Alert archive / Mississippi / Winter Storm Watches in 2021

Winter Storm Watch 2, NWS Memphis, TN

February 12, 20214 states

NWS Memphis, TN issued this winter storm watch at Feb 12, 2021, 3:17 PM CST for 4 states. It took effect at Feb 14, 2021, 12:00 PM CST. It was in force for .

The area

The counties it named.

The facts

Issued
Feb 12, 2021, 3:17 PM CST (21:17 UTC)
In effect from
Feb 14, 2021, 12:00 PM CST
Expired
Feb 13, 2021, 2:53 PM CST
In force
Issued by
NWS Memphis, TN
All 55 counties

Clay County, AR, Craighead County, AR, Crittenden County, AR, Cross County, AR, Greene County, AR, Lee County, AR, Mississippi County, AR, Phillips County, AR, Poinsett County, AR, St. Francis County, AR, Dunklin County, MO, Pemiscot County, MO, Alcorn County, MS, Benton County, MS, Calhoun County, MS, Chickasaw County, MS, Coahoma County, MS, DeSoto County, MS, Itawamba County, MS, Lafayette County, MS, Lee County, MS, Marshall County, MS, Monroe County, MS, Panola County, MS, Pontotoc County, MS, Prentiss County, MS, Quitman County, MS, Tallahatchie County, MS, Tate County, MS, Tippah County, MS, Tishomingo County, MS, Tunica County, MS, Union County, MS, Yalobusha County, MS, Benton County, TN, Carroll County, TN, Chester County, TN, Crockett County, TN, Decatur County, TN, Dyer County, TN, Fayette County, TN, Gibson County, TN, Hardeman County, TN, Hardin County, TN, Haywood County, TN, Henderson County, TN, Henry County, TN, Lake County, TN, Lauderdale County, TN, Madison County, TN, McNairy County, TN, Obion County, TN, Shelby County, TN, Tipton County, TN, Weakley County, TN

The radar

The Memphis radar (KNQA), 45 km from the middle of the area, began a volume at 21:20 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, 9.3 hours before the alert went out and 61 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-pSkew-T log-p diagram, Little Rock, AR at 12:00Z on 2021-02-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Little Rock, AR at 12:00Z on 2021-02-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -42 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
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
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
556 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
-42 m²/s²
0-3 km storm-relative helicity
89 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

099 
WWUS44 KMEG 122117
WSWMEG

URGENT - WINTER WEATHER MESSAGE
National Weather Service Memphis TN
317 PM CST Fri Feb 12 2021

...Major Winter Storm is Expected to Impact the Mid-South Sunday
Evening through Monday Evening...

.A potent upper level trough will move into the Mid-South Sunday
Night into Monday. With cold temperatures already in place,
winter precipitation is expected to fall across the Mid-South.

ARZ009-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001>017-
020>024-TNZ001>004-019>022-048>055-088>092-131100-
/O.NEW.KMEG.WS.A.0002.210215T0000Z-210216T0600Z/
Clay-Greene-Craighead-Poinsett-Mississippi-Cross-Crittenden-
St. Francis-Lee AR-Phillips-Dunklin-Pemiscot-DeSoto-Marshall-
Benton MS-Tippah-Alcorn-Tishomingo-Tunica-Tate-Prentiss-Coahoma-
Quitman-Panola-Lafayette-Union-Pontotoc-Lee MS-Itawamba-
Tallahatchie-Yalobusha-Calhoun-Chickasaw-Monroe-Lake-Obion-
Weakley-Henry-Dyer-Gibson-Carroll-Benton TN-Lauderdale-Tipton-
Haywood-Crockett-Madison-Chester-Henderson-Decatur-Shelby-Fayette-
Hardeman-McNairy-Hardin-
Including the cities of Piggott, Corning, Paragould, Jonesboro, 
Harrisburg, Blytheville, Wynne, West Memphis, Forrest City, 
Marianna, Helena, West Helena, Kennett, Caruthersville, 
Southaven, Olive Branch, Holly Springs, Ashland, Ripley MS, 
Corinth, Iuka, Tunica, Senatobia, Booneville, Clarksdale, Marks, 
Batesville, Oxford, New Albany, Pontotoc, Tupelo, Fulton, 
Charleston, Water Valley, Coffeeville, Bruce, Calhoun City, 
Houston, Okolona, Amory, Aberdeen, Tiptonville, Union City, 
Martin, Dresden, Paris, Dyersburg, Humboldt, Milan, Huntingdon, 
Camden, Ripley TN, Covington, Brownsville, Alamo, Jackson, 
Henderson, Lexington, Parsons, Decaturville, Bartlett, 
Germantown, Collierville, Memphis, Millington, Somerville, 
Oakland, Bolivar, Selmer, and Savannah
317 PM CST Fri Feb 12 2021

...WINTER STORM WATCH IN EFFECT FROM SUNDAY EVENING THROUGH
MONDAY EVENING...

* WHAT...Heavy mixed precipitation possible. Significant
  accumulations may occur across the Mid-South. At this time, 
  snow is expected to occur across Northeast Arkansas, the 
  Missouri Bootheel, and Northwest Tennessee. Further south, 
  through the Memphis Metro Area into the Jackson, Tennessee area,
  precipitation may start out as sleet then change to all snow. 
  Across Northeast Mississippi into areas of West Tennessee near 
  Savannah and Selmer, a mixture of freezing rain and sleet may 
  occur. 

* WHERE...Portions of North Mississippi, West Tennessee, East
  Arkansas and the Missouri Bootheel.

* WHEN...From Sunday evening through Monday evening.

* IMPACTS...Travel could be very difficult to impossible. The
  hazardous conditions could impact the morning or evening
  commute. The cold wind chills as low as 5 below zero could
  result in hypothermia if precautions are not taken. Power
  outages may occur in areas that receive freezing rain. 


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation. 

&&

$$

KRM
5 follow-up statements
577 
WWUS44 KMEG 130332
WSWMEG

URGENT - WINTER WEATHER MESSAGE
National Weather Service Memphis TN
932 PM CST Fri Feb 12 2021

...Major Winter Storm is Expected to Impact the Mid-South Sunday
Evening through Monday Evening...

.A potent upper level trough will move into the Mid-South Sunday
Night into Monday. With cold temperatures already in place,
winter precipitation is expected to fall across the Mid-South.

MSZ006-009-015>017-022>024-131100-
/O.NEW.KMEG.WW.Y.0005.210213T0332Z-210213T1400Z/
/O.CON.KMEG.WS.A.0002.210215T0000Z-210216T0600Z/
Tishomingo-Prentiss-Pontotoc-Lee MS-Itawamba-Calhoun-Chickasaw-
Monroe-
Including the cities of Iuka, Booneville, Pontotoc, Tupelo, 
Fulton, Bruce, Calhoun City, Houston, Okolona, Amory, 
and Aberdeen
932 PM CST Fri Feb 12 2021

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 8 AM CST SATURDAY...
...WINTER STORM WATCH REMAINS IN EFFECT FROM SUNDAY EVENING
THROUGH MONDAY EVENING...

* WHAT...For the Winter Weather Advisory, freezing rain. 
  Additional ice accumulations of a light glaze. For the Winter 
  Storm Watch, heavy mixed precipitation possible. Total snow 
  accumulations of up to two inches and ice accumulations of one 
  tenth to two tenths of an inch possible.

* WHERE...Portions of North Mississippi.

* WHEN...For the Winter Weather Advisory, until 8 AM CST 
  Saturday. For the Winter Storm Watch, from Sunday evening 
  through Monday evening.

* IMPACTS...Travel could be very difficult. The hazardous 
  conditions could impact the morning or evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. Prepare for possible
power outages. 

Monitor the latest forecasts for updates on this situation. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

ARZ009-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001>005-007-
008-010>014-020-021-TNZ001>004-019>022-048>055-088>092-131100-
/O.CON.KMEG.WS.A.0002.210215T0000Z-210216T0600Z/
Clay-Greene-Craighead-Poinsett-Mississippi-Cross-Crittenden-
St. Francis-Lee AR-Phillips-Dunklin-Pemiscot-DeSoto-Marshall-
Benton MS-Tippah-Alcorn-Tunica-Tate-Coahoma-Quitman-Panola-
Lafayette-Union-Tallahatchie-Yalobusha-Lake-Obion-Weakley-Henry-
Dyer-Gibson-Carroll-Benton TN-Lauderdale-Tipton-Haywood-Crockett-
Madison-Chester-Henderson-Decatur-Shelby-Fayette-Hardeman-McNairy-
Hardin-
Including the cities of Piggott, Corning, Paragould, Jonesboro, 
Harrisburg, Blytheville, Wynne, West Memphis, Forrest City, 
Marianna, Helena, West Helena, Kennett, Caruthersville, 
Southaven, Olive Branch, Holly Springs, Ashland, Ripley MS, 
Corinth, Tunica, Senatobia, Clarksdale, Marks, Batesville, 
Oxford, New Albany, Charleston, Water Valley, Coffeeville, 
Tiptonville, Union City, Martin, Dresden, Paris, Dyersburg, 
Humboldt, Milan, Huntingdon, Camden, Ripley TN, Covington, 
Brownsville, Alamo, Jackson, Henderson, Lexington, Parsons, 
Decaturville, Bartlett, Germantown, Collierville, Memphis, 
Millington, Somerville, Oakland, Bolivar, Selmer, and Savannah
932 PM CST Fri Feb 12 2021

...WINTER STORM WATCH REMAINS IN EFFECT FROM SUNDAY EVENING
THROUGH MONDAY EVENING...

* WHAT...Heavy mixed precipitation possible. Significant 
  accumulations may occur across the Mid-South. At this time, 
  snow is expected to occur across Northeast Arkansas, the 
  Missouri Bootheel, and Northwest Tennessee. Further south, 
  through the Memphis Metro Area into the Jackson, Tennessee 
  area, precipitation may start out as sleet then change to all 
  snow. Across Northeast Mississippi into areas of West 
  Tennessee near Savannah and Selmer, a mixture of freezing rain 
  and sleet may occur.

* WHERE...Portions of North Mississippi, West Tennessee, East 
  Arkansas and the Missouri Bootheel.

* WHEN...From Sunday evening through Monday evening.

* IMPACTS...Travel could be very difficult to impossible. The 
  hazardous conditions could impact the morning or evening 
  commute. The cold wind chills as low as 5 below zero could 
  result in hypothermia if precautions are not taken. Power 
  outages may occur in areas that receive freezing rain.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation. 

&&

$$

AC3
008 
WWUS44 KMEG 131006
WSWMEG

URGENT - WINTER WEATHER MESSAGE
National Weather Service Memphis TN
406 AM CST Sat Feb 13 2021

...A Major Winter Storm is Expected to Impact the Mid-South 
Sunday Afternoon through Monday Evening...

.A potent upper level trough will move into the Mid-South Sunday
Night into Monday. With cold temperatures already in place,
winter precipitation is expected to fall across the entire Mid-
South.

MSZ006-009-015>017-022>024-132200-
/O.CAN.KMEG.WW.Y.0005.000000T0000Z-210213T1400Z/
/O.EXT.KMEG.WS.A.0002.210214T1800Z-210216T0600Z/
Tishomingo-Prentiss-Pontotoc-Lee-Itawamba-Calhoun-Chickasaw-
Monroe-
Including the cities of Iuka, Belmont, Burnsville, Pineflat, 
Booneville, Wheeler, Baldwyn, Pontotoc, Troy, Tupelo, Fairview, 
Fulton, Evergreen, Mantachie, Banner, Bruce, Calhoun City, 
Vardaman, Derma, Houston, Trebloc, Okolona, Pyland, Amory, 
Aberdeen, Prairie, and New Wren
406 AM CST Sat Feb 13 2021

...WINTER STORM WATCH NOW IN EFFECT FROM SUNDAY AFTERNOON THROUGH
MONDAY EVENING...
...WINTER WEATHER ADVISORY IS CANCELLED...

* WHAT...Heavy mixed precipitation possible. Precipitation
  expected to begin as a mixture of freezing rain and sleet then
  gradually mixing with snow Monday afternoon. Total snow 
  accumulations of up to two inches and ice accumulations of one 
  tenth to two tenths of an inch possible.

* WHERE...Portions of northeast Mississippi.

* WHEN...From Sunday afternoon through Monday evening.

* IMPACTS...Travel could be very difficult. The hazardous 
  conditions could impact the morning or evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation. 

&&

$$

ARZ009-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001>005-007-
008-010>014-020-021-TNZ001>004-019>022-048>055-088>092-132200-
/O.EXT.KMEG.WS.A.0002.210214T1800Z-210216T0600Z/
Clay-Greene-Craighead-Poinsett-Mississippi-Cross-Crittenden-
St. Francis-Lee-Phillips-Dunklin-Pemiscot-DeSoto-Marshall-Benton-
Tippah-Alcorn-Tunica-Tate-Coahoma-Quitman-Panola-Lafayette-Union-
Tallahatchie-Yalobusha-Lake-Obion-Weakley-Henry-Dyer-Gibson-
Carroll-Lauderdale-Tipton-Haywood-Crockett-Madison-Chester-
Henderson-Decatur-Shelby-Fayette-Hardeman-McNairy-Hardin-
Including the cities of Piggott, Corning, Rector, Paragould, 
Walcott, Jonesboro, Trumann, Marked Tree, Greenfield, Harrisburg,
Lepanto, Blytheville, Osceola, Vanndale, Wynne, West Memphis, 
Marion, Forrest City, Marianna, Brickeys, West Helena, Helena, 
Kennett, Malden, Caruthersville, Hayti, Denton, Steele, 
Southaven, Lewisburg, Olive Branch, Horn Lake, Holly Springs, 
Ashland, Canaan, Hickory Flat, Lamar, Michigan City, Ripley, 
Corinth, Glen, North Tunica, Prichard, Dubbs, Little Texas, 
Tunica, Dundee, Senatobia, Arkabutla, Coldwater, Independence, 
Clarksdale, Lambert, Vance, Belen, Marks, Crowder, Sledge, 
Batesville, Endville, Glenville, Sardis, Oxford, New Albany, 
Charleston, Paynes, Tutwiler, Brazil, Webb, Enid, Water Valley, 
Coffeeville, Velma, Tiptonville, Cottonwood Grove, Ridgely, 
Union City, Clayton, Martin, Dresden, Latham, Paris, Cronanville,
Bradleytown, Dyersburg, Millsfield, Unionville, Heloise, 
Humboldt, Milan, Trenton, Dyer, McKenzie, Huntingdon, Bruceton, 
Camden, Edith, Halls, Covington, Munford, Atoka, Dixonville, 
Belle Eagle, Brownsville, Nutbush, Hillville, Alamo, Bells, 
Chestnut Bluff, Maury City, Friendship, Bemis, Jackson, 
Henderson, Jacks Creek, Mifflin, Blue Goose, Lexington, Darden, 
Parsons, Decaturville, Downtown Memphis, Frayser, 
Southwest Memphis, Somerville, Oakland, Gallaway, Bolivar, 
Whiteville, Selmer, Adamsville, Pickwick Dam, Savannah, 
and Olive Hill
406 AM CST Sat Feb 13 2021

...WINTER STORM WATCH NOW IN EFFECT FROM SUNDAY AFTERNOON THROUGH
MONDAY EVENING...

* WHAT...Heavy mixed precipitation possible. Significant
  accumulations may occur across the Mid-South. At this time, snow
  is expected to occur across Northeast Arkansas, the Missouri
  Bootheel, and far Northwest Tennessee. Further southeast,
  through the Memphis Metro Area into the Jackson, Tennessee area,
  precipitation may start out as sleet then change to all snow.
  Across Northeast Mississippi into areas of West Tennessee near
  Savannah and Selmer, a mixture of freezing rain and sleet may
  occur and mixing in with snow towards Monday afternoon.

* WHERE...Portions of North Mississippi, West Tennessee, East 
  Arkansas and the Missouri Bootheel.

* WHEN...From Sunday afternoon through Monday evening.

* IMPACTS...Travel could be very difficult to impossible. The 
  hazardous conditions could impact the morning or evening 
  commute. The cold wind chills as low as 5 below zero could 
  result in hypothermia if precautions are not taken. Power 
  outages may occur in areas that receive freezing rain.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation. 

&&

$$
688 
WWUS44 KMEG 131023
WSWMEG

URGENT - WINTER WEATHER MESSAGE
National Weather Service Memphis TN
423 AM CST Sat Feb 13 2021

...A Major Winter Storm is Expected to Impact the Mid-South
Sunday Afternoon through Monday Evening...

.A potent upper level trough will move into the Mid-South Sunday
Night into Monday. With cold temperatures already in place,
winter precipitation is expected to fall across the entire Mid-
South.

ARZ009-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001>017-
020>024-TNZ001>004-019>022-048>055-088>092-131830-
/O.CON.KMEG.WS.A.0002.210214T1800Z-210216T0600Z/
Clay-Greene-Craighead-Poinsett-Mississippi-Cross-Crittenden-
St. Francis-Lee-Phillips-Dunklin-Pemiscot-DeSoto-Marshall-Benton-
Tippah-Alcorn-Tishomingo-Tunica-Tate-Prentiss-Coahoma-Quitman-
Panola-Lafayette-Union-Pontotoc-Itawamba-Tallahatchie-Yalobusha-
Calhoun-Chickasaw-Monroe-Lake-Obion-Weakley-Henry-Dyer-Gibson-
Carroll-Lauderdale-Tipton-Haywood-Crockett-Madison-Chester-
Henderson-Decatur-Shelby-Fayette-Hardeman-McNairy-Hardin-
Including the cities of Piggott, Corning, Rector, Paragould, 
Walcott, Jonesboro, Trumann, Marked Tree, Greenfield, Harrisburg,
Lepanto, Blytheville, Osceola, Vanndale, Wynne, West Memphis, 
Marion, Forrest City, Marianna, Brickeys, West Helena, Helena, 
Kennett, Malden, Caruthersville, Hayti, Denton, Steele, 
Southaven, Lewisburg, Olive Branch, Horn Lake, Holly Springs, 
Ashland, Canaan, Hickory Flat, Lamar, Michigan City, Ripley, 
Corinth, Glen, Iuka, Belmont, Burnsville, Pineflat, North Tunica,
Prichard, Dubbs, Little Texas, Tunica, Dundee, Senatobia, 
Arkabutla, Coldwater, Independence, Booneville, Wheeler, Baldwyn,
Clarksdale, Lambert, Vance, Belen, Marks, Crowder, Sledge, 
Batesville, Endville, Glenville, Sardis, Oxford, New Albany, 
Pontotoc, Troy, Tupelo, Fairview, Fulton, Evergreen, Mantachie, 
Charleston, Paynes, Tutwiler, Brazil, Webb, Enid, Water Valley, 
Coffeeville, Velma, Banner, Bruce, Calhoun City, Vardaman, Derma,
Houston, Trebloc, Okolona, Pyland, Amory, Aberdeen, Prairie, 
New Wren, Tiptonville, Cottonwood Grove, Ridgely, Union City, 
Clayton, Martin, Dresden, Latham, Paris, Cronanville, 
Bradleytown, Dyersburg, Millsfield, Unionville, Heloise, 
Humboldt, Milan, Trenton, Dyer, McKenzie, Huntingdon, Bruceton, 
Camden, Edith, Halls, Covington, Munford, Atoka, Dixonville, 
Belle Eagle, Brownsville, Nutbush, Hillville, Alamo, Bells, 
Chestnut Bluff, Maury City, Friendship, Bemis, Jackson, 
Henderson, Jacks Creek, Mifflin, Blue Goose, Lexington, Darden, 
Parsons, Decaturville, Downtown Memphis, Frayser, 
Southwest Memphis, Somerville, Oakland, Gallaway, Bolivar, 
Whiteville, Selmer, Adamsville, Pickwick Dam, Savannah, 
and Olive Hill
423 AM CST Sat Feb 13 2021

...WINTER STORM WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON
THROUGH MONDAY EVENING...

* WHAT...Heavy mixed precipitation possible. Significant 
  accumulations may occur across the Mid-South. At this time, 
  snow is expected to occur across Northeast Arkansas, the 
  Missouri Bootheel, and far Northwest Tennessee. Further 
  southeast, through the Memphis Metro Area into the Jackson, 
  Tennessee area, precipitation may start out as sleet then 
  change to all snow. Across Northeast Mississippi into areas of 
  West Tennessee near Savannah and Selmer, a mixture of freezing 
  rain and sleet may occur and mixing in with snow towards 
  Monday afternoon.

* WHERE...North Mississippi, West Tennessee, East Arkansas and 
  the Missouri Bootheel.

* WHEN...From Sunday afternoon through Monday evening.

* IMPACTS...Travel could be very difficult to impossible. The 
  hazardous conditions could impact the morning or evening 
  commute. The cold wind chills as low as 5 below zero could 
  result in hypothermia if precautions are not taken. Power 
  outages may occur in areas that receive freezing rain.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation. 

&&

$$
664 
WWUS44 KMEG 131745
WSWMEG

URGENT - WINTER WEATHER MESSAGE
National Weather Service Memphis TN
1145 AM CST Sat Feb 13 2021

...A Major Winter Storm is Expected to Impact the Mid-South
Sunday Afternoon through Monday Evening...

.A potent upper level trough will move into the Mid-South Sunday
Night into Monday. With cold temperatures already in place,
winter precipitation is expected to fall across the entire Mid-
South.

ARZ009-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001>017-
020>024-TNZ001>004-019>022-048>055-088>092-140145-
/O.CON.KMEG.WS.A.0002.210214T1800Z-210216T0600Z/
Clay-Greene-Craighead-Poinsett-Mississippi-Cross-Crittenden-
St. Francis-Lee AR-Phillips-Dunklin-Pemiscot-DeSoto-Marshall-
Benton MS-Tippah-Alcorn-Tishomingo-Tunica-Tate-Prentiss-Coahoma-
Quitman-Panola-Lafayette-Union-Pontotoc-Lee MS-Itawamba-
Tallahatchie-Yalobusha-Calhoun-Chickasaw-Monroe-Lake-Obion-
Weakley-Henry-Dyer-Gibson-Carroll-Benton TN-Lauderdale-Tipton-
Haywood-Crockett-Madison-Chester-Henderson-Decatur-Shelby-Fayette-
Hardeman-McNairy-Hardin-
Including the cities of Piggott, Corning, Paragould, Jonesboro, 
Harrisburg, Blytheville, Wynne, West Memphis, Forrest City, 
Marianna, Helena, West Helena, Kennett, Caruthersville, 
Southaven, Olive Branch, Holly Springs, Ashland, Ripley MS, 
Corinth, Iuka, Tunica, Senatobia, Booneville, Clarksdale, Marks, 
Batesville, Oxford, New Albany, Pontotoc, Tupelo, Fulton, 
Charleston, Water Valley, Coffeeville, Bruce, Calhoun City, 
Houston, Okolona, Amory, Aberdeen, Tiptonville, Union City, 
Martin, Dresden, Paris, Dyersburg, Humboldt, Milan, Huntingdon, 
Camden, Ripley TN, Covington, Brownsville, Alamo, Jackson, 
Henderson, Lexington, Parsons, Decaturville, Bartlett, 
Germantown, Collierville, Memphis, Millington, Somerville, 
Oakland, Bolivar, Selmer, and Savannah
1145 AM CST Sat Feb 13 2021

...WINTER STORM WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON
THROUGH MONDAY EVENING...

* WHAT...Heavy mixed precipitation possible. Total snow 
  accumulations of 1 to 6 inches and ice accumulations of around 
  one tenth of an inch possible.

* WHERE...Portions of North Mississippi, West Tennessee, East 
  Arkansas and Southeast Missouri.

* WHEN...From Sunday afternoon through Monday evening.

* IMPACTS...Travel could be very difficult to impossible. The 
  hazardous conditions could impact the morning or evening 
  commute. The cold wind chills as low as 10 below zero could 
  result in hypothermia if precautions are not taken.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation. 

&&

$$

KRM
438 
WWUS44 KMEG 132053
WSWMEG

URGENT - WINTER WEATHER MESSAGE
National Weather Service Memphis TN
253 PM CST Sat Feb 13 2021

...A Major Winter Storm is Expected to Impact the Mid-South
Sunday Afternoon through Monday Evening...

.A potent upper level trough will move into the Mid-South Sunday 
Afternoon into Monday. With cold temperatures already in place, 
winter precipitation is expected to fall across the entire Mid-
South. Light wintry precipitation will begin to move in as early as 
the morning hours on Sunday. Impacts will be minimal through 
midday. During the afternoon hours, heavier precipitation will 
spread into the area continuing into the evening. A brief lull 
will then occur before a second round of heavier precipitation 
moves in on Monday.

ARZ009-018-026-MOZ113-141100-
/O.UPG.KMEG.WS.A.0002.210214T1800Z-210216T0600Z/
/O.NEW.KMEG.WS.W.0001.210214T1800Z-210216T0600Z/
/O.NEW.KMEG.WC.Y.0001.210214T0400Z-210214T1800Z/
Clay-Greene-Craighead-Dunklin-
Including the cities of Piggott, Corning, Paragould, Jonesboro, 
and Kennett
253 PM CST Sat Feb 13 2021

...WIND CHILL ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO NOON
CST SUNDAY...
...WINTER STORM WARNING IN EFFECT FROM NOON SUNDAY TO MIDNIGHT
CST MONDAY NIGHT...

* WHAT...For the Winter Storm Warning, heavy snow expected. 
  Total snow accumulations of 4 to 6 inches. For the Wind Chill 
  Advisory, very cold wind chills expected. Wind chills as low 
  as 10 below zero.

* WHERE...In Arkansas, Clay, Greene and Craighead Counties. In 
  Missouri, Dunklin County.

* WHEN...For the Winter Storm Warning, from noon Sunday to 
  midnight CST Monday night. For the Wind Chill Advisory, from 
  10 PM this evening to noon CST Sunday.

* IMPACTS...Travel could be very difficult to impossible. The 
  cold wind chills could result in hypothermia if precautions are 
  not taken.

* ADDITIONAL DETAILS...Prolonged exposure could cause damage to
  exposed skin in 30 minutes or less. The cold air will also
  impact young livestock and pets.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

ARZ027-028-035-036-048-MOZ115-TNZ001>004-019>021-048>051-088-
141100-
/O.UPG.KMEG.WS.A.0002.210214T1800Z-210216T0600Z/
/O.NEW.KMEG.WS.W.0001.210214T1800Z-210216T0600Z/
/O.NEW.KMEG.WC.Y.0001.210214T0400Z-210214T1800Z/
Poinsett-Mississippi-Cross-Crittenden-St. Francis-Pemiscot-Lake-
Obion-Weakley-Henry-Dyer-Gibson-Carroll-Lauderdale-Tipton-Haywood-
Crockett-Shelby-
Including the cities of Harrisburg, Blytheville, Wynne, 
West Memphis, Forrest City, Caruthersville, Tiptonville, 
Union City, Martin, Dresden, Paris, Dyersburg, Humboldt, Milan, 
Huntingdon, Ripley TN, Covington, Brownsville, Alamo, Bartlett, 
Germantown, Collierville, Memphis, and Millington
253 PM CST Sat Feb 13 2021

...WIND CHILL ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO NOON
CST SUNDAY...
...WINTER STORM WARNING IN EFFECT FROM NOON SUNDAY TO MIDNIGHT
CST MONDAY NIGHT...

* WHAT...For the Winter Storm Warning, heavy snow and sleet
  expected. Total snow and sleet accumulations of 5 to 7 inches. 
  For the Wind Chill Advisory, very cold wind chills expected. 
  Wind chills as low as 5 below zero.

* WHERE...Portions of West Tennessee, East Arkansas and Southeast
  the Missouri Bootheel.

* WHEN...For the Winter Storm Warning, from noon Sunday to 
  midnight CST Monday night. For the Wind Chill Advisory, from 
  10 PM this evening to noon CST Sunday.

* IMPACTS...Travel could be very difficult to impossible.  The 
  cold wind chills could result in hypothermia if precautions are 
  not taken.

* ADDITIONAL DETAILS...Prolonged exposure could cause damage to
  exposed skin in 30 minutes or less. The cold air will also
  impact young livestock and pets.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

ARZ049-058-MSZ001-007-008-010-TNZ022-052-089-141100-
/O.UPG.KMEG.WS.A.0002.210214T1800Z-210216T0600Z/
/O.NEW.KMEG.WS.W.0001.210214T1800Z-210216T0600Z/
Lee AR-Phillips-DeSoto-Tunica-Tate-Coahoma-Benton TN-Madison-
Fayette-
Including the cities of Marianna, Helena, West Helena, Southaven,
Olive Branch, Tunica, Senatobia, Clarksdale, Camden, Jackson, 
Somerville, and Oakland
253 PM CST Sat Feb 13 2021

...WINTER STORM WARNING IN EFFECT FROM NOON SUNDAY TO MIDNIGHT
CST MONDAY NIGHT...

* WHAT...Heavy mixed precipitation expected. Total snow and sleet 
  accumulations of 5 to 7 inches and ice accumulations of a light 
  glaze.

* WHERE...Portions of North Mississippi, West Tennessee and East 
  Arkansas.

* WHEN...From noon Sunday to midnight CST Monday night.

* IMPACTS...Travel could be very difficult to impossible.  The 
  cold wind chills as low as zero could result in hypothermia if 
  precautions are not taken.

* ADDITIONAL DETAILS...Prolonged exposure could cause damage to
  exposed skin in 30 minutes or less. The cold air will also
  impact young livestock and pets.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

MSZ002>005-011>015-020>022-TNZ053>055-090>092-141100-
/O.UPG.KMEG.WS.A.0002.210214T1800Z-210216T0600Z/
/O.NEW.KMEG.WS.W.0001.210214T1800Z-210216T0600Z/
Marshall-Benton MS-Tippah-Alcorn-Quitman-Panola-Lafayette-Union-
Pontotoc-Tallahatchie-Yalobusha-Calhoun-Chester-Henderson-Decatur-
Hardeman-McNairy-Hardin-
Including the cities of Holly Springs, Ashland, Ripley MS, 
Corinth, Marks, Batesville, Oxford, New Albany, Pontotoc, 
Charleston, Water Valley, Coffeeville, Bruce, Calhoun City, 
Henderson, Lexington, Parsons, Decaturville, Bolivar, Selmer, 
and Savannah
253 PM CST Sat Feb 13 2021

...WINTER STORM WARNING IN EFFECT FROM NOON SUNDAY TO MIDNIGHT
CST MONDAY NIGHT...

* WHAT...Heavy mixed precipitation expected. Total snow and sleet
  accumulations of 3 to 5 inches and ice accumulations of around 
  one tenth of an inch.

* WHERE...Portions of North Mississippi and West Tennessee.

* WHEN...From noon Sunday to midnight CST Monday night.

* IMPACTS...Travel could be very difficult to impossible.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

MSZ006-009-016-017-023-024-141100-
/O.UPG.KMEG.WS.A.0002.210214T1800Z-210216T0600Z/
/O.NEW.KMEG.WS.W.0001.210214T1800Z-210216T0600Z/
Tishomingo-Prentiss-Lee MS-Itawamba-Chickasaw-Monroe-
Including the cities of Iuka, Booneville, Tupelo, Fulton, 
Houston, Okolona, Amory, and Aberdeen
253 PM CST Sat Feb 13 2021

...WINTER STORM WARNING IN EFFECT FROM NOON SUNDAY TO MIDNIGHT
CST MONDAY NIGHT...

* WHAT...Heavy mixed precipitation expected. Total snow and sleet
  accumulations of up to two inches and ice accumulations of one 
  tenth to three tenths of an inch.

* WHERE...Portions of North Mississippi.

* WHEN...From noon Sunday to midnight CST Monday night.

* IMPACTS...Power outages and tree damage are likely due to the 
  ice. Travel could be nearly impossible. The hazardous 
  conditions could impact the morning or evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

KRM

What forecasters said that day

The local office's own words before this winter storm watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Memphis, TN wrote its last area forecast discussion before this winter storm watch went out at Feb 12, 11:24 AM CST, 3 hours 53 minutes earlier.

Area forecast discussion, Feb 12, 11:24 AM CST, 3 hours 53 minutes before
Area Forecast Discussion
National Weather Service Memphis TN
1124 AM CST Fri Feb 12 2021

.UPDATE...

Updated for the 18Z Aviation Discussion

&&

.PREV DISCUSSION... /issued 948 AM CST Fri Feb 12 2021/

UPDATE...

Arctic air continues to plunge into the Mid-South this morning.
Current temperatures range from the mid 20s near the AR/MO and
KY/TN borders to the mid 30s across Monroe County, Mississippi.
Temperatures won't warm too much as cold air advection is
occurring across the region. A few showers continue to skirt
portions of Northeast Mississippi at this time. Will update to
add some small POPS. Otherwise, rest of the forecast looks good.

KRM

DISCUSSION... /issued 524 AM CST Fri Feb 12 2021/

Surface analysis this morning places a quasi- stationary boundary
located over Northern Georgia and South Carolina and a cold front
from Southern Alabama back into the Northern Gulf of Mexico.
Meanwhile, across the Mid-South, LAPS soundings and WSR-88D Vad
Wind Profile depicted a steep low level arctic inversion. This
steep inversion combined with NNE boundary layer winds and some
upper level forcing associated with a departing upper level jet
produced some light freezing drizzle Thursday evening into early
this morning. KNQA/KGWX WSR-88D radar trends depict light
precipitation occurring over Northwest Mississippi moving ENE. As
of 4 AM CST, temperatures across the Mid-South are predominantly
in the 20s with lower 30s occurring over NE Mississippi from
Tupelo to the southeast. Wintry precipitation concerns will remain
the primary focus in the forecast for the next 7 days in this
morning/s forecast issuance.

Radar trends over the past hour have indicated the development of
light precipitation over areas just southwest of Oxford and
possibly freezing rain as indicated by LAPS soundings. A Winter
Weather Advisory was issued early this morning through 6 AM for
the freezing drizzle and may need to be extended for a portion of
North Mississippi to account for the freezing rain.

Otherwise, mainly precipitation free weather is expected across
the Mid-South today with temperatures remaining mostly below
freezing. A subtle and weak shortwave trough will move across the
Lower Mississippi Valley tonight. There is a potential for some
light rain/freezing rain over Northeast Mississippi with
precipitation amounts remaining relatively light around a couple
of hundredths at best. This will continue to be assessed
throughout the day in the event headlines are needed for later
tonight across the aforementioned area.

Gusty NNE winds combined with lows Saturday night in the teens may
result in wind chill values dropping into the single digits below
zero across portions of the Missouri Bootheel and Northeast
Arkansas. This may necessitate a Wind Chill Advisory if trends
continue in subsequent forecasts.

Models are continuing to show an potent open wave trough dropping
out of the Rockies and into the Southern Plains on Sunday then
rotating through the Middle and Lower Mississippi Valleys Sunday
night into Monday night. It appears that a lead shortwave trough
may enter the the region Sunday afternoon into Sunday evening,
resulting the development of precipitation across the area with
the best chances of precipitation occurring on Monday as the upper
level trough rotates through the region. Mixed precipitation
types will remain a challenge with this system with freezing rain,
sleet, and snow all possible especially along and south of I-40,
and mostly sleet and/or snow to the northwest. It appears that
headlines may be warranted for this next system but exact
precipitation types along with amounts will continue to be
further assessed in upcoming forecasts.

Long term models indicate yet another upper level trough will move
through the Lower Mississippi Valley for mid to late next week
bringing another chance of wintry mixed precipitation to the Mid-
South.

CJC

&&

.AVIATION...
18Z TAF cycle

Current VFR ceilings across northern sections of the Mid-South
will end by this evening as low clouds currently over the
remainder of the region move back north. Most areas will see IFR
ceilings for this afternoon through Saturday morning with some
improvement to MVFR ceilings by the end of the forecast period.
Winds will be from the north at around 10 knots for much of the
forecast period.

ARS

&&

.MEG WATCHES/WARNINGS/ADVISORIES...
AR...None.
MO...None.
MS...None.
TN...None.
&&
Hazardous weather outlook, Feb 12, 5:38 AM CST, 9 hours 39 minutes before
Hazardous Weather Outlook
National Weather Service Memphis TN
538 AM CST Fri Feb 12 2021

ARZ009-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001>017-
020>024-TNZ001>004-019>022-048>055-088>092-131345-
Alcorn-Benton-Calhoun-Carroll-Chester-Chickasaw-Clay-Coahoma-
Craighead-Crittenden-Crockett-Cross-DeSoto-Decatur-Dunklin-Dyer-
Fayette-Gibson-Greene-Hardeman-Hardin-Haywood-Henderson-Henry-
Itawamba-Lafayette-Lake-Lauderdale-Lee-Madison-Marshall-McNairy-
Mississippi-Monroe-Obion-Panola-Pemiscot-Phillips-Poinsett-
Pontotoc-Prentiss-Quitman-Shelby-St. Francis-Tallahatchie-Tate-
Tippah-Tipton-Tishomingo-Tunica-Union-Weakley-Yalobusha-
538 AM CST Fri Feb 12 2021

This hazardous weather outlook is for portions of East Arkansas...
the Missouri Bootheel...North Mississippi...and West Tennessee.

.DAY ONE...Today and Tonight

There is a chance of light freezing rain late tonight into
Saturday over portions of Northeast Mississippi.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Wind chill values will fall into the single digits at times
through Wednesday. Below zero wind chills are possible across
mainly northern areas of the Mid-South Sunday through Tuesday
mornings.

There is increasing confidence in a significant winter storm late
Sunday into Monday. Significant accumulations of snow, sleet and
ice are possible across much of the Mid-South.

Another round of winter weather is possible Wednesday into
Thursday.

Please refer to the latest forecasts in the coming days for
details regarding the evolution of the cold air surge and
potential wintry weather.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated at this time.

In the hours before

Special weather statement, Feb 12, 2:30 PM CST, 47 minutes before
Special Weather Statement
National Weather Service Memphis TN
230 PM CST Fri Feb 12 2021

MSZ004>006-009-013>017-021>024-TNZ092-122230-
Tippah-Alcorn-Tishomingo-Prentiss-Lafayette-Union-Pontotoc-Lee MS-
Itawamba-Yalobusha-Calhoun-Chickasaw-Monroe-Hardin-
Including the cities of Ripley MS, Corinth, Iuka, Booneville,
Oxford, New Albany, Pontotoc, Tupelo, Fulton, Water Valley,
Coffeeville, Bruce, Calhoun City, Houston, Okolona, Amory,
Aberdeen, and Savannah
230 PM CST Fri Feb 12 2021

...Light icing could occur later tonight into Saturday morning...

After midnight patchy to scattered light freezing rain or drizzle could
develop over the area. With surfaces below freezing any
precipitation could freeze on impact and cause travel impacts,
especially on bridges and overpasses.

Travel interests later tonight into Saturday morning are advised to
take caution and monitor the latest forecasts.

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 12, 12:40 AM CSTWinter Weather AdvisoryMEGDunklin, Pemiscot5 hr

Nearby

Winter Storm Watches in Mississippi, 2021Winter Storm Watches in Tennessee, 2021Winter Storm Watches in Arkansas, 2021Every winter storm watch 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.