Alert archive / Mississippi / Flash Flood Warnings in 2021

Flash Flood Warning 39, NWS Jackson, MS

June 9, 20214 counties in Mississippi

NWS Jackson, MS issued this flash flood warning at Jun 9, 2021, 2:01 PM CDT for 4 counties in 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 9, 2021, 2:01 PM CDT (19:01 UTC)
Expired: Jun 9, 2021, 5:00 PM CDT
In force: 3 hr
Issued by: NWS Jackson, MS
Area: Storm-based polygon
Flood severity: None

Counties Bolivar County, MS, Leflore County, MS, Sunflower County, MS, Washington County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 131 km from the middle of the area, began a volume at 19:04 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, 7.0 hours before the alert went out and 125 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: 1277 J/kg
Mixed-layer CIN: -36 J/kg
Mixed-layer LCL: 732 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: 72 m²/s²
0-3 km storm-relative helicity: 83 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

793 
WGUS54 KJAN 091901
FFWJAN
MSC011-083-133-151-092200-
/O.NEW.KJAN.FF.W.0039.210609T1901Z-210609T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

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

The National Weather Service in Jackson has issued a

* Flash Flood Warning for...
  Leflore County in north central Mississippi...
  Southeastern Bolivar County in northwestern Mississippi...
  Sunflower County in northwestern Mississippi...
  Northeastern Washington County in northwestern Mississippi...

* Until 500 PM CDT.

* At 201 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 2 and 4 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...
  Greenwood, Indianola, Moorhead, Itta Bena, Shaw, Sunflower, 
  Inverness, Sidon, Blaine, Quito, Swiftown, Holly Ridge, Money, 
  Tribbett, Schlater, Morgan City and Doddsville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3369 9083 3369 9014 3365 9010 3346 9010
      3346 9014 3342 9014 3342 9017 3333 9017
      3336 9032 3335 9028 3331 9029 3328 9038
      3324 9037 3324 9042 3327 9045 3333 9046
      3333 9056 3327 9056 3328 9079 3353 9087

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

$$

GRG

1 follow-up statement

239 
WGUS74 KJAN 092207
FFSJAN

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

MSC011-083-133-151-092217-
/O.EXP.KJAN.FF.W.0039.000000T0000Z-210609T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Bolivar MS-Leflore MS-Sunflower MS-Washington MS-
507 PM CDT Wed Jun 9 2021

...FLASH FLOOD WARNING HAS EXPIRED FOR LEFLORE, SOUTHEASTERN 
BOLIVAR, SUNFLOWER AND NORTHEASTERN WASHINGTON COUNTIES...

Flood waters have receded. Flooding is no longer expected to pose an 
immediate threat. Please continue to heed remaining road closures.

A Flash Flood Watch remains in effect until 100 PM CDT Thursday for 
portions of southeast Arkansas...northeast Louisiana and Mississippi.

LAT...LON 3369 9083 3369 9014 3365 9010 3346 9010
      3346 9014 3342 9014 3342 9017 3333 9017
      3336 9032 3335 9028 3331 9029 3328 9038
      3324 9037 3324 9042 3327 9045 3333 9046
      3333 9056 3327 9056 3328 9079 3353 9087

$$

NF

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, 11:50 AM CDT	Flash Flood Warning	JAN	Bolivar, Sunflower	3 hr
Jun 9, 12:52 PM CDT	Flash Flood Warning	JAN	Grenada, Leflore	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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.