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E PA/NJ/DE Spring 2022 OBS Thread


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35 minutes ago, RedSky said:

18z GFS colder and a little southeaster :yikes:

The 18z GFS is throwing some wrap-around snow (showers) down to our arae as it departs.  The NAM still has much of that further N & W.

I did make it up to 53 as a high today but much of the day had a chilly breeze (although it was warm in the sun).  Currently 47, partly sunny and breezy as sunset approaches, with dp a now-drier 20.

floop-gfs-2022041718.prateptype_cat.conus-18z-animated-04172022.gif

floop-nam-2022041718.ref1km_ptype.conus-18z-animated-04172022.gif

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17 minutes ago, Hurricane Agnes said:

The 18z GFS is throwing some wrap-around snow (showers) down to our arae as it departs.  The NAM still has much of that further N & W.

I did make it up to 53 as a high today but much of the day had a chilly breeze (although it was warm in the sun).  Currently 47, partly sunny and breezy as sunset approaches, with dp a now-drier 20.

floop-gfs-2022041718.prateptype_cat.conus-18z-animated-04172022.gif

floop-nam-2022041718.ref1km_ptype.conus-18z-animated-04172022.gif

It wants to snow this April maybe a surprise ahead

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2 minutes ago, CoolHandMike said:

18Z GFS wants to give 7" total snow to central and northern Berks into Tuesday. LOL

In other news, I'll be wearing winter weather gear while doing some fieldwork early tomorrow morning. Yep, definitely getting 2020 vibes here.

Seems like many weeks in a row we've had a cold front come through Saturday followed by the coldest temps of the week on Sunday and Monday.

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26 minutes ago, CoolHandMike said:

18Z GFS wants to give 7" total snow to central and northern Berks into Tuesday. LOL

In other news, I'll be wearing winter weather gear while doing some fieldwork early tomorrow morning. Yep, definitely getting 2020 vibes here.

Gets snow relatively close to DC which is just as ridiculous 

 

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We did reach a morning low of 30 degrees here in East Nantmeal this morning - our 1st freezing temperature since back on March 30th. As mentioned today is the average date of our last freeze in the highers spots of Western Chester County. The record high for today is 95 back in 1896; with the record low being the 21 degree reading on 1928. Record rain is 1.43" in 1924. Largest snow was 0.3" on this date that began the largest late season snow in Chester County history...when over the 3 days ending on April 20, 1983 we received 6.7" of snow here in Chester County. Snow began at 1120pm on the 17th and continued until the early AM on the 20th. Kind of unusual with a late season snow such as this...was the NWS COOP observer reported localized drifting of the snow with the strong winds and most schools in the area were closed. image.png.33bb50cdd5d211155cd2a676e939549d.png

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55 minutes ago, ChescoWx said:

We did reach a morning low of 30 degrees here in East Nantmeal this morning - our 1st freezing temperature since back on March 30th. As mentioned today is the average date of our last freeze in the highers spots of Western Chester County. The record high for today is 95 back in 1896; with the record low being the 21 degree reading on 1928. Record rain is 1.43" in 1924. Largest snow was 0.3" on this date that began the largest late season snow in Chester County history...when over the 3 days ending the 20th we received 6.7" of snow here in Chester County. Snow began at 1120pm on the 17th and continued until the early AM on the 20th. Kind of unusual with a late season snow such as this...was the NWS COOP observer reported localized drifting of the snow with the strong winds and most schools in the area were closed. image.png.33bb50cdd5d211155cd2a676e939549d.png

So what year was this snowfall again?

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I bottomed out at 35 here around 1:30 am when the winds briefly went calm.  I didn't see any "visible" frost here earlier this morning as a light breeze started up again by ~2 - 2:30 am to mix things up a bit.  Currently overcast, 49 with dp 30, and am seeing stuff slowly moving this way from the SW.

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Flood Watched issued -

Quote

Flood Watch

Flood Watch
National Weather Service Mount Holly NJ
241 PM EDT Mon Apr 18 2022

.Heavy rain will move into the region later this afternoon and
evening as low pressure moves northward from the south. Rainfall
totals from 1 to 1.5 inches are likely, with localized totals to 2
inches possible. There could be periods of heavy rain that may
overwhelm streams and rivers where flash flood guidance is lower
from previous rains a week ago.

NJZ007>010-012-015-PAZ061-062-071-103>106-190600-
/O.NEW.KPHI.FA.A.0002.220418T2200Z-220419T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Warren-Morris-Hunterdon-Somerset-Middlesex-Mercer-Lehigh-Northampton-
Philadelphia-Western Montgomery-Eastern Montgomery-Upper Bucks-Lower
Bucks-
Including the cities of Trenton, Lansdale, Chalfont, Flemington,
Allentown, Morrisville, Washington, Philadelphia, Doylestown,
Collegeville, Morristown, Bethlehem, Perkasie, Pottstown,
Somerville, New Brunswick, Easton, and Norristown
241 PM EDT Mon Apr 18 2022

...FLOOD WATCH IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH LATE
TONIGHT...

* WHAT...Flooding caused by excessive rainfall is possible.

* WHERE...Portions of New Jersey...and Pennsylvania...including the
  following areas...in New Jersey...Hunterdon, Mercer, Middlesex,
  Morris, Somerset, and Warren. In Pennsylvania...Eastern
  Montgomery, Lehigh, Lower Bucks, Northampton, Philadelphia, Upper
  Bucks, and Western Montgomery.

* WHEN...From 6 PM EDT this evening through late tonight.

* IMPACTS...Excessive runoff may result in flooding of rivers,
  creeks, streams, and other low-lying and flood-prone locations.

* ADDITIONAL DETAILS...
  - Heavy rainfall rates of 1/4 to 1/2 inch for several hours and
    rainfall totals of 1.5 to 2 inches are possible.
  - http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.

&&

$$

Davis

Had a little rain so far (0.01").  Temp is 46 with dp 35 and overcast.

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