Loma Mar, CA Live Doppler Radar

Live radar for Loma Mar, San Mateo County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.

Open live radar for Loma MarWhat TALON shows

What weather hits Loma Mar?

Since 1996, the National Weather Service has logged river or areal flooding on 41 days in the Santa Cruz Mountains forecast zone and San Mateo County — the most common reported hazard around Loma Mar, mostly in December and February. Next come high winds (38 days) and debris flows (15 days).

HazardDays reportedMost recentWorst on record
Flooding41Jan 2026Jan 1, 2006 · $5.0 million damage
High winds38May 2026Feb 27, 2006 · 1 death
Debris flows15Jan 2023Apr 4, 2006 · $13 million damage
Flash flooding14Jan 2026Feb 3, 1997 · 1 death
Damaging thunderstorm winds12Dec 2025Oct 19, 2004 · $50,000 damage
Wildfires5Jan 2021Aug 16, 2020 · 1 death
Excessive heat3Mar 2026—
Heavy snow & winter storms3Feb 2023Feb 24, 2023 · $10 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 Santa Cruz Mountains forecast zone and San Mateo County; damage is as reported, not adjusted for inflation.

Which radars cover Loma Mar?

The closest NEXRAD Doppler radar is KMUX (San Francisco, CA), about 23 miles east-southeast. 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 Loma MarView
KMUX
San Francisco, CA		23 mi east-southeast1,400 ftExcellent — the lowest scan sees close to the ground
KDAX
Sacramento, CA		92 mi north-northeast8,500 ftFair — the beam can pass over shallow snow and low-level rotation
KBBX
Beale AFB, CA		158 mi north-northeast19,800 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 Loma Mar

Since 1950, NOAA has recorded 9 tornadoes within 25 miles of Loma Mar, 2 of them EF2/F2 or stronger. Most came in December and February. The strongest was an F2 on May 5, 1998, which touched down about 17 miles east-northeast of town. The most recent was an EF1 on December 14, 2024, which touched down about 21 miles southeast of town.

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 Loma Mar'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.

Loma Mar radar FAQ

Where is the nearest weather radar to Loma Mar, CA?

KMUX (San Francisco, CA), about 23 miles east-southeast. KDAX (Sacramento, CA) is 92 miles away and also covers the area.

How often does Loma Mar flood?

Since 1996 the National Weather Service has logged river or areal flooding on 41 days in the Santa Cruz Mountains forecast zone and San Mateo 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 Loma Mar 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 Loma Mar, follow it right away — see watch vs. warning.

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