textproduct: Shreveport

KEY MESSAGES

Issued at 128 PM CDT Mon Aug 17 2026

- Widespread upper 90s/lower triple-digit high temperatures will continue throughout this week, maintaining an elevated risk for heat-related illnesses.

- Increasingly dry soils and parched vegetation resulting from flash drought will support the threat of quick fire starts and rapid fire spreads. - Although rain will be hard to come by, a few opportunities will exist for isolated convection over the next week as the upper ridge axis retrogrades slightly farther west.

DISCUSSION

Issued at 128 PM CDT Mon Aug 17 2026

Early afternoon temperatures are nearly identical to 24 hours ago with few exceptions as mostly sunny skies continue to dominate under this ridge regime. The center of the ridge axis has slowly retrograded slightly westward since yesterday, creating a small opening for a weak boundary to sink into the Ouachitas of SE OK and adjacent SW AR. However, the strength of the ridge continues to steer the vast majority of convection associated with this front to our north across Central AR. Still opted to maintain some very low-end rain chances across our northernmost zones this afternoon through the early evening before resuming a rain-free forecast areawide overnight. Very warm and muggy overnight low temperatures prevail with mid and upper 70s to lower 80s likely holding on throughout the week in addition to near triple-digit highs, albeit a degree or two less by the end of the week if that is any consolation.

The weak boundary referenced above will lift back northward on Tuesday while the upper ridge continues to retrograde farther west through mid to late week. However, we're far from done with the ridge's influence on our region as it will continue to largely dominate our weather given its expansive reach and amplification. In fact, medium-range guidance continues to suggest the center of the ridge axis will actually begin to shift back eastward across the Southern Plains by later this weekend so don't expect much in the way of heat relief anytime soon. With that in mind, the Heat Advisory has already been extended through Wednesday evening and likely will require further extensions through the end of the week if not into this weekend.

As for any additional rain chances beyond today in our northern tier counties, a stray afternoon shower or storm certainly can't be ruled out this time of year but those will be very few and far between throughout of the remainder of this week and the weekend even as another weak boundary attempts to backdoor into our NE zones by late Friday into Saturday. Unfortunately, this doesn't appear to offer any notable increase in rain chances with perhaps some slightly milder and drier air for our SW Arkansas counties. Otherwise, persistence carries on into late August with heat and drought concerns mounting in addition to potential fire weather impacts.

/19/

AVIATION

(00Z TAFS) Issued at 613 PM CDT Mon Aug 17 2026

For the 18/00z TAF update...VFR conditions will continue to prevail throughout this TAF period with some SCT to FEW clouds expected at times. We have been seeing some returns on radar this evening across portions of southeast Oklahoma and southwest Arkansas. Not too confident they will make it anywhere near our terminals, but will continue to keep an eye on it. Otherwise, winds will shift throughout the period from the southwest to the south, but overall should remain under 10kts throughout. /33/

SPOTTER INFORMATION STATEMENT

Issued at 128 PM CDT Mon Aug 17 2026

Spotter activation is not expected at this time, but spotters are encouraged to report any wildfire activity to your local officials and fire department personnel.

/19/

PRELIMINARY POINT TEMPS/POPS

SHV 81 103 81 102 / 0 0 10 0 MLU 80 103 79 101 / 0 10 10 10 DEQ 73 104 75 104 / 20 10 0 0 TXK 78 103 79 102 / 10 0 10 0 ELD 77 102 78 101 / 10 10 10 0 TYR 79 103 80 102 / 0 0 0 0 GGG 79 105 79 103 / 0 0 10 0 LFK 75 101 77 100 / 0 0 0 0

SHV WATCHES/WARNINGS/ADVISORIES

AR...Heat Advisory until 8 PM CDT Wednesday for ARZ050-051-059>061- 070>073.

LA...Heat Advisory until 8 PM CDT Wednesday for LAZ001>006-010>014- 017>022.

OK...Heat Advisory until 8 PM CDT Wednesday for OKZ077.

TX...Heat Advisory until 8 PM CDT Wednesday for TXZ096-097-108>112- 124>126-136>138-149>153-165>167.