4.5" here in the philly burbs of East Nantmeal as of 12noon with another 1.0" since 11am

Really disappointing trends. Looking forward to the next Cliff Synder video

NOAA: Much colder arctic air arrives Monday into Tuesday as the core of sub -20C 850mb temps pivot across the area. LREF ensemble probabilities indicate a 40-50% chance for 850mb temps to dip below -25C which is near the daily record minimum per SPC sounding climatology. Blustery conditions will accompany the frigid air mass as high pressure builds into the Ohio Valley, maintaining a stout gradient. Daytime soundings Monday have all the hallmarks of a classic snow squall setup: deep boundary layer mixing up to nearly 10 kft with steep low-level lapse rates, marginal SBCAPE, 30 to 40 kt wind, and supersaturation wrt ice and UVV within the DGZ. Snow shower generation within this environment is supported by synoptic height falls and PVA, low-level fgen, and moisture flux off Lake Michigan. SNSQ parameter above 1 confirms potential for near whiteout conditions at times. The signal for surface convergence suggests highest potential for squall activity will lie within the I- 94 to M-59 corridors. With the arctic air and persistent gusty WSW wind, wind chill falls below 0F Monday morning and stays below 0 through Tuesday night before rebounding on Wednesday as actual temp rises from the teens to the 20s. Monday night into Tuesday morning remains a target for potential Cold Weather Advisory issuance for parts of the area as low temps bottom out near 0F and wind chill approaches -15F. NAEFS and ECMWF ensemble data shows high confidence in longwave trough persistence over the Great Lakes through the week, favoring continuation of below normal temps despite the slight warm-up midweek. Signal is emerging for widespread snow on Wednesday with the next clipper passing through.

The trendz are not trending.

Frosty morning here. Actually feels like winter.