County: Collin
Issued: 11:09 AM - Mon, Jul 20, 2026
Begins: 11:09 AM - Mon, Jul 20, 2026
Expires: 7:15 AM - Tue, Jul 21, 2026

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

* WHERE...Portions of north central, northeast, and south central
Texas.

* WHEN...Until 8 PM CDT Tuesday.

* IMPACTS...Hot temperatures and high humidity will increase the risk
for heat-related illnesses to occur, particularly for those working
or participating in outdoor activities.

Take extra precautions when outside by staying hydrated, wearing
lightweight and loose fitting clothing, and limiting strenuous
activities to the early morning or evening. Check up on relatives and
neighbors. Never leave young children or pets in an enclosed vehicle,
even for a short time, as temperatures can quickly rise to
life-threatening levels.

Know the signs and symptoms of heat exhaustion and heat stroke. To
reduce risk when outdoors, 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 911 ASAP if you or someone you know is exhibiting signs of heat
stroke.

County: Dallas
Issued: 11:09 AM - Mon, Jul 20, 2026
Begins: 11:09 AM - Mon, Jul 20, 2026
Expires: 7:15 AM - Tue, Jul 21, 2026

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

* WHERE...Portions of north central, northeast, and south central
Texas.

* WHEN...Until 8 PM CDT Tuesday.

* IMPACTS...Hot temperatures and high humidity will increase the risk
for heat-related illnesses to occur, particularly for those working
or participating in outdoor activities.

Take extra precautions when outside by staying hydrated, wearing
lightweight and loose fitting clothing, and limiting strenuous
activities to the early morning or evening. Check up on relatives and
neighbors. Never leave young children or pets in an enclosed vehicle,
even for a short time, as temperatures can quickly rise to
life-threatening levels.

Know the signs and symptoms of heat exhaustion and heat stroke. To
reduce risk when outdoors, 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 911 ASAP if you or someone you know is exhibiting signs of heat
stroke.

County: Denton
Issued: 11:09 AM - Mon, Jul 20, 2026
Begins: 11:09 AM - Mon, Jul 20, 2026
Expires: 7:15 AM - Tue, Jul 21, 2026

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

* WHERE...Portions of north central, northeast, and south central
Texas.

* WHEN...Until 8 PM CDT Tuesday.

* IMPACTS...Hot temperatures and high humidity will increase the risk
for heat-related illnesses to occur, particularly for those working
or participating in outdoor activities.

Take extra precautions when outside by staying hydrated, wearing
lightweight and loose fitting clothing, and limiting strenuous
activities to the early morning or evening. Check up on relatives and
neighbors. Never leave young children or pets in an enclosed vehicle,
even for a short time, as temperatures can quickly rise to
life-threatening levels.

Know the signs and symptoms of heat exhaustion and heat stroke. To
reduce risk when outdoors, 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 911 ASAP if you or someone you know is exhibiting signs of heat
stroke.

County: Ellis
Issued: 11:09 AM - Mon, Jul 20, 2026
Begins: 11:09 AM - Mon, Jul 20, 2026
Expires: 7:15 AM - Tue, Jul 21, 2026

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

* WHERE...Portions of north central, northeast, and south central
Texas.

* WHEN...Until 8 PM CDT Tuesday.

* IMPACTS...Hot temperatures and high humidity will increase the risk
for heat-related illnesses to occur, particularly for those working
or participating in outdoor activities.

Take extra precautions when outside by staying hydrated, wearing
lightweight and loose fitting clothing, and limiting strenuous
activities to the early morning or evening. Check up on relatives and
neighbors. Never leave young children or pets in an enclosed vehicle,
even for a short time, as temperatures can quickly rise to
life-threatening levels.

Know the signs and symptoms of heat exhaustion and heat stroke. To
reduce risk when outdoors, 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 911 ASAP if you or someone you know is exhibiting signs of heat
stroke.

County: Hood
Issued: 11:09 AM - Mon, Jul 20, 2026
Begins: 11:09 AM - Mon, Jul 20, 2026
Expires: 7:15 AM - Tue, Jul 21, 2026

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

* WHERE...Portions of north central, northeast, and south central
Texas.

* WHEN...Until 8 PM CDT Tuesday.

* IMPACTS...Hot temperatures and high humidity will increase the risk
for heat-related illnesses to occur, particularly for those working
or participating in outdoor activities.

Take extra precautions when outside by staying hydrated, wearing
lightweight and loose fitting clothing, and limiting strenuous
activities to the early morning or evening. Check up on relatives and
neighbors. Never leave young children or pets in an enclosed vehicle,
even for a short time, as temperatures can quickly rise to
life-threatening levels.

Know the signs and symptoms of heat exhaustion and heat stroke. To
reduce risk when outdoors, 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 911 ASAP if you or someone you know is exhibiting signs of heat
stroke.

County: Johnson
Issued: 11:09 AM - Mon, Jul 20, 2026
Begins: 11:09 AM - Mon, Jul 20, 2026
Expires: 7:15 AM - Tue, Jul 21, 2026

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

* WHERE...Portions of north central, northeast, and south central
Texas.

* WHEN...Until 8 PM CDT Tuesday.

* IMPACTS...Hot temperatures and high humidity will increase the risk
for heat-related illnesses to occur, particularly for those working
or participating in outdoor activities.

Take extra precautions when outside by staying hydrated, wearing
lightweight and loose fitting clothing, and limiting strenuous
activities to the early morning or evening. Check up on relatives and
neighbors. Never leave young children or pets in an enclosed vehicle,
even for a short time, as temperatures can quickly rise to
life-threatening levels.

Know the signs and symptoms of heat exhaustion and heat stroke. To
reduce risk when outdoors, 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 911 ASAP if you or someone you know is exhibiting signs of heat
stroke.

County: Kaufman
Issued: 11:09 AM - Mon, Jul 20, 2026
Begins: 11:09 AM - Mon, Jul 20, 2026
Expires: 7:15 AM - Tue, Jul 21, 2026

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

* WHERE...Portions of north central, northeast, and south central
Texas.

* WHEN...Until 8 PM CDT Tuesday.

* IMPACTS...Hot temperatures and high humidity will increase the risk
for heat-related illnesses to occur, particularly for those working
or participating in outdoor activities.

Take extra precautions when outside by staying hydrated, wearing
lightweight and loose fitting clothing, and limiting strenuous
activities to the early morning or evening. Check up on relatives and
neighbors. Never leave young children or pets in an enclosed vehicle,
even for a short time, as temperatures can quickly rise to
life-threatening levels.

Know the signs and symptoms of heat exhaustion and heat stroke. To
reduce risk when outdoors, 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 911 ASAP if you or someone you know is exhibiting signs of heat
stroke.

County: Parker
Issued: 11:09 AM - Mon, Jul 20, 2026
Begins: 11:09 AM - Mon, Jul 20, 2026
Expires: 7:15 AM - Tue, Jul 21, 2026

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

* WHERE...Portions of north central, northeast, and south central
Texas.

* WHEN...Until 8 PM CDT Tuesday.

* IMPACTS...Hot temperatures and high humidity will increase the risk
for heat-related illnesses to occur, particularly for those working
or participating in outdoor activities.

Take extra precautions when outside by staying hydrated, wearing
lightweight and loose fitting clothing, and limiting strenuous
activities to the early morning or evening. Check up on relatives and
neighbors. Never leave young children or pets in an enclosed vehicle,
even for a short time, as temperatures can quickly rise to
life-threatening levels.

Know the signs and symptoms of heat exhaustion and heat stroke. To
reduce risk when outdoors, 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 911 ASAP if you or someone you know is exhibiting signs of heat
stroke.

County: Rockwall
Issued: 11:09 AM - Mon, Jul 20, 2026
Begins: 11:09 AM - Mon, Jul 20, 2026
Expires: 7:15 AM - Tue, Jul 21, 2026

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

* WHERE...Portions of north central, northeast, and south central
Texas.

* WHEN...Until 8 PM CDT Tuesday.

* IMPACTS...Hot temperatures and high humidity will increase the risk
for heat-related illnesses to occur, particularly for those working
or participating in outdoor activities.

Take extra precautions when outside by staying hydrated, wearing
lightweight and loose fitting clothing, and limiting strenuous
activities to the early morning or evening. Check up on relatives and
neighbors. Never leave young children or pets in an enclosed vehicle,
even for a short time, as temperatures can quickly rise to
life-threatening levels.

Know the signs and symptoms of heat exhaustion and heat stroke. To
reduce risk when outdoors, 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 911 ASAP if you or someone you know is exhibiting signs of heat
stroke.

County: Tarrant
Issued: 11:09 AM - Mon, Jul 20, 2026
Begins: 11:09 AM - Mon, Jul 20, 2026
Expires: 7:15 AM - Tue, Jul 21, 2026

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

* WHERE...Portions of north central, northeast, and south central
Texas.

* WHEN...Until 8 PM CDT Tuesday.

* IMPACTS...Hot temperatures and high humidity will increase the risk
for heat-related illnesses to occur, particularly for those working
or participating in outdoor activities.

Take extra precautions when outside by staying hydrated, wearing
lightweight and loose fitting clothing, and limiting strenuous
activities to the early morning or evening. Check up on relatives and
neighbors. Never leave young children or pets in an enclosed vehicle,
even for a short time, as temperatures can quickly rise to
life-threatening levels.

Know the signs and symptoms of heat exhaustion and heat stroke. To
reduce risk when outdoors, 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 911 ASAP if you or someone you know is exhibiting signs of heat
stroke.

County: Wise
Issued: 11:09 AM - Mon, Jul 20, 2026
Begins: 11:09 AM - Mon, Jul 20, 2026
Expires: 7:15 AM - Tue, Jul 21, 2026

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

* WHERE...Portions of north central, northeast, and south central
Texas.

* WHEN...Until 8 PM CDT Tuesday.

* IMPACTS...Hot temperatures and high humidity will increase the risk
for heat-related illnesses to occur, particularly for those working
or participating in outdoor activities.

Take extra precautions when outside by staying hydrated, wearing
lightweight and loose fitting clothing, and limiting strenuous
activities to the early morning or evening. Check up on relatives and
neighbors. Never leave young children or pets in an enclosed vehicle,
even for a short time, as temperatures can quickly rise to
life-threatening levels.

Know the signs and symptoms of heat exhaustion and heat stroke. To
reduce risk when outdoors, 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 911 ASAP if you or someone you know is exhibiting signs of heat
stroke.