textproduct: Austin/San Antonio

KEY MESSAGES

- Dry and cooler temperatures through Tuesday

- Continued dry for the most part on Wednesday with a warming trend starting into the latter part of the week.

- An active weather pattern develops late Friday night into the weekend.

SHORT TERM

(Tonight through Tuesday night) Issued at 103 PM CDT Mon Apr 6 2026

Sunny skies are forecast to prevail for most of South Central Texas throughout the day with mid to high level moisture (clouds) staying over the Coastal Plains. Today's highs are forecast to reach the low 70s across the Hill Country to mid 70s over the Coastal Plains. Elevated moisture (mid and high level clouds) returns across the Val Verde county and vicinity area late afternoon and evening and continues to spread over the rest of South Central Texas into Tuesday as northwest flow aloft prevails. At low levels, a light northern wind flow remains late tonight and starts to shift to the east and southeast overnight through Tuesday morning. With a dry and cool airmass in place, another morning below normal temperature values is in store for the local area with lows in the 40s and 50s.

The northwest to zonal flow persist across the local area on Tuesday while an upper level short wave moves across New Mexico and the Texas Panhandle. Continued mid to high level moisture moving across portions of South Central Texas. At the surface, southerly winds come back and moisture increases and helps temperatures to come up into the mid and upper 70s and low 80s for most of the local area. Can't rule out a shower or two across Val Verde or parts of the southern Edwards Plateau especially Tuesday evening as shower activity could form ahead of the dry-line/surface trough over west Texas. There is low confidence of this happening and therefore, the 20 percent probability.

Low clouds continue to develop over the Coastal Plains and then moving into the I-35 Corridor and spreading throughout South Central Texas overnight with lows in the mid to upper 50s most locations with a few spots getting into the low 60s along the Rio Grande.

LONG TERM

(Wednesday through next Monday) Issued at 103 PM CDT Mon Apr 6 2026

Wednesday morning begins cloudy with clouds lingering around throughout the day. Highs are forecast to reach the mid to upper 70s over most locations and low 80s over the Coastal Plains and parts of the Rio Grande. An upper level short wave is forecast to push across the local area through the period and it could help for a few showers to develop across the Coastal Plains while low level southerly flow pushes the activity to the north. Have low chance PoPs for areas along and east of the I-35 Corridor. By Thursday, another upper level short wave drops into our local area and combines with low level moisture to provide low chances (20-30 percent) for rain across the Coastal Plains, I-35 Corridor, and the southern portion of the Rio Grande. There may be enough instability in place for a few thunderstorms.

A more unstable atmosphere is forecast for Friday ahead of an upper level storm system developing along the west coast of California. At the surface, a high pressure system centered over the mid Atlantic states extends to the southwest into Texas providing increased moisture from the gulf into our area. Scattered showers and thunderstorms (low to medium chances/20 to 40 percent) are anticipated for the eastern two-thirds of South Central Texas during the afternoon hours.

By Saturday, the upper level storm system mentioned above pushes into southern California and northwest Mexico and opens as it reaches the four corners region. At low levels, a low level jet is forecast to bring increased moisture to the local area while the dry- line sits over west Texas. This setup brings the potential for strong to severe weather for the Val Verde and southern Edwards Plateau areas on Saturday afternoon/evening and again on Sunday as the upper level short wave moves across the southern Plains. The Storm Prediction Center is highlighting the Val Verde and southern Edwards Plateau areas for the Severe Weather Outlooks Day 6 (12Z Sat - 12Z Sun) and Day 7 (12Z Sun - 12Z Mon). The main severe weather hazards for these periods are forecast to be large hail and damaging wind gusts. Rainfall amounts with stronger storms could produce a quick quarter to half inch but overall rainfall amounts stay under an inch per latest guidance.

As far as temperatures over the weekend, looking for upper upper 70s to mid 80s.

AVIATION

(18Z TAFS) Issued at 103 PM CDT Mon Apr 6 2026

VFR conditions are forecast for all area terminals throughout the entire forecast period. Winds should remain mostly from the east from 10 to 15 kt with occasional gusts up to 22 knots. Winds should then be VRB overnight before turning back to the east and eventually southeast towards the end of the forecast period.

PRELIMINARY POINT TEMPS/POPS

Austin Camp Mabry 50 77 55 80 / 0 0 10 10 Austin Bergstrom Intl Airport 47 76 52 79 / 0 0 10 10 New Braunfels Muni Airport 47 78 53 80 / 0 0 10 10 Burnet Muni Airport 49 73 53 76 / 0 0 10 10 Del Rio Intl Airport 53 78 58 78 / 0 20 0 10 Georgetown Muni Airport 47 73 52 78 / 0 0 10 10 Hondo Muni Airport 47 76 53 77 / 0 0 0 10 San Marcos Muni Airport 47 77 52 79 / 0 0 10 10 La Grange - Fayette Regional 48 78 54 81 / 0 0 0 10 San Antonio Intl Airport 51 77 56 78 / 0 0 0 10 Stinson Muni Airport 50 78 56 79 / 0 0 0 10

EWX WATCHES/WARNINGS/ADVISORIES

None.