Roslyn Harbor, NY Live Doppler Radar
Live radar for Roslyn Harbor, Nassau County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Roslyn Harbor?
Since 1996, the National Weather Service has logged damaging thunderstorm winds on 107 days in the Northern Nassau forecast zone and Nassau County — the most common reported hazard around Roslyn Harbor, mostly in July and August. Next come flash flooding (79 days) and high winds (30 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Damaging thunderstorm winds | 107 | Jun 2026 | Sep 7, 1998 · $2.5 million damage |
| Flash flooding | 79 | Jul 2025 | Oct 14, 2005 · $11 million damage |
| High winds | 30 | Feb 2026 | Oct 29, 2012 · 4 deaths · $1.0 million damage |
| Heavy snow & winter storms | 27 | Jan 2026 | Jan 28, 2022 · 2 deaths |
| Flooding | 19 | Oct 2017 | Apr 30, 2014 · $16,000 damage |
| Lightning casualties & damage | 19 | Jul 2025 | Mar 11, 2000 · 1 death |
| Coastal flooding | 12 | Jan 2024 | — |
| Blizzards | 5 | Feb 2026 | Feb 23, 2026 · 3 deaths |
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 Northern Nassau forecast zone and Nassau County; damage is as reported, not adjusted for inflation.
How much snow does Roslyn Harbor get?
A normal year brings about 19 inches of snow to Roslyn Harbor, based on NOAA's 1991–2020 climate normals for the Mineola weather station 5.5 miles away. The snowiest month is usually February (6.2 in).
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 0.0 | 0.2 | 5.7 | 2.9 | 6.2 | 3.1 | 0.4 | 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 Roslyn Harbor?
The closest NEXRAD Doppler radar is KOKX (Upton, NY), about 41 miles east. 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 Roslyn Harbor | View |
|---|---|---|---|
| KOKX Upton, NY | 41 mi east | 2,700 ft | Excellent — the lowest scan sees close to the ground |
| KDIX Philadelphia, NJ | 72 mi southwest | 5,900 ft | Good — most storms and steady rain or snow show clearly |
| KENX Albany, NY | 125 mi north | 13,500 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 Roslyn Harbor
Since 1950, NOAA has recorded 36 tornadoes within 25 miles of Roslyn Harbor, 8 of them EF2/F2 or stronger. Most came in July and August. The strongest was an EF2 on August 8, 2007, which passed about 21 miles southwest of town. The most recent was an EF0 on November 13, 2021, which passed about 8 miles southeast of town.
Hail: 139 reports of 1-inch or larger hail within 25 miles since 1955, 10 of them 2 inches or more; the largest was 3.00-inch hail on August 1, 2011.
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 Roslyn Harbor'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.
Roslyn Harbor radar FAQ
Where is the nearest weather radar to Roslyn Harbor, NY?
KOKX (Upton, NY), about 41 miles east. KDIX (Philadelphia, NJ) is 72 miles away and also covers the area.
Does radar show snow in Roslyn Harbor?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Roslyn Harbor the lowest scan from KOKX is about 2,700 ft up.
Is TALON's radar for Roslyn Harbor 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 Roslyn Harbor, follow it right away — see watch vs. warning.