ChescoWx

Thanks Mike!! would have mentioned you too but was not sure you were on the forum. Take care Paul

Below is the sounding above KMQS Coatesville Airport at 7pm off the 12z Euro this appears to be the warmest hour on the model at 850mb previous 2 hours had some warmth at 700mb that looks like clearly IP to me. Does the below look like IP or ZR....I think it's close to ZR but mainly sleet - can our professional Mr. Newman weigh in? Thanks!

I remember it well! I was in KOP at the time....21 degrees with heavy ZR

Truth!

not a stupid question at all! minus 4 celcius- verbatim that would still be snow up at ABE - a little too close so I suspect sleet where it is minus 2 or higher

The latest NAM through 4pm with looking at how close the upper level temps are to freezing looks like sleet already at most spots across at least Chesco and up to close to Reading....but the damage has been done.

CAMS will be a great tool to see the mids warm. Below is the 6z NAM through 1pm

A significant winter storm begins toward midnight on Saturday night. Today should be our last relatively mild day for the rest of the month of January and into the start of February. Tomorrow we return to near normal temperatures with highs in the middle 30’s. An arctic cold front will cross the area later tomorrow afternoon temperatures will fall quickly to single digits above zero by midnight. Saturday will be very cold and breezy with highs only in the mid-teens. The snow arrives overnight and continues through at least 1pm on Sunday. By that point, most areas of Chester County could see between 6” to 8” of snow. At some point after that we should begin to see the snow mix with and change to sleet and freezing rain from SE to NW across the area This will cut into any additional potential snow accumulations. The final snow/sleet accumulation totals will depend on how fast this changeover occurs. Either way there will be plenty of snow and sleet accumulation. Unseasonably cold weather follows the storm with temperatures likely not rising above freezing for possibly at least the next 10 days.

A significant winter storm begins toward midnight on Saturday night. Today should be our last relatively mild day for the rest of the month of January and into the start of February. Tomorrow we return to near normal temperatures with highs in the middle 30’s. An arctic cold front will cross the area later tomorrow afternoon temperatures will fall quickly to single digits above zero by midnight. Saturday will be very cold and breezy with highs only in the mid-teens. The snow arrives overnight and continues through at least 1pm on Sunday. By that point, most areas of Chester County could see between 6” to 8” of snow. At some point after that we should begin to see the snow mix with and change to sleet and freezing rain from SE to NW across the area This will cut into any additional potential snow accumulations. The final snow/sleet accumulation totals will depend on how fast this changeover occurs. Either way there will be plenty of snow and sleet accumulation. Unseasonably cold weather follows the storm with temperatures likely not rising above freezing for possibly at least the next 10 days.

That is a great stat there!! thanks!!

Our best storms always have some non-snow in the mix.