Our spring like warmth is going to come to a crashing end in the next 48 hours but first there’s a rain storm to deal with.
We see a pretty organized storm system heading into the Great Lakes , the low is going north and east into Canada but the associated cold front extends down to the Gulf of Mexico with a long line of moderate to heavy rain and thunderstorms along it, this will come east tonight into tomorrow
First we will see scattered showers fill in from Southwest to northeast late tonight which will turn into steady rain tomorrow morning, very early morning for interior areas like eastern PA then mid morning for coastal areas of NJ and Long Island , we will also see increasing southerly winds and as a result lows only will fall into the 40s area wide, low 40s NE PA mid 40s along the coast
The rain will be heavy at times with even some imbedded weak thunderstorms so don’t be surprised to see some flashes of lightning and hear some thunder tomorrow afternoon
Rainfall totals of 0.50-1.50 are expected with half-inch more likely in southern areas like Delaware and 1.50 more likely in northern areas like NW NJ and NE PA , some minor flooding will be possible because of recent snow melt and a very saturated ground and there could be minor coastal flooding with an increasing southeasterly wind but flooding shouldnt be too big a concern, just going to be a nasty day overall
Behind the cold front a deep trough will move into the eastern US, Wednesday temperatures will still be slightly above normal as cold air will be delayed, as to be expected this time of year as we step up to spring with highs in the mid 40s NE PA to low 50s along the coast .
Wednesday night cold air advection will come in full force with lows in the 20s NE PA to low 30s along the coast, highs only in the low 30s NE PA to upper 30s low 40s along the coast Thursday ad Friday with lows in the 20s most of the area besides the immediate coast where lows in the low 30s are expected, generally temperatures 5-10 degrees below average
We look to moderate to seasonable or just slightly below normal with highs in the upper 30s to low 40s NE PA to mid to upper 40s along the coast and lows in the 20s NE PA to low to mid 30s along the coast throughout the weekend with pretty nice conditions , although things may start becoming unsettled late on Sunday through early next week with temperatures remaining around or slightly below average but that will depend on a potential storm system which we wont know much about until at least Thursday .
Otherwise through the next 7 days we will be on a fairly wild roller coaster ride with temperatures especially the next 48 hours before a trough becomes more dominant over the east