Alert archive / Mississippi / Flash Flood Warnings in 2021

Flash Flood Warning 37, NWS Jackson, MS

June 9, 2021Bolivar County, Sunflower County, Mississippi

NWS Jackson, MS issued this flash flood warning at Jun 9, 2021, 11:50 AM CDT for Bolivar County, Sunflower County, Mississippi. It was in force for 3 hr. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 9, 2021, 11:50 AM CDT (16:50 UTC)
Expired: Jun 9, 2021, 2:45 PM CDT
In force: 3 hr
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Flood severity: None

Counties Bolivar County, MS, Sunflower County, MS

The radar

The Little Rock radar (KLZK), 161 km from the middle of the area, began a volume at 16:50 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.

What was reported inside it

Time	Report	Where	Remark
Jun 9, 1:27 PM CDT	FLASH FLOOD	1 Ese Mound Bayou, MS	SHERRIFF OFFICE REPORTED THERE WERE ROADS FLOODED AND HOUSES WITH WATER IN THEM IN MOUND BAYOU.
Jun 9, 1:50 PM CDT	FLASH FLOOD	Ruleville, MS	SHERRIFF OFFICE REPORTED THAT THERE WAS FLOODING OVER THE ROAD ON NORTH CHESTER STREET IN THE CITY OF RULEVILLE.
Jun 9, 1:56 PM CDT	FLASH FLOOD	Ruleville, MS	SHERRIFF OFFICE REPORTED THAT THERE WAS FLOODING ACROSS SYLVIA STREET AND WATER IN HOMES.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 4.8 hours before the alert went out and 138 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1290 J/kg
Mixed-layer CIN: -26 J/kg
Mixed-layer LCL: 533 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 94 m²/s²
0-3 km storm-relative helicity: 59 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

353 
WGUS54 KJAN 091650
FFWJAN
MSC011-133-091945-
/O.NEW.KJAN.FF.W.0037.210609T1650Z-210609T1945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson MS
1150 AM CDT Wed Jun 9 2021

The National Weather Service in Jackson has issued a

* Flash Flood Warning for...
  Bolivar County in northwestern Mississippi...
  Northeastern Sunflower County in northwestern Mississippi...

* Until 245 PM CDT.

* At 1150 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 2 inches of rain 
  have fallen. Flash flooding is ongoing or expected to begin 
  shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Doppler radar.

  IMPACT...Flooding of small creeks and streams, urban areas,
           highways, streets and underpasses as well as other
           drainage and low lying areas.

* Some locations that will experience flash flooding include...
  Cleveland, Ruleville, Shelby, Drew, Rosedale, Parchman, Mound 
  Bayou, Renova, Boyle, Gunnison, Deeson, Rome, Merigold, Duncan, 
  Beulah, Pace, Alligator and Winstonville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

LAT...LON 3377 9099 3386 9107 3393 9101 3397 9109
      3396 9097 3402 9099 3403 9089 3409 9087
      3410 9088 3411 9096 3411 9066 3399 9066
      3399 9045 3370 9045 3369 9103 3372 9106
      3371 9112 3372 9115 3377 9114 3378 9113

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-2 INCHES IN 1 HOUR 

$$

GRG

1 follow-up statement

095 
WGUS74 KJAN 091743
FFSJAN

Flash Flood Statement
National Weather Service Jackson MS
1243 PM CDT Wed Jun 9 2021

MSC011-133-091945-
/O.CON.KJAN.FF.W.0037.000000T0000Z-210609T1945Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Bolivar MS-Sunflower MS-
1243 PM CDT Wed Jun 9 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 245 PM CDT THIS 
AFTERNOON FOR BOLIVAR AND NORTHEASTERN SUNFLOWER COUNTIES...

At 1241 PM CDT, Doppler radar indicated thunderstorms producing 
heavy rain across the warned area. Between 2 and 3 inches of rain 
have fallen. Flash flooding is ongoing or expected to begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Doppler radar.

IMPACT...Flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other
         drainage and low lying areas.

Some locations that will experience flash flooding include...
  Cleveland, Ruleville, Shelby, Drew, Rosedale, Parchman, Mound 
  Bayou, Renova, Boyle, Gunnison, Deeson, Rome, Merigold, Duncan, 
  Beulah, Pace, Alligator and Winstonville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

LAT...LON 3377 9099 3386 9107 3393 9101 3397 9109
      3396 9097 3402 9099 3403 9089 3409 9087
      3410 9088 3411 9096 3411 9066 3399 9066
      3399 9045 3370 9045 3369 9103 3372 9106
      3371 9112 3372 9115 3377 9114 3378 9113

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-2 INCHES IN 1 HOUR 

$$

GRG

The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 8, 7:03 PM CDT	Flash Flood Warning	JAN	Grenada	117 min
Jun 8, 9:58 PM CDT	Severe Thunderstorm Warning	JAN	Choctaw, Oktibbeha	62 min
Jun 8, 11:12 PM CDT	Flash Flood Warning	JAN	Bolivar, Sunflower	3 hr
Jun 9, 1:27 AM CDT	Flash Flood Warning	JAN	Grenada	3 hr
Jun 9, 4:03 AM CDT	Flash Flood Watch	JAN	Attala, Bolivar, Carroll, Choctaw, Clay, Grenada and 14 more	39 hr
Jun 9, 10:07 AM CDT	River Flood Warning	JAN	Yazoo	18 days
Jun 9, 10:26 AM CDT	River Flood Warning	JAN	Clay	4 days
Jun 9, 12:52 PM CDT	Flash Flood Warning	JAN	Grenada, Leflore	3 hr
Jun 9, 2:01 PM CDT	Flash Flood Warning	JAN	Bolivar, Leflore, Sunflower, Washington	3 hr
Jun 9, 2:30 PM CDT	Severe Thunderstorm Warning	JAN	Issaquena, Sharkey	45 min
Jun 9, 2:36 PM CDT	Special Weather Statement	JAN	Kemper	24 min
Jun 9, 2:41 PM CDT	Special Weather Statement	JAN	Attala, Holmes	49 min
Jun 9, 2:56 PM CDT	Severe Thunderstorm Warning	JAN	Kemper, Noxubee	49 min
Jun 9, 3:01 PM CDT	Special Weather Statement	JAN	Yazoo	29 min
Jun 9, 3:05 PM CDT	Severe Thunderstorm Warning	JAN	Attala, Holmes, Leake, Madison, Neshoba, Winston	40 min
Jun 9, 3:26 PM CDT	Severe Thunderstorm Warning	JAN	Yazoo	33 min
Jun 9, 3:44 PM CDT	Special Weather Statement	JAN	Leake	31 min
Jun 9, 3:58 PM CDT	Special Weather Statement	JAN	Holmes	32 min
Jun 9, 4:18 PM CDT	Special Weather Statement	JAN	Leake	27 min
Jun 9, 4:48 PM CDT	Special Weather Statement	JAN	Holmes, Humphreys	27 min
Jun 9, 5:11 PM CDT	Severe Thunderstorm Warning	JAN	Newton, Scott	20 min
Jun 9, 5:26 PM CDT	Severe Thunderstorm Warning	JAN	Issaquena, Sharkey, Yazoo	49 min
Jun 9, 6:10 PM CDT	Special Weather Statement	JAN	Jasper	50 min
Jun 9, 6:26 PM CDT	Special Weather Statement	JAN	Warren	34 min
Jun 9, 6:34 PM CDT	Severe Thunderstorm Warning	JAN	Hinds, Warren	41 min
Jun 9, 6:59 PM CDT	Special Weather Statement	JAN	Clarke	46 min

Nearby

Flash Flood Warnings in Mississippi, 2021 Every flash flood warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.