CTP discussion for tomorrow’s squalls…
.SHORT TERM /SUNDAY/...
A progged west-southwest flow should keep lake effect snow north of the border through Sunday. However, the passage of a
secondary cold front will likely be accompanied by a round of snow showers/squalls Sunday morning. High res models generate up to 150-200 J/KG Sunday morning (esp over and to the east of the Susq Valley during the midday hours), supporting the convective
snows. Low level convergence along the front, combined with
steep lower tropospheric lapse rates and some cape, argues for the potential of a linear snow squall band traversing the
northern counties between 10Z-14Z Sunday across the Western Mtns, and 14-18Z for the Central and Eastern Zones.
Will continue to strongly message the potential for these dangerous squalls on Social Media outlets and to our Public
Partners. Lingering, light upslope snow could last into Sunday PM over the Alleghenies. However, the focus for much of the
region will become gusty winds and an arrival of the coldest air
mass of this winter, with wind chills falling below zero by evening over the Allegheny Plateau.