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Central PA Spring 2023


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17 minutes ago, Bubbler86 said:

LR wise we switch from mostly BN to AN as we get closer to Memorial Day including this signal for 85-90 on Memorial day.

image.thumb.png.6b60e97323a92f9d83f0ef1f28581c41.png

 

Tea I don't like the sound of tonight. Tv-27 said they think the NWS will expand the freeze watch south to include the lower Susquehanna Valley tonight.  Those temps getting closer to the Holiday weekend look better!

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5 minutes ago, mahantango#1 said:

Tea I don't like the sound of tonight. Tv-27 said they think the NWS will expand the freeze watch south to include the lower Susquehanna Valley tonight.  Those temps getting closer to the Holiday weekend look better!

We will be spending an hour or two prepping this evening. Worst case scenario depictions on models would destroy a lot of our stuff if we do not cover so going to assume the worst just in case.   Similar situation to the snow we had a few Mays ago as to prep. 

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2 minutes ago, Bubbler86 said:

We will be spending an hour or two prepping this evening. Worst case scenario depictions on models would destroy a lot of our stuff if we do not cover so going to assume the worst just in case.   Similar situation to the snow we had a few Mays ago as to prep. 

I don't really think their really worried about frost...its the freezing temps. 

Highly favorable radiational cooling conditions combined with
very low pwat airmass signals increasing confidence of a
potentially damaging freeze across the northern half of CPA. We
expanded freeze watch to the I-80 corridor and blended minT
toward tabular MOS numbers which will challenge some daily low
temps records. MAV is 21F at KBFD and would not surprised if the
usually colder spots across the northern tier drop into the
upper teens! Needless to say it will be about as cold as it can
be for mid May tonight into early Thursday morning!

The other nuance in the forecast tonight is that despite the
unseasonably cold temps, the incoming airmass may actually be
too dry to get widespread frost formation. Our in-house
probability of frost/forecast builder procedure is quite
bearish on frost so we cut back/capped coverage from widespread
to areas. Locations across the southern half of the area where a
freeze watch is not in effect, could easily see at lest some
patchy frost with near-freezing temps capable of damaging
sensitive vegetation.
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29 minutes ago, mahantango#1 said:

I don't really think their really worried about frost...its the freezing temps. 

Highly favorable radiational cooling conditions combined with
very low pwat airmass signals increasing confidence of a
potentially damaging freeze across the northern half of CPA. We
expanded freeze watch to the I-80 corridor and blended minT
toward tabular MOS numbers which will challenge some daily low
temps records. MAV is 21F at KBFD and would not surprised if the
usually colder spots across the northern tier drop into the
upper teens! Needless to say it will be about as cold as it can
be for mid May tonight into early Thursday morning!

The other nuance in the forecast tonight is that despite the
unseasonably cold temps, the incoming airmass may actually be
too dry to get widespread frost formation. Our in-house
probability of frost/forecast builder procedure is quite
bearish on frost so we cut back/capped coverage from widespread
to areas. Locations across the southern half of the area where a
freeze watch is not in effect, could easily see at lest some
patchy frost with near-freezing temps capable of damaging
sensitive vegetation.

Any frost will be bad for some of our stuff.  Upper teens!  Wow!  That is a ballsy call in the AFD. 

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A cold front slid through the area overnight from the north and winds have turned to the north. Temps have continued to fall from our midnight high of 62.8 - we are currently at 52.7 here in East Nantmeal. Tonight will see many areas fall into the 30's for what should be the last time until October. Below normal temperatures should continue through Friday before rebounding to near normal on Saturday. Shower chances will increase on Saturday.
Records for today: High 91 (1951) / Low 30 (1895) / Rain 1.34" (2018)
image.png.191ffe374b0dc2e3da53c19d3ca3eea7.png
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4 minutes ago, Itstrainingtime said:

Leaving this beautiful town later this morning. My wife captured this on our day out and about yesterday:

Mammoth Lakes Travel Guide 2023 | Free PDF book to print

Today we head northwest to San Francisco, due to arrive this evening. From there we'll head down the coast to Los Angeles over the next several days. 

Mike, if you get to Carmel, we had a pretty good meal at a place called Hogs Breath

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1 hour ago, Itstrainingtime said:

Leaving this beautiful town later this morning. My wife captured this on our day out and about yesterday:

Mammoth Lakes Travel Guide 2023 | Free PDF book to print

Today we head northwest to San Francisco, due to arrive this evening. From there we'll head down the coast to Los Angeles over the next several days. 

Did you get some feelers on buying a place there? 

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URGENT - WEATHER MESSAGE
National Weather Service State College PA
1105 AM EDT Wed May 17 2023

PAZ004>006-010>012-037-041-042-180315-
/O.UPG.KCTP.FZ.A.0005.230518T0400Z-230518T1200Z/
/O.NEW.KCTP.FZ.W.0007.230518T0400Z-230518T1200Z/
Warren-McKean-Potter-Elk-Cameron-Northern Clinton-Tioga-
Northern Lycoming-Sullivan-
Including the cities of Warren, Bradford, Coudersport, St. Marys,
Ridgway, Emporium, Renovo, Mansfield, Wellsboro, Trout Run,
and Laporte
1105 AM EDT Wed May 17 2023

...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM EDT
THURSDAY...

* WHAT...Sub-freezing temperatures as low as 25 expected.

* WHERE...Warren, McKean, Potter, Elk, Cameron, Northern
  Clinton, Tioga, Northern Lycoming and Sullivan Counties.

* WHEN...From midnight tonight to 8 AM EDT Thursday.

* IMPACTS...Freeze conditions will kill crops and other sensitive
  vegetation.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take protective measures now as freezing temperatures could
damage or kill tender plants and vegetation. Potted plants should
be brought inside.

The latest forecast information can be found on the NWS State
College Facebook page and Twitter @NWSStateCollege, or on the web
at weather.gov/ctp.

&&

$$
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Firing up the heater...was in the upper 60's at 6:30 and 2 hours later down to 51.   Really pushing the ticket tonight if the colder readings come to fruition.  It has only reached freezing 3-4 times in May at MDT in history of record keeping with the latest in the month being May 11, 1966.  Not saying it gets to freezing at MDT but still a chance for some impressive temps tonight considering tomorrow will be one week past that May 11 date. 

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Here is a later Freeze Warning from the one above with extra counties. Williamsport-Southern Lycoming was added:

FREEZE WARNING
ISSUED: 6:32 PM MAY. 17, 2023 – NATIONAL WEATHER SERVICE
...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM EDT THURSDAY...

* WHAT...Sub-freezing temperatures as low as 31 expected.

* WHERE...Clearfield, Northern Centre, Southern Centre, Southern
Clinton, Southern Lycoming, Union, Snyder, Montour,
Northumberland and Columbia Counties.

* WHEN...From midnight tonight to 8 AM EDT Thursday.

* IMPACTS...Frost and freeze conditions will kill crops, other
sensitive vegetation.

 

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1 minute ago, CoralRed said:

Here is a later Freeze Warning from the one above with extra counties added. Williamsport-Southern Lycoming was added:

FREEZE WARNING
ISSUED: 6:32 PM MAY. 17, 2023 – NATIONAL WEATHER SERVICE
...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM EDT THURSDAY...

* WHAT...Sub-freezing temperatures as low as 31 expected.

* WHERE...Clearfield, Northern Centre, Southern Centre, Southern
Clinton, Southern Lycoming, Union, Snyder, Montour,
Northumberland and Columbia Counties.

* WHEN...From midnight tonight to 8 AM EDT Thursday.

* IMPACTS...Frost and freeze conditions will kill crops, other
sensitive vegetation.

 

Looks like the record for Williamsport tonight is 31.    The most impressive thing I saw when looking at the records was a 38 recorded there on Jun 21, 1897.  

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39 currently.

FREEZE WARNING
ISSUED: 7:04 PM MAY. 17, 2023 – NATIONAL WEATHER SERVICE
...FREEZE WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
9 AM EDT THURSDAY...

* WHAT...Sub-freezing temperatures of 24 to 28 in rural areas, and
28-32 in urban locations expected.

* WHERE...Portions of central New York and northeast
Pennsylvania.
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We reached 61 in Williamsport today and are now 47.

Our Area Forecast Discussion says:  "Right now, we [sic] bottom readings out in the low-mid 20s for our far northern counties, but some lows near, or even a shade below 20, would not be unrealistic." 

So we may have places in PA that may get into the teens. I thought meeting or beating our record of 31 would be impressive. Teens would be amazing.

 

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2:35a: It is 37 in Williamsport and not looking good to meet or beat our record of 31. In other news right now -- yes, there is some other news at this hour-- crews are out replacing four light poles that got pulled and twisted and are now leaning into street while building slowly being taken apart at the corner. Crews not only unlucky to still be out this late but it is cold out there, of course. People coming later to redo damaged concrete sidewalks will have a much easier job. I am sure glad I don't have to get up early tomorrow; my sleep would have been interrupted. Actually it is surprising it is not a lot noiser out there. I didn't hear any jackhammering.

 

IMG_20230518_022700.jpg

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Just now, mahantango#1 said:

Got down to 29.7 here this morning. there is frost also at places in the grass cars coated in frost.  Now i'll see what damage was caused by this on the annual flowers, blueberries, strawberries, tomato plants, etc in the next few hours. according to my ambient it dropped below 32 at 3:45am.

That is amazingly low for May 18th.  (Not questioning, it was forecast by some models).    We have strawberries and they have survived this earlier in the spring.   Might dip into the 30's again tonight up your way. Not below freezing though. 

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