*** WINTER STORM EXPECTED FOR DELMARVA SUN-TUES / FIRST CALL FORECAST ***
Alright ladies and gentlemen, for what seems like a eternity, a winter storm storm has it’s eyes on areas of Delmarva later this weekend to the start of the new work week. A mixture of heavy snow, ice, and even rain for portions of the peninsula and surrounding regions. Let’s give the run down on my current thoughts and the nightmare of a forecast this is turning out to be.
With the current thinking, many areas across Central and Northern Delmarva are in for one of the largest storms we have seen since Jan 29th 2022 with several inches of snowfall in the forecast. One of the most frustrating aspects is dealing with the typical battleground we see here on the shore with the mixing of ice and rain on the southside. Let’s go through the model suite now that the midday runs have come into play.
Let’s first start off with the GFS model which has been the biggest push north in the overall mixing battle ground up to the Kent/Sussex county line. Significantly dropping totals from areas south of Milford Delaware to a light 1-3 inches. But absolutely crushing areas from Dover on northward with some blends up to a foot. The other American Model the NAM has been slightly cooler solution with mixing up to Georgetown. Widespread areas of 4-8 in with this solution with 0.10-0.20″ of ice. These two models have been the warmest and most north of the spread.
Now lets get to more southerly solutions which includes the ICON/CMC/UKMET/ECMWF. The UKMET & ECMWF have been extremely consistent keeping the colder air in place for the duration of this storm for many days now. And from a statistically aspect, these have the highest performing verification in this medium and short term range. The overall axis of heaviest snow with these solutions keeps it between Smyrna through Salisbury with on average 4-8 inches with locally higher amounts. Mixing pushed farther south of Salisbury and more snow for areas of the southern shore. ICON/CMC did trend south toward these solutions today as well.
And one last blend is well the super blended model known as the NBM (National Blend Of Models) which takes in the consideration of many different solutions with a blend together. Here is a loop of the last several solutions where you see the trend north and then the trend back south again. So you see where the difficulty sets in.
With that said for now I’m doing a blend between the both north and south solutions. I do worry about mixing up to areas of the mid shore for the warmer mid level temperatures with these kinds of storms. And with the lack of a high pressure to the northeast to lock the cold air in makes it very difficult for a all over region snow event. Even being within 54-72hr time from storm moving in we still have these battles to deal with. There will likely be changes with the snowfall forecast going forward until we get into the 24-48 hour range. Keep checking back for updates as this winter storm unfolds.