Current surface chart Radar And infrared satellite image.
Today
We have high pressure in control over head. Temperatures are very mild with just a few very isolated rain showers. These temperatures are going to continue to warm as we go through the afternoon. We do have that nearly stationary boundary setting to our north. This is going to cause some mischief for tomorrow. That approaching cold front Shows up very well On the infrared satellite image. Today this cold front Is going to lead to severe weather out over the midwest and Ohio Valley. There is a chance that some of these stronger storms make it into western parts of New York State and Pennsylvania.
Looking at the 24 hour temperature change from Penn State's E-wall. We can see temperatures today are much warmer than they were even yesterday But we can also see that cold air is right on our doorstep.
Today's severe outlook
Wednesday
Tomorrow as that strong cold front approaches. We are going to be Very warm Along with a noticeable increase in humidity ahead of that approaching cold front. Rain will be moving west to east into Western and northern New York state, Pennsylvania. and northern New England. Along with this There will be the risk for thunderstorms Some of these will be strong to severe. The SPC has a Slight Risk for severe weather over a large part of Pennsylvania, Maryland ,Delaware and most of New Jersey. There is a Marginal Risk for severe weather over northeast Pennsylvania and northern New Jersey. As well as into southwest New York State. The risk will be the possibility of damaging winds, frequent lightning and hail There was also the possibility for a few isolated tornadoes to developed. We will have to watch and see if the line of thunderstorms develop a bow echo which would increase the risk for damaging winds.
Tomorrow's severe outlook
Rain will be locally heavy at times, With a chance for a bit of a mix over far northern New York State and northern New England. The actual cold front will come through the region Late Wednesday night night Into Thursday. As the front comes through We will see Moderate to heavy rain move across the region west to east. Behind the front Much cooler air than we've seen the last few days will move into the region. The cold coming in is going to be seasonal to slightly lower than average for this time of year. With the cold Rain will change over to some snow For most there won't be any accumulation as the ground is very warm. Are over parts of New York State into northern New England a minor accumulation of snow will be possible. This Will be especially true in the higher elevations As that air moves over the Great Lakes Some lake affects snow is likely to develop. There will be a chance for some ice accretion across far northern New York State, far northern Vermont and New Hampshire. As well as northern Maine Wednesday night into Thursday.
On Friday high pressure will be moving through the region across the region. Then for later Friday into Saturday, we will see a clipper move across Southeast Canada. As this trough come through. there be a chance for snow showers a mix across northern Pennsylvania New York State into northern and central New England and rain showers for those southern areas.
