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Late March snow blitz! March 24-25th


cyclone77

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You have had 37" of snow this year. You want to talk about this somewhere else?

Not here!! and I believe I can express my concerns and or discuss this storm or the lack of a big storm on this forum..last I looked it is a forum for discussion!! So chill!

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For real though, pretty obvious my earlier call for 6-10" for LAF is gonna bust pretty bad. With the consensus south shift, I'm gonna lop it in half and go 3-5" final call. Hopefully that doesn't end up a bullish call. Amazing we'll miss on the heaviest snow to the south in late March. Congrats BMG, CMH, IND, STL, etc.

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For real though, pretty obvious my earlier call for 6-10" for LAF is gonna bust pretty bad. With the consensus south shift, I'm gonna lop it in half and go 3-5" final call. Hopefully that doesn't end up a bullish call. Amazing we'll miss on the heaviest snow to the south in late March. Congrats BMG, CMH, IND, STL, etc.

 

why would you ignore the euro?

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Euro is by itself now for LAF. Everything else is south. Consensus rules the day.

 

well if nothing else this will be a great case study.  If LAF gets pummeled....euro truly is king.   I still think anyone in IL, IN, and OH are in the game, fairly dynamic system.  .closer to the central part of the states, especially in IN, I think you have a great shot.     On the downside, I think max amounts in IN and OH are 8" lollipops.

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well if nothing else this will be a great case study. If LAF gets pummeled....euro truly is king. I still think anyone in IL, IN, and OH are in the game, fairly dynamic system. .closer to the central part of the states, especially in IN, I think you have a great shot. On the downside, I think max amounts in IN and OH are 8" lollipops.

I give props to the GFS for sniffing out the late south move. Boo to the NAM as usual. I think there's 10" possibilities in Indiana, around the I-70 corridor...but it probably won't translate into OH due to occlusion/transfer issues. STL area will be the big winner, 12" or more looks possible out there. Hope they get whomped.

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I give props to the GFS for sniffing out the late south move. Boo to the NAM as usual. I think there's 10" possibilities in Indiana, around the I-70 corridor...but it probably won't translate into OH due to occlusion/transfer issues. STL area will be the big winner, 12" or more looks possible out there. Hope they get whomped.

 

true about the gfs...assuming this southern trend verifies. As far as the precip cutoff due to occlusion in OH, that has become less evident as well in the latest model runs. The primary seems to hold on for so long and now the 500 low is cutting to our south instead of right over us. I've always been more concerned about waa with this one, (that threat seems to be lessening as well).   Agree with you, jackpot is somewhere in southern IL...

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Top 10, and ties, March snowstorms for STL. Pretty impressive list really.

 

12.1" - March 24, 1912

11.9" - March 9-10, 1958

10.8" - March 5-6, 1989

10.3" - March 12-13, 1937

10.0" - March 4, 2008

9.5" - March 7-8, 1978

9.1" - March 19, 1906

8.6" - March 20, 1924

8.5" - March 2-3, 1912

8.4" - March 26-27, 1913

8.4" - March 26-27, 1947

8.4" - March 23-24, 1990

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You're golden. Amazing for late March. 

I'm on a valley floor and some of the snow will fall during the day, so I'll play things very cautious with the accum forecast. One concern of mine is if the low ends up tracking north of the river, which the Euro, while a bit of an outlier, shows, I'll probably either dry slot or mix. QPF wise I'm good though, over half an inch on just about everything (GFS very close) and I'm slowly feeling better about temperatures.

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I'm on a valley floor and some of the snow will fall during the day, so I'll play things very cautious with the accum forecast. One concern of mine is if the low ends up tracking north of the river, which the Euro, while a bit of an outlier, shows, I'll probably either dry slot or mix. QPF wise I'm good though, over half an inch on just about everything (GFS very close) and I'm slowly feeling better about temperatures.

 

Yeah, seems temps have become less of an issue for areas further south...again, amazing for late March in my book. I think at this point, the Euro is in the wrong with its more "northern" track...but it's been waffling anyway. Spring time winter storms seem to give the models fits. Good luck down there. :)

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Yeah, seems temps have become less of an issue for areas further south...again, amazing for late March in my book. I think at this point, the Euro is in the wrong with its more "northern" track...but it's been waffling anyway. Spring time winter storms seem to give the models fits. Good luck down there. :)

Thanks. The GFS occludes and stalls the low immediately to my west which would be a disaster, warm bubble sits right overhead. Will be watching closely tomorrow for sure. Thinking 2-4" here but could be more if a NAM like solution verifies and the surface low doesn't track any farther north than my latitude...will be really close.

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Thanks. The GFS occludes and stalls the low immediately to my west which would be a disaster, warm bubble sits right overhead. Will be watching closely tomorrow for sure. Thinking 2-4" here but could be more if a NAM like solution verifies and the surface low doesn't track any farther north than my latitude...will be really close.

I'll be watching the progress of that first slug of moisture entering the state from the south. The speed and juice of that may give us a clue early whether this will be a legit hammering or not.

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I'll be watching the progress of that first slug of moisture entering the state from the south. The speed and juice of that may give us a clue early whether this will be a legit hammering or not.

Yeah. For me I'm more worried about temps than QPF. Even if you briefly start as rain you should quickly wet-bulb cool enough for all snow and won't get into any significant WAA...so you should remain all snow. Will be curious to see how much the precip shield starts to decay from east to west across the state once this occludes and once the coastal starts taking over...I'd guess CMH sees at least half an inch of liquid regardless...question is if it will be a lot more.

 

Edit...although even with .5" of liquid I wouldn't expect more than 3-5".

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