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November Medium/ Long Range


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11 minutes ago, winter_warlock said:

Ok FWIW. Joe Bastardi is claiming  that there is no lanina...  any truth to this. And if  Joe is right then   the winter could look much different  then originally  thought..    just my opinion.. maybe someone with alot more knowledge  of the enso  patterns could chime in :)

Screenshot_20241118_172401_Chrome Beta.jpg

Latest CPC update from last week said ENSO-neutral now with a Nina forecasted to be weak for the winter.

https://www.cpc.ncep.noaa.gov/products/analysis_monitoring/enso_advisory/ensodisc.pdf

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Heyooooo

URGENT - WINTER WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
225 PM EST Mon Nov 18 2024

MDZ001-VAZ503-WVZ501-503-505-190330-
/O.NEW.KLWX.WS.A.0009.241121T1800Z-241124T0000Z/
Garrett-Western Highland-Western Grant-Western Mineral-Western
Pendleton-
225 PM EST Mon Nov 18 2024

...WINTER STORM WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH
SATURDAY EVENING...

* WHAT...Heavy snow possible. Total snow accumulations of 6 to 12
  inches are possible with locally higher amounts along the
  ridgetops. Winds could gust as high as 50 mph.

* WHERE...In Maryland, Garrett County. In Virginia, Western Highland
  County. In West Virginia, Western Grant, Western Mineral, and
  Western Pendleton Counties.

* WHEN...From Thursday afternoon through Saturday evening.

* IMPACTS...Visibilities may drop below 1/4 mile at times due to
  falling and blowing snow. This may lead to whiteout conditions and
  may make travel difficult. The strong winds and weight of snow on
  tree limbs may down power lines and could cause sporadic power
  outages.
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17 minutes ago, NorthArlington101 said:


Think I might’ve made myself too important and have to work at least half of Friday. I’ll assess a Friday evening overnighter!

You can tell your employer that you have come down with a "sickness" and be completely truthful: snow sickness.

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in terms of what we might be able to expect going forward, the Pacific jet is obviously of great importance. it seems like we're going to see a rather potent jet, though one that's still closer to Japan. it also remains equatorward, which is important

ecmwf-ensemble-avg-globe-uv200_stream-2795200.png.543bc0567bf6e055b17b0536f95dcc85.png

when looking at more favorable winters like 2010, 2013, and 2020, there is a solid signal for a more potent jet (2/3 years are equatorward), and most importantly, there is ample wave breaking out ahead of the jet streak. this is for around a 10 day period from the end of Nov into the first week of Dec

1868306964_goodpacjets.gif.449a2a9cd21d95fa478c1dc8944c147b.gif

when looking at the less favorable years like 1998, 1999, 2001, and 2007, the jet extends much too far, is more poleward, and there is much less wave breaking as a result

240327637_badpacjets.gif.0e17612b2590e861f4098064283ea926.gif

therefore, it's important to see how the jet behaves over the next 10 days or so. the more equatorward presentation of the jet is partly why we're seeing troughing set up so much near HI... if it was poleward, those troughs would be pushing into the ridge or even allowing those troughs to move closer to the GoAK

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14 hours ago, JenkinsJinkies said:

Except for 2016-2017

In retrospect, I wonder if 2016-2017 wasn't the first herald of the coming ---------------------------PDO episode.  I remember there being comment that year that it was barely a Nina, (might have been cool neutral by some metric) yet the atmosphere seemed to couple extremely strongly in a La Nina mode. 

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WPO/EPO combo will help ensure that there is some real cold available and not weak-sauce modified crap like we’ve had in recent years. Two big things though to watch:

1. Does all the cold air dump in the west and keep the SE ridge flexed? 
2. If the cold air does come east, is it just 2-4 days of dry cold that quickly lifts out when a powerhouse 1014mb low approaches? 

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