Alert archive / Mississippi / Flash Flood Watches in 2021
Flash Flood Watch 7, NWS Jackson, MS
NWS Jackson, MS issued this flash flood watch at Apr 23, 2021, 3:22 PM CDT for 23 counties in Mississippi; 5 parishes in Louisiana. It took effect at Apr 23, 2021, 6:00 PM CDT. It was in force for 11 hr.
The area
The counties it named.
The facts
- Issued
- Apr 23, 2021, 3:22 PM CDT (20:22 UTC)
- In effect from
- Apr 23, 2021, 6:00 PM CDT
- Expired
- Apr 24, 2021, 5:07 AM CDT
- In force
- 11 hr
- Issued by
- NWS Jackson, MS
- Flood severity
- None
All 28 counties
Catahoula Parish, LA, Concordia Parish, LA, Franklin Parish, LA, Madison Parish, LA, Tensas Parish, LA, Adams County, MS, Claiborne County, MS, Clarke County, MS, Copiah County, MS, Covington County, MS, Forrest County, MS, Franklin County, MS, Hinds County, MS, Jasper County, MS, Jefferson County, MS, Jefferson Davis County, MS, Jones County, MS, Lamar County, MS, Lauderdale County, MS, Lawrence County, MS, Lincoln County, MS, Marion County, MS, Newton County, MS, Rankin County, MS, Scott County, MS, Simpson County, MS, Smith County, MS, Warren County, MS
The radar
The Jackson/Brandon,MS radar (KDGX), 52 km from the middle of the area, began a volume at 20:26 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
Jackson, MS (KJAN), launched 12:00Z, 8.4 hours before the alert went out and 54 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
- 1652 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 165 m²/s²
- 0-3 km storm-relative helicity
- 229 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
890 WGUS64 KJAN 232022 FFAJAN URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Jackson MS 322 PM CDT Fri Apr 23 2021 LAZ016-023>026-MSZ047>066-072>074-240430- /O.NEW.KJAN.FF.A.0007.210423T2300Z-210424T1400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Madison LA-Franklin LA-Catahoula-Tensas-Concordia-Warren-Hinds- Rankin-Scott-Newton-Lauderdale-Claiborne-Copiah-Simpson-Smith-Jasper- Clarke-Jefferson-Adams-Franklin MS-Lincoln-Lawrence-Jefferson Davis- Covington-Jones-Marion-Lamar-Forrest- Including the cities of Conehatta, Jackson, Richland, Union, Purvis, Lumberton, Winnsboro, Brandon, Stonewall, Pearl, Ferriday, Vicksburg, Forest, Bude, Vidalia, Collins, St. Joseph, Meridian, Hazlehurst, Taylorsville, Harrisonburg, New Hebron, Waterproof, Meadville, West Hattiesburg, Monticello, Fayette, Mendenhall, Heidelberg, Roxie, Hattiesburg, Quitman, Decatur, West Ferriday, Brookhaven, Shubuta, Magee, Bassfield, Raleigh, Port Gibson, Jonesville, Crystal Springs, Tallulah, Wesson, Natchez, Prentiss, Newton, Bay Springs, Mount Olive, Newellton, Laurel, Morton, and Columbia 322 PM CDT Fri Apr 23 2021 ...FLASH FLOOD WATCH IN EFFECT THROUGH SATURDAY MORNING... The National Weather Service in Jackson has issued a * Flash Flood Watch for portions of northeast Louisiana and Mississippi, including the following areas, in northeast Louisiana, Catahoula, Concordia, Franklin LA, Madison LA and Tensas. In Mississippi, Adams, Claiborne, Clarke, Copiah, Covington, Forrest, Franklin MS, Hinds, Jasper, Jefferson, Jefferson Davis, Jones, Lamar, Lauderdale, Lawrence, Lincoln, Marion, Newton, Rankin, Scott, Simpson, Smith and Warren. * Through Saturday morning * A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation.You should monitor later forecasts and be prepared to take action should flash flood warnings be issued. $$ 19
3 follow-up statements
041 WGUS64 KJAN 240231 FFAJAN Flood Watch National Weather Service Jackson MS 931 PM CDT Fri Apr 23 2021 LAZ016-023>026-MSZ047>066-072>074-241045- /O.CON.KJAN.FF.A.0007.000000T0000Z-210424T1400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Madison LA-Franklin LA-Catahoula-Tensas-Concordia-Warren-Hinds- Rankin-Scott-Newton-Lauderdale-Claiborne-Copiah-Simpson-Smith-Jasper- Clarke-Jefferson-Adams-Franklin MS-Lincoln-Lawrence-Jefferson Davis- Covington-Jones-Marion-Lamar-Forrest- Including the cities of Conehatta, Jackson, Richland, Union, Purvis, Lumberton, Winnsboro, Brandon, Stonewall, Pearl, Ferriday, Vicksburg, Forest, Bude, Vidalia, Collins, St. Joseph, Meridian, Hazlehurst, Taylorsville, Harrisonburg, New Hebron, Waterproof, Meadville, West Hattiesburg, Monticello, Fayette, Mendenhall, Heidelberg, Roxie, Hattiesburg, Quitman, Decatur, West Ferriday, Brookhaven, Shubuta, Magee, Bassfield, Raleigh, Port Gibson, Jonesville, Crystal Springs, Tallulah, Wesson, Natchez, Prentiss, Newton, Bay Springs, Mount Olive, Newellton, Laurel, Morton, and Columbia 931 PM CDT Fri Apr 23 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 9 AM CDT SATURDAY... The Flash Flood Watch continues for * Portions of northeast Louisiana and Mississippi, including the following areas, in northeast Louisiana, Catahoula, Concordia, Franklin LA, Madison LA and Tensas. In Mississippi, Adams, Claiborne, Clarke, Copiah, Covington, Forrest, Franklin MS, Hinds, Jasper, Jefferson, Jefferson Davis, Jones, Lamar, Lauderdale, Lawrence, Lincoln, Marion, Newton, Rankin, Scott, Simpson, Smith and Warren. * Until 9 AM CDT Saturday * A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation.You should monitor later forecasts and be prepared to take action should flash flood warnings be issued. * Rainfall amounts of 2 to 4 inches with amounts up to 6 inches will likely result in areas of flash flooding. Numerous roads may become flooded, closed or washed out. Minor to moderate river flooding is also possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... Do not enter or cross flowing water or water of unknown depth. Stay away or be swept away. River banks and culverts can become unstable and unsafe. && $$ 22
356 WGUS64 KJAN 240854 FFAJAN Flood Watch National Weather Service Jackson MS 354 AM CDT Sat Apr 24 2021 LAZ016-023>026-MSZ047>049-053-054-059>061-241000- /O.CAN.KJAN.FF.A.0007.000000T0000Z-210424T1400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Madison LA-Franklin LA-Catahoula-Tensas-Concordia-Warren-Hinds- Rankin-Claiborne-Copiah-Jefferson-Adams-Franklin MS- Including the cities of Jackson, Richland, Winnsboro, Brandon, Pearl, Ferriday, Vicksburg, Bude, Vidalia, St. Joseph, Hazlehurst, Harrisonburg, Waterproof, Fayette, Roxie, West Ferriday, Natchez, Meadville, Port Gibson, Jonesville, Crystal Springs, Tallulah, Newellton, and Wesson 354 AM CDT Sat Apr 24 2021 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for portions of northeast Louisiana and Mississippi, including the following areas, in northeast Louisiana, Catahoula, Concordia, Franklin LA, Madison LA and Tensas. In Mississippi, Adams, Claiborne, Copiah, Franklin MS, Hinds, Jefferson, Rankin and Warren has been cancelled. The Flood Watch is cancelled. $$ MSZ050>052-055>058-062>066-072>074-241400- /O.CON.KJAN.FF.A.0007.000000T0000Z-210424T1400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Scott-Newton-Lauderdale-Simpson-Smith-Jasper-Clarke-Lincoln-Lawrence- Jefferson Davis-Covington-Jones-Marion-Lamar-Forrest- Including the cities of Conehatta, Union, Purvis, Lumberton, Forest, Collins, Meridian, Taylorsville, New Hebron, West Hattiesburg, Monticello, Mendenhall, Heidelberg, Hattiesburg, Columbia, Prentiss, Decatur, Magee, Stonewall, Bassfield, Brookhaven, Quitman, Newton, Bay Springs, Mount Olive, Shubuta, Laurel, Morton, and Raleigh 354 AM CDT Sat Apr 24 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 9 AM CDT THIS MORNING... The Flash Flood Watch continues for * Portions of central Mississippi...east central Mississippi...south central Mississippi and southeast Mississippi, including the following areas, in central Mississippi, Scott, Simpson and Smith. In east central Mississippi, Clarke, Jasper, Lauderdale and Newton. In south central Mississippi, Jefferson Davis, Lawrence, Lincoln and Marion. In southeast Mississippi, Covington, Forrest, Jones and Lamar. * Until 9 AM CDT this morning * A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation.You should monitor later forecasts and be prepared to take action should flash flood warnings be issued. * Rainfall amounts of 2 to 4 inches with amounts up to 6 inches will likely result in areas of flash flooding. Numerous roads may become flooded, closed or washed out. Minor to moderate river flooding is also possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... Do not enter or cross flowing water or water of unknown depth. Stay away or be swept away. River banks and culverts can become unstable and unsafe. && $$ 22
088 WGUS64 KJAN 241007 FFAJAN Flood Watch National Weather Service Jackson MS 507 AM CDT Sat Apr 24 2021 MSZ050>052-055>058-062>066-072>074-241115- /O.CAN.KJAN.FF.A.0007.000000T0000Z-210424T1400Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Scott-Newton-Lauderdale-Simpson-Smith-Jasper-Clarke-Lincoln-Lawrence- Jefferson Davis-Covington-Jones-Marion-Lamar-Forrest- Including the cities of Conehatta, Union, Purvis, Lumberton, Forest, Collins, Meridian, Taylorsville, New Hebron, West Hattiesburg, Monticello, Mendenhall, Heidelberg, Hattiesburg, Columbia, Prentiss, Decatur, Magee, Stonewall, Bassfield, Brookhaven, Quitman, Newton, Bay Springs, Mount Olive, Shubuta, Laurel, Morton, and Raleigh 507 AM CDT Sat Apr 24 2021 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for portions of central Mississippi...east central Mississippi...south central Mississippi and southeast Mississippi, including the following areas, in central Mississippi, Scott, Simpson and Smith. In east central Mississippi, Clarke, Jasper, Lauderdale and Newton. In south central Mississippi, Jefferson Davis, Lawrence, Lincoln and Marion. In southeast Mississippi, Covington, Forrest, Jones and Lamar has been cancelled. The Flood Watch is cancelled. Flooding is no longer expected to pose a threat. Please continue to heed remaining road closures. $$ DB
The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 23, 3:28 PM CDT | River Flood Warning | JAN | Franklin | 30 hr |
Nearby
Flash Flood Watches in Mississippi, 2021Flash Flood Watches in Louisiana, 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.