Heat Index

Dangerous heat for Arkansas this week

We are expecting dangerous heat to build throughout the duration of the week. It will be imperative, especially as we near the middle of the week, that any location lacking electricity and/or access to air conditioning will be at a greater risk for heat-related illnesses.

High Temperatures and dangerous heat index values will increase for the duration of the week across Arkansas.

• The most concerning days for heat-related illnesses will be on Wednesday, Thursday, and Friday where both the air temperature and dewpoint temperature will increase.

• The reason will be a warm front lifting through the state on Wednesday leaving a more moist airmass across the state in its wake.

More rounds of showers and thunderstorms for Arkansas into Friday; weather briefing from the National Weather Service in Little Rock

A front will be nearly stationary across southern Arkansas through at least Friday. Scattered to numerous showers and thunderstorms will surround the front Wednesday and again Friday.

Storms that become severe will be capable of producing very large hail and damaging wind.

A new cold front will arrive from the Plains late Saturday into Sunday. Another round of strong to severe thunderstorms will likely accompany the front.

Late in the weekend and early next week, precipitation will become more spotty and it will heat up. Heat index values will likely exceed 100 degrees, mainly from Little Rock southward.

Heat Advisory Tuesday Afternoon and Early Evening for SW Arkansas

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

* WHAT...Heat index values from 105 to 109 degrees are expected.

* WHERE...Much of our four state area of southern Arkansas,
  northern Louisiana, eastern Texas and southeast Oklahoma.

* WHEN...Until 7 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.

Heat Advisory for Southwest Arkansas

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

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

* WHERE...Portions of north central and northwest Louisiana,
  southeast Oklahoma, south central and southwest Arkansas and
  east and northeast Texas.

* WHEN...Until 7 PM CDT Thursday.

* IMPACTS...Hot temperatures and high humidity may cause heat
  illnesses to occur, 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.

Heat Advisory Wednesday for Southwest Arkansas

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

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

* WHERE...Portions of north central and northwest Louisiana,
  southeast Oklahoma, south central and southwest Arkansas and
  east and northeast Texas.

* WHEN...Until 7 PM CDT Wednesday.

* IMPACTS...Hot temperatures and high humidity may cause heat
  illnesses to occur, 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.

Heat Advisory for Southwest Arkansas

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

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

* WHERE...Portions of north central and northwest Louisiana,
  southeast Oklahoma, south central and southwest Arkansas and
  east and northeast Texas.

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

* IMPACTS...Hot temperatures and high humidity may cause heat
  illnesses to occur, 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.

Heat Advisory Continues for SW Arkansas

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

* WHAT...Heat index values from 105 to 110 expected.

* WHERE...Portions of north central and northwest Louisiana,
  southeast Oklahoma, south central and southwest Arkansas and
  east and northeast Texas.

* WHEN...From noon to 7 PM CDT Thursday.

* 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.
Today and Tonight...

A Heat Advisory is in effect today for all of the Four State
Region. Temperatures will again climb into the mid and upper 90s
this afternoon across the area, and when combined with the
humidity, will result in heat indices ranging from 105 to 110
degrees. In addition, isolated to widely scattered showers and
thunderstorms will develop today over portions of East Texas and
North Louisiana, before diminishing by sunset.

Friday through Wednesday...

Very hot, humid, and mostly dry conditions will continue across
the region Friday through Sunday, as an upper level ridge of high
pressure begins to shift southeast into the area. This will result
in the hottest temperatures so far this summer, and when combined
with the humidity, will produce heat indices that will near or
exceed 105 degrees each day. However, a weak cool front will shift
south into the region late Sunday, which will focus an increase
in showers and thunderstorms over the area late Sunday through
Tuesday. The increased cloud cover and rain near and behind the
front will also contribute to slightly cooler temperatures Monday
through midweek.

Heat Advisory Tuesday Afternoon and Early Evening for SW Arkansas

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

* WHAT...Heat index values will range from 105 to 109 degrees.

* WHERE...Northern Louisiana, southern Arkansas, eastern Texas
  and southeast Oklahoma.

* WHEN...Noon to 7 PM CDT on 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.

Heat Advisory Monday for SW Arkansas

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

* WHAT...For Monday, heat index values up to 108 degrees is
  expected.

* WHERE...Area-wide.

* WHEN...For Monday, in effect from noon to 7 PM CDT.

* 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.