Round Rock, TX Live Doppler Radar

Live radar for Round Rock, Williamson County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.

Open live radar for Round RockWhat TALON shows

What weather hits Round Rock?

Since 1996, the National Weather Service has logged flash flooding on 107 days in the Williamson forecast zone and Williamson County — the most common reported hazard around Round Rock, mostly in May and July. Next come damaging thunderstorm winds (85 days) and heavy snow & winter storms (22 days).

HazardDays reportedMost recentWorst on record
Flash flooding107Jun 2026Nov 15, 2001 · 2 deaths · $500,000 damage
Damaging thunderstorm winds85May 2026May 27, 2002 · $350,000 damage
Heavy snow & winter storms22Jan 2026Jan 27, 2009 · 1 death
Flooding7Jun 2020Oct 17, 1998 · $40,000 damage
Extreme cold & wind chill7Jan 2026Feb 14, 2021 · 2 deaths
Excessive heat6Aug 2024Jul 25, 2000 · 1 death
Lightning casualties & damage6Jul 2017Jul 19, 1998 · 1 death
Wildfires5Aug 2023Aug 8, 2023 · $2.0 million damage

Source: NOAA NCEI Storm Events Database, 1996–2026 (the latest year is partial). A "day" is a date with at least one report in the Williamson forecast zone and Williamson County; damage is as reported, not adjusted for inflation.

Which radars cover Round Rock?

The closest NEXRAD Doppler radar is KGRK (Central Texas, TX), about 21 miles northeast. Radar beams climb as they travel, so the height of the lowest scan over town decides how low in a storm the radar can see.

RadarDistanceLowest beam over Round RockView
KGRK
Central Texas, TX		21 mi northeast1,200 ftExcellent — the lowest scan sees close to the ground
KEWX
San Antonio, TX		61 mi south-southwest4,700 ftGood — most storms and steady rain or snow show clearly
KFWS
Dallas/Fort Worth, TX		143 mi north16,800 ftLimited — the beam overshoots the lowest part of storms

Beam height is the center of the 0.5° scan above the radar, with standard refraction. Mountains near a radar can block it further.

Tornado & hail history near Round Rock

Since 1950, NOAA has recorded 137 tornadoes within 25 miles of Round Rock, 30 of them EF2/F2 or stronger. Most came in May and March. The strongest was an F5 on May 27, 1997, which passed about 17 miles north of town and caused 27 deaths. The most recent was an EF1 on April 28, 2024, which passed about 14 miles south-southeast of town.

Hail: 710 reports of 1-inch or larger hail within 25 miles since 1955, 132 of them 2 inches or more; the largest was 4.00-inch hail on May 30, 2024.

Source: NOAA Storm Prediction Center — tornadoes 1950–2025, hail 1955–2025. Distances are to each tornado's track; ratings before February 2007 use the original Fujita scale.

On TALON you get Round Rock's live radar loop, rain/snow/ice colors, flash-flood risk, storm tracks with arrival times and NWS warnings free; close-up radar and rotation detection are part of TALON Pro.

Round Rock radar FAQ

Where is the nearest weather radar to Round Rock, TX?

KGRK (Central Texas, TX), about 21 miles northeast. KEWX (San Antonio, TX) is 61 miles away and also covers the area.

Does radar show snow in Round Rock?

Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Round Rock the lowest scan from KGRK is about 1,200 ft up.

Is TALON's radar for Round Rock free?

Yes — the US radar loop, rain/snow/ice colors, flash-flood risk, storm tracks and NWS warnings are free in any browser. Close-up radar, rotation detection and longer forecasts are part of TALON Pro.

Should I rely on radar for my safety?

No app replaces official warnings. When the National Weather Service issues a warning for Round Rock, follow it right away — see watch vs. warning.

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