793 
FLUS44 KTSA 160958
HWOTSA

Hazardous Weather Outlook
National Weather Service Tulsa OK
458 AM CDT Sun Aug 16 2026

ARZ001-002-010-011-119-120-129-219-220-229-OKZ049-053-055>071-
073>075-154-172-176-254-272-276-354-376-171000-
Benton-Carroll-Washington AR-Madison-Northern Crawford-
Northern Franklin-North and Central Sebastian-Southern Crawford-
Central and Southern Franklin-Southern Sebastian-Pushmataha-
Choctaw-Washington OK-Nowata-Craig-Ottawa-Pawnee-Tulsa-Rogers-
Mayes-Delaware-Creek-Okfuskee-Okmulgee-Wagoner-Cherokee-Adair-
Muskogee-McIntosh-Pittsburg-Haskell-Latimer-Western Osage-
Northern Sequoyah-Northern Le Flore-Northeast Osage-
Central and Southern Sequoyah-Central Le Flore-Southeast Osage-
Southern Le Flore-
458 AM CDT Sun Aug 16 2026


This Outlook is for Northwest and West Central Arkansas as well as
much of Eastern Oklahoma.

.DAY ONE...Today and Tonight.

THUNDERSTORMS WITH DANGEROUS LIGHTNING.
RISK...Elevated.
AREA...Northeast Oklahoma and Northwest Arkansas.
ONSET...After 4PM.

DANGEROUS HEAT.
RISK...Significant.
AREA...Eastern Oklahoma and Northwest Arkansas.
ONSET...Midday.

AREA AT GREATEST RISK...Northeast Oklahoma into Arkansas River 
Valley of West Central Arkansas.

DISCUSSION...

Dangerous heat and heat stress remain across eastern Oklahoma and
northwest Arkansas today ahead of a weak frontal boundary 
forecast to move into the region mid to late afternoon. Forecast 
heat index values of 105 to 115 degrees are anticipated, with the
higher values across parts of northeast Oklahoma into the 
Arkansas River valley of west central Arkansas. 

Mid to late afternoon, isolated to scattered thunderstorms are 
expected to develop as the boundary moves into northeast Oklahoma
and far northwest Arkansas. Low shower and storm chances continue
through the evening and remain possible overnight tonight mainly 
along and north of Interstate 40. Localized strong downburst winds
will be the main threat with the stronger storms through the late
evening hours.

SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT...
Spotter Activation Not Expected.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.
MONDAY...Thunderstorm Potential...Dangerous Heat Potential.
TUESDAY...Dangerous Heat Potential.
WEDNESDAY AND THURSDAY...Thunderstorm Potential...Dangerous Heat 
 Potential.
FRIDAY AND SATURDAY...Dangerous Heat Potential.

EXTENDED DISCUSSION...
Additional low shower and storm chances continue during the day 
Monday while the weak frontal boundary sags southward through 
eastern Oklahoma and western Arkansas. Again, strong downburst
winds are the main threat with the stronger storms. 

Behind the boundary, a minor cool down to areas north of 
Interstate 40 are forecast Monday, while heat stress conditions 
persist along and south of Interstate 40. Any break in the heat 
will be short- lived with very hot conditions returning areawide 
Tuesday, and especially Wednesday.

Low storm chances return during the second half of the week with
another frontal boundary potentially approaching the region. Even
with the rain chances through the upcoming week, hot and humid 
conditions remain forecast and heat stress will remain a near 
daily weather impact.

weather.gov/tulsa contains additional information.

$$


File: /home/ldm/var/data/BY_SOURCE/KTSA/FLUS44/20260816T0958.txt



370 
FLUS44 KTSA 160308
HWOTSA

Hazardous Weather Outlook
National Weather Service Tulsa OK
1008 PM CDT Sat Aug 15 2026

ARZ001-002-010-011-119-120-129-219-220-229-OKZ049-053-055>071-
073>075-154-172-176-254-272-276-354-376-170315-
Benton-Carroll-Washington AR-Madison-Northern Crawford-
Northern Franklin-North and Central Sebastian-Southern Crawford-
Central and Southern Franklin-Southern Sebastian-Pushmataha-
Choctaw-Washington OK-Nowata-Craig-Ottawa-Pawnee-Tulsa-Rogers-
Mayes-Delaware-Creek-Okfuskee-Okmulgee-Wagoner-Cherokee-Adair-
Muskogee-McIntosh-Pittsburg-Haskell-Latimer-Western Osage-
Northern Sequoyah-Northern Le Flore-Northeast Osage-
Central and Southern Sequoyah-Central Le Flore-Southeast Osage-
Southern Le Flore-
1008 PM CDT Sat Aug 15 2026

This Outlook is for Northwest and West Central Arkansas as well as
much of Eastern Oklahoma.

.DAY ONE...Tonight.

No hazardous weather is expected at this time.

SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT...
Spotter Activation Not Expected.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.
SUNDAY and MONDAY...Thunderstorm and Dangerous Heat Potential.
TUESDAY...Dangerous Heat Potential.
WEDNESDAY through FRIDAY...Thunderstorm and Dangerous Heat Potential.

EXTENDED DISCUSSION...
Ongoing dangerous heat and heat stress potential persist into 
Sunday with afternoon heat index values of 105 to 115 degrees 
Sunday afternoon. 

Isolated to scattered thunderstorms are expected to
develop late afternoon Sunday and remain possible 
into Monday afternoon. Localized strong downburst winds will be the
main threat with the stronger storms.

A minor cool down to areas north of Interstate 40 Monday, although heat 
stress conditions will persist along and south of Interstate 40. Any break 
in the heat will be short-lived with very hot conditions returning 
areawide Tuesday.

Low storm chances return during the second half of next week. Even
with the rain chances through the upcoming week, hot and humid conditions
remain forecast and heat stress will remain a near daily weather impact. 

weather.gov/tulsa contains additional information.

$$


File: /home/ldm/var/data/BY_SOURCE/KTSA/FLUS44/20260816T0308.txt



940 
FLUS44 KTSA 151759
HWOTSA

Hazardous Weather Outlook
National Weather Service Tulsa OK
1259 PM CDT Sat Aug 15 2026

ARZ001-002-010-011-119-120-129-219-220-229-OKZ049-053-055>071-
073>075-154-172-176-254-272-276-354-376-161800-
Benton-Carroll-Washington AR-Madison-Northern Crawford-
Northern Franklin-North and Central Sebastian-Southern Crawford-
Central and Southern Franklin-Southern Sebastian-Pushmataha-
Choctaw-Washington OK-Nowata-Craig-Ottawa-Pawnee-Tulsa-Rogers-
Mayes-Delaware-Creek-Okfuskee-Okmulgee-Wagoner-Cherokee-Adair-
Muskogee-McIntosh-Pittsburg-Haskell-Latimer-Western Osage-
Northern Sequoyah-Northern Le Flore-Northeast Osage-
Central and Southern Sequoyah-Central Le Flore-Southeast Osage-
Southern Le Flore-
1259 PM CDT Sat Aug 15 2026

This Outlook is for Northwest and West Central Arkansas as well as
much of Eastern Oklahoma.

.DAY ONE...This Afternoon and Tonight.

DANGEROUS HEAT.
RISK...Significant.
AREA...Eastern Oklahoma and Western Arkansas.
ONSET...Ongoing.

DISCUSSION...
Dangerous heat conditions continue, with afternoon heat index 
values from 110 to 115 degrees in much of northeast Oklahoma and 
the Interstate 40 corridor and 105 to 110 degrees in the remainder
of the area. Conditions will begin to slowly improve this 
evening, though little heat relief is expected overnight with lows
only in the upper 70s to lower 80s in most spots.

SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT...
Spotter Activation Not Expected.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.
SUNDAY AND MONDAY...Thunderstorm and Dangerous Heat Potential.
TUESDAY...Dangerous Heat Potential.
WEDNESDAY...Thunderstorm and Dangerous Heat Potential.
THURSDAY AND FRIDAY...Dangerous Heat Potential.

EXTENDED DISCUSSION...
Ongoing dangerous heat and heat stress potential persist into 
Sunday while a weak front sags southward into the region. 
Moisture pooling along this boundary will help to create heat 
index values of 105 to 115 degrees again Sunday afternoon. 

Isolated to scattered showers and thunderstorms are expected to
develop with the front late afternoon Sunday and remain possible 
into Monday afternoon. Localized strong downburst winds will be the
main threat with the stronger storms, likely across northeast 
Oklahoma and into northwest Arkansas.

The front will bring a minor cooldown to areas north of Interstate
40 Monday, although heat stress conditions will persist across the
southern half of the area. Any break in the heat will be short-
lived with very hot conditions returning areawide Tuesday.

Low storm chances return during the second half of next week as 
upper level high pressure retreats westward. Even with the rain 
chances through the upcoming week, hot and humid conditions remain
forecast as well for eastern Oklahoma and northwest Arkansas. 

weather.gov/tulsa contains additional information.

$$


File: /home/ldm/var/data/BY_SOURCE/KTSA/FLUS44/20260815T1759.txt