Cold front passes through Tuesday
Here we are on April 20th, and I still can't quite declare winter over just yet. There is still plenty of cold air lurking to the northwest that will need to modify before we can say goodbye to the flakes for interior areas. The coastal plain is about done for the flakes after this storm. Frost will continue to be a possibility, however. The average last frost date for southern areas is May 1st, for northern areas May 13th. For those itching to plant, you can do so, but keep the covers on the ready just in case.
A cold front approaches the region Tuesday as low pressure over central Ontario moves northeast. Clouds will be on the increase in the morning, and showers over interior areas break out Tuesday afternoon. Along the front comes the energy associated with our next widespread event moving in on Wednesday.
Showers move into western areas by around mid-morning Tuesday and clear northern and eastern areas by early evening. There is a chance for a rumble of thunder as the cold front moves east in the afternoon. Southern areas may get a sprinkle or a spot shower, but that is about it.
High temperatures range from the 50s for the north and mountains to the 60s for the coast. Interior southwestern areas may get into the low 70s. Wind from the southwest shifting to the west after the frontal passage could bring gusts up to 30 mph before briefly settling Tuesday night.
Another spring mixed bag event on the way
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Penn State '21
AMS / NWA