Erma, NJ Live Doppler Radar

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

Open live radar for ErmaWhat TALON shows

What weather hits Erma?

Since 1996, the National Weather Service has logged dangerous heat on 68 days in the Cape May forecast zone and Cape May County — the most common reported hazard around Erma, mostly in July and June. Next come damaging thunderstorm winds (68 days) and coastal flooding (57 days).

HazardDays reportedMost recentWorst on record
Excessive heat68Jun 2025Jul 18, 2005 · 2 deaths
Damaging thunderstorm winds68Mar 2026Jun 29, 2012 · $750,000 damage
Coastal flooding57Feb 2026Oct 28, 2012 · $50 million damage
High winds49Apr 2021Oct 29, 2012 · $50 million damage
Heavy snow & winter storms48Jan 2026Jan 7, 1996 · $600,000 damage
Flooding28Jul 2020Aug 28, 2011 · $5.0 million damage
Extreme cold & wind chill27Dec 2022—
Storm surge24Aug 2011Feb 17, 2003 · $250,000 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 Cape May forecast zone and Cape May County; damage is as reported, not adjusted for inflation.

How much snow does Erma get?

A normal year brings about 15 inches of snow to Erma, based on NOAA's 1991–2020 climate normals for the Cape May 2 Nw weather station 3.7 miles away. The snowiest month is usually February (5.7 in).

OctNovDecJanFebMarAprMay
0.00.02.04.55.72.50.10.0

Normal snowfall in inches. TALON Pro compares this season's snow at your location with these normals as winter goes on.

Which radars cover Erma?

The closest NEXRAD Doppler radar is KDOX (Dover AFB, DE), about 32 miles west-southwest. 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 ErmaView
KDOX
Dover AFB, DE		32 mi west-southwest2,000 ftExcellent — the lowest scan sees close to the ground
KDIX
Philadelphia, NJ		71 mi north-northeast5,700 ftGood — most storms and steady rain or snow show clearly
KLWX
Sterling, MD		139 mi west16,100 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 Erma

Since 1950, NOAA has recorded 16 tornadoes within 25 miles of Erma, 2 of them EF2/F2 or stronger. Most came in August and July. The strongest was an F2 on August 27, 1971, which crossed near town. The most recent was an EF1 on July 9, 2021, which touched down about 17 miles north-northeast of town.

Hail: 15 reports of 1-inch or larger hail within 25 miles since 1955; the largest was 1.75-inch hail on May 16, 2025.

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 Erma'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.

Erma radar FAQ

Where is the nearest weather radar to Erma, NJ?

KDOX (Dover AFB, DE), about 32 miles west-southwest. KDIX (Philadelphia, NJ) is 71 miles away and also covers the area.

Does radar show snow in Erma?

Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Erma the lowest scan from KDOX is about 2,000 ft up.

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

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