Alert archive / Mississippi / Flash Flood Watches in 2021

Flash Flood Watch 13, NWS Jackson, MS

June 17, 202111 counties in Mississippi

NWS Jackson, MS issued this flash flood watch at Jun 17, 2021, 2:13 PM CDT for 11 counties in Mississippi. It took effect at Jun 18, 2021, 7:00 PM CDT. It was in force for 14 hr.

The area

The counties it named.

The facts

Issued
Jun 17, 2021, 2:13 PM CDT (19:13 UTC)
In effect from
Jun 18, 2021, 7:00 PM CDT
Expired
Jun 19, 2021, 8:48 AM CDT
In force
14 hr
Issued by
NWS Jackson, MS
Flood severity
None

Counties Clarke County, MS, Covington County, MS, Forrest County, MS, Jasper County, MS, Jones County, MS, Kemper County, MS, Lamar County, MS, Lauderdale County, MS, Marion County, MS, Newton County, MS, Smith County, MS

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 7.2 hours before the alert went out and 98 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, Jackson, MS at 12:00Z on 2021-06-17Temperature 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, Jackson, MS at 12:00Z on 2021-06-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -36 square meters per square second.1939Sfc1 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
1687 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
-36 m²/s²
0-3 km storm-relative helicity
-34 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

064 
WGUS64 KJAN 171913
FFAJAN

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Jackson MS
213 PM CDT Thu Jun 17 2021

MSZ066-072>074-180315-
/O.NEW.KJAN.FF.A.0013.210619T0000Z-210620T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Jones-Marion-Lamar-Forrest-
Including the cities of Columbia, West Hattiesburg, Purvis, 
Lumberton, Laurel, and Hattiesburg
213 PM CDT Thu Jun 17 2021

...FLASH FLOOD WATCH IN EFFECT FROM FRIDAY EVENING THROUGH SATURDAY 
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, Marion. In southeast Mississippi, Forrest, 
  Jones and Lamar.

* From Friday evening through Saturday evening

* 3 To 6 inches of rain are expected with locally higher amounts 
  possible.

* Areas of flash flooding could cause road closures and threaten 
  homes and businesses 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.

&&

$$

DL
6 follow-up statements
380 
WGUS64 KJAN 180907
FFAJAN

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Jackson MS
407 AM CDT Fri Jun 18 2021

MSZ046-051-052-057-058-181715-
/O.EXB.KJAN.FF.A.0013.210619T0000Z-210620T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Kemper-Newton-Lauderdale-Jasper-Clarke-
Including the cities of Conehatta, De Kalb, Union, Newton, 
Stonewall, Meridian, Bay Springs, Scooba, Shubuta, Heidelberg, 
Quitman, and Decatur
407 AM CDT Fri Jun 18 2021

...FLASH FLOOD WATCH IN EFFECT FROM THIS EVENING THROUGH LATE 
SATURDAY NIGHT...

The National Weather Service in Jackson has expanded the

* Flash Flood Watch to include a portion of east central 
  Mississippi, including the following areas, Clarke, Jasper, 
  Kemper, Lauderdale and Newton.

* From this evening through late Saturday night

* 3 To 5 inches of rain are expected with locally higher amounts 
  possible.

* Areas of flash flooding could cause road closures and threaten 
  homes and businesses 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.

&&

$$

MSZ066-072>074-181715-
/O.EXT.KJAN.FF.A.0013.210619T0000Z-210620T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Jones-Marion-Lamar-Forrest-
Including the cities of Columbia, West Hattiesburg, Purvis, 
Lumberton, Laurel, and Hattiesburg
407 AM CDT Fri Jun 18 2021

...FLASH FLOOD WATCH NOW IN EFFECT FROM THIS EVENING THROUGH LATE 
SATURDAY NIGHT...

The Flash Flood Watch is now in effect for

* Portions of south central Mississippi and southeast Mississippi, 
  including the following areas, in south central Mississippi, 
  Marion. In southeast Mississippi, Forrest, Jones and Lamar.

* From this evening through late Saturday night

* 3 To 5 inches of rain are expected with locally higher amounts 
  possible.

* Areas of flash flooding could cause road closures and threaten 
  homes and businesses 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.

&&

$$

DC
506 
WGUS64 KJAN 181446
FFAJAN

Flood Watch
National Weather Service Jackson MS
946 AM CDT Fri Jun 18 2021

MSZ046-051-052-057-058-066-072>074-182300-
/O.CON.KJAN.FF.A.0013.210619T0000Z-210620T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Kemper-Newton-Lauderdale-Jasper-Clarke-Jones-Marion-Lamar-Forrest-
Including the cities of Conehatta, Purvis, Columbia, De Kalb, Union, 
West Hattiesburg, Newton, Lumberton, Stonewall, Meridian, Bay 
Springs, Scooba, Shubuta, Heidelberg, Laurel, Quitman, Decatur, and 
Hattiesburg
946 AM CDT Fri Jun 18 2021

...FLASH FLOOD WATCH REMAINS IN EFFECT FROM 7 PM CDT THIS EVENING 
THROUGH LATE SATURDAY NIGHT...

The Flash Flood Watch continues for

* Portions of east central Mississippi...south central Mississippi 
  and southeast Mississippi, including the following areas, in east 
  central Mississippi, Clarke, Jasper, Kemper, Lauderdale and 
  Newton. In south central Mississippi, Marion. In southeast 
  Mississippi, Forrest, Jones and Lamar.

* From 7 PM CDT this evening through late Saturday night

* 3 To 5 inches of rain are expected with locally higher amounts 
  possible.

* Areas of flash flooding could cause road closures and threaten 
  homes and businesses 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.

&&

$$

DL
017 
WGUS64 KJAN 182040
FFAJAN

Flood Watch
National Weather Service Jackson MS
340 PM CDT Fri Jun 18 2021

MSZ046-051-052-057-058-066-072>074-190445-
/O.CON.KJAN.FF.A.0013.210619T0000Z-210620T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Kemper-Newton-Lauderdale-Jasper-Clarke-Jones-Marion-Lamar-Forrest-
Including the cities of Conehatta, Purvis, Columbia, De Kalb, Union, 
West Hattiesburg, Newton, Lumberton, Stonewall, Meridian, Bay 
Springs, Scooba, Shubuta, Heidelberg, Laurel, Quitman, Decatur, and 
Hattiesburg
340 PM CDT Fri Jun 18 2021

...FLASH FLOOD WATCH REMAINS IN EFFECT FROM 7 PM CDT THIS EVENING 
THROUGH LATE SATURDAY NIGHT...

The Flash Flood Watch continues for

* Portions of east central Mississippi...south central Mississippi 
  and southeast Mississippi, including the following areas, in east 
  central Mississippi, Clarke, Jasper, Kemper, Lauderdale and 
  Newton. In south central Mississippi, Marion. In southeast 
  Mississippi, Forrest, Jones and Lamar.

* From 7 PM CDT this evening through late Saturday night

* 3 To 5 inches of rain are expected with locally higher amounts 
  possible.

* Areas of flash flooding could cause road closures and threaten 
  homes and businesses 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.

&&

$$

DL
554 
WGUS64 KJAN 190440
FFAJAN

Flood Watch
National Weather Service Jackson MS
1140 PM CDT Fri Jun 18 2021

MSZ046-051-052-057-058-066-072>074-191245-
/O.CON.KJAN.FF.A.0013.000000T0000Z-210620T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Kemper-Newton-Lauderdale-Jasper-Clarke-Jones-Marion-Lamar-Forrest-
Including the cities of Conehatta, Purvis, Columbia, De Kalb, Union, 
West Hattiesburg, Newton, Lumberton, Stonewall, Meridian, Bay 
Springs, Scooba, Shubuta, Heidelberg, Laurel, Quitman, Decatur, and 
Hattiesburg
1140 PM CDT Fri Jun 18 2021

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH LATE SATURDAY NIGHT...

The Flash Flood Watch continues for

* Portions of east central Mississippi...south central Mississippi 
  and southeast Mississippi, including the following areas, in east 
  central Mississippi, Clarke, Jasper, Kemper, Lauderdale and 
  Newton. In south central Mississippi, Marion. In southeast 
  Mississippi, Forrest, Jones and Lamar.

* Through late Saturday night

* 3 To 4 inches of rain are expected, with locally higher amounts 
  possible.

* Areas of flash flooding could cause road closures and threaten 
  homes and businesses 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.

&&

$$

DC
626 
WGUS64 KJAN 190823
FFAJAN

Flood Watch
National Weather Service Jackson MS
323 AM CDT Sat Jun 19 2021

MSZ056-065-191630-
/O.EXA.KJAN.FF.A.0013.000000T0000Z-210620T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Smith-Covington-
Including the cities of Collins, Taylorsville, Raleigh, and Mount 
Olive
323 AM CDT Sat Jun 19 2021

...FLASH FLOOD WATCH IN EFFECT THROUGH LATE TONIGHT...

The National Weather Service in Jackson has expanded the

* Flash Flood Watch to include portions of central Mississippi and 
  southeast Mississippi, including the following areas, in central 
  Mississippi, Smith. In southeast Mississippi, Covington.

* Through late tonight

* 3 Inches of rain are expected, with locally higher amounts 
  possible.

* Areas of flash flooding could cause road closures and threaten 
  homes and businesses 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.

&&

$$

MSZ046-051-052-057-058-066-072>074-191630-
/O.CON.KJAN.FF.A.0013.000000T0000Z-210620T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Kemper-Newton-Lauderdale-Jasper-Clarke-Jones-Marion-Lamar-Forrest-
Including the cities of Conehatta, Purvis, Columbia, De Kalb, Union, 
West Hattiesburg, Newton, Lumberton, Stonewall, Meridian, Bay 
Springs, Scooba, Shubuta, Heidelberg, Laurel, Quitman, Decatur, and 
Hattiesburg
323 AM CDT Sat Jun 19 2021

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH LATE TONIGHT...

The Flash Flood Watch continues for

* Portions of east central Mississippi...south central Mississippi 
  and southeast Mississippi, including the following areas, in east 
  central Mississippi, Clarke, Jasper, Kemper, Lauderdale and 
  Newton. In south central Mississippi, Marion. In southeast 
  Mississippi, Forrest, Jones and Lamar.

* Through late tonight

* 3 To 4 inches of rain are expected, with locally higher amounts 
  possible.

* Areas of flash flooding could cause road closures and threaten 
  homes and businesses 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.

&&

$$

DC
285 
WGUS64 KJAN 191348
FFAJAN

Flood Watch
National Weather Service Jackson MS
848 AM CDT Sat Jun 19 2021

MSZ046-051-052-056>058-065-066-072>074-191500-
/O.CAN.KJAN.FF.A.0013.000000T0000Z-210620T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Kemper-Newton-Lauderdale-Smith-Jasper-Clarke-Covington-Jones-Marion-
Lamar-Forrest-
Including the cities of Conehatta, De Kalb, Union, Purvis, 
Lumberton, Collins, Meridian, Taylorsville, Heidelberg, Scooba, 
Quitman, Decatur, Stonewall, Raleigh, Columbia, West Hattiesburg, 
Newton, Bay Springs, Mount Olive, Shubuta, Laurel, and Hattiesburg
848 AM CDT Sat Jun 19 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, 
Smith. In east central Mississippi, Clarke, Jasper, Kemper, 
Lauderdale and Newton. In south central Mississippi, Marion. In 
southeast Mississippi, Covington, Forrest, Jones and Lamar has been 
cancelled.

Flooding is no longer expected to pose a threat. Please continue to 
heed remaining road closures.

$$

22

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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.