ChescoWx

Rippage in East Nantmeal 24.6 degrees

2.0" as of 930am here in East Nantmeal high fluff factor

Steady snow here in East Nantmeal since around 5am. We have already picked up a little over 1" of snow. The temp has slowly been falling and we are at 23.3 degrees.

0Z NAM similar to 18z with a 0.1" increase actually at KMQS....

If I was making a forecast - I like flurries by 1am and 0.3" here in East Nantmeal by 8am with the snow tapering off tomorrow evening after a total snow accumulation of 3.9" here in NW Chesco

Love the precision!! Keep up the great post....winter will return a little sooner than me thinks some folks expect

Tonight Snow likely, mainly after 5am. Cloudy, with a low around 24. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible. Friday Snow. High near 29. Northeast wind around 5 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible. Friday Night A chance of snow, mainly before 10pm. Cloudy during the early evening, then gradual clearing, with a low around 12. Wind chill values as low as zero. Northwest wind 10 to 15 mph. Chance of precipitation is 30%. New snow accumulation of less than one inch possible. Saturday Areas of blowing snow. Partly sunny, with a high near 22. Wind chill values as low as zero. Blustery, with a northwest wind 10 to 20 mph, with gusts as high as 35 mph. Saturday Night Areas of blowing snow. Mostly cloudy, with a low around 13. Blustery, with a northwest wind 15 to 20 mph.

Only for counties that may be impacted by the IVT

...WINTER STORM WARNING IN EFFECT FROM 4 AM TO 10 PM EST FRIDAY... * WHAT...Heavy snow expected. Total snow accumulations of 5 to 6 inches. * WHERE...Portions of northern Delaware, southern New Jersey and southeast Pennsylvania. * WHEN...From 4 AM to 10 PM EST Friday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the morning or evening commute. * ADDITIONAL DETAILS...Temperatures will rapidly drop into the teens late Friday night. Any untreated roads will become icy and dangerous.

It's amazing how many folks are weather nerds - I was asked to do a write up on the Norlun Trough yesterday on the FB page - non nerds want to know!!! I have welcomed almost 300 people since yesterday and the chatter has been nonstop over there! As our friend Ben Franklin said "some are weatherwise and some are otherwise"

Whatever happened to DT? I used to enjoy arguing with him....did not take much before he started to drop the f bombs....good times!

That last run of the 3km NAM makes be think that red circle will come in further south then that....we shall see - it will probably move further north again next run

If I was making a forecast that sounds solid in my view.....but what do I know!!

Latest 3km NAM now brings the enhanced band to south of the M/D line - in line with what Bernie Rayno predicted yesterday

I have also seen in these situations some enhancements as moisture is lifted into the modest hills as you move N and W of the fall line - glad I am not a professional forecaster. Feel like trying to predict exact t-storm totals....

HRRR 3km aligns has modeled relative highest snow totals running from NW Chester County over to Central NJ

Based on latest SREF potential for 3" or more highest probabilities run across much of NW Chester County - Montgomery County and over to Central NJ. With a pretty quick reduction in % chances as you get up to the Lehigh Valley and over to NW NJ

Temperatures have started to rebound across the area with clouds on the increase after a low of 14 degrees at 330 this morning. A cloudy day today with temps remaining below freezing across most of Chester County for the 4th consecutive. The below freezing streak looks to continue across the area until Monday at the earliest. Light snow should arrive toward daybreak tomorrow and continue much of the day tomorrow. Snow totals should range from 2" to 4" across SW Chester County to 3" to 5" as we move NE through Chester County and into Montgomery and Bucks counties. We could see a little blowing and drifting snow later Friday night into Saturday and temps will struggle to get much above the teens with wind chills near or below zero. A warming trend gets underway next week as we get our January Thaw. Records for today: High 66 (1973) / Low 4 below (1994) / Rain 1.15" (1915) / Snow 6.0" (1930)

Temperatures have started to rebound across the area with clouds on the increase after a low of 14 degrees at 330 this morning. A cloudy day today with temps remaining below freezing across most of Chester County for the 4th consecutive. The below freezing streak looks to continue across the area until Monday at the earliest. Light snow should arrive toward daybreak tomorrow and continue much of the day tomorrow. Snow totals should range from 2" to 4" across SW Chester County to 3" to 5" as we move NE through Chester County and into Montgomery and Bucks counties. We could see a little blowing and drifting snow later Friday night into Saturday and temps will struggle to get much above the teens with wind chills near or below zero. A warming trend gets underway next week as we get our January Thaw. Records for today: High 66 (1973) / Low 4 below (1994) / Rain 1.15" (1915) / Snow 6.0" (1930)

agreed! That's why I like the 3k more than the 12k NAM

NBM creeping up though...

3km NAM says it's 12km brother has been drinking....let's cut those figures in half!!

NBM

18z ICON

18z Euro