Author: Nina Clarke

Wyoming — A Rapidly Deepening Storm System Is Reshaping the Atmosphere Over North America, A powerful mid-latitude cyclone developing on the lee side of the northern Rockies—centered over Wyoming, Montana, and the Dakotas—is triggering a massive atmospheric response across much of the United States, according to new mesoscale analysis maps reviewed Wednesday evening. Meteorologists describe…

UNITED STATES — New European model data for Christmas week suggests that much of the country may experience a snow-free holiday, with the only significant snowfall projected for portions of the Mountain West and a small area of the upper Northeast. According to the latest European Model snowfall forecast, most major U.S. cities—including Chicago, St….

UNITED STATES — A large, multi-region storm system is preparing to sweep across major sections of the United States from Thursday through Friday, bringing everything from heavy snow and blizzard-like conditions in the Midwest to gusty thunderstorms in the East, while the West Coast braces for flooding rainfall from a powerful atmospheric river. New surface maps…

IDAHO — A rare and potentially historic severe weather event unfolded Wednesday afternoon as a Particularly Dangerous Situation (PDS) Thunderstorm Warning was issued for Wallace, Idaho, including sections of the I-90 corridor, where destructive winds approaching 80 mph were reported. Meteorologists say this may be the first time Idaho has ever seen a severe thunderstorm…

MARYLAND — A Developing Freezing Fog Setup Early Thursday, A stretch of cold weather combined with fresh snow on the ground is setting the stage for freezing fog early Thursday morning across Maryland, according to new high-resolution model guidance. The concern comes as warmer air attempts to move north, creating conditions favorable for supercooled fog…

WASHINGTON — A strengthening atmospheric river pattern continues to hammer the Pacific Northwest this week, with heavy rain, rising rivers, powerful wind gusts, and significant high-elevation snow now expanding south into California. A persistent storm train is locked onto the western United States, funneling repeated rounds of moisture into Washington, Oregon, and the Sierra Nevada….

NORTHEASTERN UNITED STATES — A fast-moving storm system known to many forecasters as the “Grinch Storm” is expected to sweep across large portions of the Northeast and New England between Thursday night and Friday, delivering a round of heavy rain, strong winds, and fast-changing temperatures just days before Christmas. The disturbance, which consistently appears around…

MARYLAND — After a stretch of winter weather that included accumulating snow on Sunday and bitter cold on Monday and Tuesday, Maryland is now preparing for yet another rapid shift in conditions. Forecast models show that early-morning thunderstorms are likely on Friday, with some stronger “boomers” possible as a powerful cold front sweeps through the…

ILLINOIS — A major temperature adjustment is now showing up across multiple forecast models, pointing to a notably colder period between Christmas and New Year for the Eastern United States. New ensemble runs from the ECMWF (Euro) model reveal widespread 4–8°F colder changes compared to previous runs, signaling a potentially meaningful pattern shift as December…

WASHINGTON — A powerful wind event along the Pacific Northwest coast delivered a surprising peak gust on Tuesday, as Westport, Washington recorded a 67 mph wind gust — a significantly stronger reading than any model had forecast for the area. According to real-time observation maps, this isolated but intense gust stood out sharply against the…