Cold air will return behind Wednesday’s departing storm system, likely sticking around through the first few days of March (image below courtesy tropicaltidbits).
The overall upper level pattern still favors the potential for a stormy pattern (negative NAO, negative AO and positive PNA) in the east next weekend through the first full week of March (images below courtesy Weatherbell).
A negative NAO (North Atlantic Oscillation) favor’s upper level blocking across the North Atlantic which increases the amplification of the jet stream and slows storms down that may form along the eastern seaboard.
A negative AO (Arctic Oscillation) favor’s cold air to infiltrate the continental United States from Canada.
A positive PNA (Pacific North American) index favors a ridge of high pressure holding strong across the western United states. This ensures that a trough of low pressure will then be situated across the eastern United States.
Thankfully the rain this week will continue to wash away the remaining ugly brown piles of snow and sand off of our area roadways.