Right Weather Pro

Pro Update: Midweek Meteorological Bomb

In a way this storm reminds me of Sandy. Not because of the impact (hopefully) in the United States, but because we have talked about it for a LONG time. You may remember we first mentioned this storm during last Monday’s Long Range Forecast. It has looked like a meteorological (nuclear) bomb for a few days, and the models are not backing off their predictions of a sea level pressure similar to a strong category three hurricane. We are playing with a blow torch, indeed.

This is a forecast that could change considerably in the next 24 hours. Most recent runs of the Canadian global and NAM hi-res model shifted west, with a bigger impact in SNE than they were forecasting in the past few runs. The 18Z NAM predicts 5-6″ of snow in Providence, 10″ in New Bedford, and 12-20″ on Cape Cod, with the potential for hurricane-force wind gusts on Cape Cod and the islands!

18Z NAM with its highest snow forecast yet. More than a minor impact for SE RI and Buzzards Bay. A major blizzard on Cape Cod.
18Z NAM with its highest snow forecast yet. More than a minor impact for SE RI and Buzzards Bay. A major blizzard on Cape Cod. The model has been very inconsistent in handling this storm. We’ll see what it shows tonight.
18Z Hi-Res NAM with wicked strong winds on Cape Cod. Sustained winds of 70 mph less than 1000' off the ground. Hurricane-force gusts would happen if this scenario pans out.
18Z Hi-Res NAM with wicked strong winds on Cape Cod. Sustained winds of 70 mph less than 1000′ off the ground. Hurricane-force gusts would happen if this scenario pans out.

Thankfully, the ECMWF stayed solid with a track that has some impact, but not an overwhelming one, in RI, and a blizzard for Cape Cod and the islands. That has been our prediction from the start, and, even though we nudged our snow forecast totals down a bit (partly out of boredom?), the first map may be closer to correct than the most recent map, but we’re not going to start bouncing back and forth every few hours to split hairs on 2-4″ and 3-6″ forecasts. If tonight’s runs call for a change, we’ll make it.

Right Weather - Snow Forecast
Right Weather – Snow Forecast

EPS suite is well east of Nantucket, but close enough to bring more than 6" of snow and near  70 mph wind gusts
EPS suite is well east of Nantucket, but close enough to bring more than 6″ of snow and near 70 mph wind gusts to Cape Cod and the islands
The EPS mean snow forecast is not far from our prediction
The latest EPS mean snow forecast is not far from our prediction

Fred Campagna

President and Chief Meteorologist - Right Weather LLC AMS Certified Consulting Meteorologist #756 AMS Certified Broadcast Meteorologist #126

Related Articles

Back to top button