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January 24-25th Potential Winter Weather Event


dmc76

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the drying trend has been evident across all models over the last 24 hours or so, it's not just NAM fantasy.

 

Have not seen it on the GEM or GFS really.  Euro barely had anything for us from the start so no change there.  The NAM had really light amounts except for its first run which we all knew was :weenie:

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This is a rhetorical question but since it changed a ton since just yesterday, why would I trust Skilling's (apparently weenie) RPM?  I wish there was one model out there I could feel decently confident in, but that is not the case these days.

 

It seems to be in line with the GFS and the last run of the NAM. So fwiw: it's not way out in lala land like the nogaps was yesterday and it's not as bullish as the GGEM either.

 

Looks like the NAM beefed up accumulations for SE WI. 0.2"+ for you and BowMe.

 

Between 0.1-0.15" here.

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Chad Evans still thinks 3-6" for LAF and 18:1 ratios. I'm having trouble seeing those kind of ratios...the DGZ does approach 100 mb depth but uvv just isn't that strong. Then there's the model qpf...assuming 18:1, we would need at least .17 to even get to the lower end of that call.

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from a great forecaster friend of mine..

 

for my area

 

"I honestly don't buy the models' solution for Thursday Night/Friday. I'd guess we'll get 2-4" of snow. ratios/length of event, think vert motion, per s/wv trof & associated waa will be sufficient here for one or two decent hours of snow..experience from s/wv's coming this path in this situation from artic air to pretty substantial (relative) wamrth says this will be more than progged. Weird thing is ..WAA much different w/o snow cover (plays havoc in BL). But I'd put money on 3", give or take. Going on a limb, but I'm pretty confident in it."

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from a great forecaster friend of mine..

 

for my area

 

"I honestly don't buy the models' solution for Thursday Night/Friday. I'd guess we'll get 2-4" of snow. ratios/length of event, think vert motion, per s/wv trof & associated waa will be sufficient here for one or two decent hours of snow..experience from s/wv's coming this path in this situation from artic air to pretty substantial (relative) wamrth says this will be more than progged. Weird thing is ..WAA much different w/o snow cover (plays havoc in BL). But I'd put money on 3", give or take. Going on a limb, but I'm pretty confident in it."

 

 

Our LOT friend and Stebo agree...so your friend isn't alone.  Anything more than 2" would surprise me...especially if it's more than some hyper local reports from areas under enhanced bands.  My guess is that .5-1.5" amounts will be the norm across LOT.

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For consistency sake I'll continue to ride my 1-2" call for here and the QC, but favor the lower amounts at this point.  12z and 18z GFS both show <0.1 precip here, and the both NAM runs only around 0.1".  Normally a non-event, but in this case might have a chance at being the #2 event of the winter so far.  Would only have to top 0.8" to achieve that.

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Our LOT friend and Stebo agree...so your friend isn't alone.  Anything more than 2" would surprise me...especially if it's more than some hyper local reports from areas under enhanced bands.  My guess is that .5-1.5" amounts will be the norm across LOT.

IWX is thinking 2"-3" and IND is calling for 1"-3" across their area with both offices thinking at or slightly than higher than climo ratios (12:1).

 

I might actually break into double digits for seasonal snowfall.

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