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Boston Weather: 36.0°F | Partly Cloudy


Is It Time For Spring Yet?

By Tim Whitcomb

After a windstorm late last week that left most of the Eastern United States picking up branches, garbage cans, and small dogs, we have been experiencing a fairly calm spell of weather. Temperatures are climbing out of the icebox and the skies have been clear. Complacency is misleading, however — beautiful as the past few days have been, Murphy’s Law and basic fluid dynamics state that they cannot last forever.

The upper-level flow has remained in a straight west-to-east swath across most of the US with jet stream velocities peaking over 100 m/s in some areas. This type of flow is very unstable to perturbations — as such, computer models show several short-wavelength disturbances propagating over us over the next few days, starting later this afternoon. This pattern will continue until late next weekend, where a trough of low pressure should deepen over us, bringing more unsettled weather.

Extended Forecast

Today: Sunny, clear, windy. High 39 F (4 C).

Tonight: Dark, clear, windy. Low 24 F (-4 C).

Tomorrow: Sunny becoming partly cloudy. calmer wind. High 38 F (3 C).

Tomorrow night: Scattered clouds becoming overcast, windier. Low 27 F (-3 C).

Thursday: Overcast becoming scattered clouds. High 42 F (6 C).