Alert archive / Mississippi / Flash Flood Warnings in 2021

Flash Flood Warning 60, NWS Memphis, TN

June 9, 2021Lafayette County, Mississippi

NWS Memphis, TN issued this flash flood warning at Jun 9, 2021, 3:15 PM CDT for Lafayette County, Mississippi. It was in force for 6 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, 3:15 PM CDT (20:15 UTC)
Expired: Jun 9, 2021, 9:00 PM CDT
In force: 6 hr
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Flood severity: Unknown

County Lafayette County, MS

The radar

The Memphis radar (KNQA), 108 km from the middle of the area, began a volume at 20:17 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, 8.3 hours before the alert went out and 59 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.

071 
WGUS54 KMEG 092015
FFWMEG
MSC071-092315-
/O.NEW.KMEG.FF.W.0060.210609T2015Z-210609T2315Z/
/00000.U.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Memphis TN
315 PM CDT Wed Jun 9 2021

The National Weather Service in Memphis has issued a

* Flash Flood Warning for...
  A Dam Break on the Tara Dam below Lake Tara Dam in...
  Central Lafayette County in northwestern Mississippi...

* Until 615 PM CDT.

* At 315 PM CDT, dam operators reported the failure of Lake Tara Dam 
  causing flash flooding downstream on the Tara Dam.

  HAZARD...Flash flooding from the failure of Lake Tara Dam.

  SOURCE...Dam operator.

  IMPACT...Flooding of areas downstream from the Lake Tara Dam
           along the Tara Dam.

This includes the following streams and drainages...
  Graham Mill Creek, Dunlap Branch, Berry Branch, Little 
  Tallahatchie River, Cataract Branch and Pumpkin Creek.
Flooding is occurring along the Tara Dam.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3445 8959 3445 8949 3437 8949 3435 8956
      3436 8960 3445 8960

FLASH FLOOD...OBSERVED
DAM FAILURE...OCCURRING

$$

SGW

2 follow-up statements

287 
WGUS54 KMEG 092312
FFWMEG
MSC071-100200-
/O.EXT.KMEG.FF.W.0060.000000T0000Z-210610T0200Z/
/00000.U.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Memphis TN
612 PM CDT Wed Jun 9 2021

The National Weather Service in Memphis has extended the

* Flash Flood Warning for...
  A Dam Break below Lake Tara Dam in...
  Central Lafayette County in northwestern Mississippi...

* Until 900 PM CDT.

* At 612 PM CDT, county dispatch reported the imminent failure of 
  Lake Tara Dam.

  HAZARD...Flash flooding from the imminent failure of Lake Tara
           Dam.

  SOURCE...County dispatch.

  IMPACT...Flooding of areas downstream from the Lake Tara Dam.

* The nearest downstream area is Tara Estates. 

This includes the following streams and drainages...
  Cataract Branch, Berry Branch and Dunlap Branch.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you are in low lying areas below the Lake Tara Dam you should 
move to higher ground immediately.

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

&&

LAT...LON 3443 8957 3443 8953 3440 8953 3439 8955
      3440 8957 3442 8958

FLASH FLOOD...OBSERVED
DAM FAILURE...IMMINENT

$$

108 
WGUS74 KMEG 100201
FFSMEG

Flash Flood Statement
National Weather Service Memphis TN
901 PM CDT Wed Jun 9 2021

MSC071-100211-
/O.EXP.KMEG.FF.W.0060.000000T0000Z-210610T0200Z/
/00000.U.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lafayette MS-
901 PM CDT Wed Jun 9 2021

...FLASH FLOOD WARNING FOR THE IMMINENT FAILURE OF LAKE TARA DAM HAS 
EXPIRED FOR CENTRAL LAFAYETTE COUNTY...

Water levels have been lowered from Lake Tara and the Flash Flood 
Warning will be allowed to expire.

A Flash Flood Watch remains in effect until 700 PM CDT Thursday for 
a portion of North Mississippi.

LAT...LON 3443 8957 3443 8953 3440 8953 3439 8955
      3440 8957 3442 8958

$$

The office that day

Everything else NWS Memphis, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 8, 7:08 PM CDT	Special Weather Statement	MEG	Chickasaw, Lee, Monroe	37 min
Jun 8, 7:12 PM CDT	Areal Flood Advisory	MEG	Calhoun, Chickasaw, Pontotoc	3 hr
Jun 8, 7:47 PM CDT	Special Weather Statement	MEG	Itawamba, Monroe	28 min
Jun 8, 8:15 PM CDT	Special Weather Statement	MEG	Itawamba	30 min
Jun 8, 9:20 PM CDT	Areal Flood Advisory	MEG	DeSoto, Tunica	3 hr
Jun 8, 10:58 PM CDT	Flash Flood Warning	MEG	Coahoma, Panola, Quitman, Tallahatchie, Tunica	11 hr
Jun 8, 11:00 PM CDT	Flash Flood Warning	MEG	Calhoun, Lafayette, Pontotoc, Union, Yalobusha	11 hr
Jun 8, 11:05 PM CDT	Flash Flood Warning	MEG	Benton, Marshall, Tate, Tippah	3 hr
Jun 9, 1:28 AM CDT	Areal Flood Warning	MEG	Calhoun, Chickasaw, Itawamba, Lee, Monroe, Pontotoc and 3 more	38 min
Jun 9, 1:53 AM CDT	Areal Flood Advisory	MEG	DeSoto, Marshall, Tate, Tunica	4 hr
Jun 9, 2:04 AM CDT	Areal Flood Advisory	MEG	Benton, Lafayette, Marshall, Tate, Tippah, Union	4 hr
Jun 9, 2:06 AM CDT	Flash Flood Warning	MEG	Calhoun, Chickasaw, Itawamba, Lee, Monroe, Pontotoc and 2 more	7 hr
Jun 9, 5:00 AM CDT	River Flood Warning	MEG	Lee	21 days
Jun 9, 5:06 AM CDT	River Flood Warning	MEG	Calhoun	15 hr
Jun 9, 5:11 AM CDT	Areal Flood Warning	MEG	Benton, Coahoma, DeSoto, Lafayette, Marshall, Panola and 2 more	99 min
Jun 9, 5:22 AM CDT	River Flood Warning	MEG	Tate, Tunica	44 hr
Jun 9, 5:37 AM CDT	River Flood Warning	MEG	Calhoun	13 hr
Jun 9, 6:50 AM CDT	Flash Flood Warning	MEG	DeSoto, Lafayette, Marshall, Panola, Tate, Tunica	3 hr
Jun 9, 6:56 AM CDT	Areal Flood Advisory	MEG	Alcorn, Benton, Marshall, Prentiss, Tippah, Union	3 hr
Jun 9, 7:44 AM CDT	Areal Flood Advisory	MEG	Alcorn, Lee, Prentiss, Tishomingo	2 hr
Jun 9, 8:58 AM CDT	Flash Flood Warning	MEG	Lafayette, Lee, Pontotoc, Union	5 hr
Jun 9, 9:21 AM CDT	Flash Flood Warning	MEG	Coahoma, DeSoto, Panola, Quitman, Tate, Tunica	3 hr
Jun 9, 11:04 AM CDT	Areal Flood Advisory	MEG	Lafayette, Marshall	3 hr
Jun 9, 11:08 AM CDT	Special Weather Statement	MEG	Union	37 min
Jun 9, 11:53 AM CDT	Special Weather Statement	MEG	Lee	37 min
Jun 9, 12:12 PM CDT	Flash Flood Warning Considerable damage threat	MEG	Coahoma, Panola, Quitman, Tallahatchie, Tate, Tunica and 1 more	3 hr
Jun 9, 12:39 PM CDT	Special Weather Statement	MEG	Calhoun	36 min
Jun 9, 1:27 PM CDT	Special Weather Statement	MEG	Chickasaw	33 min
Jun 9, 2:03 PM CDT	Areal Flood Advisory	MEG	Calhoun, Lafayette, Lee, Pontotoc, Union, Yalobusha	3 hr
Jun 9, 2:14 PM CDT	Special Weather Statement	MEG	Monroe	31 min
Jun 9, 3:04 PM CDT	Flash Flood Warning	MEG	Lafayette	9 min
Jun 9, 3:10 PM CDT	Areal Flood Advisory	MEG	Coahoma, Panola, Quitman, Tallahatchie, Tate, Tunica and 1 more	3 hr

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.