Cool and unsettled

 

The surface chart and radar

 

We have high pressure exiting to the east, while a cold front is approaching out of the Great Lakes and Ohio Valley with an area Low pressure developing along the front.

Today

Clouds will continue to increase head of the front.  It will take a little while for the dry air ahead of the front to moisten up. But by Mid Afternoon the rain will becoming much steadier over central parts of the region. Out ahead of the front temperatures will be seasonably mild. The Widespread rain and thunderstorms will continue to advance east into the eastern parts of the region late afternoon into tonight. Some of these thunderstorms could be strong to perhaps severe.

The Storm Prediction Center (SPC) has a Marginal Risk for severe weather over Southwest Pennsylvania (including Pittsburgh), most of Maryland and Delaware.

 

Rain will be heavy at times, with a general, with 0.5" to 1.0" with high amounts possible of rain by tomorrow morning. These heavier downpours could lead to some localized poor-drainage flooding on the roadways.

Temperatures will become much cooler behind the front.

 Tomorrow into the Weekend.

 The rest of this week is going to stay chilly, breezy, and unsettled as this area of low pressure lingers overhead. Both Thursday and Friday will have scattered to isolated showers; as the low pressure slowly drifts east, with rain lessening west to east. This will be especially true for Thursday.  But later Friday through the weekend a trough with an upper-level low will approach and move in overhead, this will keep the weekend chilly and unsettled. With the chilly temperatures, northern parts of the region will likely experience some mixed precipitation, with the higher elevations seeing snow showers.  These weekend showers will be widely scattered, so many might not see them, but they could popup anywhere and anytime. On Sunday we’re going to see high pressure build in from Canada along with a stronger area of low pressure developing off the Middle Atlantic Coast. This area of low pressure will be drifting away during Monday, with rain showers over the northeastern Middle Atlantic, with scattered rain showers over New England, the rest of the region will be dealing with scattered rain showers. On Tuesday, low pressure and a cold front will be approaching and moving though. Bringing scattered rain showers to the region, rain could be rather heavy at times. Then for Wednesday high pressure will briefly move in, followed by another cold front and low pressure for Wednesday night into Thursday.   

 I hope y’all have had time to read part 2 of my hurricane outlook.

Have a great rest of your day.