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GFS Fantasy storm a plenty


wxbrad

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Ji pinned a thread yesterday about jma @ 192 and lo and behold here it is again today. Consistency and remeber the jma scored a LR coup or 2 last year. Yesterday LP was in NW Arkansas, today futher east. Keep an eye on the JMA until it shifts gears from this scenerio 2 runs in a row as we get down into the day 4-7 range latter this week.

Here is qpf and surface temps at 192.

jma-mslp-qpf_us_192.png

jmasurface-temperature_us_192.png

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New Euro back to a Gulf low snow scenario from TX all the way to the Carolinas. The model flip-flops and massive differences are very entertaining right now, will be fun to watch the gyrations continue for the next several days...

yes nearly any solution is possible right now. i feel bad for a pro met right now.

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The 0z Euro is no less than the biggest Dec. snowstorm for KATL since at least 1917 and possibly since 1896. It would also be the biggest moderate to strong La Nina Atlanta snow since 1894. With 850's comfortably below 0c (~-2C to -3C, which is plenty cold to produce just about pure snow for ATL as per history) and a near perfect Miller A surface low track producing ~0.60" of qpf, my interpretation of this run is that it is producing ~5-7" snow for the Atl-Ahn areas from late 12/7 til the late AM of 12/8. This would be bordering on or exceeding the biggest KATL snow since at least the early 1990's!

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The 0z Euro is no less than the biggest Dec. snowstorm for KATL since at least 1917 and possibly since 1896. It would also be the biggest moderate to strong La Nina Atlanta snow since 1894. With 850's comfortably below 0c (~-2C to -3C, which is plenty cold to produce just about pure snow for ATL as per history) and a near perfect Miller A surface low track producing ~0.60" of qpf, my interpretation of this run is that it is producing ~5-7" snow for the Atl-Ahn areas from late 12/7 til the late AM of 12/8. This would be bordering on or exceeding the biggest KATL snow since at least the early 1990's!

That would be incredible, BTW, London is plastered in snow currently...Which is rare for them. :snowman::snowman:

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The 0z Euro is no less than the biggest Dec. snowstorm for KATL since at least 1917 and possibly since 1896. It would also be the biggest moderate to strong La Nina Atlanta snow since 1894. With 850's comfortably below 0c (~-2C to -3C, which is plenty cold to produce just about pure snow for ATL as per history) and a near perfect Miller A surface low track producing ~0.60" of qpf, my interpretation of this run is that it is producing ~5-7" snow for the Atl-Ahn areas from late 12/7 til the late AM of 12/8. This would be bordering on or exceeding the biggest KATL snow since at least the early 1990's!

What is AHN?

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the 12z GFS now has the strong closed low, progressing into southern California. Thats the most important feature. Later on it dampens it, due to the overhwelming cold coming in from northern stream. This is a start for the GFS, and is a very good sign. A temporary split flow . Always the best way to give snow to the Southern states.

post-38-0-10420600-1291135130.gif

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CMC looks good for here, no doubt! The GFS is just doing it's typical squashing deal,i.m.o. Although, in this case there is a possibility if the upstream block and pressing of the polar jet were to be strong enough. Only way we get a decent grip on this is when we get within the 3-4 day range more than likely.

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The 12Z Euro says storm cancel. The beautiful 0Z Euro modeled ATL-AHN and nearby areas' historic snow doesn't exist on this run because the northern jet/cold and dry air is much too dominant. So, storm cancel for ATL-AHN, etc.. Messengers shouldn't be shot..not good for their health! NEXT run!

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