Casper Mountain, WY Live Doppler Radar
Live radar for Casper Mountain, Natrona County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Casper Mountain?
Since 1996, the National Weather Service has logged heavy snow or a winter storm on 81 days in the Casper Mountain forecast zone and Natrona County — the most common reported hazard around Casper Mountain, mostly in March and February. Next come damaging thunderstorm winds (80 days) and flash flooding (22 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Heavy snow & winter storms | 81 | May 2026 | Jan 17, 1996 · $4,000 damage |
| Damaging thunderstorm winds | 80 | Jun 2026 | Jul 5, 2013 · $30,000 damage |
| Flash flooding | 22 | Jun 2023 | Jul 3, 2009 · $5.0 million damage |
| High winds | 11 | Apr 2026 | — |
| Wildfires | 5 | Sep 2012 | Sep 9, 2012 · $4.0 million damage |
| Blizzards | 4 | May 2001 | — |
| Extreme cold & wind chill | 4 | Dec 2022 | — |
| Avalanches | 4 | May 2019 | — |
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 Casper Mountain forecast zone and Natrona County; damage is as reported, not adjusted for inflation.
How much snow does Casper Mountain get?
A normal year brings about 82 inches of snow to Casper Mountain, based on NOAA's 1991–2020 climate normals for the Casper 4.3 Wsw weather station 7.4 miles away. The snowiest month is usually December (17.0 in).
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 5.9 | 6.7 | 17.0 | 11.1 | 14.6 | 12.3 | 10.7 | 3.0 |
Normal snowfall in inches. TALON Pro compares this season's snow at your location with these normals as winter goes on.
Which radars cover Casper Mountain?
The closest NEXRAD Doppler radar is KRIW (Riverton, WY), about 112 miles west-northwest. 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 Casper Mountain | View |
|---|---|---|---|
| KRIW Riverton, WY | 112 mi west-northwest | 11,400 ft | Limited — the beam overshoots the lowest part of storms |
| KCYS Cheyenne, WY | 134 mi southeast | 15,200 ft | Limited — the beam overshoots the lowest part of storms |
| KUDX Rapid City, SD | 199 mi east-northeast | 29,000 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 Casper Mountain
Since 1950, NOAA has recorded 28 tornadoes within 25 miles of Casper Mountain, 3 of them EF2/F2 or stronger. Most came in July and June. The strongest was an F2 on May 29, 1971, which touched down about 13 miles north-northeast of town. The most recent was an EF0 on August 23, 2019, which touched down about 13 miles north of town.
Hail: 78 reports of 1-inch or larger hail within 25 miles since 1955, 9 of them 2 inches or more; the largest was 2.75-inch hail on June 12, 1986.
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 Casper Mountain'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.
Casper Mountain radar FAQ
Where is the nearest weather radar to Casper Mountain, WY?
KRIW (Riverton, WY), about 112 miles west-northwest. KCYS (Cheyenne, WY) is 134 miles away and also covers the area.
Does radar show snow in Casper Mountain?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Casper Mountain the lowest scan from KRIW is about 11,400 ft up, so light snow from shallow clouds can be under-shown — check NWS winter alerts too.
Is TALON's radar for Casper Mountain 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 Casper Mountain, follow it right away — see watch vs. warning.
Radar for nearby towns
- Casper, WY radar 7 mi
- Mills, WY radar 9 mi
- Evansville, WY radar 10 mi
- Bar Nunn, WY radar 13 mi
- Glenrock, WY radar 24 mi
- Douglas, WY radar 46 mi