The "Polar Vortex" simply refers to a large area of low pressure and cold air surrounding both of the Earth’s poles which is always present during the winter. It's not uncommon for parts of this …

The polar vortex is a large area of low pressure and cold air surrounding both of the Earth’s poles. It ALWAYS exists near the poles, but weakens in summer and strengthens in winter. The term …

Seasonal Drought Outlook Longer range models - including the CFS - leaned a bit drier for portions of the northern plains and Rockies into the western Great Lakes region, where …

This powerful Arctic intrusion may have been made stronger and longer lasting due to a stretching of the stratospheric polar vortex toward into the central U.S. As low pressure developed in the …

Temperatures / Wind Chill High/Low Temperatures Maps (map temps are approx and not official readings - more specifics in tables below)

The stratospheric polar vortex and tropospheric vortex are two different things. The tropospheric polar vortex is a normal atmospheric feature that affects our weather every winter.

The polar vortex dropped into the Great Lakes region on January 19th; this helped accelerate the movement of intensely cold air southward. The arctic cold front reached the Carolinas during …

Other contributing factors Madden-Julian Oscillation Polar Vortex North Atlantic Oscillation

Oscillation), polar vortex (PV) strength, northern hemisphere snow cover could play a vital role in intraseasonal variability leading to an anomalous weather event such as a major cold snap or …

Rain, mainly after 10am. High near 45. Calm wind becoming south 5 to 9 mph in the morning. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an …