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March 7th-9th Potential Storm


wisconsinwx

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Curious as to why you think that is? Too much of a NAo block? The PNA was too positive?

a relatively persistent feature all winter long was ridging out west, we've either had s/w's having to go over the top like the clipper pattern we had our when we've been able to squash down the ridge they end up digging too far south and end up ejecting storms east of the Miss. or going negative tilt early but having to come up from texas we haven't had a h500 set up like this really, this s/w and the remaining energy is allowed to cross the country while amplifying.

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Curious as to why you think that is? Too much of a NAo block? The PNA was too positive?

The early season high latitude blocking and persistent -AO type regime over the Lakes and out east definitely squashed any threats for potential growth and development of any ejecting lee storms. The freakish Northern Plains blizzard was even "stunted a tad" and generally took a strong NW track then rapidly occluded and tracked E as it headed farther N--doesn't matter since it ejected out of MT/WY so it wasn't a true CO Low. That +PNA ridge pattern that followed was also not conducive in any way to ejecting troughs into the plains--quite the opposite in fact. Of course there is more to it than that--but that is my simplistic analysis of this winter in terms of CO Low potential. It has been shoddy to say the least.

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models have been in pretty good agreement with this one for days, tracks shift a tad once in awhile but have had no major shifts Will be interesting to see if that changes as we get closer.

Several things are different, other than general Sfc Low track. Polar Vort for the GFS is over Hudson Bay (GFS), where as the Polar Vort is near Nunavut (ECMWF); placement should be a player in the track of the system. Right now the ECMWF makes more sense. Where as the CMC is much slower overall and has a Polar Vort in a similar location to the GFS.

Just how I'm looking at it anyways.

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WAY south. I like it. What does it spit out for precip for North Platte?

so far...run not complete yet.

TUE 06Z 08-MAR  -0.5    -1.1    1007      97      98    0.17     547     541    
TUE 12Z 08-MAR  -0.4    -2.4    1001      98      97    0.43     543     542    
TUE 18Z 08-MAR  -0.6    -2.4    1001      98      89    0.27     541     540    
WED 00Z 09-MAR  -2.3    -5.0    1007      93      96    0.19     543     537    

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so far...run not complete yet.

TUE 06Z 08-MAR  -0.5    -1.1    1007      97      98    0.17 	547 	541    
TUE 12Z 08-MAR  -0.4    -2.4    1001      98      97    0.43 	543 	542    
TUE 18Z 08-MAR  -0.6    -2.4    1001      98      89    0.27 	541 	540    
WED 00Z 09-MAR  -2.3    -5.0    1007      93      96    0.19 	543 	537    

Yeah, it's all snow. 1.25 ish QPF probably.

Thanks both of you. What a run. Just total weenie--that would pure epic.

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Not that it means much at this range, but wow the 00z Euro drops just under 1.50 inches of liquid over Mankato, which would also be pure snow..I guess let the historic winter keep on rolling. Can we crack 100 inches? This one will be fun to watch!

It wont take much to break 100" from there to here in the Twin Cities. Only need 15-25" and that is only a tad above normal when you combine March and April. If we get 6-12" out of this thing (or more!) we'd be at 90" with a very active pattern indicated in the longer range.

Will be interesting and like you said, fun to watch.

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It wont take much to break 100" from there to here in the Twin Cities. Only need 15-25" and that is only a tad above normal when you combine March and April. If we get 6-12" out of this thing (or more!) we'd be at 90" with a very active pattern indicated in the longer range.

Will be interesting and like you said, fun to watch.

Also this will definitely impact our flood potential, we still have a good 13-14 inches on the ground, probably a little melting today but not much due to it being cloudy. Just amazing how many double digit snowstorms we have had! I have honestly lost count, Seems like we average a "decent" snowstorm each week. Its almost like routine haha.

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