turtlehurricane Posted February 23, 2012 Share Posted February 23, 2012 Down to 32 in Monroe and Platteville with snow. It's all about that cold pool. Link to comment Share on other sites More sharing options...
cyclone77 Posted February 23, 2012 Share Posted February 23, 2012 Getting sleet/snow mixing with the rain. First frozen precip of the day. Link to comment Share on other sites More sharing options...
A-L-E-K Posted February 23, 2012 Share Posted February 23, 2012 Dont epic faceplam me.. PUNK Low Originated in Saskatchewan You have a point come on now, first off, the term is Alberta Clipper, second the original low has already given way to the secondary which is cutting NE from southern MO....This isn't a clipper by any stretch. Link to comment Share on other sites More sharing options...
A-L-E-K Posted February 23, 2012 Share Posted February 23, 2012 Getting sleet/snow mixing with the rain. First frozen precip of the day. Good luck buddy, i think we end up with similar totals when all is said and done. Link to comment Share on other sites More sharing options...
hm8 Posted February 23, 2012 Share Posted February 23, 2012 latest HPC maps.. Link to comment Share on other sites More sharing options...
Geos Posted February 23, 2012 Share Posted February 23, 2012 that area sure is looking prime right along the Wis./Ill. border. That would be where I am at! +S right now. 1/4 mile visibility. 33.0° here. Ground is covered and it is snowing hard enough to stick on the roads. Had about 20-25 minutes of mix, then went straight to monster sized flakes. Link to comment Share on other sites More sharing options...
A-L-E-K Posted February 23, 2012 Share Posted February 23, 2012 nice to see the 12" contour being busted out for MI folks Link to comment Share on other sites More sharing options...
turtlehurricane Posted February 23, 2012 Share Posted February 23, 2012 come on now, first off, the term is Alberta Clipper, second the original low has already given way to the secondary which is cutting NE from southern MO....This isn't a clipper by any stretch. Yeah, it's a hybrid. The dividing line between a clipper and a gulf connected low is somewhat ambiguous though. They both come off the Rocky mountains, just one does it in Canada and the other in the central US. Link to comment Share on other sites More sharing options...
baroclinic_instability Posted February 23, 2012 Share Posted February 23, 2012 Don't hate ya. It makes sense. Its a clipper Not quite. Clippers don't have a GOM feed or a 160-180 kt longwave trough configuration. Link to comment Share on other sites More sharing options...
Geos Posted February 23, 2012 Share Posted February 23, 2012 That slant stick'n rascal is going to make out like a bandit. (insert haters ball pic here) Flakes starting to mix in here...hopefully this is the beginning of the real changeover Lol! I take a picture of my final measurement for ya! I was watching the cars coming northbound on Green Bay Rd and some of them had 1-2" of snow on them. - not that much here yet. Sounds like central Lake County has done pretty good so far. Link to comment Share on other sites More sharing options...
baroclinic_instability Posted February 23, 2012 Share Posted February 23, 2012 Yeah, it's a hybrid. The dividing line between a clipper and a gulf connected low is somewhat ambiguous though. They both come off the Rocky mountains, just one does it in Canada and the other in the central US. Clipper is an overused term. This is definitely not a clipper by any stretch, not even close. Classic clippers form along the Polar Front beginning as surface waves and are usually Pacific occlusions that reform in the lee of the Rockies...preferably Alberta. By their nature and where they form they basically never have any sort of GOM feed. They certainly are not long wave rossby waves. Link to comment Share on other sites More sharing options...
hm8 Posted February 23, 2012 Share Posted February 23, 2012 Trying to figure out how I'm going to get my sleep in tonight... I can't exactly just crash early since I'm in a dorm with another guy, probably wouldn't like it if I turned the lights off at midnight. When do you guys think the best chance for TSSN will be for SEMI? I've swear I've always happened to be at some noisy indoor event every time theres thundersnow in the area and I've never heard/seen it (#firstworldproblems) Link to comment Share on other sites More sharing options...
A-L-E-K Posted February 23, 2012 Share Posted February 23, 2012 Lol! I take a picture of my final measurement for ya! I was watching the cars coming northbound on Green Bay Rd and some of them had 1-2" of snow on them. - not that much here yet. Sounds like central Lake County has done pretty good so far. You look good, your area is pretty much prime along with McHenry Co. Good Luck. Link to comment Share on other sites More sharing options...
turtlehurricane Posted February 23, 2012 Share Posted February 23, 2012 Clipper is an overused term. This is definitely not a clipper by any stretch, not even close. Classic clippers from along the Polar Front beginning as surface waves and are usually Pacific occlusions that reform in the lee of the Rockies...preferably Alberta. By their nature and where they form they basically never have any sort of GOM feed. They certainly are not long wave rossby waves. Yeah, I got somewhat confused by posters saying there was a Saskatchewan low, looking at the sfc map archive it's clear that one has basically nothing to do with this. Link to comment Share on other sites More sharing options...
weatherpsycho Posted February 23, 2012 Share Posted February 23, 2012 Clipper is an overused term. This is definitely not a clipper by any stretch, not even close. Classic clippers from along the Polar Front beginning as surface waves and are usually Pacific occlusions that reform in the lee of the Rockies...preferably Alberta. By their nature and where they form they basically never have any sort of GOM feed. They certainly are not long wave rossby waves. Thanks for this. That is what I always thought of when using the word clipper. Since being on these forums I hear clipper all the time now and was wondering. Link to comment Share on other sites More sharing options...
A-L-E-K Posted February 23, 2012 Share Posted February 23, 2012 Yeah, I got somewhat confused by posters saying there was a Saskatchewan low, looking at the sfc map archive it's clear that one has basically nothing to do with this. blame skilling, he had Saskatchewan Screamer trending today Link to comment Share on other sites More sharing options...
weatherpsycho Posted February 23, 2012 Share Posted February 23, 2012 Trying to figure out how I'm going to get my sleep in tonight... I can't exactly just crash early since I'm in a dorm with another guy, probably wouldn't like it if I turned the lights off at midnight. When do you guys think the best chance for TSSN will be for SEMI? I've swear I've always happened to be at some noisy indoor event every time theres thundersnow in the area and I've never heard/seen it (#firstworldproblems) Go to bed now. We have a few hours before anything really gets going in Oakland County. Link to comment Share on other sites More sharing options...
QVectorman Posted February 23, 2012 Share Posted February 23, 2012 I am going to argue against that...only gulf connection is 850. Vort max coming out of wyoming/nebraska area. Certainly not an Alberta clipper...and I don't picture it as a Saskatchewan Screamer or manitoba momma but it's in between everything since it did dig far enough south before heading east Link to comment Share on other sites More sharing options...
cyclone77 Posted February 23, 2012 Share Posted February 23, 2012 Good luck buddy, i think we end up with similar totals when all is said and done. Thanks, you too! Yeah I agree, we seem to be lined up pretty well. Link to comment Share on other sites More sharing options...
kab2791 Posted February 23, 2012 Share Posted February 23, 2012 Liking the latest trends for central MI. Going to say 4-7" here as 18z suite along with RUC and HRRR suggesting increased amounts across the advisory areas of MI Link to comment Share on other sites More sharing options...
cyclone77 Posted February 23, 2012 Share Posted February 23, 2012 Some pretty cool waves showing up on the DVN 88D. BI would appreciate this. Link to comment Share on other sites More sharing options...
Geos Posted February 23, 2012 Share Posted February 23, 2012 Link to comment Share on other sites More sharing options...
A-L-E-K Posted February 23, 2012 Share Posted February 23, 2012 Some pretty cool waves showing up on the DVN 88D. BI would appreciate this. awesome, final totals might not get out of control, but some of us should see some wild weather tonight. FWIW anyone with hi-res radar apps, feel free to post screenshots Link to comment Share on other sites More sharing options...
baroclinic_instability Posted February 23, 2012 Share Posted February 23, 2012 I am going to argue against that...only gulf connection is 850. Vort max coming out of wyoming/nebraska area I really don't want to clutter the thread with this disco, but this is not a clipper by any definition. Clippers are low amplitude waves along the polar front. A classic config is a nearly straight polar jet featuring a low amplitude disturbance along it with a sharp low level baroclinic zone. They have an incredibly fast phase speed due to their short wavelength config aloft (and total lack of LHR given their dry nature...hence cyclogenesis along the polar front is steady state...not nonlinear) and remain short wavelength features through their life span. A large upper level rossby wave (like this storm) is the opposite of a clipper. This is also why this storm is so slow to develop. Driven strongly by jet scale forcing along an amplifying upper level trough. Saying the "mid level wave ejects WY/NE" really means nothing. Link to comment Share on other sites More sharing options...
kevlon62 Posted February 23, 2012 Share Posted February 23, 2012 Check out the hook while my DJ revolves it. Last ones before dark. Link to comment Share on other sites More sharing options...
Northern_IN_Wx Posted February 23, 2012 Share Posted February 23, 2012 Not a clipper Link to comment Share on other sites More sharing options...
cyclone77 Posted February 23, 2012 Share Posted February 23, 2012 Check out the hook while my DJ revolves it. Last ones before dark. Very nice!! Link to comment Share on other sites More sharing options...
dmc76 Posted February 23, 2012 Share Posted February 23, 2012 OK sorry for opening up a can of worms. Quick question: Why was there moisture moving into N.Dakota last night from the NW? What kind of low was that. To me it seems like a disturbance from Sask met up with a low coming out of the rockies. Link to comment Share on other sites More sharing options...
turtlehurricane Posted February 23, 2012 Share Posted February 23, 2012 Some pretty cool waves showing up on the DVN 88D. BI would appreciate this. They're standing gravity waves at that, so they're propagating directly opposite to the flow at the exact speed of the flow. Know what else goes exactly opposite to the flow? A mountain range! Water vapor suggests these waves are coming directly off a range in the Rockies. I'm not 100% sure about this, but if it's true there is some incredible ducting going on in some layer. http://mapmaker.aos.wisc.edu/scr3/sat/g8/g8wvflash.html Link to comment Share on other sites More sharing options...
SpartyOn Posted February 23, 2012 Share Posted February 23, 2012 Trying to figure out how I'm going to get my sleep in tonight... I can't exactly just crash early since I'm in a dorm with another guy, probably wouldn't like it if I turned the lights off at midnight. When do you guys think the best chance for TSSN will be for SEMI? I've swear I've always happened to be at some noisy indoor event every time theres thundersnow in the area and I've never heard/seen it (#firstworldproblems) Check the most recent DtX AFD I thought it stated 5z as the start of convective fun. Basically middle of the night weeee hours of the morning. Link to comment Share on other sites More sharing options...
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