Grenloch, NJ Live Doppler Radar
Live radar for Grenloch, Gloucester County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Grenloch?
Since 1996, the National Weather Service has logged damaging thunderstorm winds on 147 days in the Gloucester forecast zone and Gloucester County — the most common reported hazard around Grenloch, mostly in July and June. Next come excessive heat (98 days) and heavy snow & winter storms (65 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Damaging thunderstorm winds | 147 | Jun 2026 | Nov 15, 2008 · 1 death |
| Excessive heat | 98 | Jun 2026 | Aug 6, 2001 · 1 death |
| Heavy snow & winter storms | 65 | Feb 2026 | Jan 11, 2011 · 1 death |
| Flash flooding | 51 | Jun 2026 | Sep 16, 1999 · $5.0 million damage |
| Coastal flooding | 37 | Apr 2024 | Oct 30, 2012 · $1.0 million damage |
| High winds | 36 | Jan 2024 | Oct 29, 2012 · $10 million damage |
| Extreme cold & wind chill | 28 | Dec 2022 | — |
| Flooding | 28 | Jun 2018 | Aug 14, 2011 · 1 death |
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 Gloucester forecast zone and Gloucester County; damage is as reported, not adjusted for inflation.
How much snow does Grenloch get?
A normal year brings about 22 inches of snow to Grenloch, based on NOAA's 1991–2020 climate normals for the Somerdale 4 Sw weather station 3.8 miles away. The snowiest month is usually February (8.2 in).
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 0.0 | 0.2 | 4.7 | 5.8 | 8.2 | 2.7 | 0.3 | 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 Grenloch?
The closest NEXRAD Doppler radar is KDIX (Philadelphia, NJ), about 36 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 Grenloch | View |
|---|---|---|---|
| KDIX Philadelphia, NJ | 36 mi east-northeast | 2,300 ft | Excellent — the lowest scan sees close to the ground |
| KDOX Dover AFB, DE | 69 mi south-southwest | 5,600 ft | Good — most storms and steady rain or snow show clearly |
| KOKX Upton, NY | 138 mi east-northeast | 15,800 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 Grenloch
Since 1950, NOAA has recorded 67 tornadoes within 25 miles of Grenloch, 14 of them EF2/F2 or stronger. Most came in July and June. The strongest was an EF3 on September 1, 2021, which passed about 4 miles northwest of town. The most recent was an EF1 on May 16, 2025, which passed about 9 miles south-southeast of town.
Hail: 206 reports of 1-inch or larger hail within 25 miles since 1955, 7 of them 2 inches or more; the largest was 3.00-inch hail on June 23, 1969.
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 Grenloch'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.
Grenloch radar FAQ
Where is the nearest weather radar to Grenloch, NJ?
KDIX (Philadelphia, NJ), about 36 miles east-northeast. KDOX (Dover AFB, DE) is 69 miles away and also covers the area.
Does radar show snow in Grenloch?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Grenloch the lowest scan from KDIX is about 2,300 ft up.
Is TALON's radar for Grenloch 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 Grenloch, follow it right away — see watch vs. warning.
Radar for nearby towns
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