Alert archive / Tennessee / Wind Chill Advisories in 2021
Wind Chill Advisory 3, NWS Memphis, TN
NWS Memphis, TN issued this wind chill advisory at Feb 18, 2021, 2:54 PM CST for 4 states. It took effect at Feb 19, 2021, 12:00 AM CST. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Feb 18, 2021, 2:54 PM CST (20:54 UTC)
- In effect from
- Feb 19, 2021, 12:00 AM CST
- Expired
- Feb 19, 2021, 9:00 AM CST
- In force
- 9 hr
- Issued by
- NWS Memphis, TN
All 25 counties
Clay County, AR, Craighead County, AR, Crittenden County, AR, Cross County, AR, Greene County, AR, Lee County, AR, Mississippi County, AR, Poinsett County, AR, St. Francis County, AR, Dunklin County, MO, Pemiscot County, MO, DeSoto County, MS, Tunica County, MS, Crockett County, TN, Dyer County, TN, Gibson County, TN, Haywood County, TN, Henry County, TN, Lake County, TN, Lauderdale County, TN, Madison County, TN, Obion County, TN, Shelby County, TN, Tipton County, TN, Weakley County, TN
The radar
The Memphis radar (KNQA), 40 km from the middle of the area, began a volume at 20:59 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, 8.9 hours before the alert went out and 98 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 588 m above ground
- 0-6 km bulk shear
- 100 kt
- 0-1 km storm-relative helicity
- -4 m²/s²
- 0-3 km storm-relative helicity
- 170 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
294 WWUS44 KMEG 182054 WSWMEG URGENT - WINTER WEATHER MESSAGE National Weather Service Memphis TN 254 PM CST Thu Feb 18 2021 ...Light winter precipitation continue this afternoon followed by very cold temperatures tonight... .Some light wintry precipitation continues to fall across portions of west Tennessee and north Mississippi. Most of the precipitation should exit the region by this evening. Little if any accumulation is expected this afternoon. Very cold air will move into the Mid- South tonight producing wind chill values below zero mainly across northern and western sections of the Mid-South. MSZ004>006-009-013>017-020>024-TNZ055-092-190000- /O.CAN.KMEG.WW.Y.0007.000000T0000Z-210219T0000Z/ /O.NEW.KMEG.WW.Y.0008.210218T2100Z-210219T0000Z/ Tippah-Alcorn-Tishomingo-Prentiss-Lafayette-Union-Pontotoc-Lee MS- Itawamba-Tallahatchie-Yalobusha-Calhoun-Chickasaw-Monroe-Decatur- Hardin- Including the cities of Ripley MS, Corinth, Iuka, Booneville, Oxford, New Albany, Pontotoc, Tupelo, Fulton, Charleston, Water Valley, Coffeeville, Bruce, Calhoun City, Houston, Okolona, Amory, Aberdeen, Parsons, Decaturville, and Savannah 254 PM CST Thu Feb 18 2021 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM CST THIS EVENING... * WHAT...Light wintry precipitation is expected. * WHERE...Portions of North Mississippi and West Tennessee. * WHEN...Until 6 PM CST this evening. * IMPACTS...The hazardous conditions could impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ MSZ001-007-TNZ001>004-019-020-048>052-088-190500- /O.CAN.KMEG.WW.Y.0007.000000T0000Z-210219T0000Z/ /O.NEW.KMEG.WC.Y.0003.210219T0600Z-210219T1500Z/ DeSoto-Tunica-Lake-Obion-Weakley-Henry-Dyer-Gibson-Lauderdale- Tipton-Haywood-Crockett-Madison-Shelby- Including the cities of Southaven, Olive Branch, Tunica, Tiptonville, Union City, Martin, Dresden, Paris, Dyersburg, Humboldt, Milan, Ripley TN, Covington, Brownsville, Alamo, Jackson, Bartlett, Germantown, Collierville, Memphis, and Millington 254 PM CST Thu Feb 18 2021 ...WIND CHILL ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM CST FRIDAY... ...WINTER WEATHER ADVISORY IS CANCELLED... * WHAT...Very cold wind chills expected. Wind chills as low as zero. * WHERE...Portions of North Mississippi and West Tennessee. * WHEN...From midnight tonight to 9 AM CST Friday. * IMPACTS...The cold wind chills could result in hypothermia if precautions are not taken. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$ MSZ002-003-008-010>012-TNZ021-022-053-054-089>091-182200- /O.CAN.KMEG.WW.Y.0007.000000T0000Z-210219T0000Z/ Marshall-Benton MS-Tate-Coahoma-Quitman-Panola-Carroll-Benton TN- Chester-Henderson-Fayette-Hardeman-McNairy- Including the cities of Holly Springs, Ashland, Senatobia, Clarksdale, Marks, Batesville, Huntingdon, Camden, Henderson, Lexington, Somerville, Oakland, Bolivar, and Selmer 254 PM CST Thu Feb 18 2021 ...WINTER WEATHER ADVISORY IS CANCELLED... Wintry precipitation has ended in these areas. $$ ARZ009-018-026>028-035-036-048-049-MOZ113-115-190500- /O.NEW.KMEG.WC.Y.0003.210219T0600Z-210219T1500Z/ Clay-Greene-Craighead-Poinsett-Mississippi-Cross-Crittenden- St. Francis-Lee AR-Dunklin-Pemiscot- Including the cities of Piggott, Corning, Paragould, Jonesboro, Harrisburg, Blytheville, Wynne, West Memphis, Forrest City, Marianna, Kennett, and Caruthersville 254 PM CST Thu Feb 18 2021 ...WIND CHILL ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM CST FRIDAY... * WHAT...Very cold wind chills expected. Wind chills as low as 5 below zero. * WHERE...Portions of East Arkansas and Southeast Missouri. * WHEN...From midnight tonight to 9 AM CST Friday. * IMPACTS...The cold wind chills could result in hypothermia if precautions are not taken. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$
3 follow-up statements
435 WWUS44 KMEG 182353 WSWMEG URGENT - WINTER WEATHER MESSAGE National Weather Service Memphis TN 553 PM CST Thu Feb 18 2021 ...Dangerous Cold Across the Mid-South Tonight... .Wintry precipitation has ended across most of the Mid-South but colder air will result in dangerous wind chill readings overnight into early Friday. The wind chill is forecast to drop below 0 degrees in a few areas by sunrise. MSZ004>006-009-013>017-020>024-TNZ055-092-190100- /O.CAN.KMEG.WW.Y.0008.000000T0000Z-210219T0000Z/ Tippah-Alcorn-Tishomingo-Prentiss-Lafayette-Union-Pontotoc-Lee MS- Itawamba-Tallahatchie-Yalobusha-Calhoun-Chickasaw-Monroe-Decatur- Hardin- Including the cities of Ripley MS, Corinth, Iuka, Booneville, Oxford, New Albany, Pontotoc, Tupelo, Fulton, Charleston, Water Valley, Coffeeville, Bruce, Calhoun City, Houston, Okolona, Amory, Aberdeen, Parsons, Decaturville, and Savannah 553 PM CST Thu Feb 18 2021 ...WINTER WEATHER ADVISORY IS CANCELLED... A few flurries are possible this evening, but no additional accumulations are anticipated. Thus, the Winter Weather Advisory is cancelled. $$ ARZ009-018-026>028-035-036-048-049-MOZ113-115-MSZ001-007- TNZ001>004-019-020-048>052-088-190600- /O.CON.KMEG.WC.Y.0003.210219T0600Z-210219T1500Z/ Clay-Greene-Craighead-Poinsett-Mississippi-Cross-Crittenden- St. Francis-Lee AR-Dunklin-Pemiscot-DeSoto-Tunica-Lake-Obion- Weakley-Henry-Dyer-Gibson-Lauderdale-Tipton-Haywood-Crockett- Madison-Shelby- Including the cities of Piggott, Corning, Paragould, Jonesboro, Harrisburg, Blytheville, Wynne, West Memphis, Forrest City, Marianna, Kennett, Caruthersville, Southaven, Olive Branch, Tunica, Tiptonville, Union City, Martin, Dresden, Paris, Dyersburg, Humboldt, Milan, Ripley TN, Covington, Brownsville, Alamo, Jackson, Bartlett, Germantown, Collierville, Memphis, and Millington 553 PM CST Thu Feb 18 2021 ...WIND CHILL ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM CST FRIDAY... * WHAT...Very cold wind chills expected. Wind chill as low as 5 below zero. * WHERE...Portions of North Mississippi, West Tennessee, East Arkansas and Southeast Missouri. * WHEN...From midnight tonight to 9 AM CST Friday. * IMPACTS...Prolonged exposure to these conditions may result in hypothermia or frostbite. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$ MJ
445 WWUS44 KMEG 190514 WSWMEG URGENT - WINTER WEATHER MESSAGE National Weather Service Memphis TN 1114 PM CST Thu Feb 18 2021 ...Dangerous Cold Across the Mid-South Tonight... .Very cold air and north winds up to 10 mph will result in dangerous wind chill readings overnight into early Friday. The wind chill is forecast to drop to near 0 degrees along and north of Interstate 40. ARZ009-018-026>028-035-036-048-049-MOZ113-115-MSZ001-007- TNZ001>004-019-020-048>052-088-191500- /O.CON.KMEG.WC.Y.0003.210219T0600Z-210219T1500Z/ Clay-Greene-Craighead-Poinsett-Mississippi-Cross-Crittenden- St. Francis-Lee AR-Dunklin-Pemiscot-DeSoto-Tunica-Lake-Obion- Weakley-Henry-Dyer-Gibson-Lauderdale-Tipton-Haywood-Crockett- Madison-Shelby- Including the cities of Piggott, Corning, Paragould, Jonesboro, Harrisburg, Blytheville, Wynne, West Memphis, Forrest City, Marianna, Kennett, Caruthersville, Southaven, Olive Branch, Tunica, Tiptonville, Union City, Martin, Dresden, Paris, Dyersburg, Humboldt, Milan, Ripley TN, Covington, Brownsville, Alamo, Jackson, Bartlett, Germantown, Collierville, Memphis, and Millington 1114 PM CST Thu Feb 18 2021 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST FRIDAY... * WHAT...Very cold wind chills expected. Wind chill as low as zero. * WHERE...Portions of North Mississippi, West Tennessee, East Arkansas, and Southeast Missouri. * WHEN...Until 9 AM CST Friday. * IMPACTS...Prolonged exposure to these conditions may result in hypothermia and frostbite. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$ MJ
306 WWUS44 KMEG 190934 WSWMEG URGENT - WINTER WEATHER MESSAGE National Weather Service Memphis TN 334 AM CST Fri Feb 19 2021 ...Dangerous Cold Across the Mid-South This Morning... .Very cold air and north winds will result in dangerous wind chill readings this morning. The wind chill is forecast to drop to near 0 degrees along and north of Interstate 40. ARZ009-018-026>028-035-036-048-049-MOZ113-115-MSZ001-007- TNZ001>004-019-020-048>052-088-191500- /O.CON.KMEG.WC.Y.0003.000000T0000Z-210219T1500Z/ Clay-Greene-Craighead-Poinsett-Mississippi-Cross-Crittenden- St. Francis-Lee AR-Dunklin-Pemiscot-DeSoto-Tunica-Lake-Obion- Weakley-Henry-Dyer-Gibson-Lauderdale-Tipton-Haywood-Crockett- Madison-Shelby- Including the cities of Piggott, Corning, Paragould, Jonesboro, Harrisburg, Blytheville, Wynne, West Memphis, Forrest City, Marianna, Kennett, Caruthersville, Southaven, Olive Branch, Tunica, Tiptonville, Union City, Martin, Dresden, Paris, Dyersburg, Humboldt, Milan, Ripley TN, Covington, Brownsville, Alamo, Jackson, Bartlett, Germantown, Collierville, Memphis, and Millington 334 AM CST Fri Feb 19 2021 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING... * WHAT...Very cold wind chills expected. Wind chill as low as zero. * WHERE...Portions of North Mississippi, West Tennessee, East Arkansas, and Southeast Missouri. * WHEN...Until 9 AM CST Friday. * IMPACTS...Prolonged exposure to these conditions may result in hypothermia and frostbite. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$
The office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 18, 9:07 AM CST | Winter Weather Advisory | MEG | Benton, Carroll, Chester, Crockett, Decatur, Dyer and 15 more | 6 hr |
| Feb 18, 2:54 PM CST | Winter Weather Advisory | MEG | Decatur, Hardin | 3 hr |
Nearby
Wind Chill Advisories in Tennessee, 2021Wind Chill Advisories in Arkansas, 2021Wind Chill Advisories in Mississippi, 2021Every wind chill advisory 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.