Alert archive / Arkansas / Freeze Warnings in 2021
Freeze Warning 4, NWS Memphis, TN
NWS Memphis, TN issued this freeze warning at Apr 20, 2021, 2:18 PM CDT for Dunklin County, Pemiscot County, Missouri; 5 counties in Arkansas; 5 counties in Tennessee. It took effect at Apr 21, 2021, 3:00 AM CDT. 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 counties it named.
The facts
- Issued
- Apr 20, 2021, 2:18 PM CDT (19:18 UTC)
- In effect from
- Apr 21, 2021, 3:00 AM CDT
- Expired
- Apr 21, 2021, 9:00 AM CDT
- In force
- 6 hr
- Issued by
- NWS Memphis, TN
Counties Clay County, AR, Craighead County, AR, Greene County, AR, Mississippi County, AR, Poinsett County, AR, Dunklin County, MO, Pemiscot County, MO, Dyer County, TN, Lake County, TN, Lauderdale County, TN, Obion County, TN, Weakley County, TN
The radar
The Memphis radar (KNQA), 80 km from the middle of the area, began a volume at 19:18 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, 7.3 hours before the alert went out and 137 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
- 2069 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 31 m²/s²
- 0-3 km storm-relative helicity
- 15 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
255 WWUS74 KMEG 201918 NPWMEG URGENT - WEATHER MESSAGE National Weather Service Memphis TN 218 PM CDT Tue Apr 20 2021 ARZ035-048-202030- /O.CAN.KMEG.FZ.A.0003.210421T0800Z-210421T1400Z/ Cross-St. Francis- Including the cities of Wynne and Forrest City 218 PM CDT Tue Apr 20 2021 ...FREEZE WATCH IS CANCELLED... Temperatures are expected to remain slightly above freezing overnight. Thus, the Freeze Watch has been cancelled. $$ ARZ009-018-026-027-MOZ113-115-210600- /O.UPG.KMEG.FZ.A.0003.210421T0800Z-210421T1400Z/ /O.NEW.KMEG.FZ.W.0004.210421T0800Z-210421T1400Z/ Clay-Greene-Craighead-Poinsett-Dunklin-Pemiscot- Including the cities of Piggott, Corning, Paragould, Jonesboro, Harrisburg, Kennett, and Caruthersville 218 PM CDT Tue Apr 20 2021 ...FREEZE WARNING IN EFFECT FROM 3 AM TO 9 AM CDT WEDNESDAY... * WHAT...Temperatures 31 to 32 degrees. * WHERE...In Arkansas, Clay, Greene, Craighead and Poinsett Counties. In Missouri, Dunklin and Pemiscot Counties. * WHEN...From 3 AM to 9 AM CDT Wednesday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...This is a very late season freeze. Bring sensitive plants indoors or cover them with a blanket, sheet, or other covering. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ ARZ028-TNZ001>003-019-048-210600- /O.NEW.KMEG.FZ.W.0004.210421T0800Z-210421T1400Z/ Mississippi-Lake-Obion-Weakley-Dyer-Lauderdale- Including the cities of Blytheville, Tiptonville, Union City, Martin, Dresden, Dyersburg, and Ripley TN 218 PM CDT Tue Apr 20 2021 ...FREEZE WARNING IN EFFECT FROM 3 AM TO 9 AM CDT WEDNESDAY... * WHAT...Temperatures around 32 degrees. * WHERE...In Tennessee, Lake, Obion, Weakley, Dyer and Lauderdale Counties. In Arkansas, Mississippi County. * WHEN...From 3 AM to 9 AM CDT Wednesday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...This is a very late season freeze. Bring sensitive plants indoors or cover them with a blanket, sheet, or other covering. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ MJ
3 follow-up statements
953 WWUS74 KMEG 210233 AAA NPWMEG URGENT - WEATHER MESSAGE...UPDATED National Weather Service Memphis TN 933 PM CDT Tue Apr 20 2021 ARZ009-018-026>028-MOZ113-115-TNZ001>003-019-048-211400- /O.CON.KMEG.FZ.W.0004.210421T0800Z-210421T1400Z/ Clay-Greene-Craighead-Poinsett-Mississippi-Dunklin-Pemiscot-Lake- Obion-Weakley-Dyer-Lauderdale- Including the cities of Piggott, Corning, Paragould, Jonesboro, Harrisburg, Blytheville, Kennett, Caruthersville, Tiptonville, Union City, Martin, Dresden, Dyersburg, and Ripley TN 933 PM CDT Tue Apr 20 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM 3 AM TO 9 AM CDT WEDNESDAY... * WHAT...Sub-freezing temperatures as low as 31 expected. * WHERE...Portions of West Tennessee, East Arkansas and Southeast Missouri. * WHEN...From 3 AM to 9 AM CDT Wednesday. * IMPACTS...Frost and freeze conditions may kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...This is a very late season freeze. Bring sensitive plants indoors or cover them with a blanket, sheet, or other covering. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ PWB
274 WWUS74 KMEG 210802 NPWMEG URGENT - WEATHER MESSAGE National Weather Service Memphis TN 302 AM CDT Wed Apr 21 2021 TNZ003-221200- /O.NEW.KMEG.FR.Y.0003.210422T0600Z-210422T1200Z/ /O.CON.KMEG.FZ.W.0004.000000T0000Z-210421T1400Z/ Weakley- Including the cities of Martin and Dresden 302 AM CDT Wed Apr 21 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM CDT THIS MORNING... ...FROST ADVISORY IN EFFECT FROM 1 AM TO 7 AM CDT THURSDAY... * WHAT...For the Freeze Warning, sub-freezing temperatures as low as 33. For the Frost Advisory, temperatures as low as 36 will result in frost formation. * WHERE...Weakley County. * WHEN...For the Freeze Warning, until 9 AM CDT this morning. For the Frost Advisory, from 1 AM to 7 AM CDT Thursday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ ARZ009-018-026>028-MOZ113-115-TNZ001-002-019-048-211400- /O.CON.KMEG.FZ.W.0004.000000T0000Z-210421T1400Z/ Clay-Greene-Craighead-Poinsett-Mississippi-Dunklin-Pemiscot-Lake- Obion-Dyer-Lauderdale- Including the cities of Piggott, Corning, Paragould, Jonesboro, Harrisburg, Blytheville, Kennett, Caruthersville, Tiptonville, Union City, Dyersburg, and Ripley TN 302 AM CDT Wed Apr 21 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM CDT THIS MORNING... * WHAT...Sub-freezing temperatures as low as 31 expected. * WHERE...Portions of West Tennessee, East Arkansas and Southeast Missouri. * WHEN...From 3 AM to 9 AM CDT Wednesday. * IMPACTS...Frost and freeze conditions may kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...This is a very late season freeze. Bring sensitive plants indoors or cover them with a blanket, sheet, or other covering. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ MSZ004>006-009-014>017-023-024-TNZ004-020>022-052>055-090>092- 221200- /O.NEW.KMEG.FR.Y.0003.210422T0600Z-210422T1200Z/ Tippah-Alcorn-Tishomingo-Prentiss-Union-Pontotoc-Lee MS-Itawamba- Chickasaw-Monroe-Henry-Gibson-Carroll-Benton TN-Madison-Chester- Henderson-Decatur-Hardeman-McNairy-Hardin- Including the cities of Ripley MS, Corinth, Iuka, Booneville, New Albany, Pontotoc, Tupelo, Fulton, Houston, Okolona, Amory, Aberdeen, Paris, Humboldt, Milan, Huntingdon, Camden, Jackson, Henderson, Lexington, Parsons, Decaturville, Bolivar, Selmer, and Savannah 302 AM CDT Wed Apr 21 2021 ...FROST ADVISORY IN EFFECT FROM 1 AM TO 7 AM CDT THURSDAY... * WHAT...Temperatures as low as 36 will result in frost formation. * WHERE...Portions of North Mississippi and West Tennessee. * WHEN...From 1 AM to 7 AM CDT Thursday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. A Frost Advisory means that widespread frost is expected. Sensitive outdoor plants may be killed if left uncovered. && $$
172 WWUS74 KMEG 211404 NPWMEG URGENT - WEATHER MESSAGE National Weather Service Memphis TN 904 AM CDT Wed Apr 21 2021 ARZ009-018-026>028-MOZ113-115-TNZ001-002-019-048-212215- /O.EXP.KMEG.FZ.W.0004.000000T0000Z-210421T1400Z/ /O.EXB.KMEG.FR.Y.0003.210422T0600Z-210422T1400Z/ Clay-Greene-Craighead-Poinsett-Mississippi-Dunklin-Pemiscot-Lake- Obion-Dyer-Lauderdale- Including the cities of Piggott, Corning, Paragould, Jonesboro, Harrisburg, Blytheville, Kennett, Caruthersville, Tiptonville, Union City, Dyersburg, and Ripley TN 904 AM CDT Wed Apr 21 2021 ...FROST ADVISORY IN EFFECT FROM 1 AM TO 9 AM CDT THURSDAY... ...FREEZE WARNING HAS EXPIRED... * WHAT...Temperatures as low as 36 will result in frost formation. * WHERE...Portions of West Tennessee, East Arkansas and Southeast Missouri. * WHEN...From 1 AM to 9 AM CDT Thursday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ TNZ003-212215- /O.EXP.KMEG.FZ.W.0004.000000T0000Z-210421T1400Z/ /O.EXT.KMEG.FR.Y.0003.210422T0600Z-210422T1400Z/ Weakley- Including the cities of Martin and Dresden 904 AM CDT Wed Apr 21 2021 ...FROST ADVISORY NOW IN EFFECT FROM 1 AM TO 9 AM CDT THURSDAY... ...FREEZE WARNING HAS EXPIRED... * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Weakley County. * WHEN...From 1 AM to 9 AM CDT Thursday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ MSZ002-003-013-021-022-TNZ049>051-089-212215- /O.EXB.KMEG.FR.Y.0003.210422T0600Z-210422T1400Z/ Marshall-Benton MS-Lafayette-Yalobusha-Calhoun-Tipton-Haywood- Crockett-Fayette- Including the cities of Holly Springs, Ashland, Oxford, Water Valley, Coffeeville, Bruce, Calhoun City, Covington, Brownsville, Alamo, Somerville, and Oakland 904 AM CDT Wed Apr 21 2021 ...FROST ADVISORY IN EFFECT FROM 1 AM TO 9 AM CDT THURSDAY... * WHAT...Temperatures as low as 35 will result in frost formation. * WHERE...In Mississippi, Marshall, Benton MS, Lafayette, Yalobusha and Calhoun Counties. In Tennessee, Tipton, Haywood, Crockett and Fayette Counties. * WHEN...From 1 AM to 9 AM CDT Thursday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ KRM MSZ004>006-009-014>017-023-024-TNZ004-020>022-052>055-090>092- 212215- /O.EXT.KMEG.FR.Y.0003.210422T0600Z-210422T1400Z/ Tippah-Alcorn-Tishomingo-Prentiss-Union-Pontotoc-Lee MS-Itawamba- Chickasaw-Monroe-Henry-Gibson-Carroll-Benton TN-Madison-Chester- Henderson-Decatur-Hardeman-McNairy-Hardin- Including the cities of Ripley MS, Corinth, Iuka, Booneville, New Albany, Pontotoc, Tupelo, Fulton, Houston, Okolona, Amory, Aberdeen, Paris, Humboldt, Milan, Huntingdon, Camden, Jackson, Henderson, Lexington, Parsons, Decaturville, Bolivar, Selmer, and Savannah 904 AM CDT Wed Apr 21 2021 ...FROST ADVISORY NOW IN EFFECT FROM 1 AM TO 9 AM CDT THURSDAY... * WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...Portions of North Mississippi and West Tennessee. * WHEN...From 1 AM to 9 AM CDT Thursday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
Nearby
Freeze Warnings in Arkansas, 2021Freeze Warnings in Tennessee, 2021Freeze Warnings in Missouri, 2021Every freeze 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.