Mercersville, MD Live Doppler Radar

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

Open live radar for MercersvilleWhat TALON shows

What weather hits Mercersville?

Since 1996, the National Weather Service has logged damaging thunderstorm winds on 179 days in the Washington forecast zone and Washington County — the most common reported hazard around Mercersville, mostly in June and July. Next come heavy snow & winter storms (75 days) and excessive heat (46 days).

HazardDays reportedMost recentWorst on record
Damaging thunderstorm winds179Jun 2026Apr 19, 2025 · $500,000 damage
Heavy snow & winter storms75Feb 2026—
Excessive heat46Jun 2025—
Flooding39May 2025Jan 19, 1996 · $15 million damage
Flash flooding31Jul 2024May 15, 2018 · $4.6 million damage
High winds26Feb 2025Oct 29, 2012 · $694,000 damage
Extreme cold & wind chill19Feb 2026—
Ice storms & sleet11Feb 2025Jan 15, 1998 · $10,000 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 Washington forecast zone and Washington County; damage is as reported, not adjusted for inflation.

Which radars cover Mercersville?

The closest NEXRAD Doppler radar is KLWX (Sterling, MD), about 39 miles south-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 MercersvilleView
KLWX
Sterling, MD		39 mi south-southeast2,600 ftExcellent — the lowest scan sees close to the ground
KCCX
State College, PA		99 mi north9,500 ftFair — the beam can pass over shallow snow and low-level rotation
KDOX
Dover AFB, DE		133 mi east-southeast15,000 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 Mercersville

Since 1950, NOAA has recorded 75 tornadoes within 25 miles of Mercersville, 7 of them EF2/F2 or stronger. Most came in June and July. The strongest was an F2 on September 17, 2004, which touched down about 16 miles west-southwest of town. The most recent was an EF0 on August 8, 2024, which touched down about 19 miles west of town.

Hail: 270 reports of 1-inch or larger hail within 25 miles since 1955, 10 of them 2 inches or more; the largest was 4.00-inch hail on August 7, 2023.

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 Mercersville'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.

Mercersville radar FAQ

Where is the nearest weather radar to Mercersville, MD?

KLWX (Sterling, MD), about 39 miles south-southeast. KCCX (State College, PA) is 99 miles away and also covers the area.

Does radar show snow in Mercersville?

Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Mercersville the lowest scan from KLWX is about 2,600 ft up.

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

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