Sienna, TX Live Doppler Radar

Live radar for Sienna, Fort Bend County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.

Open live radar for SiennaWhat TALON shows

What weather hits Sienna?

Since 1996, the National Weather Service has logged damaging thunderstorm winds on 81 days in the Fort Bend forecast zone and Fort Bend County — the most common reported hazard around Sienna, mostly in May and August. Next come flash flooding (46 days) and lightning casualties & damage (18 days).

HazardDays reportedMost recentWorst on record
Damaging thunderstorm winds81Feb 2026May 2, 2000 · $2.0 million damage
Flash flooding46Oct 2021Aug 26, 2017 · 3 deaths · $8.0 billion damage
Lightning casualties & damage18Jun 2026Sep 11, 2003 · 1 death
Excessive heat15Sep 2023Jun 16, 2023 · 1 death
Heavy snow & winter storms6Jan 2025—
Hurricanes & tropical storms5Sep 2021Sep 12, 2008 · 3 deaths · $400 million damage
Ice storms & sleet3Feb 2011Jan 16, 2007 · $2,000 damage
Flooding2Nov 1998—

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 Fort Bend forecast zone and Fort Bend County; damage is as reported, not adjusted for inflation.

Which radars cover Sienna?

The closest NEXRAD Doppler radar is KHGX (Houston, TX), about 26 miles east. 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 SiennaView
KHGX
Houston, TX		26 mi east1,500 ftExcellent — the lowest scan sees close to the ground
KGRK
Central Texas, TX		141 mi northwest16,400 ftLimited — the beam overshoots the lowest part of storms
KLCH
Lake Charles, LA		144 mi east-northeast17,100 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 Sienna

Since 1950, NOAA has recorded 228 tornadoes within 25 miles of Sienna, 31 of them EF2/F2 or stronger. Most came in May and August. The strongest was an F4 on November 21, 1992, which passed about 22 miles northeast of town. The most recent was an EF2 on December 28, 2024, which passed about 15 miles southeast of town.

Hail: 294 reports of 1-inch or larger hail within 25 miles since 1955, 32 of them 2 inches or more; the largest was 3.00-inch hail on April 11, 1997.

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 Sienna'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.

Sienna radar FAQ

Where is the nearest weather radar to Sienna, TX?

KHGX (Houston, TX), about 26 miles east. KGRK (Central Texas, TX) is 141 miles away and also covers the area.

Does radar show snow in Sienna?

Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Sienna the lowest scan from KHGX is about 1,500 ft up.

Is TALON's radar for Sienna 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 Sienna, follow it right away — see watch vs. warning.

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