Sunday is going to be rough. Advisory snow from lake bands in the north. Advisory level wind everywhere. White outs as far as as 81. And some gusts north of 55 mph.
Pattern turns blustery behind the cold front late Saturday
night through Sunday. Wind gusts 30-40+ mph are definitely in
the cards with potential for advisory criteria. The increasingly
strong west-northwest flow will develop across the Great Lakes
and open up the potential for lake effect/upslope snow into the
interior of CPA Sunday afternoon through Sunday night.
Specifically, a multi-lake connected snowband or bands is
trending more likely to probable based on the latest higher res
model guidance extending from Lake Superior/Huron across Erie
into northwest PA. Probabilities are at least 50/50 for advisory
level snow accum especially in more persistent NW flow
trajectory bands. There may also be an emerging signal for some
squalls or very long fetch bands perhaps extending as far
southeast as the I-81 corridor.
We were keen to message the multitude of potential hazardous
weather concerns over the weekend in ranked order of confidence
(high to low):
-strong (non-tstm) wind gusts >40mph
-lake effect snow accumulation north of I-80 & west of US-219
-heavy snow bands or squalls
-strong thunderstorm wind gusts >50 mph