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January 2023 Mid-Long Range Disco


nj2va
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19 minutes ago, jaydreb said:

Let’s do it.  
image.png.afb0756d69a04953dc4b4ff3d9f62879.png

That's GB 16. I was livin' in Woodbridge VA then, and I got 27 inches of white paradise right in my backyard. Spent four days of pure BLISS diggin' all that snow! Then my neighbors came up saying they wanted me to shovel their walks, using Jebman Standards lol. Jebman Standards involve digging 8 feet around all cars on the property, removing all the snow from the full width of the sidewalks and driveways, and piling it up as high as possible.

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18 minutes ago, Jebman said:

That's GB 16. I was livin' in Woodbridge VA then, and I got 27 inches of white paradise right in my backyard. Spent four days of pure BLISS diggin' all that snow! Then my neighbors came up saying they wanted me to shovel their walks, using Jebman Standards lol. Jebman Standards involve digging 8 feet around all cars on the property, removing all the snow from the full width of the sidewalks and driveways, and piling it up as high as possible.

How was the jebwalk after that particular storm...compared to past storms? Was it a top-10, top-5, top-3, or #1 Jebwalk event?

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1 hour ago, WxSynopsisDavid said:

There are other issues like the warm ocean temps, that I fell are playing a part in this. Also like CAPE just said, this being a Nina year presents its own set of issues as well.

Oh, definitely agree with that as well. I've been retired a long time now and don't have as much experience with advanced tools in the field they have now but, will say the Greenland block -NAO hook-up is more prominent in recent years. The cause is not completely understood, mainly speculation. 

       I just thought Cape pointed out something that actually makes sense. Why are the 50-50 lows not developing or holding like it seems they should ? Could be SST'S in that area ,QBO etc.. who knows for sure. But, we do know, there's cause and effect. 

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2 minutes ago, Daniel Boone said:

Oh, definitely agree with that as well. I've been retired a long time now and don't have as much experience with advanced tools in the field they have now but, will say the Greenland block -NAO hook-up is more prominent in recent years. The cause is not completely understood, mainly speculation. 

       I just thought Cape pointed out something that actually makes sense. Why are the 50-50 lows not developing or holding like it seems they should ? Could be SST'S in that area ,QBO etc.. who knows for sure. But, we do know, there's cause and effect. 

The answer I believe is more complex and includes multiple different aspects. I do believe, so far this season, SST's are playing more of a part in the issues up north with trying to get an established block. 

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Just now, WxSynopsisDavid said:

The answer I believe is more complex and includes multiple different aspects. I do believe, so far this season, SST's are playing more of a part in the issues up north with trying to get an established block. 

My belief it is mainly the SST'S in the 50-50 area irt the problem regarding it.  I wholeheartedly agree alot of complexities. 

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2 minutes ago, Daniel Boone said:

My belief it is mainly the SST'S in the 50-50 area irt the problem regarding it.  I wholeheartedly agree alot of complexities. 

Admittedly I thought those warm SSTs in that area would help create more storminess and maintain 50-50 lows there better, but it may actually be causing more ridging forcing the 50-50 lows out quicker.

Also the west coast ridge being too far west doesn’t help either. I don’t think we’ve ever really locked in a +pna all this time. 

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6 hours ago, HighStakes said:

Just a few days ago the EPO was forecasted to be around neutral to slightly positive but now it's forecasted to go strongly positive. Tough to get any arctic air in the U.S. despite the other indices being favorable. Good news is that it look short lived as EPO should head down after right the new year.

Since when do we need cross poler Siberian air to get snow?  
h5 from some of our notable snowstorms. 
CF3DB868-02F0-4FA4-91A3-D1616BF7160C.gif.3e29bd1448f2110efb26beaa0b9ebb87.gifF764C474-0104-46EC-92C0-A667C76037CA.gif.99d754d97a057e0ed1b3d1d75673b2d4.gifD827C6B1-67B3-4FEC-837B-8D8520EA594D.gif.cbf42c7574ec085396e423aa802781ee.gifD1F3417E-FE86-45D1-A8CE-BEEA3D24CDB5.gif.ffec0d8c2e5b545b7b781d7fa2a6a41b.gifDF2AEBBA-F17A-4860-BC17-F48218C1AF31.gif.7cc4fa27fd0f71c59dc8279b0a10a276.gif2175AB70-C00C-4306-9199-806DD0F1012F.gif.982533b348004b54671945a51bf7576d.gif72070467-55B5-4DC7-8B36-02624D1C2A73.gif.6269e0687101a5ab52836a497377edbe.gifE4C15EDF-3EB4-43E2-8013-CD778A910CF0.gif.a0e652d5a45463d6b3ede7b676c90aad.gif14C5DA89-E20E-46D4-9918-B5E25E6A9F1D.gif.cf6d3de5057cdee677799fc63a3afa92.gifD875792C-289C-47FA-92BC-C3A98CB75DEE.gif.fc0f3d0df3131a1d0ed188567c32b476.gifC351D685-1C78-431E-BE61-F0C1BA8A076B.gif.70108854864100d41a73d2fe9e5675ba.gif

A -epo is actually pretty rare during a big snowstorm here because a ridge over AK often puts the trough too far west and a storm would cut unless there was a VERY negative NAO. The more typical progression to snow here was a -epo a week or so before the storm that helped inject cold into North America. Then the epo ridge progresses to the pna space with a trough near AK and the cold source cuts off. But the storm that would then come would take advantage of the left over domestic cold.  The cold didn’t get immediately routed and annihilated by warm pac puke in like 7 seconds like it seems to now!  If we need a direct flow from Siberia to get snow we’re in deep deep bleep because that’s actually NOT a good pattern for big snowstorms historically. 90% of our big snows did not happen during cross polar flow but used domestic air masses that were just  cold enough.  

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2 minutes ago, psuhoffman said:

Since when do we need cross poler Siberian air to get snow?  
h5 from some of our notable snowstorms. 
CF3DB868-02F0-4FA4-91A3-D1616BF7160C.gif.3e29bd1448f2110efb26beaa0b9ebb87.gifF764C474-0104-46EC-92C0-A667C76037CA.gif.99d754d97a057e0ed1b3d1d75673b2d4.gifD827C6B1-67B3-4FEC-837B-8D8520EA594D.gif.cbf42c7574ec085396e423aa802781ee.gifD1F3417E-FE86-45D1-A8CE-BEEA3D24CDB5.gif.ffec0d8c2e5b545b7b781d7fa2a6a41b.gifDF2AEBBA-F17A-4860-BC17-F48218C1AF31.gif.7cc4fa27fd0f71c59dc8279b0a10a276.gif2175AB70-C00C-4306-9199-806DD0F1012F.gif.982533b348004b54671945a51bf7576d.gif72070467-55B5-4DC7-8B36-02624D1C2A73.gif.6269e0687101a5ab52836a497377edbe.gifE4C15EDF-3EB4-43E2-8013-CD778A910CF0.gif.a0e652d5a45463d6b3ede7b676c90aad.gif14C5DA89-E20E-46D4-9918-B5E25E6A9F1D.gif.cf6d3de5057cdee677799fc63a3afa92.gifD875792C-289C-47FA-92BC-C3A98CB75DEE.gif.fc0f3d0df3131a1d0ed188567c32b476.gifC351D685-1C78-431E-BE61-F0C1BA8A076B.gif.70108854864100d41a73d2fe9e5675ba.gif

A -epo is actually pretty rare during a big snowstorm here because a ridge over AK often puts the trough too far west and a storm would cut unless there was a VERY negative NAO. The more typical progression to snow here was a -epo a week or so before the storm that helped inject cold into North America. Then the epo ridge progresses to the pna space with a trough near AK and the cold source cuts off. But the storm that would then come would take advantage of the left over domestic cold.  The cold didn’t get immediately routed and annihilated by warm pac puke in like 7 seconds like it seems to now!  If we need a direct flow from Siberia to get snow we’re in deep deep bleep because that’s actually NOT a good pattern for big snowstorms historically. 90% of our big snows did not happen during cross polar flow but used domestic air masses that were just  cold enough.  

Thank you, very interesting! How do you remember all this stuff?

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