Unseasonably cold temperatures were found in the early morning hours of 20 January 2026. This map of observed temperatures from 0800 UTC (2:00 AM CST) shows that a tongue of cold air has plunged southward with subzero temperatures found even in the southern portions of Minnesota and Wisconsin while single-digit... Read More

Much of the state of Alaska is finds itself impacted by a strong atmospheric river on Friday, 16 January 2026. Moisture has been plunging due north from the tropics to the southern coast of Alaska. The river has brought with it precipitation and temperatures well above normal. One of the... Read More

On 14 January 2026, a strong surface pressure gradient was found over the upper Midwestern United States. This can be seen in the NOAA Weather Prediction Center surface map for 1500 UTC on this day. While the center of the low pressure system is off over southern Québec, the tight... Read More

A common sight on calm nights and early mornings is radiation fog: as the surface cools at night, the air above the ground cools as well. The absolute moisture content of the air remains the same, but since the temperature is dropping less water vapor can be contained in equilibrium... Read More