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Elev 774 ft, 30.51 °N, 97.68 °W

Round Rock, TX Severe Weather Alertstar_ratehome

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Personal Weather Station
Location: Round Rock, TX
Elevation: 774ft
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Active Weather Alerts

Severe Thunderstorm Warning
Issued: 11:25 PM May. 21, 2026 – National Weather Service
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM CDT
FOR NORTH CENTRAL WILLIAMSON COUNTY...

At 625 PM CDT, a severe thunderstorm was located near Weir, or 7
miles east of Serenada, moving northeast at 20 mph.

HAZARD...60 mph wind gusts and half dollar size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.

Locations impacted include...
Georgetown, Granger, Serenada, Bartlett, Jarrell, Weir, Theon, Jonah,
Walburg, and Schwertner.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&


HAIL THREAT...RADAR INDICATED;
MAX HAIL SIZE...1.25 IN;
WIND THREAT...RADAR INDICATED;
MAX WIND GUST...60 MPH

Flood Advisory
Issued: 10:59 PM May. 21, 2026 – National Weather Service
...FLOOD ADVISORY IN EFFECT UNTIL 9 PM CDT THIS EVENING...

* WHAT...Urban and small stream flooding caused by excessive
rainfall is expected.

* WHERE...A portion of south central Texas, including the following
county, Williamson.

* WHEN...Until 900 PM CDT.

* IMPACTS...Minor flooding in low-lying and poor drainage areas.
Dangerous flows over low-water crossings. Water over roadways.

* ADDITIONAL DETAILS...
- At 559 PM CDT, Doppler radar indicated heavy rain due to
thunderstorms. This will cause urban and small stream
flooding. Up to 1 inch of rain has fallen.
- Additional rainfall amounts of 1 to 2 inches are expected
over the area. This additional rain will result in minor
flooding.
- Some locations that will experience flooding include...
Round Rock, Cedar Park, Georgetown, Serenada, Leander,
Liberty Hill, Jarrell, Florence, Weir, Sun City, Georgetown
Dam, Andice, Seward Junction, Theon, Walburg, Brushy Creek
and Schwertner.
- http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

&&



Flood Watch
Issued: 5:14 PM May. 21, 2026 – National Weather Service
...FLOOD WATCH IN EFFECT FROM FRIDAY EVENING THROUGH MONDAY
EVENING...

* WHAT...Flooding and flash flooding caused by excessive rainfall is
possible.

* WHERE...A portion of south central Texas, including the following
counties, Atascosa, Bandera, Bastrop, Bexar, Blanco, Burnet,
Caldwell, Comal, De Witt, Fayette, Frio, Gillespie, Gonzales,
Guadalupe, Hays, Karnes, Kendall, Kerr, Lavaca, Lee, Llano,
Medina, Travis, Williamson and Wilson.

* WHEN...From Friday evening through Monday evening.

* IMPACTS...There is a potential for life threatening flooding
somewhere in the watch area. Excessive runoff may result in
flooding of rivers, creeks, streams, and other low-lying and
flood-prone locations. Creeks and streams may rise out of their
banks. Low-water crossings may be flooded.

* ADDITIONAL DETAILS...
- Showers and thunderstorms will be capable of producing high
rainfall rates which could quickly lead to flooding across
the area. Be especially cautious as creeks, streams, and
rivers may rise out of their banks quickly. Rainfall amounts
of 2 to 4 inches with isolated amounts up to 6 inches are
possible for the duration of the Flood Watch.
- http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.

&&

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