Marine Weather and Tide Forecast for East Mountain, TX

DISCUSSION
Issued at 1140 PM CDT Thu Aug 13 2026

An upper-level ridge centered across the north-central gulf coast will continue to migrate northwest, becoming centered over the ArkLaTex by Friday evening, remaining anchored across the ArkLaTex into the Southern Plains through the remainder of the forecast period. The result will be a continuation of hot temperatures nearing or slightly exceeding 100 degrees each day through the middle of next week. A Heat Advisory remains in effect for the entire ArkLaTex through the weekend as heat index values are forecast to exceed 105 degrees. Additionally, this stagnant hot and dry pattern will result in worsening drought conditions.

At the surface, a nearly stationary high across the gulf will continue to bring southerly winds to the region. The stronger daytime winds, up to 10 mph with higher gusts, can be expected across east and northeast Texas as well as southeast Oklahoma.
The combination of dry conditions and the increased winds will lead to the possibility of wildfires across these areas through the weekend.

Otherwise, models continue to suggest a few afternoon showers and thunderstorms possible on Tuesday afternoon as a weak surface boundary drifts south across the region. /05/

AVIATION
(12Z TAFS)
Issued at 531 AM CDT Fri Aug 14 2026

Seeing some MVFR cloud cover across NE TX into NW LA moving north and east which will constitute TEMPO MVFR ceilings through 15z or so this morning across most terminals. Otherwise VFR conditions will return by late morning, continuing through the afternoon into the evening hours. Given the low level pressure gradient, did re- introduce MVFR ceilings in the 06-10z timeframe overnight across our NE TX terminals as well as the SHV terminal. May see some SSW wind gusts today across our NE TX terminals with speeds upwards of 18kts.

13

SPOTTER INFORMATION STATEMENT
Issued at 1116 PM CDT Thu Aug 13 2026

Spotter activation is not expected at this time.

/19/

PRELIMINARY POINT TEMPS/POPS
SHV 100 78 101 79 / 0 0 0 0 MLU 100 77 100 78 / 0 0 0 0 DEQ 100 73 99 74 / 0 0 0 0 TXK 100 77 100 78 / 0 0 0 0 ELD 100 76 99 77 / 0 0 0 0 TYR 100 77 99 77 / 0 0 0 0 GGG 102 76 101 76 / 0 0 0 0 LFK 100 75 99 74 / 0 0 0 0

SHV WATCHES/WARNINGS/ADVISORIES
AR...Heat Advisory until 8 PM CDT Sunday for ARZ050-051-059>061- 070>073.

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

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

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