Alert archive / Mississippi / Flash Flood Warnings in 2021

Flash Flood Warning 32, NWS Jackson, MS

June 8, 2021Bolivar County, Sunflower County, Mississippi

NWS Jackson, MS issued this flash flood warning at Jun 8, 2021, 2:38 PM CDT for Bolivar County, Sunflower County, Mississippi. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 8, 2021, 2:38 PM CDT (19:38 UTC)
Expired: Jun 8, 2021, 5:30 PM CDT
In force: 3 hr
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Damage threat: Considerable
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 19:42 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

Little Rock, AR (KLZK), launched 12:00Z, 7.6 hours before the alert went out and 134 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: 215 J/kg
Mixed-layer CIN: -54 J/kg
Mixed-layer LCL: 603 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 101 m²/s²
0-3 km storm-relative helicity: 102 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

275 
WGUS54 KJAN 081938
FFWJAN
MSC011-133-082230-
/O.NEW.KJAN.FF.W.0032.210608T1938Z-210608T2230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson MS
238 PM CDT Tue Jun 8 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 530 PM CDT.

* At 238 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 7 and 10 inches of rain 
  have already fallen. Flash flooding is occurring.

  HAZARD...Life threatening flash flooding. Thunderstorms
           producing flash flooding.

  SOURCE...Doppler radar.

  IMPACT...Life threatening flash flooding of creeks and streams,
           urban areas, highways, streets and underpasses.

* 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 3378 9113 3378 9099 3386 9107 3393 9101
      3397 9109 3400 9102 3396 9097 3402 9099
      3403 9089 3409 9087 3409 9088 3411 9096
      3411 9066 3399 9066 3399 9045 3377 9045
      3370 9064 3372 9106 3367 9122

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL...1-3 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 7, 7:22 PM CDT	Special Weather Statement	JAN	Humphreys, Leflore, Sunflower	38 min
Jun 8, 4:21 AM CDT	Flash Flood Watch	JAN	Bolivar, Carroll, Grenada, Holmes, Humphreys, Leflore and 3 more	17 hr
Jun 8, 7:28 AM CDT	Flash Flood Warning	JAN	Bolivar, Sunflower	5 hr
Jun 8, 8:12 AM CDT	River Flood Warning	JAN	Neshoba	7 days
Jun 8, 9:27 AM CDT	River Flood Warning	JAN	Madison, Yazoo	14 days
Jun 8, 9:27 AM CDT	River Flood Warning	JAN	Attala, Holmes	10 days
Jun 8, 9:41 AM CDT	Flash Flood Warning Considerable damage threat	JAN	Bolivar, Sunflower	2 hr
Jun 8, 11:53 AM CDT	Flash Flood Warning EmergencyCatastrophic damage threat	JAN	Bolivar, Sunflower	3 hr
Jun 8, 3:06 PM CDT	Special Weather Statement	JAN	Bolivar	39 min
Jun 8, 3:12 PM CDT	Severe Thunderstorm Warning	JAN	Bolivar	63 min
Jun 8, 3:27 PM CDT	Special Weather Statement	JAN	Madison	33 min
Jun 8, 3:31 PM CDT	River Flood Warning	JAN	Carroll, Leflore	15 days
Jun 8, 3:31 PM CDT	River Flood Warning	JAN	Sunflower	18 days
Jun 8, 3:56 PM CDT	Special Weather Statement	JAN	Sunflower	49 min
Jun 8, 3:58 PM CDT	Special Weather Statement	JAN	Lowndes	32 min
Jun 8, 4:08 PM CDT	Severe Thunderstorm Warning	JAN	Hinds, Issaquena, Sharkey, Warren, Yazoo	52 min
Jun 8, 4:11 PM CDT	Special Weather Statement	JAN	Kemper, Noxubee	49 min
Jun 8, 4:39 PM CDT	Flash Flood Warning	JAN	Bolivar, Washington	2 hr
Jun 8, 4:54 PM CDT	Special Weather Statement	JAN	Yazoo	36 min
Jun 8, 5:05 PM CDT	Severe Thunderstorm Warning	JAN	Hinds, Madison, Warren, Yazoo	40 min
Jun 8, 5:14 PM CDT	Special Weather Statement	JAN	Lowndes	31 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.