10/23/14: Yet another slow moving system! On Oct 16th I wrote about the Slow moving ULL in Canada and the storm across U.S. Here we are again with a crawling system. This time it’s because of the Cut Of Low at 500mb that caught the storm.
Oct 20th A clipper came from Canada and transferred to this new coastal low that formed. Meanwhile the 500mb Closed low over PA on the 21st slowly rotated over this Delmarva storm.
Upper levels move slower than the surface so this vertically stacked NorEaster is moving slow! It’s one way to get a stalled scenario like this without a negative NAO (currently neutral).
Believe it or not this is the 4th storm to form near the Del Marva area including the weak ones. The last time we had a clipper transfer into a coastal in this area was 1/18/14.
Very interesting activity and very interesting speeds happening.
7:45am Surface Pressure from SPC showing the storm now 998mb. Chilly temps in the East with 40s down to pan handle of Florida and localized 30s in Georgia! 50s along the Northeast coast and near the surface low.
Amazing Satellite shot as the center sits about 100 miles off Nantucket!
And maybe something “brewing” for November 2nd time frame? Right now Canadian says no. GFS & Euro says yes, but the Euro doesn’t dig the trough as deep and just shows a clipper with snow for higher elevations in New England. GFS shows a coastal and digs the trough to the south and throws the white stuff down in Ohio valley and Northeast.. Euro has performed better last couple weeks.
~ By Ralph Fato