textproduct: Austin/San Antonio

KEY MESSAGES

- Patchy to areas of fog is likely again this morning.

- Well above normal to near record high temperatures are in store for today through Thursday.

- Multiple frontal boundaries are expected to elevate fire weather concerns Thursday through Saturday.

SHORT TERM

(Today through Thursday) Issued at 1204 AM CST Wed Jan 7 2026

A dryline pushed well into the I-35 corridor, but higher dew point temperatures pooled over the Rio Grande and Coastal Plains will advance back north overnight. This offers a good potential for advection fog formation over the Coastal Prairies and into the I-35 Corridor, but less is anticipated further inland. Another Dense Fog Advisory is possible. More humid air should overtake all of the forecast area by midday. Highs today may be a couple degrees lower than Tuesday but should still approach the values for record highs and also record high minimums. Thursday will also be near records, and a dry line moving back into the area could aid the warming through the westerly wind component and more insolation.

LONG TERM

(Thursday night through Tuesday) Issued at 1204 AM CST Wed Jan 7 2026

Thursday, the dry-line is halted, but instead of retreating west overnight, it stalls as westerly winds overrun the boundary to help hold it in place during the decoupling period. Then, by midday Friday, a polar front backed by a potent upper trough should bring enough dynamic lift to trigger some showers and storms, perhaps some strong ones, east of I-35 and north of I-10 in the afternoon. SPC has a Marginal Risk over parts of Central TX just NE of our forecast areas, which is something to be monitored for expansion.

The afternoon/evening arrival of the front would suggest a more Pacific style front, but late at night the advancement of the trough into TX is more impactful to the surface gradient, and a windy overnight into Saturday morning could lead to a Wind Advisory need. Needless to say, cooler air will be coming, and Saturday into Monday temperatures should be lower than January normals.

A relatively weak low latitude upper disturbance moves across Mexico early next week and helps hold temperatures down through cloud cover. There could even be some light precip Tuesday. Better rain chances should be farther south. More significant surges lie ahead for later next week, so those wondering what happened to January will finally see a weather correction.

AVIATION

(12Z TAFS) Issued at 529 AM CST Wed Jan 7 2026

The forecast remains on track with IFR to LIFR ceilings expected to develop at SSF and the remainder of the terminals should remain VFR. MVFR ceilings return again tonight around midnight and continue through tomorrow morning.

PRELIMINARY POINT TEMPS/POPS

Austin Camp Mabry 80 65 81 60 / 0 0 0 10 Austin Bergstrom Intl Airport 82 65 80 61 / 0 0 10 10 New Braunfels Muni Airport 80 63 79 60 / 0 0 0 10 Burnet Muni Airport 79 63 77 53 / 0 10 0 10 Del Rio Intl Airport 83 62 79 53 / 0 10 0 0 Georgetown Muni Airport 80 65 79 58 / 0 0 0 10 Hondo Muni Airport 82 61 79 56 / 0 0 0 0 San Marcos Muni Airport 82 63 81 60 / 0 0 0 10 La Grange - Fayette Regional 83 65 82 65 / 0 0 10 10 San Antonio Intl Airport 80 65 79 61 / 0 0 0 0 Stinson Muni Airport 82 65 80 63 / 0 0 0 0

EWX WATCHES/WARNINGS/ADVISORIES

Dense Fog Advisory until 10 AM CST this morning for TXZ193-194- 208-209-220>225.