Alert archive / Mississippi / Heat Advisories in 2021
Heat Advisory 4, NWS Memphis, TN
NWS Memphis, TN issued this heat advisory at Jul 26, 2021, 2:36 PM CDT for 4 states. It took effect at Jul 27, 2021, 10:00 AM CDT. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Jul 26, 2021, 2:36 PM CDT (19:36 UTC)
- In effect from
- Jul 27, 2021, 10:00 AM CDT
- Expired
- Jul 27, 2021, 7:00 PM CDT
- In force
- 9 hr
- Issued by
- NWS Memphis, TN
All 46 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, Chester County, TN, Crockett County, TN, Dyer County, TN, Fayette County, TN, Hardeman County, TN, Hardin County, TN, Haywood County, TN, Lauderdale County, TN, Madison County, TN, McNairy County, TN, Shelby County, TN, Tipton County, TN
The radar
The Memphis radar (KNQA), 48 km from the middle of the area, began a volume at 19:35 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, 7.6 hours before the alert went out and 38 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
- 2259 J/kg
- Mixed-layer CIN
- -36 J/kg
- Mixed-layer LCL
- 1008 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 1 m²/s²
- 0-3 km storm-relative helicity
- -8 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
532 WWUS74 KMEG 261936 NPWMEG URGENT - WEATHER MESSAGE National Weather Service Memphis TN 236 PM CDT Mon Jul 26 2021 ARZ026>028-035-036-048-049-058-MSZ001-007-008-010>012-020-021- TNZ048-049-088-270745- /O.NEW.KMEG.HT.Y.0004.210727T1500Z-210728T0000Z/ /O.CON.KMEG.HT.Y.0003.000000T0000Z-210727T0000Z/ Craighead-Poinsett-Mississippi-Cross-Crittenden-St. Francis- Lee AR-Phillips-DeSoto-Tunica-Tate-Coahoma-Quitman-Panola- Tallahatchie-Yalobusha-Lauderdale-Tipton-Shelby- Including the cities of Jonesboro, Harrisburg, Blytheville, Wynne, West Memphis, Forrest City, Marianna, Helena, West Helena, Southaven, Olive Branch, Tunica, Senatobia, Clarksdale, Marks, Batesville, Charleston, Water Valley, Coffeeville, Ripley TN, Covington, Bartlett, Germantown, Collierville, Memphis, and Millington 236 PM CDT Mon Jul 26 2021 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... ...HEAT ADVISORY IN EFFECT FROM 10 AM TO 7 PM CDT TUESDAY... * WHAT...For the first Heat Advisory, heat index values up to 107. For the second Heat Advisory, heat index values up to 107 expected. * WHERE...Portions of North Mississippi, West Tennessee and East Arkansas. * WHEN...For the Heat Advisory, until 7 PM CDT this evening. For the Heat Advisory, from 10 AM to 7 PM CDT Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses to occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ MSZ002>006-009-013>017-022>024-TNZ050-089-270000- /O.CON.KMEG.HT.Y.0003.000000T0000Z-210727T0000Z/ Marshall-Benton MS-Tippah-Alcorn-Tishomingo-Prentiss-Lafayette- Union-Pontotoc-Lee MS-Itawamba-Calhoun-Chickasaw-Monroe-Haywood- Fayette- Including the cities of Holly Springs, Ashland, Ripley MS, Corinth, Iuka, Booneville, Oxford, New Albany, Pontotoc, Tupelo, Fulton, Bruce, Calhoun City, Houston, Okolona, Amory, Aberdeen, Brownsville, Somerville, and Oakland 236 PM CDT Mon Jul 26 2021 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * WHAT...Heat index values up to 107 expected. * WHERE...Portions of North Mississippi. * WHEN...From 10 AM to 7 PM CDT Monday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses to occur. * ADDITIONAL DETAILS... PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$
7 follow-up statements
588 WWUS74 KMEG 270028 NPWMEG URGENT - WEATHER MESSAGE National Weather Service Memphis TN 728 PM CDT Mon Jul 26 2021 ARZ026>028-035-036-048-049-058-MSZ001-007-008-010>012-020-021- TNZ048-049-088-271200- /O.EXP.KMEG.HT.Y.0003.000000T0000Z-210727T0000Z/ /O.CON.KMEG.HT.Y.0004.210727T1500Z-210728T0000Z/ Craighead-Poinsett-Mississippi-Cross-Crittenden-St. Francis- Lee AR-Phillips-DeSoto-Tunica-Tate-Coahoma-Quitman-Panola- Tallahatchie-Yalobusha-Lauderdale-Tipton-Shelby- Including the cities of Jonesboro, Harrisburg, Blytheville, Wynne, West Memphis, Forrest City, Marianna, Helena, West Helena, Southaven, Olive Branch, Tunica, Senatobia, Clarksdale, Marks, Batesville, Charleston, Water Valley, Coffeeville, Ripley TN, Covington, Bartlett, Germantown, Collierville, Memphis, and Millington 728 PM CDT Mon Jul 26 2021 ...HEAT ADVISORY IN EFFECT FROM 10 AM TO 7 PM CDT TUESDAY... * WHAT...Heat index values up to 108 expected. * WHERE...Portions of North Mississippi, West Tennessee and East Arkansas. * WHEN...From 10 AM to 7 PM CDT Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses to occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ MSZ002>006-009-013>017-022>024-TNZ050-089-270130- /O.EXP.KMEG.HT.Y.0003.000000T0000Z-210727T0000Z/ Marshall-Benton MS-Tippah-Alcorn-Tishomingo-Prentiss-Lafayette- Union-Pontotoc-Lee MS-Itawamba-Calhoun-Chickasaw-Monroe-Haywood- Fayette- Including the cities of Holly Springs, Ashland, Ripley MS, Corinth, Iuka, Booneville, Oxford, New Albany, Pontotoc, Tupelo, Fulton, Bruce, Calhoun City, Houston, Okolona, Amory, Aberdeen, Brownsville, Somerville, and Oakland 728 PM CDT Mon Jul 26 2021 ...HEAT ADVISORY HAS EXPIRED... Heat indices are not expected to reach advisory criteria, therefore the heat advisory has been allowed to expire.. $$
411 WWUS74 KMEG 270849 NPWMEG URGENT - WEATHER MESSAGE National Weather Service Memphis TN 349 AM CDT Tue Jul 27 2021 MSZ002>006-009-013>017-022>024-TNZ050-089-090-271700- /O.EXA.KMEG.HT.Y.0004.210727T1500Z-210728T0000Z/ Marshall-Benton MS-Tippah-Alcorn-Tishomingo-Prentiss-Lafayette- Union-Pontotoc-Lee MS-Itawamba-Calhoun-Chickasaw-Monroe-Haywood- Fayette-Hardeman- Including the cities of Holly Springs, Ashland, Ripley MS, Corinth, Iuka, Booneville, Oxford, New Albany, Pontotoc, Tupelo, Fulton, Bruce, Calhoun City, Houston, Okolona, Amory, Aberdeen, Brownsville, Somerville, Oakland, and Bolivar 349 AM CDT Tue Jul 27 2021 ...HEAT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 7 PM CDT THIS EVENING... * WHAT...Heat index values up to 108 expected. * WHERE...Portions of North Mississippi and West Tennessee. * WHEN...From 10 AM to 7 PM CDT Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses to occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ ARZ026>028-035-036-048-049-058-MSZ001-007-008-010>012-020-021- TNZ048-049-088-271700- /O.CON.KMEG.HT.Y.0004.210727T1500Z-210728T0000Z/ Craighead-Poinsett-Mississippi-Cross-Crittenden-St. Francis- Lee AR-Phillips-DeSoto-Tunica-Tate-Coahoma-Quitman-Panola- Tallahatchie-Yalobusha-Lauderdale-Tipton-Shelby- Including the cities of Jonesboro, Harrisburg, Blytheville, Wynne, West Memphis, Forrest City, Marianna, Helena, West Helena, Southaven, Olive Branch, Tunica, Senatobia, Clarksdale, Marks, Batesville, Charleston, Water Valley, Coffeeville, Ripley TN, Covington, Bartlett, Germantown, Collierville, Memphis, and Millington 349 AM CDT Tue Jul 27 2021 ...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 7 PM CDT THIS EVENING... * WHAT...Heat index values up to 108 expected. * WHERE...Portions of North Mississippi, West Tennessee and East Arkansas. * WHEN...From 10 AM to 7 PM CDT Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses to occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$
311 WWUS74 KMEG 270954 AAA NPWMEG URGENT - WEATHER MESSAGE...UPDATED National Weather Service Memphis TN 454 AM CDT Tue Jul 27 2021 ARZ026>028-035-036-048-049-058-MSZ001>017-020>024-TNZ048>050- 088>090-280000- /O.CON.KMEG.HT.Y.0004.210727T1500Z-210728T0000Z/ Craighead-Poinsett-Mississippi-Cross-Crittenden-St. Francis- Lee AR-Phillips-DeSoto-Marshall-Benton MS-Tippah-Alcorn- Tishomingo-Tunica-Tate-Prentiss-Coahoma-Quitman-Panola-Lafayette- Union-Pontotoc-Lee MS-Itawamba-Tallahatchie-Yalobusha-Calhoun- Chickasaw-Monroe-Lauderdale-Tipton-Haywood-Shelby-Fayette- Hardeman- Including the cities of Jonesboro, Harrisburg, Blytheville, Wynne, West Memphis, Forrest City, Marianna, Helena, West Helena, 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, Ripley TN, Covington, Brownsville, Bartlett, Germantown, Collierville, Memphis, Millington, Somerville, Oakland, and Bolivar 454 AM CDT Tue Jul 27 2021 ...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 7 PM CDT THIS EVENING... * WHAT...Heat index values up to 108 expected. * WHERE...Portions of North Mississippi, West Tennessee and East Arkansas. * WHEN...From 10 AM to 7 PM CDT Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses to occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$
499 WWUS74 KMEG 271658 NPWMEG URGENT - WEATHER MESSAGE National Weather Service Memphis TN 1158 AM CDT Tue Jul 27 2021 ARZ009-018-MOZ113-115-TNZ019-051>053-091-092-280000- /O.EXA.KMEG.HT.Y.0004.000000T0000Z-210728T0000Z/ Clay-Greene-Dunklin-Pemiscot-Dyer-Crockett-Madison-Chester- McNairy-Hardin- Including the cities of Piggott, Corning, Paragould, Kennett, Caruthersville, Dyersburg, Alamo, Jackson, Henderson, Selmer, and Savannah 1158 AM CDT Tue Jul 27 2021 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING... * WHAT...Heat index values up to 109 expected. * WHERE...In Tennessee, Dyer, Crockett, Madison, Chester, McNairy and Hardin Counties. In Arkansas, Clay and Greene Counties. In Missouri, Dunklin and Pemiscot Counties. * WHEN...Until 7 PM CDT Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses to occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ ARZ026>028-035-036-048-049-058-MSZ001>017-020>024-TNZ048>050- 088>090-280000- /O.CON.KMEG.HT.Y.0004.000000T0000Z-210728T0000Z/ Craighead-Poinsett-Mississippi-Cross-Crittenden-St. Francis- Lee AR-Phillips-DeSoto-Marshall-Benton MS-Tippah-Alcorn- Tishomingo-Tunica-Tate-Prentiss-Coahoma-Quitman-Panola-Lafayette- Union-Pontotoc-Lee MS-Itawamba-Tallahatchie-Yalobusha-Calhoun- Chickasaw-Monroe-Lauderdale-Tipton-Haywood-Shelby-Fayette- Hardeman- Including the cities of Jonesboro, Harrisburg, Blytheville, Wynne, West Memphis, Forrest City, Marianna, Helena, West Helena, 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, Ripley TN, Covington, Brownsville, Bartlett, Germantown, Collierville, Memphis, Millington, Somerville, Oakland, and Bolivar 1158 AM CDT Tue Jul 27 2021 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * WHAT...Heat index values up to 108 expected. * WHERE...Portions of North Mississippi, West Tennessee and East Arkansas. * WHEN...Until 7 PM CDT Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses to occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$
834 WWUS74 KMEG 271937 NPWMEG URGENT - WEATHER MESSAGE National Weather Service Memphis TN 237 PM CDT Tue Jul 27 2021 ARZ009-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001>017- 020>024-TNZ019-048>053-088>092-280000- /O.CON.KMEG.HT.Y.0004.000000T0000Z-210728T0000Z/ 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-Dyer-Lauderdale- Tipton-Haywood-Crockett-Madison-Chester-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, Dyersburg, Ripley TN, Covington, Brownsville, Alamo, Jackson, Henderson, Bartlett, Germantown, Collierville, Memphis, Millington, Somerville, Oakland, Bolivar, Selmer, and Savannah 237 PM CDT Tue Jul 27 2021 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * WHAT...Heat index values up to 108 expected. * WHERE...Portions of North Mississippi, West Tennessee and East Arkansas. * WHEN...Until 7 PM CDT Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses to occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$
230 WWUS74 KMEG 271949 NPWMEG URGENT - WEATHER MESSAGE National Weather Service Memphis TN 249 PM CDT Tue Jul 27 2021 ARZ058-MSZ010-011-020>024-280415- /O.NEW.KMEG.HT.Y.0005.210728T1500Z-210729T0000Z/ /O.CON.KMEG.HT.Y.0004.000000T0000Z-210728T0000Z/ Phillips-Coahoma-Quitman-Tallahatchie-Yalobusha-Calhoun-Chickasaw- Monroe- Including the cities of Helena, West Helena, Clarksdale, Marks, Charleston, Water Valley, Coffeeville, Bruce, Calhoun City, Houston, Okolona, Amory, and Aberdeen 249 PM CDT Tue Jul 27 2021 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... ...HEAT ADVISORY IN EFFECT FROM 10 AM TO 7 PM CDT WEDNESDAY... * WHAT...For the first Heat Advisory, heat index values up to 109. For the second Heat Advisory, heat index values up to 109 expected. * WHERE...In Mississippi, Coahoma, Quitman, Tallahatchie, Yalobusha, Calhoun, Chickasaw and Monroe Counties. In Arkansas, Phillips County. * WHEN...For the first Heat Advisory, until 7 PM CDT this evening. For tomorrow's Heat Advisory, from 10 AM to 7 PM CDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses to occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ ARZ009-018-026>028-035-036-048-049-MOZ113-115-MSZ001>009-012>017- TNZ019-048>053-088>092-280000- /O.CON.KMEG.HT.Y.0004.000000T0000Z-210728T0000Z/ Clay-Greene-Craighead-Poinsett-Mississippi-Cross-Crittenden- St. Francis-Lee AR-Dunklin-Pemiscot-DeSoto-Marshall-Benton MS- Tippah-Alcorn-Tishomingo-Tunica-Tate-Prentiss-Panola-Lafayette- Union-Pontotoc-Lee MS-Itawamba-Dyer-Lauderdale-Tipton-Haywood- Crockett-Madison-Chester-Shelby-Fayette-Hardeman-McNairy-Hardin- Including the cities of Piggott, Corning, Paragould, Jonesboro, Harrisburg, Blytheville, Wynne, West Memphis, Forrest City, Marianna, Kennett, Caruthersville, Southaven, Olive Branch, Holly Springs, Ashland, Ripley MS, Corinth, Iuka, Tunica, Senatobia, Booneville, Batesville, Oxford, New Albany, Pontotoc, Tupelo, Fulton, Dyersburg, Ripley TN, Covington, Brownsville, Alamo, Jackson, Henderson, Bartlett, Germantown, Collierville, Memphis, Millington, Somerville, Oakland, Bolivar, Selmer, and Savannah 249 PM CDT Tue Jul 27 2021 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * WHAT...Heat index values up to 109 expected. * WHERE...Portions of North Mississippi, West Tennessee and East Arkansas. * WHEN...Until 7 PM CDT Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses to occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$
097 WWUS74 KMEG 280017 NPWMEG URGENT - WEATHER MESSAGE National Weather Service Memphis TN 717 PM CDT Tue Jul 27 2021 ARZ058-MSZ010-011-020>024-280830- /O.EXP.KMEG.HT.Y.0004.000000T0000Z-210728T0000Z/ /O.CON.KMEG.HT.Y.0005.210728T1500Z-210729T0000Z/ Phillips-Coahoma-Quitman-Tallahatchie-Yalobusha-Calhoun-Chickasaw- Monroe- Including the cities of Helena, West Helena, Clarksdale, Marks, Charleston, Water Valley, Coffeeville, Bruce, Calhoun City, Houston, Okolona, Amory, and Aberdeen 717 PM CDT Tue Jul 27 2021 ...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM TO 7 PM CDT WEDNESDAY... ...HEAT ADVISORY HAS EXPIRED... * WHAT...Heat index values up to 109 expected. * WHERE...In Mississippi, Coahoma, Quitman, Tallahatchie, Yalobusha, Calhoun, Chickasaw and Monroe Counties. In Arkansas, Phillips County. * WHEN...From 10 AM to 7 PM CDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses to occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ ARZ009-018-026>028-035-036-048-049-MOZ113-115-MSZ001>009-012>017- TNZ019-048>053-088>092-280130- /O.EXP.KMEG.HT.Y.0004.000000T0000Z-210728T0000Z/ Clay-Greene-Craighead-Poinsett-Mississippi-Cross-Crittenden- St. Francis-Lee AR-Dunklin-Pemiscot-DeSoto-Marshall-Benton MS- Tippah-Alcorn-Tishomingo-Tunica-Tate-Prentiss-Panola-Lafayette- Union-Pontotoc-Lee MS-Itawamba-Dyer-Lauderdale-Tipton-Haywood- Crockett-Madison-Chester-Shelby-Fayette-Hardeman-McNairy-Hardin- Including the cities of Piggott, Corning, Paragould, Jonesboro, Harrisburg, Blytheville, Wynne, West Memphis, Forrest City, Marianna, Kennett, Caruthersville, Southaven, Olive Branch, Holly Springs, Ashland, Ripley MS, Corinth, Iuka, Tunica, Senatobia, Booneville, Batesville, Oxford, New Albany, Pontotoc, Tupelo, Fulton, Dyersburg, Ripley TN, Covington, Brownsville, Alamo, Jackson, Henderson, Bartlett, Germantown, Collierville, Memphis, Millington, Somerville, Oakland, Bolivar, Selmer, and Savannah 717 PM CDT Tue Jul 27 2021 ...HEAT ADVISORY HAS EXPIRED... Heat indices are not expected to reach advisory criteria, therefore the heat advisory has been allowed to expire. $$
What forecasters said that day
The local office's own words before this heat advisory 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 heat advisory went out at Jul 26, 1:12 PM CDT, 1 hour 24 minutes earlier.
Area forecast discussion, Jul 26, 1:12 PM CDT, 1 hour 24 minutes before
Area Forecast Discussion
National Weather Service Memphis TN
112 PM CDT Mon Jul 26 2021
.UPDATE...
Updated for 18z Aviation Discussion
&&
.PREV DISCUSSION... /issued 412 AM CDT Mon Jul 26 2021/
DISCUSSION...
Presently, temperatures are into the mid 70s with patchy fog along
the Tennessee River. Scattered showers and thunderstorms are in a
few spots in west Tennessee and far north Mississippi. There is heat
advisory for portions of West Tennessee, Eastern Arkansas and North
Mississippi from 10am to 7pm. A weak cold front will begin to push
through the area this afternoon bringing more numerous showers and
thunderstorms with it. The cold front should move out of the area by
Tuesday evening.
It should be dry in the morning for Wednesday. Typical hot and humid
conditions for Wednesday afternoon into the evening. The ridge that
is parked over the Rockies shifts slightly eastward putting us
directly under a mid-level high pressure. This means dry weather for
Thursday and first half of Friday. By the end of the week the ridge
retrogrades slightly and builds up into the Canadian Rockies. A
trough is digging in over the Great Lakes putting us back on the
periphery of both the ridge/trough. So for the latter half of Friday
it will be hot and humid with diurnal showers and storms.
For the weekend, as the great poet Smash Mouth once said, "We might
as well be walkin' on the sun." It will be hot and humid with
temperatures in the mid to upper 90s with heat indices 105F and
possibly higher so a heat advisory may once again be needed for the
weekend. Diurnal showers and thunderstorms also continue.
SMW
&&
.AVIATION... /18z TAFs/
Showers and thunderstorms have already started to develop in the
vicinity of a weak front this afternoon. Scattered storms will
continue through the early evening hours. Coverage is likely to
be a bit greater than yesterday so VCTS was carried at all sites
through the afternoon. Fog will be possible tonight, mainly south
of I-40 and east of I-55.
17
&&
.MEG WATCHES/WARNINGS/ADVISORIES...
AR...Heat Advisory until 7 PM CDT this evening for Craighead-
Crittenden-Cross-Lee AR-Mississippi-Phillips-Poinsett-St.
Francis.
MO...None.
MS...Heat Advisory until 7 PM CDT this evening for Alcorn-Benton MS-
Calhoun-Chickasaw-Coahoma-DeSoto-Itawamba-Lafayette-Lee MS-
Marshall-Monroe-Panola-Pontotoc-Prentiss-Quitman-
Tallahatchie-Tate-Tippah-Tishomingo-Tunica-Union-Yalobusha.
TN...Heat Advisory until 7 PM CDT this evening for Fayette-Haywood-
Lauderdale-Shelby-Tipton.
&&Hazardous weather outlook, Jul 26, 4:14 AM CDT, 10 hours 22 minutes before
Hazardous Weather Outlook National Weather Service Memphis TN 414 AM CDT Mon Jul 26 2021 ARZ009-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001>017- 020>024-TNZ001>004-019>022-048>055-088>092-271115- Alcorn-Benton MS-Benton TN-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 AR-Lee MS- 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- 414 AM CDT Mon Jul 26 2021 This hazardous weather outlook is for portions of East Arkansas... the Missouri Bootheel...North Mississippi...and West Tennessee. .DAY ONE...Today and Tonight A Heat Advisory is in effect from 10 AM to 7 PM for portions of North Mississippi, West Tennessee, and East Arkansas. Heat index values up to 107 this afternoon. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday Hot and humid conditions will stretch through the week, with heat index values in the triple digits. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated at this time.
The office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 26, 3:45 PM CDT | Special Weather Statement | MEG | Alcorn | 30 min |
| Jul 26, 3:59 PM CDT | Areal Flood Advisory | MEG | Alcorn | 2 hr |
| Jul 26, 2:12 AM CDT | Areal Flood Advisory | MEG | Carroll, Gibson | 2 hr |
| Jul 26, 5:05 PM CDT | Special Weather Statement | MEG | Crockett | 25 min |
| Jul 26, 5:50 PM CDT | Special Weather Statement | MEG | Fayette | 25 min |
Nearby
Heat Advisories in Mississippi, 2021Heat Advisories in Tennessee, 2021Heat Advisories in Arkansas, 2021Every heat 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.