ChescoWx

No doubt this will happen....WXSIM went off the deep snow end with the 6z models - says 20" or more on Wed....the actual amount of snow it forecasts on the ground by Thursday AM is 29.3" Monday: Dense overcast. Patchy light fog. A mix of rain and snow likely in the morning, then a mix of rain, sleet, and snow likely in the afternoon. High 37. Wind northeast around 2 mph in the morning, becoming north around 6 mph in the afternoon. Chance of precipitation 80 percent. Precipitation (liquid equivalent) mostly around an inch. Snow or ice (on ground) accumulation about an inch. Wednesday: Cloudy in the morning, becoming dense overcast in the afternoon. A slight chance of snow in the morning, then snow likely in the afternoon. High 32. Wind chill around 22. Wind east-northeast around 6 mph, gusting to 16 mph, in the morning, becoming 12 mph, gusting to 21 mph, in the afternoon. Chance of precipitation 80 percent. Precipitation (liquid equivalent) mostly between half an inch and one inch. Snow accumulation 4 to 6 inches. Wednesday night: Dense overcast, with areas of light frost likely. Snow likely. Breezy. Low 28. Wind chill as low as 18. Wind east around 14 mph, gusting to 22 mph, in the evening, becoming north-northeast after midnight. Chance of precipitation 80 percent. Precipitation (liquid equivalent) mostly around 3 inches. Snow accumulation 20 inches or more.

Latest WXSIM with 18z data up to 6" to 10" on Wednesday - just flurries on Monday at this point Wednesday: Dense overcast. Snow likely. High 33. Wind chill around 24. Wind northeast around 11 mph, gusting to 20 mph. Chance of precipitation 80 percent. Precipitation (liquid equivalent) mostly around an inch. Snow accumulation 5 to 8 inches. Wednesday night: Dense overcast in the evening, becoming cloudy after midnight. Patchy light fog after midnight. Snow likely in the evening, then a slight chance of snow after midnight. Low 28. Wind chill as low as 22. Wind northeast around 10 mph, gusting to 20 mph, in the evening, becoming 6 mph after midnight. Chance of precipitation 70 percent. Precipitation (liquid equivalent) mostly around a quarter of an inch. Snow accumulation 1 to 2 inches.

WXSIM timetable for potential snow event on Wednesday the 16th for Western Chester County PA Snow arrives by 930am temp 31.5 Heavy Snow by 10am temp 30.2 Moderate Snow at 4pm temp 31.7 with 5" to 6" of snow so far Snow winding down by 10pm with total accumulation of 6" to 8"

Some elevation will help....

Still snowing lightly 0.3" with our 2nd "winter" event of the season - now 0.6" for the season still 2.6" below normal through today

With prospects low for many significant snowfalls this upcoming non-winter - what are the top 10 days that average the most snow here in Western Chester County PA? 1) January 7th / 2) January 26th / 3) January 25th / 4) February 16th/ 5) January 23rd / 6) December 5th / 7) February 23rd / 8) February 3rd/ 9) February 10th and 10) January 21st

Assuming you mean the data collection from surrounding stations for forecasts? As I assume you are analyzing your own IMBY data? I ordered one from Amazon arrives Thursday! I will compare it to my VP2 and Ambient stations + how it compares the forecast to my old WXSIM forecast

Hi Jimmy thanks! Where and how did you mount it? How accurate have the IMBY forecasts been? Does it use the EURO as a base forecast? Thanks again!

https://weatherflow.com/tempest-weather-system/

AM low 31.6

WXSIM text forecast for East Nantmeal, initialized at 10:00 AM Dec 5, 2020 _______________________________________________________________________________ This afternoon: Partly to mostly cloudy. Breezy. High 44. Wind northwest around 13 mph, gusting to 21 mph. Tonight: Fair to partly cloudy in the evening, becoming mostly clear after midnight. Patchy light fog. Low 24. Wind chill ranging from 16 to 30. Wind northwest around 10 mph, gusting to 19 mph. Sunday: Mostly sunny. Patchy light fog in the morning. High 36. Wind chill ranging from 15 to 29. Wind northwest around 9 mph, gusting to 17 mph. Sunday night: Partly cloudy in the evening, becoming mostly cloudy after midnight, with areas of light frost likely. Low 24. Wind northwest around 4 mph. Monday: Partly to mostly sunny in the morning, becoming sunny in the afternoon. High 37. Wind chill ranging from 19 to 30. Wind northwest around 7 mph, gusting to 17 mph. Monday night: Clear, with areas of light frost likely. Low 24. Wind chill ranging from 15 to 25. Wind northwest around 8 mph. Tuesday: Sunny. High 40. Wind northwest around 8 mph, gusting to 17 mph. Tuesday night: Clear, with areas of light frost likely. Low 24. Wind north-northwest around 6 mph. Wednesday: Partly to mostly sunny in the morning, becoming partly to mostly cloudy in the afternoon. High 42. Wind north-northwest around 5 mph in the morning, becoming west in the afternoon. Wednesday night: Partly to mostly cloudy in the evening, becoming partly cloudy after midnight, with areas of light frost likely. Low 28. Wind southwest around 4 mph. Thursday: Partly to mostly sunny in the morning, becoming sunny in the afternoon. High 47. Wind west-southwest around 6 mph, gusting to 15 mph. Thursday night: Clear in the evening, becoming mostly clear after midnight, with light to moderate frost. Low 25. Wind west around 2 mph. Friday: Partly cloudy. Relatively mild. High 49. Wind south-southwest around 3 mph. Friday night: Mostly cloudy in the evening, becoming dense overcast after midnight, with scattered light frost possible. Low 34. Wind northwest near calm in the evening, becoming north after midnight. Saturday: Dense overcast. A slight chance of rain in the morning. High 41. Wind east-northeast around 5 mph. Chance of precipitation 30 percent. Precipitation mostly less than a tenth of an inch. Saturday night: Dense overcast. Low 39. Wind east around 6 mph. Sunday: Dense overcast. High 43. Wind east around 6 mph. Sunday night: Dense overcast. Low 40. Wind east around 6 mph.

1.09" storm rainfall total

and 6z even less...

0z Euro still paints up to a couple inches of snow at the tail end for some of the higher spots of Western Chester County

WXSIM text forecast for East Nantmeal, initialized at 8:00 AM Dec 3, 2020 _______________________________________________________________________________ Today: Mostly sunny in the morning, becoming partly to mostly sunny in the afternoon. High 45. Wind west around 5 mph. Tonight: Mostly cloudy in the evening, becoming partly to mostly cloudy after midnight, with scattered light frost possible. Low 29. Wind southwest around 5 mph. Friday: Partly to mostly cloudy in the morning, becoming cloudy in the afternoon. A chance of rain in the afternoon. High 47. Wind southwest around 4 mph. Chance of precipitation 30 percent. Precipitation mostly less than a tenth of an inch. Friday night: Dense overcast. A chance of rain in the evening, then rain likely after midnight. Low 36. Wind southwest near calm in the evening, becoming northeast after midnight. Chance of precipitation 80 percent. Precipitation mostly between half an inch and one inch. Saturday: Dense overcast. Rain likely. Breezy. High 40. Wind north-northeast around 12 mph, gusting to 20 mph, in the morning, becoming 16 mph, gusting to 22 mph, in the afternoon. Chance of precipitation 80 percent. Precipitation mostly between 1 and 2 inches. Saturday night: Partly to mostly cloudy in the evening, becoming clear after midnight, with areas of light frost likely. Breezy. Low 31. Wind chill ranging from 23 to 29. Wind north-northwest around 13 mph, gusting to 22 mph. Sunday: Sunny. High 39. Wind north-northwest around 9 mph, gusting to 20 mph. Sunday night: Fair to partly cloudy in the evening, becoming fair after midnight, with moderate to heavy frost. Low 28. Wind northwest around 4 mph. Monday: Partly cloudy in the morning, becoming partly to mostly sunny in the afternoon. High 37. Wind chill ranging from 24 to 31. Wind west-northwest around 6 mph. Monday night: Clear, with moderate to heavy frost. Low 27. Wind chill ranging from 19 to 28. Wind west-northwest around 7 mph, gusting to 15 mph. Tuesday: Sunny. High 39. Wind west-northwest around 8 mph, gusting to 17 mph. Tuesday night: Clear in the evening, becoming mostly clear after midnight, with moderate to heavy frost. Low 27. Wind chill ranging from 20 to 30. Wind west-northwest around 6 mph. Wednesday: Partly cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. High 40. Wind west-southwest around 10 mph, gusting to 19 mph. Wednesday night: Mostly cloudy to cloudy in the evening, becoming fair to partly cloudy after midnight, with areas of light frost likely. Low 31. Wind chill ranging from 24 to 31. Wind west around 10 mph, gusting to 16 mph. Thursday: Sunny. High 45. Wind west-northwest around 8 mph, gusting to 16 mph. Thursday night: Clear, with light to moderate frost. Low 28. Wind west-northwest around 6 mph. Friday: Sunny. High 44. Wind west-northwest around 8 mph, gusting to 16 mph. Friday night: Clear, with light to moderate frost. Low 28. Wind west-northwest around 6 mph.

East Nantmeal Township – Chester County PA November 2020 Climate Summary Average High Temperature: 59.0 degrees (+6.2 above normal) Average Low Temperature: 41.1 degrees (+6.2 above normal) Monthly Average:50.06 degrees (+6.2 above normal) Highest Temperature: 76.2 on the 8th Lowest Temperature: 25.3 on the 19th Month Sub-freezing lows: 2 (11 below normal) Season sub-freezing lows: 3 (13 below normal) Month Sub-freezing days: 0 (1 below normal) Season Sub-freezing days: 0 (1 below normal) Rainfall: 5.30” (+1.56” above normal) YTD Rainfall: 50.80” (+5.70”above normal) Snowfall: none (1.3” below normal) Seasonal Snow: none (1.5” below normal) Climate Notes · This November finished as the 2nd warmest November in Western Chester County history since 1894 – only missing the warmest by 0.04 degrees with the 50.10 degrees the record value from November 1931 · 14 of the 30 days finished with readings over 60 degrees · 5 straight days were over 70 degrees with 3 straight daily record highs being set on the 8th (76.2) / 9th (74.9) and 10th (74.1) · The 5 days exceeding 70 degrees in November is tied for the 5th most such days behind the 8 days in 1975 / 7 days in 1896/1931 and 1990

0.3" of snow in East Nantmeal Township- our 1st measurable snow since the 2.0" on January 18th - December to remember....

Some very light mood flakes continue to fall in East Nantmeal temperature at 36.9