Marine Weather and Tide Forecast for Terrell Hills, TX

SHORT TERM
(Today through Sunday)
Issued at 126 AM CDT Sat Jun 13 2026

Similar to yesterday we should see streamer showers form early in the morning and continue traversing northward from the Gulf due to the abundance of moisture across the area. As such any of these showers could produce a quick quarter to half an inch or more in any of the heavier showers. Once we get some heating during the day we could even see some isolated to scattered thunderstorms that could contain brief heavy rainfall, frequent lightning and brief gusty winds as we remain in a tropical like environment. Most of this activity should decrease after sunset with the most likely areas along and east of the I-35 Corridor. Regarding heat most should see highs in the upper 80s to low 90s, add in the humidity and the "feels like" or heat index temperatures will range more in the 100 to 106 degree range tomorrow. Lows will remain mild with stratus developing overnight and moisture remaining across the area expect temps to remain in the mid to upper 70s.

Sunday we could see more of the same however we could see more widespread activity as even higher moisture moves off the Gulf and across the area. Recent Hi-Res guidance suggests we could see PWATs over 2 inches by daybreak Sunday. Any streamer showers and storms will be capable of producing a quick inch of rain in any of the heavier cells. similarly expect similar highs in the upper 80s to low 90s across the area along with heat indices once again approaching 100 to 105 degree range across the area.

LONG TERM
(Sunday night through Friday)
Issued at 126 AM CDT Sat Jun 13 2026

Moisture levels continue to increase even further by early next week as a disturbance currently located over the Bay of Campeche is expected to move northward into either Northern Mexico or the Southern TX Coast. Global models continue to diverge on the exact details with two solutions possible. The first being that the disturbance and the its vorticity moves northward and dissipates over the mountains of Northern Mexico which would gives us a more drier solution across our area thus reducing the heavy rainfall threat. The second solution is that the disturbance moves northward and emerges along with its vorticity and becomes trapped in weak steering flow allowing for multiple rounds of showers and storms across our area and southern TX. The second solution would lead to a higher signal of heavier rainfall. Decided to remain between the two with medium chance pops (30-60%) staying in the forecast as the latest ensemble guidance indicates a slightly wetter solution.

Additionally, a late season front is expected to move across the area sometime Monday with the highest chances of rain expected during this timeframe as well. Due to the increased moisture across the area we could see a risk for instances of flash flooding as any of the storms would be capable of producing torrential rainfall. As such, WPC has most of the area in a level 1 of 4 risk of excessive rainfall for Sunday and Monday with a level 2 of 4 risk across the Coastal Plains for Monday. Moisture continues to remain across the area as do showers and storms going into Tuesday with WPC again keeping our area along and east of the I-35 Corridor in a level 1 of 4 risk for excessive rainfall as its possible the aforementioned disturbance may remain just close enough to impact the eastern half of our area.

Regarding temperatures we should see temps drop a bit back into the 80s Monday and Tuesday as cloud cover remains rather thick due to scattered to widespread activity of showers and thunderstorms.
Additionally as the front passes winds should switch back to the northeast helping to tame temps somewhat as well. Beyond Tuesday things continue to remain uncertain as the aforementioned disturbance over Mexico and its remnants will have a big impact on if we continue seeing more rainfall or a drier solution leading to more heat across the area. If the direr solution were to happen we could see temperatures approach the upper 90s to near triple digits across the area. Add in the abundant moisture across our region and we could be looking at heat indices near or even above 110 degrees! This would certainly warrant a issuing heat products across the area. However due to the continued uncertainty in which solution wins out this in turn will determine what type of forecast happens mid to late next week. Stay tuned and check back to the forecast often and details will likely change regarding these scenarios.

AVIATION
(12Z TAFS)
Issued at 538 AM CDT Sat Jun 13 2026

The aviation forecast remains on track at area terminals as MVFR/VFR ceilings continue through mid to late morning. VFR ceilings are expected at all sites by 17Z along with a shot at TSRA at AUS, SAT, and SSF with a PROB30 used to account for that chance. Winds will remain southeasterly to east-southeasterly at 10-15 kts with the occasional gust up and over 20 mph.

PRELIMINARY POINT TEMPS/POPS
Austin Camp Mabry 93 77 93 75 / 20 0 50 70 Austin Bergstrom Intl Airport 93 78 93 75 / 20 0 50 70 New Braunfels Muni Airport 92 75 91 74 / 20 10 60 60 Burnet Muni Airport 91 75 91 72 / 0 0 30 80 Del Rio Intl Airport 96 78 97 76 / 0 0 0 50 Georgetown Muni Airport 93 77 92 73 / 10 0 40 80 Hondo Muni Airport 91 75 91 74 / 10 10 30 60 San Marcos Muni Airport 93 76 92 75 / 20 10 60 60 La Grange - Fayette Regional 93 77 91 76 / 20 0 80 70 San Antonio Intl Airport 91 77 91 76 / 20 10 50 60 Stinson Muni Airport 92 77 91 75 / 20 10 50 60

EWX WATCHES/WARNINGS/ADVISORIES
None.