WEATHER

GREENLAND — A historically intense tropospheric polar vortex is forecast to engulf Greenland this week, with model guidance showing 500mb temperatures plunging to -58.5°C, a level cold enough to support dangerously extreme surface readings under ideal radiational cooling conditions. The latest ECMWF high-resolution data valid early Wednesday shows a deeply consolidated Arctic air mass centered…

NEW JERSEY — In what is being described as a potentially historic winter storm, a Blizzard Warning has been issued for the entire state of New Jersey, marking the first time such a statewide warning has been declared. Forecasters warn that the next 36 hours could bring more than 2 feet of snow, wind gusts…

ILLINOIS AND INDIANA — A growing signal in the latest forecast data points toward a potentially major winter storm impacting northern Illinois and northern Indiana later this week, with the most significant impacts possible from Wednesday evening through Thursday evening. Recent GFS model runs are showing a swath of 8 inches or more of snowfall,…

UNITED STATES — As March begins, forecasters are increasingly eyeing the potential for another impactful winter system, with the Climate Prediction Center (CPC) highlighting a risk of heavy snow between March 2 and March 6 across parts of the Northeast and the Pacific Northwest. The newly issued outlook, valid March 2–8, 2026, outlines targeted areas…

NEW ENGLAND — A powerful nor’easter is rapidly intensifying off the East Coast and is expected to undergo bombogenesis, with central pressure forecast to plunge from around 1000 mb Sunday afternoon near Norfolk, Virginia, to below 970 mb by Monday around midday offshore of New England. That kind of drop — at least 24 millibars…

COLORADO — Mountain snow is set to return Wednesday, and this time the focus shifts toward Summit County and ski areas closer to Denver, bringing much-needed accumulation after many resorts were largely missed by the last system. Latest model guidance shows a wave moving through the central Rockies with snowfall increasing through Wednesday before clearing…

UNITED STATES — The Storm Prediction Center (SPC) is preparing to roll out major updates to its convective outlook graphics, including a redesigned tornado probability map and the introduction of new Conditional Intensity Groups aimed at improving how severe weather threats are communicated. A newly released preview comparing the “Old Way” and “New Way” tornado…

CENTRAL UNITED STATES — The upper atmosphere is beginning to reorganize in a significant way as a shortwave disturbance rounds the base of a developing trough, helping it dig and intensify across the central part of the country. New upper-level analysis at the 400–250mb layer shows increasing vorticity energy stretching from the Rockies into the…

ILLINOIS — Forecast models are shifting again, and the latest data now suggests accumulating snow could fall Thursday across central and northern Illinois, replacing what earlier projections showed as mostly rain. The newest ECMWF run indicates a colder setup capable of producing several inches of snowfall, if current trends continue. This marks a notable change…

GREAT LAKES REGION — Ice coverage across the Great Lakes has dropped sharply from a recent seasonal high near 55% to approximately 33–35%, according to the latest update from the U.S. National Ice Center dated February 19, 2026. The rapid decline signals widespread thawing across Lakes Michigan, Superior, Huron, Erie, and Ontario. While forecasters expect…