St. Leonard, MD Live Doppler Radar
Live radar for St. Leonard, Calvert County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits St. Leonard?
Since 1996, the National Weather Service has logged damaging thunderstorm winds on 136 days in the Calvert forecast zone and Calvert County — the most common reported hazard around St. Leonard, mostly in June and July. Next come excessive heat (72 days) and heavy snow & winter storms (35 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Damaging thunderstorm winds | 136 | Jun 2026 | Feb 7, 2020 · $300,000 damage |
| Excessive heat | 72 | Jun 2025 | Jul 18, 2006 · 1 death |
| Heavy snow & winter storms | 35 | Jan 2026 | — |
| High winds | 17 | Feb 2026 | Oct 29, 2012 · $813,000 damage |
| Flash flooding | 17 | Aug 2021 | Sep 16, 1999 · $500,000 damage |
| Flooding | 15 | Dec 2023 | Jul 1, 2016 · $5,000 damage |
| Coastal flooding | 12 | Jan 2024 | Feb 4, 1998 · $200,000 damage |
| Extreme cold & wind chill | 12 | Feb 2026 | Mar 11, 1998 · $3,000 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 Calvert forecast zone and Calvert County; damage is as reported, not adjusted for inflation.
How much snow does St. Leonard get?
A normal year brings about 13 inches of snow to St. Leonard, based on NOAA's 1991–2020 climate normals for the Patuxent River Nas weather station 12.4 miles away. The snowiest month is usually February (6.0 in).
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 0.0 | 0.0 | 1.3 | 3.9 | 6.0 | 1.3 | 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 St. Leonard?
The closest NEXRAD Doppler radar is KDOX (Dover AFB, DE), about 62 miles east-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 St. Leonard | View |
|---|---|---|---|
| KDOX Dover AFB, DE | 62 mi east-northeast | 4,800 ft | Good — most storms and steady rain or snow show clearly |
| KLWX Sterling, MD | 64 mi west-northwest | 5,000 ft | Good — most storms and steady rain or snow show clearly |
| KAKQ Wakefield, VA | 106 mi south-southwest | 10,500 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 St. Leonard
Since 1950, NOAA has recorded 74 tornadoes within 25 miles of St. Leonard, 7 of them EF2/F2 or stronger. Most came in July and June. The strongest was an F4 on April 28, 2002, which crossed near town and caused 3 deaths. The most recent was an EF1 on July 1, 2025, which touched down about 16 miles south-southwest of town.
Hail: 134 reports of 1-inch or larger hail within 25 miles since 1955, 13 of them 2 inches or more; the largest was 3.00-inch hail on May 16, 2022.
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 St. Leonard'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.
St. Leonard radar FAQ
Where is the nearest weather radar to St. Leonard, MD?
KDOX (Dover AFB, DE), about 62 miles east-northeast. KLWX (Sterling, MD) is 64 miles away and also covers the area.
Does radar show snow in St. Leonard?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over St. Leonard the lowest scan from KDOX is about 4,800 ft up.
Is TALON's radar for St. Leonard 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 St. Leonard, follow it right away — see watch vs. warning.
Radar for nearby towns
- Leonardtown, MD radar 14 mi
- Chesapeake Beach, MD radar 16 mi
- North Beach, MD radar 17 mi
- Cambridge, MD radar 24 mi
- La Plata, MD radar 26 mi
- St. Michaels, MD radar 27 mi
- Trappe, MD radar 28 mi
- Easton, MD radar 31 mi
- Morningside, MD radar 33 mi
- District Heights, MD radar 34 mi