textproduct: Austin/San Antonio

SHORT TERM

(Today through Thursday) Issued at 1245 AM CDT Wed Mar 11 2026

The strong to marginally severe weather threat continues through early Wednesday morning as the Pacific front moves across portions of the Hill Country down to the southern part of the Rio Grande. The boundary continues to push to the east for the rest of the overnight hours, however, the instability parameters support for a few strong storms capable of producing small hail and wind gusts of 40 mph to 50 mph. Can't rule out localized heavy rainfall with strongest storms capable of producing couple of inches of rain. An upper level short wave trough located over west Texas is pushing to the southeast and then east through the overnight into Wednesday afternoon period. The combination of the Pacific front and upper level support from the upper level short wave trough as it moves across the far eastern counties likely generates isolated cells capable of producing small hail and strong wind gusts especially along and east of Highway 77. Once again, some of these strongest storms could produce heavy rainfall that could produce minor flooding/ponding of water. As this is happening across the east, a cold front drops down from the north and clearing takes shape across most of the Rio Grande and southern Edwards Plateau. Clouds continue to dissipate and clearing skies spread across all of South Central Texas as the upper level short wave trough pushes to the east of the local area. There is a good setup for mixing as the cold front pushes across the local area and northwest flow aloft dominates to create breezy and gusty wind conditions throughout the night.

Wednesday highs reach the lower to upper 80s across most areas with upper 70s across the southern Edwards Plateau. With Clear skies and breezy conditions in place, overnight lows for early Thursday morning are forecast to range from the 40s into the lower 50s.

SHORT TERM

(Today through Thursday) Issued at 1245 AM CDT Wed Mar 11 2026

The strong to marginally severe weather threat continues through early Wednesday morning as the Pacific front moves across portions of the Hill Country down to the southern part of the Rio Grande. The boundary continues to push to the east for the rest of the overnight hours, however, the instability parameters support for a few strong storms capable of producing small hail and wind gusts of 40 mph to 50 mph. Can't rule out localized heavy rainfall with strongest storms capable of producing couple of inches of rain. An upper level short wave trough located over west Texas is pushing to the southeast and then east through the overnight into Wednesday afternoon period. The combination of the Pacific front and upper level support from the upper level short wave trough as it moves across the far eastern counties likely generates isolated cells capable of producing small hail and strong wind gusts especially along and east of Highway 77. Once again, some of these strongest storms could produce heavy rainfall that could produce minor flooding/ponding of water. As this is happening across the east, a cold front drops down from the north and clearing takes shape across most of the Rio Grande and southern Edwards Plateau. Clouds continue to dissipate and clearing skies spread across all of South Central Texas as the upper level short wave trough pushes to the east of the local area. There is a good setup for mixing as the cold front pushes across the local area and northwest flow aloft dominates to create breezy and gusty wind conditions throughout the night.

Wednesday highs reach the lower to upper 80s across most areas with upper 70s across the southern Edwards Plateau. With Clear skies and breezy conditions in place, overnight lows for early Thursday morning are forecast to range from the 40s into the lower 50s.

LONG TERM

(Thursday night through Tuesday) Issued at 1245 AM CDT Wed Mar 11 2026

The extended forecast period calls for dry and cool and then dry and warm and back to dry and cool weather. Cooler temperatures are forecast for Thursday's highs with temperatures in the 60s and 70s. A surface high pressure system over the local area on Thursday pushes to the east Thursday night into Friday and brings back a southerly flow. This translates to warmer temperatures across South Central Texas for Friday with highs back into the 80s over most places across the local area. The warming trend continue into the weekend with 80s and even lower to mid 90s along the Rio Grande.

A strong cold front is forecast to push across the local area on Sunday night into Monday. Overnight lows for Monday morning get into the 40s across the southern Edwards Plateau and 50s elsewhere. Monday's highs are going to be cool ranging from the 60s and 70s along the Rio Grande. A cool night is in store for Tuesday morning as temperatures drop to the upper 30s across the Hill Country and 40s elsewhere.

With several days of dry weather conditions, expect at least elevated fire weather concerns Monday afternoon as minimum relative humidities drop to the teens and lower 20s with 10 to 15 mph northeast winds in the wake of the boundary.

AVIATION

(12Z TAFS) Issued at 550 AM CDT Wed Mar 11 2026

A line of showers and thunderstorms will be east of I-35 terminals for the start of the period with only some lingering -SHRA expected at KAUS through 13Z. Any lingering low clouds over the I-35 corridor or coastal plains will quickly lift as this system exits to the east with VFR conditions expected for the rest of the period with mostly clear skies. Variable wind under 12 knots this morning will become westerly midday, then veer from the north by this evening. Gusty conditions are expected this afternoon across the area and will linger overnight into Thursday from the Hill Country and locations east with the highest gusts in the 25-35 knot range.

PRELIMINARY POINT TEMPS/POPS

Austin Camp Mabry 83 46 68 46 / 40 20 0 0 Austin Bergstrom Intl Airport 84 45 68 42 / 50 20 0 0 New Braunfels Muni Airport 84 46 69 42 / 40 10 0 0 Burnet Muni Airport 79 42 67 44 / 20 10 0 0 Del Rio Intl Airport 87 50 73 47 / 0 0 0 0 Georgetown Muni Airport 82 43 67 43 / 40 10 0 0 Hondo Muni Airport 84 45 71 41 / 10 0 0 0 San Marcos Muni Airport 85 46 68 42 / 50 20 0 0 La Grange - Fayette Regional 82 46 68 42 / 70 30 0 0 San Antonio Intl Airport 84 47 70 45 / 30 10 0 0 Stinson Muni Airport 85 50 71 44 / 30 10 0 0

EWX WATCHES/WARNINGS/ADVISORIES

None.