Pennsylvania lake effect snow warnings
There are no lake effect snow warnings in Pennsylvania right now. The last one was issued on January 14, 2026.
Intense lake-effect snow bands will produce heavy snow and very poor visibility near the Great Lakes.
Updated from the National Weather Service · lists refresh hourly; the live map loads current alerts directly from the NWS
Active lake effect snow warnings in Pennsylvania
None right now. Other active alerts in Pennsylvania: none.
Lake Effect Snow Warnings in Pennsylvania by year
Pennsylvania averaged 7.7 lake effect snow warnings per year from 2016 to 2025, and has had 1 so far in 2026. The most recent was issued on January 14, 2026.
Counties with the most lake effect snow warnings
What a lake effect snow warning means
Lake-effect snow forms when cold air crosses the relatively warm Great Lakes and picks up moisture. The resulting bands are narrow but can drop two to three inches of snow an hour, so one town can be buried while another a few miles away sees sun.
More about lake effect snow warnings and the national map →
What to do
- Check conditions along your whole route; they change quickly over short distances.
- Avoid travel through active snow bands.
More Pennsylvania alerts
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