Alert archive / Mississippi / Flash Flood Warnings in 2021

Flash Flood Warning 64, NWS Memphis, TN

June 10, 2021Coahoma County, Panola County, Quitman County, Mississippi

NWS Memphis, TN issued this flash flood warning at Jun 10, 2021, 8:24 AM CDT for Coahoma County, Panola County, Quitman County, Mississippi. It was in force for 4 hr. 1 report 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 10, 2021, 8:24 AM CDT (13:24 UTC)
Expired: Jun 10, 2021, 12:00 PM CDT
In force: 4 hr
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Flood severity: None

Counties Coahoma County, MS, Panola County, MS, Quitman County, MS

The radar

The Memphis radar (KNQA), 132 km from the middle of the area, began a volume at 13:25 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 10, 10:34 AM CDT	FLASH FLOOD	Clarksdale, MS	ONE BUSINESS HAS FLOODED AND SEVERAL HOMES IN TOWN ARE THREATENED BY FLOOD WATERS. OTHER FLOODING OBSERVED ALONG RITCHIE AVE.

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, 1.4 hours before the alert went out and 78 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: 1521 J/kg
Mixed-layer CIN: -45 J/kg
Mixed-layer LCL: 945 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 62 m²/s²
0-3 km storm-relative helicity: 61 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.0

Open this sounding in Storm Lab

The text

As transmitted.

789 
WGUS54 KMEG 101324
FFWMEG
MSC027-107-119-101700-
/O.NEW.KMEG.FF.W.0064.210610T1324Z-210610T1700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Memphis TN
824 AM CDT Thu Jun 10 2021

The National Weather Service in Memphis has issued a

* Flash Flood Warning for...
  Coahoma County in northwestern Mississippi...
  West Central Panola County in northwestern Mississippi...
  Central Quitman County in northwestern Mississippi...

* Until noon CDT.

* At 824 AM CDT, runoff from earlier thunderstorms has resulted in 
  flash flooding across the warned area. The heavy rainfall is 
  moving out of the area, but many areas picked up an additional 2 
  and 4 inches of rain over the past few hours. Flash flooding is 
  ongoing or expected to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Clarksdale, Marks, Jonestown, Sledge, Belen, Darling, Kings, 
  Dublin, Curtis Station, Pleasant Grove, Coahoma, Lyon, Falcon, 
  West Marks, Matagorda, Clover Hill, Roseacres, Rudyard, Hinchcliff 
  and Essex.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3425 9069 3437 9058 3441 9042 3444 9015
      3443 9007 3441 9003 3430 9000 3424 9040
      3419 9046 3399 9046 3399 9066 3412 9066
      3412 9070

FLASH FLOOD...RADAR INDICATED

$$

MJ

1 follow-up statement

798 
WGUS74 KMEG 101533
FFSMEG

Flash Flood Statement
National Weather Service Memphis TN
1033 AM CDT Thu Jun 10 2021

MSC027-107-119-101700-
/O.CON.KMEG.FF.W.0064.000000T0000Z-210610T1700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Coahoma MS-Panola MS-Quitman MS-
1033 AM CDT Thu Jun 10 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL NOON CDT TODAY FOR 
COAHOMA, WEST CENTRAL PANOLA AND CENTRAL QUITMAN COUNTIES...

At 1033 AM CDT, runoff from earlier heavy rainfall will continue to 
produce flash flooding across the warned area. Between 2 and 5 
inches of rain have fallen since midnight. Flash flooding is ongoing 
or expected to begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar.

IMPACT...Flash flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other poor
         drainage and low-lying areas.

Some locations that will experience flash flooding include...
  Clarksdale, Marks, Jonestown, Sledge, Belen, Darling, Kings, 
  Dublin, Curtis Station, Pleasant Grove, Coahoma, Lyon, Falcon, 
  West Marks, Matagorda, Clover Hill, Roseacres, Rudyard, Hinchcliff 
  and Essex.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 3425 9069 3437 9058 3441 9042 3444 9015
      3443 9007 3441 9003 3430 9000 3424 9040
      3419 9046 3399 9046 3399 9066 3412 9066
      3412 9070

FLASH FLOOD...RADAR INDICATED

$$

MJ

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 10, 1:15 AM CDT	Areal Flood Advisory	MEG	Coahoma, Panola, Quitman, Tallahatchie, Yalobusha	55 min
Jun 10, 1:36 AM CDT	Areal Flood Advisory	MEG	Calhoun, Chickasaw, Lafayette, Yalobusha	3 hr
Jun 10, 2:10 AM CDT	Flash Flood Warning Emergency	MEG	Coahoma, Panola, Quitman, Tallahatchie, Yalobusha	7 hr
Jun 10, 2:57 AM CDT	Areal Flood Advisory	MEG	Coahoma, DeSoto, Lafayette, Panola, Quitman, Tate and 1 more	29 min
Jun 10, 3:26 AM CDT	Flash Flood Warning	MEG	Coahoma, Lafayette, Panola, Quitman, Tate, Tunica	5 hr
Jun 10, 3:50 AM CDT	Areal Flood Advisory	MEG	Calhoun, Lafayette, Marshall, Panola, Pontotoc, Tate	43 min
Jun 10, 4:06 AM CDT	Special Weather Statement	MEG	Quitman	24 min
Jun 10, 4:33 AM CDT	Flash Flood Warning	MEG	Calhoun, Lafayette, Panola, Pontotoc	55 min
Jun 10, 4:33 AM CDT	River Flood Warning	MEG	Tallahatchie	12 days
Jun 10, 4:36 AM CDT	Areal Flood Advisory	MEG	Calhoun, Chickasaw, Lafayette, Yalobusha	3 hr
Jun 10, 4:39 AM CDT	Areal Flood Advisory	MEG	Coahoma	2 hr
Jun 10, 5:24 AM CDT	Special Weather Statement	MEG	Tallahatchie	36 min
Jun 10, 7:03 AM CDT	River Flood Warning	MEG	Itawamba	12 hr
Jun 10, 7:21 AM CDT	Areal Flood Advisory	MEG	Coahoma	54 min
Jun 10, 8:47 AM CDT	Flash Flood Warning EmergencyCatastrophic damage threat	MEG	Panola, Quitman, Tallahatchie, Yalobusha	3 hr
Jun 10, 11:44 AM CDT	Flash Flood Warning Considerable damage threat	MEG	Coahoma, Panola, Quitman, Tallahatchie, Yalobusha	11 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.