Alert archive / Mississippi / Flash Flood Watches in 2021
Flash Flood Watch 3, NWS Jackson, MS
NWS Jackson, MS issued this flash flood watch at Mar 16, 2021, 11:49 AM CDT for 10 counties in Mississippi. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Mar 16, 2021, 11:49 AM CDT (16:49 UTC)
- Expired
- Mar 16, 2021, 7:00 PM CDT
- In force
- 7 hr
- Issued by
- NWS Jackson, MS
- Flood severity
- None
Counties Clarke County, MS, Covington County, MS, Jasper County, MS, Jefferson Davis County, MS, Jones County, MS, Lauderdale County, MS, Lawrence County, MS, Newton County, MS, Simpson County, MS, Smith County, MS
The radar
The Jackson/Brandon,MS radar (KDGX), 71 km from the middle of the area, began a volume at 16:51 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, 4.8 hours before the alert went out and 81 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
- 812 J/kg
- Mixed-layer CIN
- -20 J/kg
- Mixed-layer LCL
- 660 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 99 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.6
The text
As transmitted.
281 WGUS64 KJAN 161649 FFAJAN URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Jackson MS 1149 AM CDT Tue Mar 16 2021 MSZ051-052-055>058-063>066-170000- /O.NEW.KJAN.FF.A.0003.210316T1649Z-210317T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Newton-Lauderdale-Simpson-Smith-Jasper-Clarke-Lawrence-Jefferson Davis-Covington-Jones- Including the cities of Conehatta, Taylorsville, Mount Olive, New Hebron, Laurel, Union, Prentiss, Newton, Monticello, Magee, Meridian, Stonewall, Bay Springs, Mendenhall, Bassfield, Shubuta, Heidelberg, Collins, Quitman, Decatur, and Raleigh 1149 AM CDT Tue Mar 16 2021 ...FLASH FLOOD WATCH IN EFFECT UNTIL 7 PM CDT THIS EVENING... The National Weather Service in Jackson has issued a * Flash Flood Watch for portions of central Mississippi...east central Mississippi...south central Mississippi and southeast Mississippi, including the following areas, in central Mississippi, Simpson and Smith. In east central Mississippi, Clarke, Jasper, Lauderdale and Newton. In south central Mississippi, Jefferson Davis and Lawrence. In southeast Mississippi, Covington and Jones. * Until 7 PM CDT this 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. * Areas of flash flooding are likely. Some roads may be flooded or closed. Some structures possibly threatened with inundation. $$ DL
1 follow-up statement
796 WGUS64 KJAN 162051 FFAJAN Flood Watch National Weather Service Jackson MS 351 PM CDT Tue Mar 16 2021 MSZ051-052-055>058-063>066-170000- /O.CON.KJAN.FF.A.0003.000000T0000Z-210317T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Newton-Lauderdale-Simpson-Smith-Jasper-Clarke-Lawrence- Jefferson Davis-Covington-Jones- Including the cities of Newton, Union, Decatur, Conehatta, Meridian, Magee, Mendenhall, Taylorsville, Raleigh, Bay Springs, Heidelberg, Quitman, Stonewall, Shubuta, Monticello, New Hebron, Prentiss, Bassfield, Collins, Mount Olive, and Laurel 351 PM CDT Tue Mar 16 2021 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... The Flash Flood Watch continues for * Portions of central Mississippi, east central Mississippi, south central Mississippi and southeast Mississippi, including the following areas in central Mississippi, Simpson and Smith. In east central Mississippi, Clarke, Jasper, Lauderdale and Newton. In south central Mississippi, Jefferson Davis and Lawrence. In southeast Mississippi, Covington and Jones. * Until 7 PM CDT this evening * A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should flash flood warnings be issued. * Areas of flash flooding are likely. Some roads may be flooded or closed. Some structures possibly threatened with inundation. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should flash flood warnings be issued. && $$
The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 15, 7:23 PM CDT | Severe Thunderstorm Warning | JAN | Leake, Scott | 38 min |
| Mar 15, 11:39 PM CDT | Special Weather Statement | JAN | Carroll, Leflore | 36 min |
| Mar 15, 11:53 PM CDT | Severe Thunderstorm Warning | JAN | Grenada, Montgomery, Webster | 36 min |
| Mar 16, 2:54 AM CDT | Flash Flood Warning | JAN | Clarke | 6 hr |
| Mar 16, 6:52 AM CDT | Special Weather Statement | JAN | Jasper | 38 min |
| Mar 16, 10:18 AM CDT | Flash Flood Warning | JAN | Clarke, Jasper | 3 hr |
| Mar 16, 11:08 AM CDT | Flash Flood Warning | JAN | Covington, Jones, Smith | 3 hr |
| Mar 16, 2:40 PM CDT | River Flood Warning | JAN | Jones | 5 days |
| Mar 16, 4:50 PM CDT | Severe Thunderstorm Warning | JAN | Issaquena | 40 min |
| Mar 16, 4:57 PM CDT | Special Weather Statement | JAN | Rankin | 33 min |
| Mar 16, 4:58 PM CDT | Special Weather Statement | JAN | Winston | 32 min |
| Mar 16, 5:17 PM CDT | Severe Thunderstorm Warning | JAN | Washington | 43 min |
| Mar 16, 5:29 PM CDT | Special Weather Statement | JAN | Rankin | 31 min |
| Mar 16, 6:34 PM CDT | Special Weather Statement | JAN | Copiah | 26 min |
| Mar 16, 6:45 PM CDT | Severe Thunderstorm Warning | JAN | Copiah | 60 min |
| Mar 16, 6:59 PM CDT | Special Weather Statement | JAN | Attala | 46 min |
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.