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January 3, 2022 CAPE Storm Obs/Nowcast


WxUSAF
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the nam is obviously meant to key in on the heavier stuff and will overdo the precip amounts (and underdo the lighter stuff) while the hrrr jumps around all the over the place (and is at least partly driven by radar trends, if i remember correctly).  i gotta think a mix of the euro/gfs is the best strategy at this point, along with nowcasting.

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NEAR TERM /THROUGH MONDAY/...
-- Changed Discussion --

9:30 PM UPDATE: Latest surface analysis depicts that the cold front has pushed through the entire forecast area at this point, with cooler temps and drier air pushing in behind it. Low pressure is developing over the GA/AL border and moving in our direction tonight. In the wake of the cold front pushing through, the low pressure will begin to spread precipitation northeastward across the region starting late this evening and continuing into the early morning. Latest HRRR and NAM have continued a slight northwest shift. For this reason, updates are forthcoming to the forecast. Have decided to add eastern Loudoun County, VA into the Winter Storm Warning given this trend. QPF amounts have continued to trend upwards even into southern Baltimore, southern Harford, and Cecil counties in MD. However, uncertainty is still too high, so won`t be changing anything there for now headline wise

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4 minutes ago, CAPE said:

Have you hit 100 posts about the HRRR NW trend yet today? So odd the modeled heavy snow area hasn't reached Erie yet.

Well if it's moving NW run after run it don't have to be 200 miles to make a difference to many on the cutoff line and many on this not forum not in DC and Baltimore and who reside to the NW

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