Copperopolis, CA Live Doppler Radar

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

Open live radar for Copperopolis What TALON shows

What weather hits Copperopolis?

Since 1996, the National Weather Service has logged river or areal flooding on 12 days in the Northeastern San Joaquin Valley Below 1000 ft forecast zone and Calaveras County — the most common reported hazard around Copperopolis, mostly in December and January. Next come flash flooding (4 days) and wildfires (2 days).

Hazard	Days reported	Most recent	Worst on record
Flooding	12	Apr 2026	Feb 9, 2017 · $7.0 million damage
Flash flooding	4	Mar 2023	Mar 11, 2023 · $20,000 damage
Wildfires	2	Sep 1999	Sep 9, 1999 · $290,000 damage
Debris flows	2	Mar 2016	Dec 22, 2015 · $10,000 damage
Lightning casualties & damage	1	Sep 1999	—
Damaging thunderstorm winds	1	Jan 2023	Jan 10, 2023 · $11,000 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 Northeastern San Joaquin Valley Below 1000 ft forecast zone and Calaveras County; damage is as reported, not adjusted for inflation.

Which radars cover Copperopolis?

The closest NEXRAD Doppler radar is KDAX (Sacramento, CA), about 69 miles 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 Copperopolis	View
KDAX Sacramento, CA	69 mi northwest	5,600 ft	Good — most storms and steady rain or snow show clearly
KMUX San Francisco, CA	88 mi southwest	8,000 ft	Fair — the beam can pass over shallow snow and low-level rotation
KBBX Beale AFB, CA	121 mi north-northwest	12,800 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 Copperopolis

Since 1950, NOAA has recorded 8 tornadoes within 25 miles of Copperopolis. Most came in March and July. The strongest was an F1 on March 4, 1978, which touched down about 24 miles south-southwest of town. The most recent was an EF1 on March 11, 2023, which touched down about 5 miles east of town.

Hail: 2 reports of 1-inch or larger hail within 25 miles since 1955; the largest was 1.25-inch hail on March 21, 2017.

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 Copperopolis'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.

Copperopolis radar FAQ

Where is the nearest weather radar to Copperopolis, CA?

KDAX (Sacramento, CA), about 69 miles northwest. KMUX (San Francisco, CA) is 88 miles away and also covers the area.

How often does Copperopolis flood?

Since 1996 the National Weather Service has logged river or areal flooding on 12 days in the Northeastern San Joaquin Valley Below 1000 ft forecast zone and Calaveras County. 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 Copperopolis 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 Copperopolis, follow it right away — see watch vs. warning.

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