Alert archive / Mississippi / Flash Flood Watches in 2021
Flash Flood Watch 4, NWS Jackson, MS
NWS Jackson, MS issued this flash flood watch at Mar 22, 2021, 2:27 PM CDT for 7 counties in Mississippi. It took effect at Mar 23, 2021, 1:00 PM CDT. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- Mar 22, 2021, 2:27 PM CDT (19:27 UTC)
- In effect from
- Mar 23, 2021, 1:00 PM CDT
- Expired
- Mar 23, 2021, 3:05 PM CDT
- In force
- 2 hr
- Issued by
- NWS Jackson, MS
- Flood severity
- None
Counties Covington County, MS, Forrest County, MS, Jefferson Davis County, MS, Jones County, MS, Lamar County, MS, Lawrence County, MS, Marion County, MS
The radar
The Jackson/Brandon,MS radar (KDGX), 101 km from the middle of the area, began a volume at 19:25 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, 7.5 hours before the alert went out and 109 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
- 1203 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 36 m²/s²
- 0-3 km storm-relative helicity
- 115 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
829 WGUS64 KJAN 221927 FFAJAN URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Jackson MS 227 PM CDT Mon Mar 22 2021 .Multiple rounds of thunderstorms with locally heavy rain will move across the area from Tuesday afternoon through Thursday resulting in the potential for flash flooding. MSZ064>066-072>074-230630- /O.NEW.KJAN.FF.A.0004.210323T1800Z-210326T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Jefferson Davis-Covington-Jones-Marion-Lamar-Forrest- Including the cities of Prentiss, Bassfield, Collins, Mount Olive, Laurel, Columbia, West Hattiesburg, Lumberton, Purvis, and Hattiesburg 227 PM CDT Mon Mar 22 2021 ...FLASH FLOOD WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH THURSDAY EVENING... The National Weather Service in Jackson has issued a * Flash Flood Watch for portions of south central Mississippi and southeast Mississippi, including the following areas in south central Mississippi, Jefferson Davis and Marion. In southeast Mississippi, Covington, Forrest, Jones and Lamar. * From Tuesday afternoon through Thursday evening * Multiple rounds of heavy rainfall from Tuesday afternoon through Thursday leading to three to five inches with locally heavier amounts is expected across portions southeast Mississippi. This result in flash flooding. * Flooding of low lying and urban areas are possible. Some roads may become flooded and closed. Some structures may become threatened with inundation and moderate river flooding, especially in Laurel may occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && $$ 22
3 follow-up statements
583 WGUS64 KJAN 230813 FFAJAN Flood Watch National Weather Service Jackson MS 313 AM CDT Tue Mar 23 2021 MSZ063-231615- /O.EXA.KJAN.FF.A.0004.210323T1800Z-210326T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Lawrence- Including the cities of Monticello and New Hebron 313 AM CDT Tue Mar 23 2021 ...FLASH FLOOD WATCH IN EFFECT FROM 1 PM CDT THIS AFTERNOON THROUGH THURSDAY EVENING... The National Weather Service in Jackson has expanded the * Flash Flood Watch to include a portion of south central Mississippi, including the following area, Lawrence. * From 1 PM CDT this afternoon through Thursday evening * A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation.You should monitor later forecasts and be prepared to take action should flash flood warnings be issued. $$ MSZ064>066-072>074-231615- /O.CON.KJAN.FF.A.0004.210323T1800Z-210326T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Jefferson Davis-Covington-Jones-Marion-Lamar-Forrest- Including the cities of Columbia, West Hattiesburg, Purvis, Lumberton, Mount Olive, Bassfield, Laurel, Collins, Prentiss, and Hattiesburg 313 AM CDT Tue Mar 23 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT FROM 1 PM CDT THIS AFTERNOON THROUGH THURSDAY EVENING... The Flash Flood Watch continues for * Portions of south central Mississippi and southeast Mississippi, including the following areas, in south central Mississippi, Jefferson Davis and Marion. In southeast Mississippi, Covington, Forrest, Jones and Lamar. * From 1 PM CDT this afternoon through Thursday evening * 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. $$ JC
836 WGUS64 KJAN 231645 AAA FFAJAN Flood Watch...UPDATED National Weather Service Jackson MS 1145 AM CDT Tue Mar 23 2021 MSZ063>066-072>074-240345- /O.CON.KJAN.FF.A.0004.210323T1800Z-210326T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Lawrence-Jefferson Davis-Covington-Jones-Marion-Lamar-Forrest- Including the cities of Monticello, New Hebron, Prentiss, Bassfield, Collins, Mount Olive, Laurel, Columbia, West Hattiesburg, Lumberton, Purvis, and Hattiesburg 1145 AM CDT Tue Mar 23 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THURSDAY EVENING... The Flash Flood Watch continues for * Portions of south central Mississippi and southeast Mississippi, including the following areas in south central Mississippi, Jefferson Davis, Lawrence and Marion. In southeast Mississippi, Covington, Forrest, Jones and Lamar. * Through Thursday evening * A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation.You should monitor later forecasts and be prepared to take action should flash flood warnings be issued. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should flash flood warnings be issued. && $$ 22
469 WGUS64 KJAN 232005 AAA FFAJAN URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch...UPDATED National Weather Service Jackson MS 305 PM CDT Tue Mar 23 2021 MSZ063>066-072>074-240415- /O.CAN.KJAN.FF.A.0004.000000T0000Z-210326T0000Z/ /O.NEW.KJAN.FF.A.0005.210324T2300Z-210326T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Lawrence-Jefferson Davis-Covington-Jones-Marion-Lamar-Forrest- Including the cities of Monticello, New Hebron, Prentiss, Bassfield, Collins, Mount Olive, Laurel, Columbia, West Hattiesburg, Lumberton, Purvis, and Hattiesburg 305 PM CDT Tue Mar 23 2021 ...FLASH FLOOD WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY EVENING... The National Weather Service in Jackson has issued a * Flash Flood Watch for portions of south central Mississippi and southeast Mississippi, including the following areas in south central Mississippi, Jefferson Davis, Lawrence and Marion. In southeast Mississippi, Covington, Forrest, Jones and Lamar. * From Wednesday evening through Thursday evening * Additional heavy rainfall of 1 to 3 inches in a short amount of time over already saturated ground from Wednesday evening through Thursday evening may result in flash flooding. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && $$ 22
The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 22, 2:25 PM CDT | Wind Advisory | JAN | Adams, Bolivar, Carroll, Claiborne, Copiah, Franklin and 17 more | 23 hr |
Nearby
Flash 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.