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Everything posted by Tatamy
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Have to love the NAM. So entertaining. We’ve gone from this at 06z to close to 30” in spots in our area in 2 runs. I think it’s outdone itself.
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Water temps south of LI and east of NJ range from 36 - 38. This is close to the seasonal minimum and actually below normal. Coastal areas are in a different world as compared to early December (water temps then are usually still in the 50s) regarding ocean warmth being poised to flood inland.
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Looks just like the 06z GEFS
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06z NAM has zip. 06z Ukie has rain from the city south at 66 hours. It’s like these models are all in separate worlds.
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GFS AI brings 1 - 1.5” QPF across the area (less well N&W). It’s been showing a relentless push to the NW with higher precip amounts.
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This could require hurricane force wind warnings for the coastal waters. Tidal flooding would be a big problem with this scenario.
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No one seems interested in it…
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Have to careful with some of the real end outcomes coming out in the models. GDPS is calling for 30”+ for my area. In 2021 it did something similar (RDPS) only it called for 50” so there is an history with that model. Actual storm amounts ranged from 24-36” where I am.
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Early Monday morning 2/16 last minute event OBS/Discussion
Tatamy replied to The Iceman's topic in Philadelphia Region
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Storm total 2” on all surfaces.
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Been getting steady light to at times moderate snow here. 1.3” new OTG. 31/30
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Steady very light snow. 36/28. Expecting about an inch here.
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Do you know how to read and interpret a computer model?
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I am posting the 12z ensemble guidance below from the EPS, CMCE, and EPS AIFS. The EPS AIFS has actually been quite consistent with its precip field in recent runs.
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Places north and west could do okay however it’s borderline near the coast. Interesting run.
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That visibility there is 1/4 to 3/8 mile so this is moderate to heavy snow that has been falling there for most of the afternoon.
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I am surprised that there is not ice on LI Sound. Last time that I saw that was February 1979 during the week prior to PD1.
