to two inches is possible, with locally higher amounts to three inches. $$ MM
556 WGUS64 KMOB 121845 FFAMOB Flood Watch National Weather Service Mobile AL 145 PM CDT Wed May 12 2021 ALZ261>266-MSZ078-079-122300- /O.CON.KMOB.FF.A.0009.000000T0000Z-210512T2300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Mobile Inland-Baldwin Inland-Mobile Central-Baldwin Central- Mobile Coastal-Baldwin Coastal-Stone-George- Including the cities of Foley, Dauphin Island, Wiggins, Orange Beach, Lucedale, Stockton, Fort Morgan, Bay Minette, Mobile, Spanish Fort, Citronelle, Fairhope, Theodore, Grand Bay, Saraland, Bayou La Batre, Daphne, Prichard, and Gulf Shores 145 PM CDT Wed May 12 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 6 PM CDT THIS EVENING... The Flash Flood Watch continues for * Portions of southwest Alabama, including the following areas, Baldwin Central, Baldwin Coastal, Baldwin Inland, Mobile Central, Mobile Coastal and Mobile Inland. Portions of southeast Mississippi, including the following areas, George and Stone. * Until 6 PM CDT this evening. * Heavy rainfall has occurred this morning across the watch area. Additional showers and thunderstorms remain possible this afternoon and may continue to pose a threat for heavy rainfall. Training of thunderstorms could lead to prolonged periods of heavy rainfall, and may result in flash flooding of low lying and urban areas. Additional rainfall totals of one to two inches is possible, with locally higher amounts to three inches. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ ALZ059-FLZ201>204-122300- /O.CON.KMOB.FF.A.0009.000000T0000Z-210512T2300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Escambia-Escambia Inland-Escambia Coastal-Santa Rosa Inland-Santa Rosa Coastal- Including the cities of Bagdad, Brewton, Atmore, Century, Jay, Pensacola Beach, Fort Pickens, Pensacola, Ensley, Perdido Bay, Flomaton, Gulf Breeze, Beulah, Walnut Hill, Molino, Navarre, and Milton 145 PM CDT Wed May 12 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 6 PM CDT THIS EVENING... The Flash Flood Watch continues for * Portions of south central Alabama, including the following area, Escambia. Portions of northwest Florida, including the following areas, Escambia Coastal, Escambia Inland, Santa Rosa Coastal and Santa Rosa Inland. * Until 6 PM CDT this evening. * Heavy rainfall has occurred this morning across the watch area. Additional showers and thunderstorms remain possible this afternoon and may continue to pose a threat for heavy rainfall. Training of thunderstorms could lead to prolonged periods of heavy rainfall, and may result in flash flooding of low lying and urban areas. Additional rainfall totals of one to two inches is possible, with locally higher amounts to three inches. $$ Black
482 WGUS64 KMOB 122007 FFAMOB Flood Watch National Weather Service Mobile AL 307 PM CDT Wed May 12 2021 ALZ059-261>266-FLZ201>204-MSZ078-079-122115- /O.CAN.KMOB.FF.A.0009.000000T0000Z-210512T2300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Escambia-Mobile Inland-Baldwin Inland-Mobile Central-Baldwin Central-Mobile Coastal-Baldwin Coastal-Escambia Inland-Escambia Coastal-Santa Rosa Inland-Santa Rosa Coastal-Stone-George- Including the cities of Wiggins, Fort Morgan, Jay, Pensacola Beach, Orange Beach, Perdido Bay, Fairhope, Flomaton, Grand Bay, Lucedale, Walnut Hill, Foley, Spanish Fort, Theodore, Fort Pickens, Citronelle, Beulah, Daphne, Gulf Shores, Pensacola, Brewton, Mobile, Dauphin Island, Bay Minette, Gulf Breeze, Prichard, Navarre, Stockton, Atmore, Century, Bagdad, Ensley, Saraland, Bayou La Batre, Molino, and Milton 307 PM CDT Wed May 12 2021 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for Portions of Alabama, including the following areas, Baldwin Central, Baldwin Coastal, Baldwin Inland, Escambia, Mobile Central, Mobile Coastal and Mobile Inland. Portions of northwest Florida, including the following areas, Escambia Coastal, Escambia Inland, Santa Rosa Coastal and Santa Rosa Inland. Portions of southeast Mississippi, including the following areas, George and Stone. has been cancelled. The Flood Watch is cancelled. Flooding is no longer expected to pose a threat. Please continue to heed remaining road closures. $$ Black
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 11, 11:49 AM CDT | Special Weather Statement | MOB | George | 41 min |
| May 11, 12:12 PM CDT | Special Weather Statement | MOB | Greene | 48 min |
| May 11, 12:54 PM CDT | Areal Flood Advisory | MOB | George, Greene | 3 hr |
| May 11, 1:29 PM CDT | Special Weather Statement | MOB | Escambia | 46 min |
| May 11, 2:14 PM CDT | Special Weather Statement | MOB | Escambia | 46 min |
| May 11, 2:36 PM CDT | Areal Flood Advisory | MOB | Escambia, Okaloosa, Santa Rosa | 3 hr |
| May 11, 2:51 PM CDT | Special Weather Statement | MOB | Santa Rosa | 39 min |
| May 11, 3:31 PM CDT | Special Weather Statement | MOB | Okaloosa | 59 min |
| May 11, 3:58 PM CDT | Areal Flood Advisory | MOB | Okaloosa, Santa Rosa | 3 hr |
| May 11, 4:09 PM CDT | Flash Flood Warning | MOB | Okaloosa | 3 hr |
| May 11, 9:46 AM CDT | River Flood Warning | MOB | Clarke, Washington | 23 hr |
| May 11, 12:37 PM CDT | Special Marine Warning | MOB | 83 min | |
| May 11, 12:49 PM CDT | Special Weather Statement | MOB | Washington | 41 min |
| May 11, 1:44 PM CDT | Special Marine Warning | MOB | 46 min | |
| May 11, 2:02 PM CDT | Special Marine Warning | MOB | 58 min | |
| May 11, 2:59 PM CDT | Special Marine Warning | MOB | 2 hr | |
| May 11, 4:52 PM CDT | Special Marine Warning | MOB | 57 min | |
| May 11, 5:18 PM CDT | Special Marine Warning | MOB | 32 min | |
| May 11, 6:03 PM CDT | Special Marine Warning | MOB | 57 min |
Nearby
Flash Flood Watches in Alabama, 2021Flash Flood Watches in Mississippi, 2021Flash Flood Watches in Florida, 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.