WEATHER BLOG: First Day Of School

The pleasant weather with ample sunshine and low humidity will yield to increased humidity and higher chances for thunderstorms this week.

The high pressure zone responsible for the recent spell of nice weather is currently over the DelMarva Peninsula. The high pressure zone will slide east over the Atlantic on Monday allowing winds to shift and blow from the southwest. This will bring higher humidity to the region as dew points rise from the 50s into the middle 60s.

In the upper levels of the atmosphere at jet stream level, a large ridge of high pressure remains steadfast over the Plains and Midwest, bringing sunshine and hot weather to that area. As this ridge amplifies early this week, a southward dip will begin to form over the Northeast.

For Tuesday, a pocket of somewhat drier air in the middle atmosphere will arrive in the wake of Monday evening’s disturbance, reducing the chance for precipitation. Nevertheless, surface dew points in the upper 60s and partial sunshine will allow spotty thunderstorms to form, mainly in the afternoon.

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