Rockville, UT Live Doppler Radar
Live radar for Rockville, Washington County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Rockville?
Since 1996, the National Weather Service has logged flash flooding on 195 days in the Zion National Park forecast zone and Washington County — the most common reported hazard around Rockville, mostly in August and July. Next come damaging thunderstorm winds (52 days) and flooding (11 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Flash flooding | 195 | Oct 2025 | Sep 14, 2015 · 13 deaths · $750,000 damage |
| Damaging thunderstorm winds | 52 | Sep 2025 | Jul 24, 2021 · $80,000 damage |
| Flooding | 11 | Dec 2025 | Dec 19, 2010 · $20 million damage |
| Lightning casualties & damage | 4 | Jul 2021 | Apr 7, 2018 · $400,000 damage |
| Debris flows | 2 | Jul 2022 | Jul 28, 2022 · $1,000 damage |
| Excessive heat | 1 | Jun 2021 | — |
| Heavy snow & winter storms | 1 | Dec 2021 | — |
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 Zion National Park forecast zone and Washington County; damage is as reported, not adjusted for inflation.
How much snow does Rockville get?
A normal year brings about 4.0 inches of snow to Rockville, based on NOAA's 1991–2020 climate normals for the Zion Np weather station 5.9 miles away. The snowiest month is usually December (1.7 in).
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 0.0 | 0.1 | 1.7 | 0.7 | 0.8 | 0.7 | 0.0 | 0.0 |
Normal snowfall in inches. TALON Pro compares this season's snow at your location with these normals as winter goes on.
Which radars cover Rockville?
The closest NEXRAD Doppler radar is KICX (Cedar City, UT), about 32 miles north-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.
| Radar | Distance | Lowest beam over Rockville | View |
|---|---|---|---|
| KICX Cedar City, UT | 32 mi north-northeast | 2,000 ft | Excellent — the lowest scan sees close to the ground |
| KESX Las Vegas, NV | 143 mi southwest | 16,800 ft | Limited — the beam overshoots the lowest part of storms |
| KFSX Flagstaff, AZ | 206 mi south-southeast | 30,700 ft | Limited — 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 Rockville
Since 1950, NOAA has recorded 4 tornadoes within 25 miles of Rockville. Most came in August and December. The strongest was an F1 on December 27, 1983, which touched down about 13 miles south-southeast of town. The most recent was a tornado of unknown strength on July 8, 2017, which touched down about 16 miles west-southwest of town.
Hail: 16 reports of 1-inch or larger hail within 25 miles since 1955; the largest was 1.75-inch hail on August 10, 2016.
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 Rockville'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.
Rockville radar FAQ
Where is the nearest weather radar to Rockville, UT?
KICX (Cedar City, UT), about 32 miles north-northeast. KESX (Las Vegas, NV) is 143 miles away and also covers the area.
How often does Rockville flood?
Since 1996 the National Weather Service has logged flash flooding on 195 days in the Zion National Park forecast zone and Washington County; the deadliest was on September 14, 2015, with 13 deaths. TALON's free flash-flood risk layer shows, every 2 minutes, how close the rain that has fallen is to what it takes to flood — turn it on under Layers.
Is TALON's radar for Rockville 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 Rockville, follow it right away — see watch vs. warning.
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