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E PA/NJ/DE Winter 2022-2023 OBS Thread


Ralph Wiggum
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7 minutes ago, JTA66 said:

29F/DP 23F with rain in the way. What a horrible hobby this is.

That may turn out to be a unique record-breaking bomb cyclone.  As it is, this is just the first month of met winter and historically the snow was more a January-February (peak winter) thing.  In fact recently, we have been getting more in March too as if we were in Colorado. :wacko:

I made it up to 39 today after a low of 25 and it's currently 30 with a dp that has slowly crept up this afternoon from the low 20s to 24.

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URGENT - WINTER WEATHER MESSAGE
National Weather Service Mount Holly NJ
833 AM EST Thu Dec 22 2022

PAZ054-055-060>062-221800-
/O.NEW.KPHI.WW.Y.0019.221222T1333Z-221222T1800Z/
Carbon-Monroe-Berks-Lehigh-Northampton-
Including the cities of Jim Thorpe, Stroudsburg, Reading,
Allentown, Bethlehem, and Easton
833 AM EST Thu Dec 22 2022

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...

* WHAT...Snow mixed with sleet and freezing rain. Snow
  accumulations of up to one inch with up to a couple hundredths
  of an inch of ice accretion.

* WHERE...Carbon, Monroe, Berks, Lehigh and Northampton.

* WHEN...Until 1 PM EST this afternoon.

* IMPACTS...Plan on slippery road conditions. The hazardous
  conditions could impact the morning commute.

* ADDITIONAL DETAILS...A brief period of snow mixed with sleet and
  freezing rain is expected this morning before precipitation
  changes to all rain from south to north by early this afternoon.
  Up to an inch of snow could fall in the southern Poconos while
  farther south any snow accumulation today should be a half inch
  or less. However most locals within the advisory area could see
  a very light glaze of freezing rain.
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7 minutes ago, Newman said:
URGENT - WINTER WEATHER MESSAGE
National Weather Service Mount Holly NJ
833 AM EST Thu Dec 22 2022

PAZ054-055-060>062-221800-
/O.NEW.KPHI.WW.Y.0019.221222T1333Z-221222T1800Z/
Carbon-Monroe-Berks-Lehigh-Northampton-
Including the cities of Jim Thorpe, Stroudsburg, Reading,
Allentown, Bethlehem, and Easton
833 AM EST Thu Dec 22 2022

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...

* WHAT...Snow mixed with sleet and freezing rain. Snow
  accumulations of up to one inch with up to a couple hundredths
  of an inch of ice accretion.

* WHERE...Carbon, Monroe, Berks, Lehigh and Northampton.

* WHEN...Until 1 PM EST this afternoon.

* IMPACTS...Plan on slippery road conditions. The hazardous
  conditions could impact the morning commute.

* ADDITIONAL DETAILS...A brief period of snow mixed with sleet and
  freezing rain is expected this morning before precipitation
  changes to all rain from south to north by early this afternoon.
  Up to an inch of snow could fall in the southern Poconos while
  farther south any snow accumulation today should be a half inch
  or less. However most locals within the advisory area could see
  a very light glaze of freezing rain.

From Mt. Holly -

Temp still creeping up here and I'm currently at 35 with dp also up to 31.  I had just popped out about 20 minutes ago and have virga over me but you could almost feel and breath the chilled mist in the air!

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The NWS has issued a Winter Weather Advisory for Western Chester County (not Eastern Chesco) for this morning till 11am. We have some light freezing rain falling here now in East Nantmeal Twp. with a temperature at 30.9 degrees. This should change to plain rain over the next couple of hours. Plenty of rain on the way with over 2" falling before the cold front passes later tomorrow. That front should briefly turn the rain over to snow before ending. Some models still show a minor accumulation with the exception of the GFS which shows up to a couple of inches in spots across the County, Either way temps will tumble from near 50 in the morning to near 10 degrees by tomorrow evening.
The record high for today is 64.7 from 2013, The record low is 1 below zero set in 1960. Record rain is the 1.63" from 1983. Our record snow is the 5.8" that fell today in 1908.
image.png.d74d89d8fe761b48f6e6fb79826c5e27.png
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My Upper Darby sis texted about 5 minutes ago about getting some sleet so some of the yellows on the radar may be ip.  I have droplets on the walk, so must have had a drive-by bunch of splats of something (it wasn't actively doing anything when I popped out to investigate).  Temp is 36 with dp 32.

ETA - my Wyndmoor sis texted to say she had some sleet so since I'm a couple miles SE of her, my spats may have been ip-related although I seem to doubt it as she is at the bottom of a rolling hill (I am actually "above" her in elevation) and she always runs colder than me as the cold air will drain down and settle along her location.

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Since yesterday we have recorded 0.97" of rain here in East Nantmeal with 0.14" since midnight. We have already reached our high for the day as an initial cool front passed through earlier this AM. The high was 55.4 at 2:51am we have now dropped over 13 degrees to 41.9 as of 838am. The actual arctic front still looks on tap to pass through the county from west to east during the 10 am hour. We should see briefly heavy rain turn to snow which could last for a couple of hours before ending. The latest HRRR short range model still shows some spots in Western Chester County picking up a quick inch of snow. Either way it shows temps falling into the teens by 1pm and the single digits by 7pm this evening.
The record high today is 65.3 set back in 2015. The record low is zero set in 1960. The daily rain record is 1.41" set in 1907. The record snow for today is the 6.2" that fell today back in 1963.
image.png.e8f42f312d3f3ef5c98ea5bafbefbfcf.png
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