Saturday, December 31, 2011

Happy New Year 2012! New Years Day Forecast

Tomorrow’s secondary cold front ends this mild stretch of weather on Sunday. A reinforcing arctic front will come in on Monday Evening. On Monday, highs may be early in the afternoon with temperatures falling throughout the rest of the day. It will turn bitterly cold by Monday Evening with strong, gusty winds building in. The gusty winds will likely continue through Tuesday. From Monday Afternoon into Tuesday Night, the strong northwest winds will open the window for lake effect snow showers and flurries across the entire region. There could even be a snow squall that could allow for spotty coatings, especially in the northern half of the region.

Temperatures will be bitterly cold for Tuesday and Wednesday with highs in the upper twenties and lower thirties. However, especially on Tuesday, winds will make it feel like it is in the single digits and teens at times. Overnight lows on both nights will be low enough to allow for negative wind chill values, especially North and West of Philadelphia.

Wind gusts on Monday and Tuesday may approach wind advisory criteria and gale warning criteria for the waters. Gusts between 35 and 50 MPH may be possible. Timing of the strongest winds may be late Monday into Tuesday.

But as is very typical in La Nina, the cold air is not locked in and by the end of the week…temperatures will moderate. We may have an eventual warm air advection shower to end in our forecast for the end of the week, but I have held off at this moment until the timing becomes clearer.