Alert archive / Mississippi / Heat Advisories in 2021

Heat Advisory 5, NWS Mobile, AL

July 30, 2021Wayne County, Mississippi

NWS Mobile, AL issued this heat advisory at Jul 30, 2021, 4:39 AM CDT for Wayne County, Mississippi. It took effect at Jul 30, 2021, 7:00 PM CDT. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued
Jul 30, 2021, 4:39 AM CDT (09:39 UTC)
In effect from
Jul 30, 2021, 7:00 PM CDT
Expired
Jul 31, 2021, 10:00 AM CDT
In force
15 hr
Issued by
NWS Mobile, AL

County Wayne County, MS

The radar

The Mobile radar (KMOB), 115 km from the middle of the area, began a volume at 09:40 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

Jackson, MS (KJAN), launched 00:00Z, 9.7 hours before the alert went out and 151 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, Jackson, MS at 00:00Z on 2021-07-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2233 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jackson, MS at 00:00Z on 2021-07-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 14 square meters per square second.1939Sfc1 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
2233 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
1403 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
14 m²/s²
0-3 km storm-relative helicity
-10 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

941 
WWUS74 KMOB 300939
NPWMOB

URGENT - WEATHER MESSAGE
National Weather Service Mobile AL
439 AM CDT Fri Jul 30 2021

MSZ075-078-301745-
/O.UPG.KMOB.EH.A.0002.210731T0000Z-210801T0000Z/
/O.NEW.KMOB.EH.W.0002.210731T1500Z-210801T0000Z/
/O.EXB.KMOB.HT.Y.0003.210731T0000Z-210731T1500Z/
/O.CON.KMOB.EH.W.0001.210730T1500Z-210731T0000Z/
/O.CON.KMOB.HT.Y.0004.000000T0000Z-210730T1500Z/
Perry-Stone-
Including the cities of Beaumont, New Augusta, Richton, 
and Wiggins
439 AM CDT Fri Jul 30 2021

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT THIS MORNING...
...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM THIS
MORNING TO 7 PM CDT THIS EVENING...
...HEAT ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 10 AM CDT
SATURDAY...
...EXCESSIVE HEAT WARNING IN EFFECT FROM 10 AM TO 7 PM CDT
SATURDAY...

* WHAT...For the Excessive Heat Warning, dangerously hot
  conditions with heat index values up to 114 expected. For the
  Heat Advisory, heat index values up to 110 expected. 

* WHERE...Perry and Stone Counties.

* WHEN...For the first Excessive Heat Warning, from 10 AM this 
  morning to 7 PM CDT this evening. For the second Excessive 
  Heat Warning, from 10 AM to 7 PM CDT Saturday. For the first 
  Heat Advisory, until 10 AM CDT this morning. For the second 
  Heat Advisory, from 7 PM this evening to 10 AM CDT Saturday.

* 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.

&&

$$

ALZ052-261>266-FLZ201>206-MSZ076-079-301745-
/O.UPG.KMOB.EH.A.0002.210731T0000Z-210801T0000Z/
/O.NEW.KMOB.EH.W.0002.210731T1500Z-210801T0000Z/
/O.EXB.KMOB.HT.Y.0003.210731T0000Z-210731T1500Z/
/O.CON.KMOB.EH.W.0001.210730T1500Z-210731T0000Z/
/O.CON.KMOB.HT.Y.0002.000000T0000Z-210730T1500Z/
Washington-Mobile Inland-Baldwin Inland-Mobile Central-
Baldwin Central-Mobile Coastal-Baldwin Coastal-Escambia Inland-
Escambia Coastal-Santa Rosa Inland-Santa Rosa Coastal-
Okaloosa Inland-Okaloosa Coastal-Greene-George-
Including the cities of Chatom, Millry, Citronelle, Saraland, 
Stockton, Mobile, Prichard, Theodore, Bay Minette, Daphne, 
Fairhope, Foley, Spanish Fort, Bayou La Batre, Dauphin Island, 
Grand Bay, Fort Morgan, Gulf Shores, Orange Beach, Century, 
Molino, Walnut Hill, Beulah, Ensley, Fort Pickens, Pensacola, 
Pensacola Beach, Perdido Bay, Jay, Milton, Bagdad, Gulf Breeze, 
Navarre, Crestview, Destin, Eglin AFB, Fort Walton Beach, 
Niceville, Seminole, Valparaiso, Wright, Leakesville, McLain, 
and Lucedale
439 AM CDT Fri Jul 30 2021

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT THIS MORNING...
...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM THIS
MORNING TO 7 PM CDT THIS EVENING...
...HEAT ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 10 AM CDT
SATURDAY...
...EXCESSIVE HEAT WARNING IN EFFECT FROM 10 AM TO 7 PM CDT
SATURDAY...

* WHAT...For the Excessive Heat Warning, dangerously hot
  conditions with heat index values up to 114 expected. For the
  Heat Advisory, heat index values up to 110 expected.
 
* WHERE...Portions of southwest Alabama, northwest Florida and 
  southeast Mississippi.

* WHEN...For the first Excessive Heat Warning, from 10 AM this 
  morning to 7 PM CDT this evening. For the second Excessive 
  Heat Warning, from 10 AM to 7 PM CDT Saturday. For the first 
  Heat Advisory, until 10 AM CDT this morning. For the second 
  Heat Advisory, from 7 PM this evening to 10 AM CDT Saturday.

* 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.

&&

$$

MSZ067-301745-
/O.NEW.KMOB.EH.W.0002.210731T1500Z-210801T0000Z/
/O.NEW.KMOB.HT.Y.0005.210731T0000Z-210731T1500Z/
/O.EXA.KMOB.EH.W.0001.210730T1500Z-210731T0000Z/
/O.EXT.KMOB.HT.Y.0003.000000T0000Z-210730T1500Z/
Wayne-
Including the city of Waynesboro
439 AM CDT Fri Jul 30 2021

...HEAT ADVISORY NOW IN EFFECT UNTIL 10 AM CDT THIS MORNING...
...EXCESSIVE HEAT WARNING IN EFFECT FROM 10 AM THIS MORNING TO
7 PM CDT THIS EVENING...
...HEAT ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 10 AM CDT
SATURDAY...
...EXCESSIVE HEAT WARNING IN EFFECT FROM 10 AM TO 7 PM CDT
SATURDAY...

* WHAT...For the Excessive Heat Warning, dangerously hot
  conditions with heat index values up to 114 expected. For the
  Heat Advisory, heat index values up to 110 expected. 

* WHERE...Wayne County.

* WHEN...For the first Excessive Heat Warning, from 10 AM this 
  morning to 7 PM CDT this evening. For the second Excessive 
  Heat Warning, from 10 AM to 7 PM CDT Saturday. For the first 
  Heat Advisory, from 7 PM this evening to 10 AM CDT Saturday. 
  For the second Heat Advisory, until 10 AM CDT this morning.

* 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.

&&

$$

ALZ051-053>060-301745-
/O.CON.KMOB.HT.Y.0003.000000T0000Z-210801T0000Z/
Choctaw-Clarke-Wilcox-Monroe-Conecuh-Butler-Crenshaw-Escambia-
Covington-
Including the cities of Butler, Lisman, Silas, Grove Hill, 
Jackson, Thomasville, Camden, Pine Hill, Homewood, Monroeville, 
Evergreen, Greenville, Brantley, Luverne, Atmore, Brewton, 
Flomaton, Andalusia, and Opp
439 AM CDT Fri Jul 30 2021

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT SATURDAY...

* WHAT...Heat index values up to 110.

* WHERE...Wilcox, Conecuh, Covington, Crenshaw, Escambia, 
  Choctaw, Clarke, Monroe and Butler Counties.

* WHEN...Until 7 PM CDT Saturday.

* 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.

&&

$$
3 follow-up statements
957 
WWUS74 KMOB 301754
NPWMOB

URGENT - WEATHER MESSAGE
National Weather Service Mobile AL
1254 PM CDT Fri Jul 30 2021

ALZ052-261>266-FLZ201>206-MSZ075-076-078-079-310200-
/O.CON.KMOB.EH.W.0001.000000T0000Z-210731T0000Z/
/O.CON.KMOB.EH.W.0002.210731T1500Z-210801T0000Z/
/O.CON.KMOB.HT.Y.0003.210731T0000Z-210731T1500Z/
Washington-Mobile Inland-Baldwin Inland-Mobile Central-
Baldwin Central-Mobile Coastal-Baldwin Coastal-Escambia Inland-
Escambia Coastal-Santa Rosa Inland-Santa Rosa Coastal-
Okaloosa Inland-Okaloosa Coastal-Perry-Greene-Stone-George-
Including the cities of Chatom, Millry, Citronelle, Saraland, 
Stockton, Mobile, Prichard, Theodore, Bay Minette, Daphne, 
Fairhope, Foley, Spanish Fort, Bayou La Batre, Dauphin Island, 
Grand Bay, Fort Morgan, Gulf Shores, Orange Beach, Century, 
Molino, Walnut Hill, Beulah, Ensley, Fort Pickens, Pensacola, 
Pensacola Beach, Perdido Bay, Jay, Milton, Bagdad, Gulf Breeze, 
Navarre, Crestview, Destin, Eglin AFB, Fort Walton Beach, 
Niceville, Seminole, Valparaiso, Wright, Beaumont, New Augusta, 
Richton, Leakesville, McLain, Wiggins, and Lucedale
1254 PM CDT Fri Jul 30 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...
...HEAT ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO
10 AM CDT SATURDAY...
...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM TO 7 PM
CDT SATURDAY...

* WHAT...For the first Excessive Heat Warning, dangerously hot 
  conditions with heat index values up to 109. For the second 
  Excessive Heat Warning, dangerously hot conditions with heat 
  index values up to 111 expected. For the Heat Advisory, heat 
  index values up to 104 expected.

* WHERE...Portions of southwest Alabama, northwest Florida and 
  southeast Mississippi.

* WHEN...For the first Excessive Heat Warning, until 7 PM CDT 
  this evening. For the second Excessive Heat Warning, from 10 
  AM to 7 PM CDT Saturday. For the Heat Advisory, from 7 PM this 
  evening to 10 AM CDT Saturday.

* 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.

&&

$$

MSZ067-310200-
/O.CON.KMOB.EH.W.0001.000000T0000Z-210731T0000Z/
/O.CON.KMOB.EH.W.0002.210731T1500Z-210801T0000Z/
/O.CON.KMOB.HT.Y.0005.210731T0000Z-210731T1500Z/
Wayne-
Including the city of Waynesboro
1254 PM CDT Fri Jul 30 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...
...HEAT ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO
10 AM CDT SATURDAY...
...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM TO 7 PM
CDT SATURDAY...

* WHAT...For the first Excessive Heat Warning, dangerously hot 
  conditions with heat index values up to 105. For the second 
  Excessive Heat Warning, dangerously hot conditions with heat 
  index values up to 108 expected. For the Heat Advisory, heat 
  index values up to 101 expected.

* WHERE...Wayne County.

* WHEN...For the first Excessive Heat Warning, until 7 PM CDT 
  this evening. For the second Excessive Heat Warning, from 10 
  AM to 7 PM CDT Saturday. For the Heat Advisory, from 7 PM this 
  evening to 10 AM CDT Saturday.

* 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.

&&

$$

ALZ051-053>060-310200-
/O.CON.KMOB.HT.Y.0003.000000T0000Z-210801T0000Z/
Choctaw-Clarke-Wilcox-Monroe-Conecuh-Butler-Crenshaw-Escambia-
Covington-
Including the cities of Butler, Lisman, Silas, Grove Hill, 
Jackson, Thomasville, Camden, Pine Hill, Homewood, Monroeville, 
Evergreen, Greenville, Brantley, Luverne, Atmore, Brewton, 
Flomaton, Andalusia, and Opp
1254 PM CDT Fri Jul 30 2021

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT SATURDAY...

* WHAT...Heat index values up to 111.

* WHERE...Wilcox, Conecuh, Covington, Crenshaw, Escambia, 
  Choctaw, Clarke, Monroe and Butler Counties.

* WHEN...Until 7 PM CDT Saturday.

* 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.

&&

$$

JLH
446 
WWUS74 KMOB 310211
NPWMOB

URGENT - WEATHER MESSAGE
National Weather Service Mobile AL
911 PM CDT Fri Jul 30 2021

ALZ052-261>266-FLZ201>206-MSZ075-076-078-079-311015-
/O.CON.KMOB.EH.W.0002.210731T1500Z-210801T0000Z/
/O.CON.KMOB.HT.Y.0003.000000T0000Z-210731T1500Z/
Washington-Mobile Inland-Baldwin Inland-Mobile Central-
Baldwin Central-Mobile Coastal-Baldwin Coastal-Escambia Inland-
Escambia Coastal-Santa Rosa Inland-Santa Rosa Coastal-
Okaloosa Inland-Okaloosa Coastal-Perry-Greene-Stone-George-
Including the cities of Chatom, Millry, Citronelle, Saraland, 
Stockton, Mobile, Prichard, Theodore, Bay Minette, Daphne, 
Fairhope, Foley, Spanish Fort, Bayou La Batre, Dauphin Island, 
Grand Bay, Fort Morgan, Gulf Shores, Orange Beach, Century, 
Molino, Walnut Hill, Beulah, Ensley, Fort Pickens, Pensacola, 
Pensacola Beach, Perdido Bay, Jay, Milton, Bagdad, Gulf Breeze, 
Navarre, Crestview, Destin, Eglin AFB, Fort Walton Beach, 
Niceville, Seminole, Valparaiso, Wright, Beaumont, New Augusta, 
Richton, Leakesville, McLain, Wiggins, and Lucedale
911 PM CDT Fri Jul 30 2021

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT SATURDAY...
...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM TO 7 PM
CDT SATURDAY...

* WHAT...For the Excessive Heat Warning, dangerously hot 
  conditions with heat index values up to 113 expected. For the 
  Heat Advisory, heat index values up to 102.

* WHERE...Portions of southwest Alabama, northwest Florida and 
  southeast Mississippi.

* WHEN...For the Excessive Heat Warning, from 10 AM to 7 PM CDT 
  Saturday. For the Heat Advisory, until 10 AM CDT Saturday.

* 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.

&&

$$

MSZ067-311015-
/O.CON.KMOB.EH.W.0002.210731T1500Z-210801T0000Z/
/O.CON.KMOB.HT.Y.0005.000000T0000Z-210731T1500Z/
Wayne-
Including the city of Waynesboro
911 PM CDT Fri Jul 30 2021

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT SATURDAY...
...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM TO 7 PM
CDT SATURDAY...

* WHAT...For the Excessive Heat Warning, dangerously hot 
  conditions with heat index values up to 108 expected. For the 
  Heat Advisory, heat index values up to 96.

* WHERE...Wayne County.

* WHEN...For the Excessive Heat Warning, from 10 AM to 7 PM CDT 
  Saturday. For the Heat Advisory, until 10 AM CDT Saturday.

* 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.

&&

$$

ALZ051-053>060-311015-
/O.CON.KMOB.HT.Y.0003.000000T0000Z-210801T0000Z/
Choctaw-Clarke-Wilcox-Monroe-Conecuh-Butler-Crenshaw-Escambia-
Covington-
Including the cities of Butler, Lisman, Silas, Grove Hill, 
Jackson, Thomasville, Camden, Pine Hill, Homewood, Monroeville, 
Evergreen, Greenville, Brantley, Luverne, Atmore, Brewton, 
Flomaton, Andalusia, and Opp
911 PM CDT Fri Jul 30 2021

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT SATURDAY...

* WHAT...Heat index values up to 112.

* WHERE...Wilcox, Conecuh, Covington, Crenshaw, Escambia, 
  Choctaw, Clarke, Monroe and Butler Counties.

* WHEN...Until 7 PM CDT Saturday.

* 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.

&&

$$
224 
WWUS74 KMOB 310845
NPWMOB

URGENT - WEATHER MESSAGE
National Weather Service Mobile AL
345 AM CDT Sat Jul 31 2021

ALZ052-261>266-FLZ201>206-MSZ075-076-078-079-311800-
/O.CON.KMOB.EH.W.0002.210731T1500Z-210801T0000Z/
/O.CON.KMOB.HT.Y.0003.000000T0000Z-210731T1500Z/
Washington-Mobile Inland-Baldwin Inland-Mobile Central-
Baldwin Central-Mobile Coastal-Baldwin Coastal-Escambia Inland-
Escambia Coastal-Santa Rosa Inland-Santa Rosa Coastal-
Okaloosa Inland-Okaloosa Coastal-Perry-Greene-Stone-George-
Including the cities of Chatom, Millry, Citronelle, Saraland, 
Stockton, Mobile, Prichard, Theodore, Bay Minette, Daphne, 
Fairhope, Foley, Spanish Fort, Bayou La Batre, Dauphin Island, 
Grand Bay, Fort Morgan, Gulf Shores, Orange Beach, Century, 
Molino, Walnut Hill, Beulah, Ensley, Fort Pickens, Pensacola, 
Pensacola Beach, Perdido Bay, Jay, Milton, Bagdad, Gulf Breeze, 
Navarre, Crestview, Destin, Eglin AFB, Fort Walton Beach, 
Niceville, Seminole, Valparaiso, Wright, Beaumont, New Augusta, 
Richton, Leakesville, McLain, Wiggins, and Lucedale
345 AM CDT Sat Jul 31 2021

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT THIS MORNING...
...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM THIS
MORNING TO 7 PM CDT THIS EVENING...

* WHAT...For the Excessive Heat Warning, dangerously hot
  conditions with heat index values up to 114 expected. For the
  Heat Advisory, heat index values up to 110.

* WHERE...Portions of southwest Alabama, northwest Florida and 
  southeast Mississippi.

* WHEN...For the Excessive Heat Warning, from 10 AM to 7 PM CDT 
  Saturday. For the Heat Advisory, until 10 AM CDT Saturday.

* 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.

&&

$$

MSZ067-311800-
/O.CON.KMOB.EH.W.0002.210731T1500Z-210801T0000Z/
/O.CON.KMOB.HT.Y.0005.000000T0000Z-210731T1500Z/
Wayne-
Including the city of Waynesboro
345 AM CDT Sat Jul 31 2021

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT THIS MORNING...
...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM THIS
MORNING TO 7 PM CDT THIS EVENING...

* WHAT...For the Excessive Heat Warning, dangerously hot
  conditions with heat index values up to 114 expected. For the 
  Heat Advisory, heat index values up to 110.

* WHERE...Wayne County.

* WHEN...For the Excessive Heat Warning, from 10 AM to 7 PM CDT 
  Saturday. For the Heat Advisory, until 10 AM CDT Saturday.

* 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.

&&

$$

ALZ051-053>060-311800-
/O.CON.KMOB.HT.Y.0003.000000T0000Z-210801T0000Z/
Choctaw-Clarke-Wilcox-Monroe-Conecuh-Butler-Crenshaw-Escambia-
Covington-
Including the cities of Butler, Lisman, Silas, Grove Hill, 
Jackson, Thomasville, Camden, Pine Hill, Homewood, Monroeville, 
Evergreen, Greenville, Brantley, Luverne, Atmore, Brewton, 
Flomaton, Andalusia, and Opp
345 AM CDT Sat Jul 31 2021

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING...

* WHAT...Heat index values up to 110.

* WHERE...Wilcox, Conecuh, Covington, Crenshaw, Escambia, 
  Choctaw, Clarke, Monroe and Butler Counties.

* WHEN...Until 7 PM CDT Saturday.

* 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.

&&

$$

The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 29, 7:04 PM CDTSevere Thunderstorm WarningMOBPerry41 min
Jul 30, 4:39 AM CDTExcessive Heat WarningMOBGeorge, Greene, Perry, Stone, Wayne38 hr

Nearby

Heat Advisories in Mississippi, 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.