12:02 AM
— 2:15 PM
* WHAT...Dangerously hot conditions with heat index values up to 111.
* WHERE...Cooke, Grayson, Montague, and Hopkins Counties.
* WHEN...Until 8 PM CDT Wednesday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events.
12:02 AM
— 2:15 PM
* WHAT...For the Extreme Heat Warning, dangerously hot conditions
with heat index values up to 114. For the Heat Advisory, heat index
values up to 108 expected.
* WHERE...Collin, Dallas, Denton, Hunt, Kaufman, Rockwall, Tarrant,
Rains, and Van Zandt Counties.
* WHEN...For the Extreme Heat Warning, until 8 PM CDT Wednesday. For
the Heat Advisory, from 8 PM Wednesday to 8 PM CDT Thursday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events. Hot temperatures and high
humidity will increase the risk for heat-related illnesses to
occur, particularly for those working or participating in outdoor
activities.
12:02 AM
— 2:15 PM
* WHAT...For the Extreme Heat Warning, dangerously hot conditions
with heat index values up to 114. For the Heat Advisory, heat index
values up to 109 expected.
* WHERE...Portions of north central, northeast, and south central
Texas.
* WHEN...For the Extreme Heat Warning, until 8 PM CDT Wednesday. For
the Heat Advisory, from 8 PM Wednesday to 8 PM CDT Thursday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events. Hot temperatures and high
humidity will increase the risk for heat-related illnesses to
occur, particularly for those working or participating in outdoor
activities.
July 21st, 12:20 PM
— 4:00 AM
* WHAT...For the Extreme Heat Warning, dangerously hot conditions
with heat index values up to 110. For the Heat Advisory, heat index
values up to 106 expected.
* WHERE...Johnston, Marshall, Carter, and Love Counties.
* WHEN...For the Extreme Heat Warning, until 8 PM CDT this evening.
For the Heat Advisory, from noon to 8 PM CDT Wednesday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events. Hot temperatures and high
humidity may cause heat illnesses.
1:45 AM
— 8:00 PM
* WHAT...Heat index values up to 109 expected.
* WHERE...Portions of southeast, southern, and southwest Oklahoma and
northern Texas.
* WHEN...From noon today to 8 PM CDT this evening.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
12:02 AM
— 2:15 PM
* WHAT...For the Extreme Heat Warning, dangerously hot conditions
with heat index values up to 114. For the Heat Advisory, heat index
values up to 108 expected.
* WHERE...Collin, Dallas, Denton, Hunt, Kaufman, Rockwall, Tarrant,
Rains, and Van Zandt Counties.
* WHEN...For the Extreme Heat Warning, until 8 PM CDT Wednesday. For
the Heat Advisory, from 8 PM Wednesday to 8 PM CDT Thursday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events. Hot temperatures and high
humidity will increase the risk for heat-related illnesses to
occur, particularly for those working or participating in outdoor
activities.
12:02 AM
— 2:15 PM
* WHAT...For the Extreme Heat Warning, dangerously hot conditions
with heat index values up to 114. For the Heat Advisory, heat index
values up to 109 expected.
* WHERE...Portions of north central, northeast, and south central
Texas.
* WHEN...For the Extreme Heat Warning, until 8 PM CDT Wednesday. For
the Heat Advisory, from 8 PM Wednesday to 8 PM CDT Thursday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events. Hot temperatures and high
humidity will increase the risk for heat-related illnesses to
occur, particularly for those working or participating in outdoor
activities.
July 21st, 2:42 PM
— 5:45 PM
AQAFWD
The Texas Commission on Environmental Quality (TCEQ) has issued
an Ozone Action Day for the Dallas-Fort Worth area for Wednesday,
July 22, 2026.
Atmospheric conditions are expected to be favorable for producing
high levels of ozone air pollution in the Dallas-Fort Worth area
on Wednesday. You can help prevent ozone pollution by sharing a
ride, walking, riding a bicycle, taking your lunch to work,
avoiding drive-through lanes, conserving energy, and keeping your
vehicle properly tuned.
For more information on ozone:
Ozone: The Facts (www.tceq.texas.gov/goto/ozonefacts)
Air North Texas: (www.airnorthtexas.org)
EPA Air Now
(www.airnow.gov/index.cfm?action.local_state&STATEID=45&TAB=0)
Take care of Texas (www.takecareoftexas.org)
North Central Texas Council of Governments Air Quality
(www.nctcog.org/trans/air/index.asp)