Heat Advisory 2, NWS Austin/San Antonio, TX

Atascosa County, TX, Bastrop County, TX, Bexar County, TX, Caldwell County, TX, Comal County, TX, DeWitt County, TX, Dimmit County, TX, Fayette County, TX, Frio County, TX, Gonzales County, TX, Guadalupe County, TX, Hays County, TX, Karnes County, TX, Kinney County, TX, Lavaca County, TX, Lee County, TX, Maverick County, TX, Medina County, TX, Travis County, TX, Uvalde County, TX, Val Verde County, TX, Williamson County, TX, Wilson County, TX, Zavala County, TX

Area Forecast Discussion
National Weather Service Austin/San Antonio TX
1257 AM CDT Fri Jun 19 2026

...New SHORT TERM, LONG TERM, AVIATION...

.KEY MESSAGES...

- Rain chances across portions of the area today through early
Sunday, with locally heavy rainfall possible.

- The heat and humidity continue this weekend into early next week,
with perhaps a brief break on Saturday.

&&

.SHORT TERM...
(Today through Saturday)
Issued at 1237 AM CDT Fri Jun 19 2026

A weakness in the subtropical ridge has developed over Texas. A weak
frontal boundary is moving through west central Texas. Ahead of this
boundary the low level flow is from the southeast across our CWA.
This is keeping a warm, moist airmass over South-Central Texas.
Temperatures are are still in the 80s and 90s and dewpoints are are
in the upper 70s to 80. The weak cold front will stall across
Central Texas today. Ahead of the front winds will shift to a more
easterly direction and temperatures and dewpoints will be a little
lower. The resulting heat indices will also be lower. A Heat
Advisory may be needed for the I-35 Corridor, the Coastal Plains,
and the southern Rio Grande Plains, but the rest of the CWA should
be below criteria. Another wrinkle in the heat forecast will be the
possibility of convection. Convection overnight tonight could leave
mostly cloudy skies across the area which would keep temperatures
down. If convection doesn't materialize there could be more sun and
higher temperatures. Our forecast is for more clouds north and more
sun south. This will mean borderline Heat Advisory conditions over
the Coastal Plains.

Lift associated with the frontal boundary and weak upper flow will
bring chance for showers and thunderstorms starting over the
northwest in the morning and spreading southeast through the day.
Rain chances will continue Friday night and linger into Saturday.
There may be an uptick in convection with heating Saturday
afternoon. PW will be high enough that locally heavy rain will be
possible.

&&

.LONG TERM...
(Saturday night through Thursday)
Issued at 1237 AM CDT Fri Jun 19 2026

Saturday night there will be some low chances for convection
across the south as last bit of energy moves away from our area.
The subtropical ridge will build back over TX Sunday into Monday
bringing back dry weather. Temperatures will warm to near normal
for the last few days of this forecast. With humidity added in the
heat indices will be elevated again Sunday and Monday and we may
need a Heat Advisory for the I-35 Corridor and the Coastal Plains.
We should stay below heat advisory criteria for the rest of the
forecast with slightly drier air.

&&

.AVIATION...
(06Z TAFS)
Issued at 1237 AM CDT Fri Jun 19 2026

MVFR CIGs have overtaken the I-35 Corridor and should be close to
reaching DRT by the time daybreak brings mixing. Will keep DRT VFR
due to the presence of high cloudiness. Some IFR skies are also
expected particularly over SAT/SSF as this was the case for many
hours the prior morning. Strong storms are expected to flare up in
the late afternoon where gusty winds will probably be the primary
impact.

&&

.PRELIMINARY POINT TEMPS/POPS...
Austin Camp Mabry              93  77  91  77 /  30  30  40  10
Austin Bergstrom Intl Airport  93  78  91  77 /  30  30  40  10
New Braunfels Muni Airport     93  76  91  76 /  30  30  40  30
Burnet Muni Airport            90  75  90  75 /  40  30  30  10
Del Rio Intl Airport           96  76  94  77 /  60  60  10  10
Georgetown Muni Airport        92  76  91  76 /  30  40  40  10
Hondo Muni Airport             93  76  90  75 /  30  50  40  30
San Marcos Muni Airport        93  77  91  76 /  30  30  40  30
La Grange - Fayette Regional   93  78  91  78 /  20  30  40  20
San Antonio Intl Airport       93  78  90  77 /  30  40  40  30
Stinson Muni Airport           93  77  91  77 /  40  40  40  30

&&

.EWX WATCHES/WARNINGS/ADVISORIES...
None.
&&

SHORT TERM...05
LONG TERM....05
AVIATION...18

Special Weather Statement
National Weather Service Austin/San Antonio TX
340 AM CDT Fri Jun 19 2026

TXZ183-190945-
Val Verde TX-
340 AM CDT Fri Jun 19 2026

...Strong thunderstorms will impact portions of northwestern Val
Verde County through 445 AM CDT...

At 339 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 19 miles southwest of Ozona to 12 miles south
of Terrell County Gas Plant. Movement was east at 10 mph.

HAZARD...Winds in excess of 40 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Pumpville and Pandale.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3028 10176 3029 10141 2987 10175 2988 10176
TIME...MOT...LOC 0839Z 291DEG 8KT 3059 10151 3019 10188

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH

MO

Special Weather Statement
National Weather Service Austin/San Antonio TX
340 AM CDT Fri Jun 19 2026

TXZ183-190945-
Val Verde TX-
340 AM CDT Fri Jun 19 2026

...Strong thunderstorms will impact portions of northwestern Val
Verde County through 445 AM CDT...

At 340 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 19 miles southwest of Ozona to 12 miles south
of Terrell County Gas Plant. Movement was east at 10 mph.

HAZARD...Winds in excess of 40 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Pandale and Pumpville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3028 10176 3029 10141 2992 10176
TIME...MOT...LOC 0840Z 291DEG 8KT 3059 10151 3019 10188

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH

MO

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>