National Weather Service United States Department of Commerce

In an effort to distinguish high-impact snow squalls from others, the National Weather Service will begin issuing impact-based Snow Squall Warnings using the “significant” tag for events that pose a substantial threat to safe travel.

Forecast Offices currently using Impact-Based Snow Squall Warning Tags:
(as of April 7, 2023)

Missoula (MSO), Great Falls (TFX), Pocatello (PIH), Elko (LKN), Salt Lake City (SLC), Flagstaff (FGZ), Cheyenne (CYS), Riverton (RIW), Grand Junction (GJT), Boulder (BOU), Pueblo (PUB), North Platte (LBF), Caribou (CAR), Gray (GYX), Burlington (BTV), Boston (BOX), Albany (ALY), Buffalo (BUF), Binghamton (BGM), New York City (OKX), State College (CTP), Pittsburgh (PBZ), Charleston WV (RLX), Sterling (LWX), Philadelphia (PHI), Milwaukee (MKX), Charleston (CHS), Norman (OUN), Saint Louis (LSX), Spokane (OTX), and Tampa Bay (TBW)