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(T. F. “Storm” Walsh III)
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Good day everyone!
Upon analyzing global models this morning, there doesn’t appear to be any significant modification in temperatures during the next 72 hours, with the majority of the coldest air remaining confined to the northern 3/4 of CONUS. By day 4 (96-102 hours), colder air once again begins to push south, with mid to upper 30’s once again extending into portions of the FL. Panhandle., with some isolated low 30’s. Based on model animations, this cold blast should begin to modify, with clod air beginning to retreat northward by day 5-6 (120-132 hours) with a decent warm up in the south-central plains and along the Gulf coast with warmer temperatures over the FL. Peninsula.
Areas over the NE and New England regions currently receiving snow and winter precipitation, should begin to see clearing in approximately 12-18 hours, with more snow forecast to fall over the Great Lakes / Ohio valley region within the next 24 hours, with snow pushing into NY and PA by late Tues. afternoon, with another round of possible heavier snow forecast for Thurs/Fri time period. As this latter event occurs , a series of low pressure systems will move northward, well offshore, with the most powerful rolling NNE, east of Nova Scotia at around 102 hours in the forecast period from 12Z this morning . This low is forecast to bring 35-40 kt winds well off shore, and close to the Gulf of Maine, along with high seas.
The following are projected sustained winds and sea heights from the StormSurf WaveWatch site. Just click the map for the animation.
I recommend mariners use the following Atlantic Offshore Forecast map, which is linked.
The following are forecast snowfall accumulation maps for the next 5 days (120 hours in the period) from the GFS, ECMWF, and F5 DATA (utilizing GFS data).
I will try to have another update on Wed. sometime if time allows. I work tomorrow, and Thu.-Sat.
Have a blessed day!
T. F. “STORM” WALSH III
GMCS, USCG (ret)
METEOROLOGIST / HURRICANE SPECIALIST /SEVERE WEATHER SPECIALIST
MEMBER WEST CENTRAL FLORIDA AMS