North Grosvenor Dale, CT Live Doppler Radar
Live radar for North Grosvenor Dale, Windham County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits North Grosvenor Dale?
Since 1996, the National Weather Service has logged damaging thunderstorm winds on 90 days in the Windham forecast zone and Windham County — the most common reported hazard around North Grosvenor Dale, mostly in July and August. Next come heavy snow & winter storms (83 days) and high winds (19 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Damaging thunderstorm winds | 90 | May 2026 | Jun 26, 2024 · 1 death · $500 damage |
| Heavy snow & winter storms | 83 | Feb 2026 | Dec 7, 1996 · $1.0 million damage |
| High winds | 19 | Dec 2025 | Oct 29, 2012 · $438,000 damage |
| Flooding | 12 | Sep 2023 | Oct 15, 2005 · 1 death · $600,000 damage |
| Flash flooding | 9 | Jun 2024 | Aug 12, 2016 · $100,000 damage |
| Lightning casualties & damage | 8 | Jun 2023 | Aug 12, 2016 · $15,000 damage |
| Excessive heat | 4 | Jul 2018 | — |
| Hurricanes & tropical storms | 2 | Aug 2020 | Aug 28, 2011 · $20 million 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 Windham forecast zone and Windham County; damage is as reported, not adjusted for inflation.
How much snow does North Grosvenor Dale get?
A normal year brings about 39 inches of snow to North Grosvenor Dale, based on NOAA's 1991–2020 climate normals for the W Thompson Lake weather station 2.9 miles away. The snowiest month is usually February (11.6 in).
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 0.2 | 0.9 | 6.5 | 10.6 | 11.6 | 7.2 | 1.5 | 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 North Grosvenor Dale?
The closest NEXRAD Doppler radar is KBOX (Boston, MA), about 39 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 North Grosvenor Dale | View |
|---|---|---|---|
| KBOX Boston, MA | 39 mi east | 2,600 ft | Excellent — the lowest scan sees close to the ground |
| KOKX Upton, NY | 92 mi south-southwest | 8,500 ft | Fair — the beam can pass over shallow snow and low-level rotation |
| KENX Albany, NY | 118 mi west-northwest | 12,400 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 North Grosvenor Dale
Since 1950, NOAA has recorded 49 tornadoes within 25 miles of North Grosvenor Dale, 9 of them EF2/F2 or stronger. Most came in August and July. The strongest was an EF3 on June 1, 2011, which passed about 9 miles north-northwest of town and caused 3 deaths. The most recent was an EF0 on September 6, 2025, which touched down about 23 miles north of town.
Hail: 118 reports of 1-inch or larger hail within 25 miles since 1955, 4 of them 2 inches or more; the largest was 2.00-inch hail on July 18, 2012.
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 North Grosvenor Dale'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.
North Grosvenor Dale radar FAQ
Where is the nearest weather radar to North Grosvenor Dale, CT?
KBOX (Boston, MA), about 39 miles east. KOKX (Upton, NY) is 92 miles away and also covers the area.
Does radar show snow in North Grosvenor Dale?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over North Grosvenor Dale the lowest scan from KBOX is about 2,600 ft up.
Is TALON's radar for North Grosvenor Dale 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 North Grosvenor Dale, follow it right away — see watch vs. warning.
Radar for nearby towns
- Danielson, CT radar 12 mi
- Jewett City, CT radar 26 mi
- Norwich, CT radar 32 mi
- Hartford, CT radar 43 mi
- Stonington, CT radar 45 mi
- New London, CT radar 46 mi
- Groton, CT radar 46 mi
- Middletown, CT radar 49 mi
- New Britain, CT radar 50 mi
- Meriden, CT radar 55 mi