Yeah, was thinking the same thing. The atmosphere at this time of year tends to be colder than it would be later in spring and certainly in summer, but you also don't have the magnitude of vertical acceleration that you can get later in the spring or summer. With how that supercell was cranking though, wouldn't be surprised if it locally altered the environment.

Few days ago...it looked like northern areas would see snow today. It is 42F and raining. I have no hope for Friday.

That'll leave a mark!! My goodness thats massive...can you imagine the amount of wind energy required to keep that ice up in the clouds???

Oh. My. God.

Our low level thermo profiles w/ onshore flow seem to break the boundary layer schemes. Tim’s rule about southerly flow seems to hold true 99% of the time. Also the GFS has been trash ever since the shift to the FV3 core in mid-2019. The Feb 2019 event was the last time it was semi-useful for lowland snow.