Alert archive / Alabama / Heat Advisories in 2023

Heat Advisory 21, NWS Mobile, AL

August 3, 202312 counties in Alabama; Escambia County, Okaloosa County, Santa Rosa County, Florida; 5 counties in Mississippi

NWS Mobile, AL issued this heat advisory at Aug 3, 2023, 2:48 AM CDT for 12 counties in Alabama; Escambia County, Okaloosa County, Santa Rosa County, Florida; 5 counties in Mississippi. It took effect at Aug 4, 2023, 11:00 AM CDT. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
Aug 3, 2023, 2:48 AM CDT (07:48 UTC)
In effect from
Aug 4, 2023, 11:00 AM CDT
Expired
Aug 4, 2023, 7:00 PM CDT
In force
8 hr
Issued by
NWS Mobile, AL

Counties Baldwin County, AL, Butler County, AL, Choctaw County, AL, Clarke County, AL, Conecuh County, AL, Covington County, AL, Crenshaw County, AL, Escambia County, AL, Mobile County, AL, Monroe County, AL, Washington County, AL, Wilcox County, AL, Escambia County, FL, Okaloosa County, FL, Santa Rosa County, FL, George County, MS, Greene County, MS, Perry County, MS, Stone County, MS, Wayne County, MS

The radar

The Mobile radar (KMOB), 83 km from the middle of the area, began a volume at 07:50 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

Eglin AFB/Valpar, FL (KVPS), launched 00:00Z, 7.8 hours before the alert went out and 141 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, Eglin AFB/Valpar, FL at 00:00Z on 2023-08-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 14 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, Eglin AFB/Valpar, FL at 00:00Z on 2023-08-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 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
14 J/kg
Mixed-layer CIN
-64 J/kg
Mixed-layer LCL
2116 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
50 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

120 
WWUS74 KMOB 030748
NPWMOB

URGENT - WEATHER MESSAGE
National Weather Service Mobile AL
248 AM CDT Thu Aug 3 2023

ALZ051-031600-
/O.NEW.KMOB.HT.Y.0021.230804T1600Z-230805T0000Z/
/O.CON.KMOB.HT.Y.0020.230803T1600Z-230804T0000Z/
Choctaw-
Including the cities of Butler, Lisman, and Silas
248 AM CDT Thu Aug 3 2023

...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
7 PM CDT THIS EVENING...
...HEAT ADVISORY IN EFFECT FROM 11 AM TO 7 PM CDT FRIDAY...

* WHAT...For the first Heat Advisory, heat index values up to 
  109 expected. For the second Heat Advisory, heat index values 
  up to 111 expected.

* WHERE...Choctaw County.

* WHEN...For the first Heat Advisory, from 11 AM this morning to 
  7 PM CDT this evening. For the second Heat Advisory, from 11 
  AM to 7 PM CDT Friday.

* 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.

&&

$$

ALZ053>056-059-060-FLZ205-206-031600-
/O.NEW.KMOB.HT.Y.0021.230804T1600Z-230805T0000Z/
Clarke-Wilcox-Monroe-Conecuh-Escambia-Covington-Okaloosa Inland-
Okaloosa Coastal-
Including the cities of Grove Hill, Jackson, Thomasville, Camden,
Pine Hill, Homewood, Monroeville, Evergreen, Atmore, Brewton, 
Flomaton, Andalusia, Opp, Crestview, Destin, Eglin AFB, 
Fort Walton Beach, Niceville, Seminole, Valparaiso, and Wright
248 AM CDT Thu Aug 3 2023

...HEAT ADVISORY IN EFFECT FROM 11 AM TO 7 PM CDT FRIDAY...

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

* WHERE...In Alabama, Clarke, Wilcox, Monroe, Conecuh, Escambia 
  and Covington Counties. In Florida, Okaloosa Inland and 
  Okaloosa Coastal Counties.

* WHEN...From 11 AM to 7 PM CDT Friday.

* 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.

&&

$$

ALZ262-264-266-FLZ201>204-031600-
/O.NEW.KMOB.EH.A.0004.230804T1600Z-230805T0000Z/
/O.EXA.KMOB.HT.Y.0020.230803T1600Z-230804T0000Z/
Baldwin Inland-Baldwin Central-Baldwin Coastal-Escambia Inland-
Escambia Coastal-Santa Rosa Inland-Santa Rosa Coastal-
Including the cities of Stockton, Bay Minette, Daphne, Fairhope, 
Foley, Spanish Fort, Fort Morgan, Gulf Shores, Orange Beach, 
Century, Molino, Walnut Hill, Beulah, Ensley, Fort Pickens, 
Pensacola, Pensacola Beach, Perdido Bay, Jay, Milton, Bagdad, 
Gulf Breeze, and Navarre
248 AM CDT Thu Aug 3 2023

...HEAT ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 7 PM CDT
THIS EVENING...
...EXCESSIVE HEAT WATCH IN EFFECT FROM FRIDAY MORNING THROUGH
FRIDAY EVENING...

* WHAT...For the Heat Advisory, heat index values up to 109
  expected. For the Excessive Heat Watch, dangerously hot
  conditions with heat index values up to 113 possible.

* WHERE...In Alabama, Baldwin Inland, Baldwin Central and 
  Baldwin Coastal Counties. In Florida, Escambia Inland, 
  Escambia Coastal, Santa Rosa Inland and Santa Rosa Coastal 
  Counties.

* WHEN...For the Heat Advisory, from 11 AM this morning to 7 PM 
  CDT this evening. For the Excessive Heat Watch, from Friday 
  morning through Friday evening.

* 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...

Monitor the latest forecasts and warnings for updates on this
situation. Be prepared to 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. This is especially true during
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.

&&

$$

ALZ052-261-263-265-MSZ067-075-076-078-079-031600-
/O.NEW.KMOB.EH.A.0004.230804T1600Z-230805T0000Z/
/O.CON.KMOB.HT.Y.0020.230803T1600Z-230804T0000Z/
Washington-Mobile Inland-Mobile Central-Mobile Coastal-Wayne-
Perry-Greene-Stone-George-
Including the cities of Chatom, Millry, Citronelle, Saraland, 
Mobile, Prichard, Theodore, Bayou La Batre, Dauphin Island, 
Grand Bay, Waynesboro, Beaumont, New Augusta, Richton, 
Leakesville, McLain, Wiggins, and Lucedale
248 AM CDT Thu Aug 3 2023

...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
7 PM CDT THIS EVENING...
...EXCESSIVE HEAT WATCH IN EFFECT FROM FRIDAY MORNING THROUGH
FRIDAY EVENING...

* WHAT...For the Heat Advisory, heat index values up to 110 
  expected. For the Excessive Heat Watch, dangerously hot 
  conditions with heat index values up to 113 possible.

* WHERE...In Alabama, Washington, Mobile Inland, Mobile Central 
  and Mobile Coastal Counties. In Mississippi, Wayne, Perry, 
  Greene, Stone and George Counties.

* WHEN...For the Heat Advisory, from 11 AM this morning to 7 PM 
  CDT this evening. For the Excessive Heat Watch, from Friday 
  morning through Friday evening.

* 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...

Monitor the latest forecasts and warnings for updates on this
situation. Be prepared to 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. This is especially true during
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.

&&

$$
5 follow-up statements
399 
WWUS74 KMOB 031622
NPWMOB

URGENT - WEATHER MESSAGE
National Weather Service Mobile AL
1122 AM CDT Thu Aug 3 2023

ALZ052-261>266-FLZ201>204-MSZ067-075-076-078-079-040030-
/O.CON.KMOB.HT.Y.0020.000000T0000Z-230804T0000Z/
/O.CON.KMOB.EH.A.0004.230804T1600Z-230805T0000Z/
Washington-Mobile Inland-Baldwin Inland-Mobile Central-
Baldwin Central-Mobile Coastal-Baldwin Coastal-Escambia Inland-
Escambia Coastal-Santa Rosa Inland-Santa Rosa Coastal-Wayne-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, Waynesboro, Beaumont, New Augusta, Richton, Leakesville,
McLain, Wiggins, and Lucedale
1122 AM CDT Thu Aug 3 2023

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING...
...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM FRIDAY MORNING
THROUGH FRIDAY EVENING...

* WHAT...For the Heat Advisory, heat index values up to 109. For 
  the Excessive Heat Watch, dangerously hot conditions with heat 
  index values up to 113 possible.

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

* WHEN...For the Heat Advisory, until 7 PM CDT this evening. For 
  the Excessive Heat Watch, from Friday morning through Friday 
  evening.

* 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...

Monitor the latest forecasts and warnings for updates on this
situation. Be prepared to 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. This is especially true during
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.

&&

$$

ALZ051-040030-
/O.CON.KMOB.HT.Y.0020.000000T0000Z-230804T0000Z/
/O.CON.KMOB.HT.Y.0021.230804T1600Z-230805T0000Z/
Choctaw-
Including the cities of Butler, Lisman, and Silas
1122 AM CDT Thu Aug 3 2023

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING...
...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 7 PM CDT
FRIDAY...

* WHAT...For the first Heat Advisory, heat index values up to 
  109. For the second Heat Advisory, heat index values up to 111 
  expected.

* WHERE...Choctaw County.

* WHEN...For the first Heat Advisory, until 7 PM CDT this 
  evening. For the second Heat Advisory, from 11 AM to 7 PM CDT 
  Friday.

* 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.

&&

$$

ALZ053>056-059-060-FLZ205-206-040030-
/O.CON.KMOB.HT.Y.0021.230804T1600Z-230805T0000Z/
Clarke-Wilcox-Monroe-Conecuh-Escambia-Covington-Okaloosa Inland-
Okaloosa Coastal-
Including the cities of Grove Hill, Jackson, Thomasville, Camden,
Pine Hill, Homewood, Monroeville, Evergreen, Atmore, Brewton, 
Flomaton, Andalusia, Opp, Crestview, Destin, Eglin AFB, 
Fort Walton Beach, Niceville, Seminole, Valparaiso, and Wright
1122 AM CDT Thu Aug 3 2023

...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 7 PM CDT
FRIDAY...

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

* WHERE...In Alabama, Clarke, Wilcox, Monroe, Conecuh, Escambia 
  and Covington Counties. In Florida, Okaloosa Inland and 
  Okaloosa Coastal Counties.

* WHEN...From 11 AM to 7 PM CDT Friday.

* 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.

&&

$$
493 
WWUS74 KMOB 032021
NPWMOB

URGENT - WEATHER MESSAGE
National Weather Service Mobile AL
321 PM CDT Thu Aug 3 2023

ALZ052-261>266-FLZ201>204-MSZ067-075-076-078-079-040600-
/O.UPG.KMOB.EH.A.0004.230804T1600Z-230805T0000Z/
/O.EXA.KMOB.HT.Y.0021.230804T1600Z-230805T0000Z/
/O.CON.KMOB.HT.Y.0020.000000T0000Z-230804T0000Z/
Washington-Mobile Inland-Baldwin Inland-Mobile Central-
Baldwin Central-Mobile Coastal-Baldwin Coastal-Escambia Inland-
Escambia Coastal-Santa Rosa Inland-Santa Rosa Coastal-Wayne-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, Waynesboro, Beaumont, New Augusta, Richton, Leakesville,
McLain, Wiggins, and Lucedale
321 PM CDT Thu Aug 3 2023

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING...
...HEAT ADVISORY IN EFFECT FROM 11 AM TO 7 PM CDT FRIDAY...

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

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

* WHEN...For the first Heat Advisory, until 7 PM CDT this 
  evening. For the second Heat Advisory, from 11 AM to 7 PM CDT 
  Friday.

* 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.

&&

$$

ALZ057-058-040600-
/O.EXA.KMOB.HT.Y.0021.230804T1600Z-230805T0000Z/
Butler-Crenshaw-
Including the cities of Greenville, Brantley, and Luverne
321 PM CDT Thu Aug 3 2023

...HEAT ADVISORY IN EFFECT FROM 11 AM TO 7 PM CDT FRIDAY...

* WHAT...Heat index values up to 108 expected.

* WHERE...Butler and Crenshaw Counties.

* WHEN...From 11 AM to 7 PM CDT Friday.

* 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.

&&

$$

ALZ051-040600-
/O.CON.KMOB.HT.Y.0020.000000T0000Z-230804T0000Z/
/O.CON.KMOB.HT.Y.0021.230804T1600Z-230805T0000Z/
Choctaw-
Including the cities of Butler, Lisman, and Silas
321 PM CDT Thu Aug 3 2023

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING...
...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 7 PM CDT
FRIDAY...

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

* WHERE...Choctaw County.

* WHEN...For the first Heat Advisory, until 7 PM CDT this 
  evening. For the second Heat Advisory, from 11 AM to 7 PM CDT 
  Friday.

* 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.

&&

$$

ALZ053>056-059-060-FLZ205-206-040600-
/O.CON.KMOB.HT.Y.0021.230804T1600Z-230805T0000Z/
Clarke-Wilcox-Monroe-Conecuh-Escambia-Covington-Okaloosa Inland-
Okaloosa Coastal-
Including the cities of Grove Hill, Jackson, Thomasville, Camden,
Pine Hill, Homewood, Monroeville, Evergreen, Atmore, Brewton, 
Flomaton, Andalusia, Opp, Crestview, Destin, Eglin AFB, 
Fort Walton Beach, Niceville, Seminole, Valparaiso, and Wright
321 PM CDT Thu Aug 3 2023

...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 7 PM CDT
FRIDAY...

* WHAT...Heat index values up to 109 expected.

* WHERE...In Alabama, Clarke, Wilcox, Monroe, Conecuh, Escambia 
  and Covington Counties. In Florida, Okaloosa Inland and 
  Okaloosa Coastal Counties.

* WHEN...From 11 AM to 7 PM CDT Friday.

* 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.

&&

$$
471 
WWUS74 KMOB 040557
NPWMOB

URGENT - WEATHER MESSAGE
National Weather Service Mobile AL
1257 AM CDT Fri Aug 4 2023

ALZ051>060-261>266-FLZ201>206-MSZ067-075-076-078-079-041400-
/O.CON.KMOB.HT.Y.0021.230804T1600Z-230805T0000Z/
Choctaw-Washington-Clarke-Wilcox-Monroe-Conecuh-Butler-Crenshaw-
Escambia-Covington-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-Wayne-Perry-Greene-Stone-George-
Including the cities of Butler, Lisman, Silas, Chatom, Millry, 
Grove Hill, Jackson, Thomasville, Camden, Pine Hill, Homewood, 
Monroeville, Evergreen, Greenville, Brantley, Luverne, Atmore, 
Brewton, Flomaton, Andalusia, Opp, 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, Waynesboro, Beaumont, 
New Augusta, Richton, Leakesville, McLain, Wiggins, and Lucedale
1257 AM CDT Fri Aug 4 2023

...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
7 PM CDT THIS EVENING...

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

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

* WHEN...From 11 AM this morning to 7 PM CDT this evening.

* 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.

&&

$$
669 
WWUS74 KMOB 040732
NPWMOB

URGENT - WEATHER MESSAGE
National Weather Service Mobile AL
232 AM CDT Fri Aug 4 2023

ALZ051-052-059-261>266-FLZ201>206-MSZ067-075-076-078-079-041600-
/O.NEW.KMOB.HT.Y.0022.230805T1700Z-230806T0000Z/
/O.CON.KMOB.HT.Y.0021.230804T1600Z-230805T0000Z/
Choctaw-Washington-Escambia-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-Wayne-Perry-
Greene-Stone-George-
Including the cities of Butler, Lisman, Silas, Chatom, Millry, 
Atmore, Brewton, Flomaton, 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, Waynesboro, Beaumont, 
New Augusta, Richton, Leakesville, McLain, Wiggins, and Lucedale
232 AM CDT Fri Aug 4 2023

...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
7 PM CDT THIS EVENING...
...HEAT ADVISORY IN EFFECT FROM NOON TO 7 PM CDT SATURDAY...

* WHAT...For the first and second Heat Advisory, heat index values
  up to around 111 expected.

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

* WHEN...For the first Heat Advisory, from 11 AM this morning to 
  7 PM CDT this evening. For the second Heat Advisory, from noon 
  to 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.

&&

$$

ALZ053>058-060-041600-
/O.CON.KMOB.HT.Y.0021.230804T1600Z-230805T0000Z/
Clarke-Wilcox-Monroe-Conecuh-Butler-Crenshaw-Covington-
Including the cities of Grove Hill, Jackson, Thomasville, Camden,
Pine Hill, Homewood, Monroeville, Evergreen, Greenville, 
Brantley, Luverne, Andalusia, and Opp
232 AM CDT Fri Aug 4 2023

...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
7 PM CDT THIS EVENING...

* WHAT...Heat index values up to 109 expected.

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

* WHEN...From 11 AM this morning to 7 PM CDT this evening.

* 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.

&&

$$
702 
WWUS74 KMOB 041709
NPWMOB

URGENT - WEATHER MESSAGE
National Weather Service Mobile AL
1209 PM CDT Fri Aug 4 2023

ALZ051-052-059-261>266-FLZ201>206-MSZ067-075-076-078-079-050100-
/O.CON.KMOB.HT.Y.0021.000000T0000Z-230805T0000Z/
/O.CON.KMOB.HT.Y.0022.230805T1700Z-230806T0000Z/
Choctaw-Washington-Escambia-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-Wayne-Perry-
Greene-Stone-George-
Including the cities of Butler, Lisman, Silas, Chatom, Millry, 
Atmore, Brewton, Flomaton, 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, Waynesboro, Beaumont, 
New Augusta, Richton, Leakesville, McLain, Wiggins, and Lucedale
1209 PM CDT Fri Aug 4 2023

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING...
...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TO 7 PM CDT
SATURDAY...

* WHAT...For the first and second Heat Advisory, heat index 
  values up to around 111 expected.

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

* WHEN...For the first Heat Advisory, from 11 AM this morning to 
  7 PM CDT this evening. For the second Heat Advisory, from noon 
  to 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.

&&

$$

ALZ053>058-060-050000-
/O.CON.KMOB.HT.Y.0021.000000T0000Z-230805T0000Z/
Clarke-Wilcox-Monroe-Conecuh-Butler-Crenshaw-Covington-
Including the cities of Grove Hill, Jackson, Thomasville, Camden,
Pine Hill, Homewood, Monroeville, Evergreen, Greenville, 
Brantley, Luverne, Andalusia, and Opp
1209 PM CDT Fri Aug 4 2023

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

* WHAT...Heat index values up to 109 expected.

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

* WHEN...From 11 AM this morning to 7 PM CDT this evening.

* 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.

&&

$$

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 Mobile, AL wrote its last area forecast discussion before this heat advisory went out at Aug 2, 11:47 PM CDT, 3 hours 1 minute earlier.

Area forecast discussion, Aug 2, 11:47 PM CDT, 3 hours 1 minute before
Area Forecast Discussion
National Weather Service Mobile AL
1147 PM CDT Wed Aug 2 2023

...New AVIATION...

.AVIATION...
(06Z TAFS)
Issued at 1147 PM CDT Wed Aug 2 2023

VFR conditions are expected through the period. Isolated to
scattered showers and storms return to the forecast on Thursday
afternoon, but confidence to include VCTS or TSRA in the TAFs at
this time was low. Winds remain light and variable, but will
become more southerly near the coast Thursday afternoon as the
sea-breeze develops. /14

&&

.PREV DISCUSSION... /issued 645 PM CDT Wed Aug 2 2023/

..New AVIATION...

AVIATION...
(00Z TAFS)
Issued at 645 PM CDT Wed Aug 2 2023

VFR conditions are largely expected through the period. A few isolated
to scattered showers and storms return to the forecast on
Thursday afternoon, but confidence to include in the TAFs at this
time was low. Winds remain light and variable, but will become
more southerly near the coast Thursday afternoon as the sea-
breeze develops. /14

PREV DISCUSSION... /issued 315 PM CDT Wed Aug 2 2023/

.New NEAR TERM, SHORT TERM, LONG TERM, MARINE...

NEAR TERM...
(Now through Thursday)
Issued at 315 PM CDT Wed Aug 2 2023

An upper ridge which extends across the forecast area diminishes a
bit through Thursday as a progressively stronger series of
shortwaves in the northwest flow aloft move mostly into northern
Alabama and Georgia. Deep layer moisture looks to increase with
precipitable water values increasing to 1.8-2.0 inches on Thursday.
While the series of shortwaves will mainly aid in convective
development north of the area, subsidence effects with the upper
ridge will be offset sufficiently to allow for chance pops (up to
30%) in the afternoon. Some strong storms will be possible with
strong gusty winds as the main threat. High temperatures on Thursday
will be in the mid to upper 90s except for lower 90s at the coast.
With the improved deep layer moisture lessening the potential for
dewpoints to mix out, heat index values look to reach 107-109 over
southeast Mississippi and Choctaw, Washington and Mobile counties in
Alabama. Therefore, a Heat Advisory remains in effect Thursday for
this portion of the area. Low temperatures tonight will be very
mild, with mid 70s inland and upper 70s at the coast. A low risk of
rip currents is expected through the period. /22

SHORT TERM...
(Thursday night through Saturday night)
Issued at 315 PM CDT Wed Aug 2 2023

The overall synoptic pattern for the short term remains
relatively unchanged from the near term period. The pesky upper
ridge, which was previously expected to retrograde westward by
this time, looks to maintain its position over the ArkLaTex region
for a little while longer, before finally breaking down and
retreating westward by Friday night. This keeps our region under
northerly to northwesterly flow aloft, with a few embedded
shortwaves traveling within it. Plenty of moisture (PWATs
generally around 1.9 to 2.2 inches) and instability (CAPE values
around 2000-3000 J/kg) will be in place, helping to bring another
round of scattered showers and storms to the region during the
afternoon hours. Highest convective coverage will be seen for
locations east of the Tombigbee River, as subsident effects from
the upper ridge may help to limit convection for areas west. A few
strong storms capable of producing gusty downdraft winds will be
possible due to DCAPEs exceeding 1000 J/kg. We will also continue
to monitor the evolution of storms developing upstream as deep
layer shear increasing to 20-30 kts may allow for storms to
organize into an MCS. If an MCS is able to develop and push into
our region late Friday afternoon/early evening, it would likely
bring an increased risk for damaging winds, along with very heavy
rainfall and frequent lightning.

With the ridge remaining in place, highs on Friday will top out in
the upper 90s, with a few interior locations possibly
reaching/exceeding the 100 degree mark. Additionally, with dew
points surging into the mid 70s, a Heat Advisory will likely be
needed for most, if not all, of the area for heat indices between
108-112 degrees. A few locations may even reach Excessive Heat
Warning criteria (heat index values >113 degrees), so this is
something we will have to continue to monitor in future forecast
packages. A LOW risk of rip currents will continue through the
period. /96

LONG TERM...
(Sunday through Wednesday)
Issued at 315 PM CDT Wed Aug 2 2023

For the first half of the extended term, our local area will be
underneath a weakness aloft as the upper-level ridge retrogrades
back to the west, another ridge over the Atlantic builds across
the Florida Peninsula, and a trough begins to dig into the central
US. Plenty of moisture and instability will allow for the
continuation of diurnally-driven afternoon storms across the area.
With less influence from the ridge, PoPs will tick upward for the
weekend in comparison to previous days (generally around 40-50
percent). Once again, strong storms capable of producing gusty
downdraft winds will be possible each afternoon and we will also
need to keep an eye on storms developing upstream which could form
into an MCS and travel into our area via its outflow. Any MCS
that does develop and move into our area would bring a risk of
damaging winds.

By the start of the workweek, the trough digs further to the south,
helping to put us into more of a zonal flow pattern. Although the
strongest upper-level flow (and associated deep layer shear) looks
to remain over the Tennessee River Valley, several embedded
shortwaves rounding the base of this trough, in combination with
high moisture content and instability, will keep the unsettled
weather pattern in place. Depending on the eventual amplitude of
the trough, may have to watch for additional rounds of strong to
possibly severe storms.

With higher convective coverage, temperatures will trend downward
slightly in comparison to the near/short term periods, with highs
generally reaching the mid 90s each day. However, with high dew
points remaining in place, Heat Advisories will likely be needed for
most of the period for heat indices around or above 108 degrees. /96

MARINE...
Issued at 315 PM CDT Wed Aug 2 2023

No impacts expected throughout the forecast period other
than locally higher winds and seas possible near diurnal storms over
the weekend into early next week. /22

&&

.PRELIMINARY POINT TEMPS/POPS...
Mobile      76  95  77  96  77  97  78  95 /   0  30   0  30  10  40  20  50
Pensacola   79  93  79  94  80  95  79  94 /  10  30   0  30  10  40  20  50
Destin      80  91  81  92  80  93  81  92 /  10  30  10  30  10  40  30  50
Evergreen   73  97  74  97  74  96  74  95 /   0  30  10  30  20  50  20  50
Waynesboro  74  97  75  97  75  97  74  96 /   0  20  10  30  20  40  20  40
Camden      73  94  75  95  74  95  74  93 /   0  30  10  30  20  40  30  40
Crestview   73  96  74  96  74  96  74  95 /   0  30   0  40  10  50  20  50

&&

.MOB WATCHES/WARNINGS/ADVISORIES...
AL...Heat Advisory from 11 AM to 7 PM CDT Thursday for ALZ051-052-261-
     263-265.

FL...None.
MS...Heat Advisory from 11 AM to 7 PM CDT Thursday for MSZ067-075-076-
     078-079.

GM...None.
&&

This product is also available on the web at:
www.weather.gov/mob

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 3, 2:48 AM CDTExcessive Heat WatchMOBBaldwin, Mobile, Washington13 hr

Nearby

Heat Advisories in Alabama, 2023Heat Advisories in Mississippi, 2023Heat Advisories in Florida, 2023Every heat advisory in 2023

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.