Todays 12 Z ECM continues to stand in stark contrast to the GFS. The GFS is about 6-8 mbs deeper with the low pressure area compared to the ECM… its also about 200 miles further to the North. The GFS is also about hrs faster then the ECM.
To sum things up on the 12 Z ECM ..850s are cold enough to support snow. Surface temperatures are also cold enough to support snow. Temperatures are in the 20s essentially thru out the storm with some teens as well in the overnight period. Time frame looks to be monday into tuesday afternoon/evening. This would be snow in the North and west of the major cities as well as snow in the major cities such as KPHL and NYC.
Again to be clear this is not a forecast but a discussion about what the ECM showed verbatim!
We will continue to monitor this potential event…it appears as if we may be the only source talking about this right now. Stay tuned!
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