Alert archive / Mississippi / Excessive Heat Warnings in 2021
Excessive Heat Warning 5, NWS Memphis, TN
NWS Memphis, TN issued this excessive heat warning at Aug 23, 2021, 3:09 AM CDT for Coahoma County, Quitman County, Tallahatchie County, Mississippi; Phillips County, Arkansas. It took effect at Aug 24, 2021, 11:00 AM CDT. It was in force for 9 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
- Aug 23, 2021, 3:09 AM CDT (08:09 UTC)
- In effect from
- Aug 24, 2021, 11:00 AM CDT
- Expired
- Aug 24, 2021, 7:50 PM CDT
- In force
- 9 hr
- Issued by
- NWS Memphis, TN
Counties Phillips County, AR, Coahoma County, MS, Quitman County, MS, Tallahatchie County, MS
The radar
The Memphis radar (KNQA), 137 km from the middle of the area, began a volume at 08:15 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 00:00Z, 8.2 hours before the alert went out and 84 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
- 1843 J/kg
- Mixed-layer CIN
- -32 J/kg
- Mixed-layer LCL
- 1364 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 14 m²/s²
- 0-3 km storm-relative helicity
- 37 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
277 WWUS74 KMEG 230809 NPWMEG URGENT - WEATHER MESSAGE National Weather Service Memphis TN 309 AM CDT Mon Aug 23 2021 ARZ058-MSZ010-011-020-231615- /O.NEW.KMEG.EH.W.0005.210824T1600Z-210825T0100Z/ /O.CON.KMEG.EH.W.0004.210823T1600Z-210824T0100Z/ Phillips-Coahoma-Quitman-Tallahatchie- Including the cities of Helena, West Helena, Clarksdale, Marks, and Charleston 309 AM CDT Mon Aug 23 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM CDT THIS EVENING... ...EXCESSIVE HEAT WARNING IN EFFECT FROM 11 AM TO 8 PM CDT TUESDAY... * WHAT...Dangerously hot conditions with heat index values of 108 to 113 degrees. * WHERE...In Mississippi, Coahoma, Quitman and Tallahatchie Counties. In Arkansas, Phillips County. * WHEN...For the Excessive Heat Warning, from 11 AM this morning to 8 PM CDT this evening. For the Excessive Heat Warning, from 11 AM to 8 PM CDT Tuesday. * IMPACTS...Extreme heat and humidity will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. 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. && $$ ARZ009-018-026>028-035-036-048-049-MOZ113-115-MSZ001-007-008-012- TNZ001-002-019-048-049-088-231615- /O.NEW.KMEG.HT.Y.0014.210824T1600Z-210825T0100Z/ /O.CON.KMEG.HT.Y.0013.210823T1600Z-210824T0100Z/ Clay-Greene-Craighead-Poinsett-Mississippi-Cross-Crittenden- St. Francis-Lee AR-Dunklin-Pemiscot-DeSoto-Tunica-Tate-Panola- Lake-Obion-Dyer-Lauderdale-Tipton-Shelby- Including the cities of Piggott, Corning, Paragould, Jonesboro, Harrisburg, Blytheville, Wynne, West Memphis, Forrest City, Marianna, Kennett, Caruthersville, Southaven, Olive Branch, Tunica, Senatobia, Batesville, Tiptonville, Union City, Dyersburg, Ripley TN, Covington, Bartlett, Germantown, Collierville, Memphis, and Millington 309 AM CDT Mon Aug 23 2021 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM CDT THIS EVENING... ...HEAT ADVISORY IN EFFECT FROM 11 AM TO 8 PM CDT TUESDAY... * WHAT...Heat index values 103 to 108. * WHERE...Portions of North Mississippi, West Tennessee, East Arkansas and Southeast Missouri. * WHEN...For the Heat Advisory, from 11 AM this morning to 8 PM CDT this evening. For the Heat Advisory, from 11 AM to 8 PM CDT Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses to occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. && $$ MSZ021-231615- /O.NEW.KMEG.HT.Y.0014.210824T1600Z-210825T0100Z/ /O.EXA.KMEG.HT.Y.0013.210823T1600Z-210824T0100Z/ Yalobusha- Including the cities of Water Valley and Coffeeville 309 AM CDT Mon Aug 23 2021 ...HEAT ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 8 PM CDT THIS EVENING... ...HEAT ADVISORY IN EFFECT FROM 11 AM TO 8 PM CDT TUESDAY... * WHAT...Heat index values 103 to 108. * WHERE...Yalobusha County. * WHEN...For the Heat Advisory, from 11 AM this morning to 8 PM CDT this evening. For the Heat Advisory, from 11 AM to 8 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. && $$ PWB
7 follow-up statements
714 WWUS74 KMEG 231205 AAA NPWMEG URGENT - WEATHER MESSAGE...UPDATED National Weather Service Memphis TN 705 AM CDT Mon Aug 23 2021 ARZ058-MSZ010-011-020-232100- /O.CON.KMEG.EH.W.0004.210823T1600Z-210824T0100Z/ /O.CON.KMEG.EH.W.0005.210824T1600Z-210825T0100Z/ Phillips-Coahoma-Quitman-Tallahatchie- Including the cities of Helena, West Helena, Clarksdale, Marks, and Charleston 705 AM CDT Mon Aug 23 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM CDT THIS EVENING... ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 11 AM TO 8 PM CDT TUESDAY... * WHAT...Dangerously hot conditions with heat index values of 108 to 113 degrees. * WHERE...In Mississippi, Quitman, Tallahatchie and Coahoma Counties. In Arkansas, Phillips County. * WHEN...For the Excessive Heat Warning, from 11 AM this morning to 8 PM CDT this evening. For the Excessive Heat Warning, from 11 AM to 8 PM CDT Tuesday. * IMPACTS...Extreme heat and humidity will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. && $$ ARZ009-018-026>028-035-036-048-049-MOZ113-115-MSZ001-007-008-012- 021-TNZ001-002-019-048-049-088-232100- /O.CON.KMEG.HT.Y.0013.210823T1600Z-210824T0100Z/ /O.CON.KMEG.HT.Y.0014.210824T1600Z-210825T0100Z/ Clay-Greene-Craighead-Poinsett-Mississippi-Cross-Crittenden- St. Francis-Lee AR-Dunklin-Pemiscot-DeSoto-Tunica-Tate-Panola- Yalobusha-Lake-Obion-Dyer-Lauderdale-Tipton-Shelby- Including the cities of Piggott, Corning, Paragould, Jonesboro, Harrisburg, Blytheville, Wynne, West Memphis, Forrest City, Marianna, Kennett, Caruthersville, Southaven, Olive Branch, Tunica, Senatobia, Batesville, Water Valley, Coffeeville, Tiptonville, Union City, Dyersburg, Ripley TN, Covington, Bartlett, Germantown, Collierville, Memphis, and Millington 705 AM CDT Mon Aug 23 2021 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM CDT THIS EVENING... ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 8 PM CDT TUESDAY... * WHAT...Heat index values 103 to 108. * WHERE...Portions of North Mississippi, West Tennessee, East Arkansas and Southeast Missouri. * WHEN...For the Heat Advisory, from 11 AM this morning to 8 PM CDT this evening. For the Heat Advisory, from 11 AM to 8 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. && $$ PWB
287 WWUS74 KMEG 232010 NPWMEG URGENT - WEATHER MESSAGE National Weather Service Memphis TN 310 PM CDT Mon Aug 23 2021 ARZ058-MSZ010-011-020-240415- /O.CON.KMEG.EH.W.0004.000000T0000Z-210824T0100Z/ /O.CON.KMEG.EH.W.0005.210824T1600Z-210825T0100Z/ Phillips-Coahoma-Quitman-Tallahatchie- Including the cities of Helena, West Helena, Clarksdale, Marks, and Charleston 310 PM CDT Mon Aug 23 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING... ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 11 AM TO 8 PM CDT TUESDAY... * WHAT...Dangerously hot conditions with heat index values of 108 to 113 degrees. * WHERE...In Mississippi, Quitman, Tallahatchie and Coahoma Counties. In Arkansas, Phillips County. * WHEN...Through 8 PM CDT this evening, and again from 11 AM to 8 PM CDT Tuesday. * IMPACTS...Extreme heat and humidity will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ ARZ009-018-026>028-035-036-048-049-MOZ113-115-MSZ001-007-008-012- 021-TNZ001-002-019-048-049-088-240415- /O.CON.KMEG.HT.Y.0013.000000T0000Z-210824T0100Z/ /O.CON.KMEG.HT.Y.0014.210824T1600Z-210825T0100Z/ Clay-Greene-Craighead-Poinsett-Mississippi-Cross-Crittenden- St. Francis-Lee AR-Dunklin-Pemiscot-DeSoto-Tunica-Tate-Panola- Yalobusha-Lake-Obion-Dyer-Lauderdale-Tipton-Shelby- Including the cities of Piggott, Corning, Paragould, Jonesboro, Harrisburg, Blytheville, Wynne, West Memphis, Forrest City, Marianna, Kennett, Caruthersville, Southaven, Olive Branch, Tunica, Senatobia, Batesville, Water Valley, Coffeeville, Tiptonville, Union City, Dyersburg, Ripley TN, Covington, Bartlett, Germantown, Collierville, Memphis, and Millington 310 PM CDT Mon Aug 23 2021 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING... ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 8 PM CDT TUESDAY... * WHAT...Heat index values 103 to 108. * WHERE...Portions of North Mississippi, West Tennessee, East Arkansas and Southeast Missouri. * WHEN...Through 8 PM CDT this evening and again from 11 AM to 8 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. && $$
951 WWUS74 KMEG 240055 NPWMEG URGENT - WEATHER MESSAGE National Weather Service Memphis TN 755 PM CDT Mon Aug 23 2021 ARZ058-MSZ010-011-020-240900- /O.CAN.KMEG.EH.W.0004.000000T0000Z-210824T0100Z/ /O.CON.KMEG.EH.W.0005.210824T1600Z-210825T0100Z/ Phillips-Coahoma-Quitman-Tallahatchie- Including the cities of Helena, West Helena, Clarksdale, Marks, and Charleston 755 PM CDT Mon Aug 23 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 11 AM TO 8 PM CDT TUESDAY... ...THE EXCESSIVE HEAT WARNING FOR TODAY WILL BE ALLOWED TO EXPIRE ON TIME AT 8 PM... * WHAT...Dangerously hot conditions with heat index values of 108 to 113 degrees. * WHERE...In Mississippi, Quitman, Tallahatchie and Coahoma Counties. In Arkansas, Phillips County. * WHEN...From 11 AM to 8 PM CDT Tuesday. * IMPACTS...Extreme heat and humidity will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. && $$ ARZ009-018-026>028-035-036-048-049-MOZ113-115-MSZ001-007-008-012- 021-TNZ001-002-019-048-049-088-240900- /O.CAN.KMEG.HT.Y.0013.000000T0000Z-210824T0100Z/ /O.CON.KMEG.HT.Y.0014.210824T1600Z-210825T0100Z/ Clay-Greene-Craighead-Poinsett-Mississippi-Cross-Crittenden- St. Francis-Lee AR-Dunklin-Pemiscot-DeSoto-Tunica-Tate-Panola- Yalobusha-Lake-Obion-Dyer-Lauderdale-Tipton-Shelby- Including the cities of Piggott, Corning, Paragould, Jonesboro, Harrisburg, Blytheville, Wynne, West Memphis, Forrest City, Marianna, Kennett, Caruthersville, Southaven, Olive Branch, Tunica, Senatobia, Batesville, Water Valley, Coffeeville, Tiptonville, Union City, Dyersburg, Ripley TN, Covington, Bartlett, Germantown, Collierville, Memphis, and Millington 755 PM CDT Mon Aug 23 2021 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 8 PM CDT TUESDAY... ...THE HEAT ADVISORY FOR TODAY WILL BE ALLOWED TO EXPIRE ON TIME AT 8 PM... * WHAT...Heat index values 103 to 108. * WHERE...Portions of North Mississippi, West Tennessee, East Arkansas and Southeast Missouri. * WHEN...From 11 AM to 8 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. && $$
032 WWUS74 KMEG 240133 NPWMEG URGENT - WEATHER MESSAGE National Weather Service Memphis TN 833 PM CDT Mon Aug 23 2021 ARZ058-MSZ010-011-020-241100- /O.CON.KMEG.EH.W.0005.210824T1600Z-210825T0100Z/ Phillips-Coahoma-Quitman-Tallahatchie- Including the cities of Helena, West Helena, Clarksdale, Marks, and Charleston 833 PM CDT Mon Aug 23 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 11 AM TO 8 PM CDT TUESDAY... * WHAT...Dangerously hot conditions with heat index values of 108 to 113 degrees. * WHERE...In Mississippi, Quitman, Tallahatchie and Coahoma Counties. In Arkansas, Phillips County. * WHEN...From 11 AM to 8 PM CDT Tuesday. * IMPACTS...Extreme heat and humidity will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. && $$ ARZ009-018-026>028-035-036-048-049-MOZ113-115-MSZ001-007-008-012- 021-TNZ001-002-019-048-049-088-241100- /O.CON.KMEG.HT.Y.0014.210824T1600Z-210825T0100Z/ Clay-Greene-Craighead-Poinsett-Mississippi-Cross-Crittenden- St. Francis-Lee AR-Dunklin-Pemiscot-DeSoto-Tunica-Tate-Panola- Yalobusha-Lake-Obion-Dyer-Lauderdale-Tipton-Shelby- Including the cities of Piggott, Corning, Paragould, Jonesboro, Harrisburg, Blytheville, Wynne, West Memphis, Forrest City, Marianna, Kennett, Caruthersville, Southaven, Olive Branch, Tunica, Senatobia, Batesville, Water Valley, Coffeeville, Tiptonville, Union City, Dyersburg, Ripley TN, Covington, Bartlett, Germantown, Collierville, Memphis, and Millington 833 PM CDT Mon Aug 23 2021 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 8 PM CDT TUESDAY... * WHAT...Heat index values 103 to 108. * WHERE...Portions of North Mississippi, West Tennessee, East Arkansas and Southeast Missouri. * WHEN...From 11 AM to 8 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. && $$
721 WWUS74 KMEG 240950 NPWMEG URGENT - WEATHER MESSAGE National Weather Service Memphis TN 450 AM CDT Tue Aug 24 2021 ARZ058-MSZ010-011-020-242100- /O.CON.KMEG.EH.W.0005.210824T1600Z-210825T0100Z/ Phillips-Coahoma-Quitman-Tallahatchie- Including the cities of Helena, West Helena, Clarksdale, Marks, and Charleston 450 AM CDT Tue Aug 24 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM CDT THIS EVENING... * WHAT...Dangerously hot conditions with heat index values of 108 to 113 degrees. * WHERE...In Mississippi, Quitman, Tallahatchie and Coahoma Counties. In Arkansas, Phillips County. * WHEN...From 11 AM to 8 PM CDT Tuesday. * IMPACTS...Extreme heat and humidity will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ ARZ009-018-026>028-035-036-048-049-MOZ113-115-MSZ001-007-008-012- 021-TNZ001-002-019-048-049-088-242100- /O.CON.KMEG.HT.Y.0014.210824T1600Z-210825T0100Z/ Clay-Greene-Craighead-Poinsett-Mississippi-Cross-Crittenden- St. Francis-Lee AR-Dunklin-Pemiscot-DeSoto-Tunica-Tate-Panola- Yalobusha-Lake-Obion-Dyer-Lauderdale-Tipton-Shelby- Including the cities of Piggott, Corning, Paragould, Jonesboro, Harrisburg, Blytheville, Wynne, West Memphis, Forrest City, Marianna, Kennett, Caruthersville, Southaven, Olive Branch, Tunica, Senatobia, Batesville, Water Valley, Coffeeville, Tiptonville, Union City, Dyersburg, Ripley TN, Covington, Bartlett, Germantown, Collierville, Memphis, and Millington 450 AM CDT Tue Aug 24 2021 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM CDT THIS EVENING... * WHAT...Heat index values 103 to 108. * WHERE...Portions of North Mississippi, West Tennessee, East Arkansas and Southeast Missouri. * WHEN...From 11 AM to 8 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. && $$
878 WWUS74 KMEG 242007 NPWMEG URGENT - WEATHER MESSAGE National Weather Service Memphis TN 307 PM CDT Tue Aug 24 2021 ARZ058-MSZ010-011-020-250415- /O.NEW.KMEG.HT.Y.0015.210825T1600Z-210826T0100Z/ /O.CON.KMEG.EH.W.0005.000000T0000Z-210825T0100Z/ Phillips-Coahoma-Quitman-Tallahatchie- Including the cities of Helena, West Helena, Clarksdale, Marks, and Charleston 307 PM CDT Tue Aug 24 2021 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING... ...HEAT ADVISORY IN EFFECT FROM 11 AM TO 8 PM CDT WEDNESDAY... * WHAT...For the Excessive Heat Warning, dangerously hot conditions with heat index values up to 111. For the Heat Advisory, heat index values up to 109 expected. * WHERE...In Mississippi, Coahoma, Quitman and Tallahatchie Counties. In Arkansas, Phillips County. * WHEN...The Excessive Heat Warning is in effect through 8 PM CDT this evening. The Heat Advisory is in effect from 11 AM to 8 PM CDT Wednesday. * IMPACTS...Extreme heat and humidity will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ ARZ009-018-026>028-035-036-048-049-MOZ113-115-MSZ001-007-008-012- 021-TNZ001-002-019-048-049-088-250415- /O.NEW.KMEG.HT.Y.0015.210825T1600Z-210826T0100Z/ /O.CON.KMEG.HT.Y.0014.000000T0000Z-210825T0100Z/ Clay-Greene-Craighead-Poinsett-Mississippi-Cross-Crittenden- St. Francis-Lee AR-Dunklin-Pemiscot-DeSoto-Tunica-Tate-Panola- Yalobusha-Lake-Obion-Dyer-Lauderdale-Tipton-Shelby- Including the cities of Piggott, Corning, Paragould, Jonesboro, Harrisburg, Blytheville, Wynne, West Memphis, Forrest City, Marianna, Kennett, Caruthersville, Southaven, Olive Branch, Tunica, Senatobia, Batesville, Water Valley, Coffeeville, Tiptonville, Union City, Dyersburg, Ripley TN, Covington, Bartlett, Germantown, Collierville, Memphis, and Millington 307 PM CDT Tue Aug 24 2021 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING... ...HEAT ADVISORY IN EFFECT FROM 11 AM TO 8 PM CDT WEDNESDAY... * WHAT...Heat index values up to 109 expected. * WHERE...Portions of North Mississippi, West Tennessee, East Arkansas and Southeast Missouri. * WHEN...Through 8 PM CDT this evening, and again from 11 AM to 8 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. && $$
054 WWUS74 KMEG 250050 NPWMEG URGENT - WEATHER MESSAGE National Weather Service Memphis TN 750 PM CDT Tue Aug 24 2021 ARZ058-MSZ010-011-020-250900- /O.CAN.KMEG.EH.W.0005.000000T0000Z-210825T0100Z/ /O.CON.KMEG.HT.Y.0015.210825T1600Z-210826T0100Z/ Phillips-Coahoma-Quitman-Tallahatchie- Including the cities of Helena, West Helena, Clarksdale, Marks, and Charleston 750 PM CDT Tue Aug 24 2021 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 8 PM CDT WEDNESDAY... ...THE EXCESSIVE HEAT WARNING FOR TODAY WILL BE ALLOWED TO EXPIRE ON TIME AT 8 PM... * WHAT...For the Excessive Heat Warning, dangerously hot conditions with heat index values up to 111. For the Heat Advisory, heat index values up to 109 expected. * WHERE...In Mississippi, Quitman, Tallahatchie and Coahoma Counties. In Arkansas, Phillips County. * WHEN...From 11 AM to 8 PM CDT Wednesday. * IMPACTS...Extreme heat and humidity will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. && $$ ARZ009-018-026>028-035-036-048-049-MOZ113-115-MSZ001-007-008-012- 021-TNZ001-002-019-048-049-088-250900- /O.CAN.KMEG.HT.Y.0014.000000T0000Z-210825T0100Z/ /O.CON.KMEG.HT.Y.0015.210825T1600Z-210826T0100Z/ Clay-Greene-Craighead-Poinsett-Mississippi-Cross-Crittenden- St. Francis-Lee AR-Dunklin-Pemiscot-DeSoto-Tunica-Tate-Panola- Yalobusha-Lake-Obion-Dyer-Lauderdale-Tipton-Shelby- Including the cities of Piggott, Corning, Paragould, Jonesboro, Harrisburg, Blytheville, Wynne, West Memphis, Forrest City, Marianna, Kennett, Caruthersville, Southaven, Olive Branch, Tunica, Senatobia, Batesville, Water Valley, Coffeeville, Tiptonville, Union City, Dyersburg, Ripley TN, Covington, Bartlett, Germantown, Collierville, Memphis, and Millington 750 PM CDT Tue Aug 24 2021 ...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 8 PM CDT WEDNESDAY... ...THE HEAT ADVISORY FOR TODAY WILL BE ALLOWED TO EXPIRE ON TIME AT 8 PM... * WHAT...Heat index values up to 109 expected. * WHERE...Portions of North Mississippi, West Tennessee, East Arkansas and Southeast Missouri. * WHEN...From 11 AM to 8 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. && $$
What forecasters said that day
The local office's own words before this excessive heat warning 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 excessive heat warning went out at Aug 23, 12:25 AM CDT, 2 hours 44 minutes earlier.
Area forecast discussion, Aug 23, 12:25 AM CDT, 2 hours 44 minutes before
Area Forecast Discussion
National Weather Service Memphis TN
1225 AM CDT Mon Aug 23 2021
.UPDATE...
06Z Aviation Update Below
&&
.PREV DISCUSSION... /issued 750 PM CDT Sun Aug 22 2021/
UPDATE...Evening Update and Aviation Discussion.
DISCUSSION...
Updated to remove the Heat Advisory for this evening. A heat
advisory and Excessive heat warning has been issued for portions
of the Midsouth tomorrow and will likely be needed through at
least Wednesday.
PREV DISCUSSION... /issued 338 PM CDT Sun Aug 22 2021/
DISCUSSION...
Hot and mostly dry conditions will should be expected over the
first half of the week. A few showers and storms will be possible
Monday along and west of the Mississippi River. A Heat Advisory
and Excessive Heat Warning has been issued for portions of the
forecast area for Monday. We expect heat indices to be in the 105
to 112 range over the advised/warned areas. Expect the trend of
the heat advisory to continue through at least Wednesday as the
upper ridge maintains its hold over the region. As we get later
into the week...the ridge starts to weaken some and rain chances
increase and temperatures will moderate. Expect daily rain chances
of 20 to 30 percent to be the rule. Also an easterly wave is
expected to move across the southeast to help enhance POPs in the
latter half of the week going into the weekend. All in all a
typical summertime pattern is expected for the Mid South.
&&
.AVIATION...
06Z TAF
Mostly VFR conditions expected through the TAF cycle. Some MVFR
conditions possible with fog development at MKL, JBR and TUP. Wind
will be light and variable.
SMW
&&
.MEG WATCHES/WARNINGS/ADVISORIES...
AR...Excessive Heat Warning from 11 AM this morning to 8 PM CDT this
evening for Phillips.
Heat Advisory from 11 AM this morning to 8 PM CDT this evening
for Clay-Craighead-Crittenden-Cross-Greene-Lee AR-
Mississippi-Poinsett-St. Francis.
MO...Heat Advisory from 11 AM this morning to 8 PM CDT this evening
for Dunklin-Pemiscot.
MS...Excessive Heat Warning from 11 AM this morning to 8 PM CDT this
evening for Coahoma-Quitman-Tallahatchie.
Heat Advisory from 11 AM this morning to 8 PM CDT this evening
for DeSoto-Panola-Tate-Tunica.
TN...Heat Advisory from 11 AM this morning to 8 PM CDT this evening
for Dyer-Lake-Lauderdale-Obion-Shelby-Tipton.
&&Hazardous weather outlook, Aug 22, 7:50 PM CDT, 7 hours 19 minutes before
Hazardous Weather Outlook National Weather Service Memphis TN 750 PM CDT Sun Aug 22 2021 ARZ009-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001>017- 020>024-TNZ001>004-019>022-048>055-088>092-240300- 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- 750 PM CDT Sun Aug 22 2021 This hazardous weather outlook is for portions of East Arkansas... the Missouri Bootheel...North Mississippi...and West Tennessee. .DAY ONE...Tonight The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Monday through Saturday Hot and humid conditions will prevail across much of the Mid- South Monday through Wednesday. Heat index values are forecast to reach or exceed 105 degrees in many areas. Heat Advisories will likely be needed during this period. .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 |
|---|---|---|---|---|
| Aug 23, 3:09 AM CDT | Heat Advisory | MEG | DeSoto, Panola, Tate, Tunica, Yalobusha | 41 hr |
Nearby
Excessive Heat Warnings in Mississippi, 2021Excessive Heat Warnings in Arkansas, 2021Every excessive heat 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.