ChescoWx

Some light sleet started here in East Nantmeal temp at 37.6 DP 30.6

Increasing clouds for today with rain arriving from south to north across Chester County by evening. There could be a brief mix with some snow or sleet at the start of the precipitation but any small accumulation should be well north of the county. Some models hint at a change back to snow tomorrow morning with some minor accumulations but I am skeptical. Otherwise a 1 day break on Tuesday before snow arrives on Wednesday morning. The NWS sees most of Chester County at least starting as snow on Wednesday with some accumulations possible before any change to rain later on Wednesday. Quieter weather to finish out the week with slightly above normal temps continuing. The record high for today is 72 degrees way back in 1906. The record low was 14 below zero in 1984. Daily precipitation record and snow record are from 1987 when 12.8" of snow fell with a water equivalent of 1.47"

A wintry WXSIM forecast for this week - snow or ice mentioned every day but Tuesday! XSIM text forecast for East Nantmeal, initialized at 2:00 PM Jan 21, 2023 _______________________________________________________________________________ This afternoon: Partly cloudy. High 40. Wind north around 2 mph. Tonight: Fair in the evening, becoming partly to mostly cloudy after midnight, with areas of light frost likely. Low 28. Wind northwest near calm in the evening, becoming south after midnight. Sunday: Mostly cloudy in the morning, becoming dense overcast in the afternoon. A chance of a mix of rain, snow, and sleet in the afternoon. High 41. Wind south around 3 mph in the morning, becoming 7 mph in the afternoon. Chance of precipitation 50 percent. Precipitation (liquid equivalent) mostly less than a quarter of an inch. Little or no snow or ice (on ground) accumulation expected. Sunday night: Dense overcast. Patchy light fog. A mix of rain, sleet, and snow likely in the evening, then a mix of rain and snow likely after midnight. Low 32. Wind southeast around 4 mph in the evening, becoming north-northwest after midnight. Chance of precipitation 80 percent. Precipitation (liquid equivalent) mostly around an inch. No snow or ice (on ground) accumulation expected. Monday: Dense overcast in the morning, becoming mostly cloudy to cloudy in the afternoon. Patchy light fog in the morning. A chance of a mix of snow, rain, and sleet in the morning, then a slight chance of snow in the afternoon. High 38. Wind chill around 28. Wind northwest around 8 mph, gusting to 17 mph, in the morning, becoming 12 mph, gusting to 20 mph, in the afternoon. Chance of precipitation 60 percent. Precipitation (liquid equivalent) mostly less than a quarter of an inch. No snow or ice (on ground) accumulation expected. Monday night: Fair to partly cloudy in the evening, becoming partly cloudy after midnight. Low 30. Wind chill ranging from 23 to 30. Wind northwest around 10 mph, gusting to 19 mph. Tuesday: Partly cloudy in the morning, becoming mostly cloudy to cloudy in the afternoon. High 43. Wind west around 11 mph, gusting to 21 mph. Tuesday night: Partly cloudy in the evening, becoming partly to mostly cloudy after midnight, with areas of light frost likely. Low 31. Wind west around 6 mph, gusting to 16 mph, in the evening, becoming near calm after midnight. Wednesday: Dense overcast. A chance of a mix of snow and sleet in the morning, then a mix of sleet, rain, and snow likely in the afternoon. High 36. Wind east around 3 mph in the morning, becoming 9 mph, gusting to 17 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 night: Dense overcast in the evening, becoming cloudy after midnight. Patchy light fog after midnight. Rain likely. Low 34, but temperatures rising after midnight. Wind chill ranging from 25 to 37. Wind east around 10 mph, gusting to 17 mph, in the evening, becoming southwest around 3 mph after midnight. Chance of precipitation 80 percent. Precipitation mostly around an inch.

Looking ahead my latest WXSIM forecast that now has the ability to mix in the EURO with the GFS and NAM has snow developing Monday AM the 30th with 5" on the ground by 12noon which is the end of the forecast period....seems like a lock to me!!

Models depicting "largest" Chester County snow week of the season to date!! snow totals by Wednesday evening below - buckle up!!

Today should be chillier but still above normal with temps in the upper 30's to near 40 today. Our next rain event starts later tomorrow PM. If the precipitation arrives early enough in the PM we could see some wet snow mixed in and of course a couple models still show a small measurable amount of snow before the change to rain. Of note the GFS model has the rain changing back to snow with a small accumulation across much of Chester County on Monday morning. The next rainstorm looks more likely to start as snow on Wednesday with some minor accumulations possible (but it would still be our "largest" snow event of the season if it comes to pass) Turning colder by the end of the work week with temps closer to normal. Our record high for today is 67 degrees way back in 1906. The record low is 11 below zero from 1987. Daily precipitation record is 1.88" from 1902 and the record daily snow is the 10.0" that fell today back in 2014.

12z NAM delivers our largest snowstorm of the season for Western Chester County....winter is back on!!!

Total rain from yesterday was 0.93". Today will turn windy with some sun but more clouds by PM. Tomorrow is on average the coldest day of the year...however this year we should reach well into the upper 30's to near 40 with partly sunny skies. Next rain event arrives on Sunday night into Monday AM. Otherwise another snow/rain chance by Tuesday night into Wednesday as our very active pattern continues. The record high for today is 67 degrees from 1951. Our record low is 8 below zero from 1984. Daily precipitation mark is 2.18" from 1979. The daily snow record is the 5.5" of snow that fell today back in 2000.

Korean Model to save winter Low off the coast.....uh still rains

Plowable snow event for the NW Philly burbs on the new NAM - no doubt this will verify!!

Up to 0.63" of chilly rain here today. In other news the 18z NAM continues to save the winter with a plowable event over much of the philly burbs!! What can go wrong with only 72 hours to go? Who else is firing up their snow blower??

Welp! my Tempest at the shore is now broken again (barometer) for the 4th time and the company wishes to send me a 5th unit in the last 13 months!! I told them no thanks as I have already spent over $600 for the first 4 roof installs. If anyone knows someone at the shore with a tall ladder who will snap the new unit in for free let me know? Thanks! Paul

Winter again saved by the Euro for the NW philly burbs!! "biggest" snow week of the winter so far!! 6" for East Nantmeal - lock it up!!

NAM delivers the largest snow event of the season and saves winter!!!

A chilly wet day on tap today across the area. As of 8am we had already received 0.15" of rain and look for another 0.25" to 0.50" during the day today. Tomorrow looks like the warmest day of the week with highs in the mid-40's. Slightly above normal temps should continue for the next 7 days. Of note this is on average the coldest 7 day stretch of the winter season across Chester County. It looks like we still could see some wet snow arriving on Sunday afternoon especially across the higher western spots in the county. This should change to a cold rain before ending toward midnight. Another storm could start as snow on Tuesday night before mixing with and changing to a cold rain before ending on Wednesday. The record high for today is 67 degrees set in 1951. Our record low occurred on what was also the coldest day in Chester County history with a high temperature of 1 below zero after a record AM low of 11 degrees below zero back on this date in 1994. Daily precipitation record is the 1.91" that fell in 1996. Record daily snow is the 13.0" that fell on this date in 1961.

GFS not so much....

German FTW!!

Snow begets snow....this pattern has not been doing much begetting - I will stick with a non-snow forecast till the pattern delivers

Storm #1 and Storm #2

I was living in KofP at the time and remember it was pouring rain and 21 degrees.....I was going out every hour to chop ice off my car

The WXSIM is on board with a major snowstorm only 1 week away!! Book it!! Wednesday: Dense overcast in the morning, becoming cloudy in the afternoon. Patchy light fog. A mix of snow, sleet, and rain likely in the morning, then a mix of snow and rain likely in the afternoon. High 36. Wind chill around 27. Wind northeast around 8 mph, gusting to 16 mph, in the morning, becoming northwest in the afternoon. Chance of precipitation 80 percent. Precipitation (liquid equivalent) mostly between 1 and 2 inches. Snow or ice (on ground) accumulation 6 to 10 inches. Maximum snow level 100 feet above ground.

Of note on January 19, 1994 the low at Coatesville was 11 below zero the high temperature only made it to 1 degree below zero - this is the only time since 1894 that the high temperature stayed below zero.

Cloudy and very mild for mid January today with highs in the upper 40's. A rainy day on tap tomorrow with up to 3/4 inches of rain possible. We chill down to closer but still above normal temps for the weekend with the chance of snow arriving later Sunday quickly changing to rain. Another chance of at least some wintry weather is possible later next Wednesday. Our record high for today is a springlike 66 degrees today back in 1973. The record low was 4 below zero from 1994. Record precipitation is the 1.15" from 1915. Our daily snow record is the 6" today in 1930.

A chance of some light rain today with highs in the low 40's our normal high is 36.8. We should see temps stay above freezing till Friday night. Tomorrow looks like the warmest day of the week with our high maybe touching 50 degrees. Thursday looks like a wet day with maybe 0.75" of rain possible. Dry and a bit cooler but still above normal by the weekend. The record high for today is 65 degrees from our only snowless winter of 1973. Record low is 13 below zero today in 1982. The daily precipitation record is 1.83" from 1994. Record snow is the 6.0" that fell today in 1978.