Severe Thunderstorm Warning 28, NWS Corpus Christi, TX

Area Forecast Discussion...UPDATED
National Weather Service Corpus Christi TX
1235 PM CDT Fri May 1 2026

...New AVIATION...

.KEY MESSAGES...
Updated at 1228 PM CDT Fri May 1 2026

- Marginal (1 of 5) Severe Weather Risk for most of S TX today
  through tonight.

- Marginal to Slight (1-2 of 4) Risk of Excessive Rainfall today
  through tonight.

- Gale Warning Friday evening through Saturday morning, then
  Small Craft Advisory conditions through Saturday afternoon or
  evening.

- Wind Advisory in effect this evening.

- Minor Coastal Flooding possible Saturday.

- Moderate Rip Current Risk today through Saturday.

&&

.DISCUSSION...
Issued at 120 AM CDT Fri May 1 2026

A mid/upper level short wave coincident with the cold front and
abundant moisture will continue to lead to showers and
thunderstorms. A marginal risk of severe storms will include most of
South Texas, except along the Rio Grande, today and tonight. If we
can break the cap or if storms move into the area, confidence is
medium to high for severe weather today due to low level moisture
convergence, moderate instability, diffluence aloft, strong PVA and
lift. The main threats will be large hail and damaging winds. There
is a very low chance of a tornado.

There is also a marginal to slight risk of excessive rainfall
through tonight. The slight risk remains generally from Tilden to
Rockport and northward. The rainfall will be beneficial, but we will
need to watch for localized flash flooding with high rainfall rates.
This will mainly affect low lying areas, urban areas, creeks and
streams. Fortunately, the front and associated storms will move
through the region fairly quickly, limiting the chances for
widespread flooding.

Rain chances diminish and skies clear from northwest to southeast
behind the cold front tonight. Cooler temperatures with highs in the
70s and lows in the 50s are expected in the wake of the cold front.
Then a warming trend begins Sunday with moderate heat risk by
Tuesday.

Strong north to northeasterly winds 20 to 30 mph with gusts up to 40
mph are expected behind the front, mainly along the coast, so have a
Wind Advisory in effect tonight from 7 PM through 10 AM Saturday.
Other areas could see wind gusts to 40 mph but, at this time, these
gusts are not expected to last very long so have not included them
in a Wind Advisory. In addition, frequent gusts to gale force is
expected across the marine zones, so have issued the Gale Warning
for this evening through Saturday morning.

Minor coastal flooding is possible behind the cold front tonight
into Saturday during high tide as strong northeasterly flow develops
over the gulf waters, seas build to 10-13 ft, and swell periods
increase to around 8 seconds. We have also continued the moderate
rip of rip currents for today through Saturday, but there is the
potential that we will need to increase this to a high risk.

&&

.AVIATION...
(18Z TAFS)
Issued at 1228 PM CDT Fri May 1 2026

Showers and thunderstorms will continue through this afternoon as
a cold front pushes through the region. IFR/LIFR conditions can be
expected with the heavier rainfall, with generally MVFR outside of
rain areas. MVFR conditions expected through tonight into Saturday
morning. Rain chances diminish through this evening. Behind the
front, strong northerly winds with gusts up to 30-40kt will be
possible. Winds are expected to decrease Saturday morning.

&&

.MARINE...
Issued at 120 AM CDT Fri May 1 2026

A gentle to moderate onshore flow (BF 3-4) ahead of a cold front
will increase slightly to a more moderate flow through today before
shifting to the northeast and then increasing to strong to near gale
(BF 6-7) tonight through Saturday. A Gale Warning is now in effect
this evening through Saturday morning. Winds will gradually diminish
to a moderate to fresh (BF 4- 5) Saturday night through Sunday
before further weakening to gentle to moderate flow and turning east
to southeast. medium to high (30-70%) chance of showers and
thunderstorms today and tonight will diminish from northwest to
southeast Saturday.

&&

.FIRE WEATHER...
Issued at 120 AM CDT Fri May 1 2026

Relative humidity values will remain at or above 35% through the
forecast period. Ahead and along a cold front, there is a medium to
high rain chances tonight through Friday night, which will limit
fire weather concerns into early next week.

&&

.PRELIMINARY POINT TEMPS/POPS...
Corpus Christi    57  76  56  79 /  30   0   0   0
Victoria          53  75  51  80 /  40   0   0   0
Laredo            57  76  56  82 /  10   0   0   0
Alice             56  77  52  82 /  20   0   0   0
Rockport          59  78  62  79 /  30   0   0   0
Cotulla           55  76  53  82 /  10   0   0   0
Kingsville        56  76  54  81 /  20  10   0   0
Navy Corpus       60  76  65  77 /  30  10   0   0

&&

.CRP WATCHES/WARNINGS/ADVISORIES...
TX...Wind Advisory from 7 PM this evening to 10 AM CDT Saturday for
     TXZ245-342>347-442-443-447.

GM...Small Craft Advisory from 7 PM to 10 PM CDT this evening for
     GMZ231-232-236-237-250-255-270-275.

     Gale Warning from 10 PM this evening to 10 AM CDT Saturday for
     GMZ231-232-236-237-250-255-270-275.

&&

DISCUSSION...LS/77
AVIATION...TE/81

Special Weather Statement
National Weather Service Corpus Christi TX
1153 AM CDT Fri May 1 2026

TXZ229-230-011730-
McMullen TX-La Salle TX-
1153 AM CDT Fri May 1 2026

...A STRONG THUNDERSTORM WILL IMPACT NORTHEASTERN LA SALLE AND
NORTHWESTERN MCMULLEN COUNTIES THROUGH 1230 PM CDT...

At 1152 AM CDT, Doppler radar was tracking a strong thunderstorm 9
miles north of Los Angeles, or 13 miles east of Dilley, moving east
at 50 mph.

HAZARD...Wind gusts up to 40 mph and half inch hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Cross, Zella, and Los Angeles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 2864 9852 2857 9851 2844 9906 2863 9913
      2864 9909
TIME...MOT...LOC 1652Z 250DEG 42KT 2859 9897

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

BF

Special Weather Statement
National Weather Service Corpus Christi TX
1231 PM CDT Fri May 1 2026

TXZ230>232-011815-
Live Oak TX-McMullen TX-Bee TX-
1231 PM CDT Fri May 1 2026

...A STRONG THUNDERSTORM WILL IMPACT NORTHEASTERN MCMULLEN...
NORTHWESTERN LIVE OAK AND NORTHWESTERN BEE COUNTIES THROUGH 115 PM
CDT...

At 1231 PM CDT, Doppler radar was tracking a strong thunderstorm near
Crowther, or 10 miles northwest of Choke Canyon, moving east at 65
mph.

HAZARD...Wind gusts up to 40 mph and half inch hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Crowther, Nell, Whitsett, Esseville, Cross, and Pawnee.

This includes Interstate 37 between mile markers 75 and 83.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 2873 9804 2859 9800 2849 9852 2864 9856
      2864 9834 2861 9833 2879 9810
TIME...MOT...LOC 1731Z 255DEG 57KT 2861 9845

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

BF

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