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Dec 11-13 MW/Lakes/OV snow event part 4


Hoosier

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I'm guessing the coupe is compared to the southerly models and the many people aligning themselves with those models last night. Ignore bowme's last post. He tends to overreact....along with Harry.

Might want to not call out other posters in a discussion not involving them...

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cudos...great discussions & analysis, thank you

I'm guessing the coupe is compared to the southerly models and the many people aligning themselves with those models last night. Ignore bowme's last post. He tends to overreact....along with Harry.

It is all about weather discussion. I think something Bowme doesn't understand is forecasting requires some level of confidence which may come across as pompous. Regardless, I never offered eveidence against his wish-cast and was mainly discussing the southern MN snow potential for the next 12-18 hours. Apparently that was not understood.

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09Z surface analysis still deeper and farther NW than both. Also the PV anomaly is still tracking NE so no reason this surface low won't track a tad more E-NE before turning straight E. Also deformation band is farther NW than both GFS/NAM.

WV loop and PV anomaly. Circulation still heading north-east along the MN/IA/NE/SD border.

http://rap.ucar.edu/...e=-1&duration=4

it lookslike the lowwas right on track but the past few hours took a left turn

edit:at least the surface low

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Might want to not call out other posters in a discussion not involving them...

lol...I consider this the same extended discussion that began with his post hours ago, but yeah probably a poor and unnecessary choice of words.....Anyways it's still snowing.

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He obviously thinks your just trying to rub the dirt in others faces here because your actually in the heart of the heaviest predicted snow. But your right about the low track, but something this minor doesnt deserve repetitive attention as your doing.

Certainly not the case, I never hope against hope for more snow nor do I hope others receive less than they wish. I definitely don't rub it in since I know everyone will eventually see their share, and honestly, forecasting and synoptic/dynamic meteorology is far more interesting to me than the actual snow itself. I hope my general enthusiasm for weather shows regardless of where the hit is.

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Well there it goes. That shortwave/IPV anomaly is really kicking off that mid-layer frontogenesis over almost all of southern MN. Look how fast radar filled in the last 20 mins..

Perfect timing too...ended up in the dry slot for about half an hour

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Okay glad I wasn't being a weenie and just seeing things :lol:

A good way to track surface lows in the short term is to assess the frontal zone/baroclinic zone. Of course the position of the wave matters, but in the near-term, the surface low will propagate along the boundary as the upper wave "rides" the baroclinic zone. So, for instance, if the front is acting as a warm front and lifting NE with time, then you can expect the low to track along the warm front but with a NE component (predict how far the front will propagate...can also use surface pressure falls). If, in this case, the front is stalled or acting as a staionary front, expect the low to track right along the position of the stationary front. Using this alone, it seems pretty reasonable the low may track a tad NE for a little bit then track E and eventually SE along the front.

post-999-0-01504600-1292070919.gif

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A good way to track surface lows in the short term is to assess the frontal zone/baroclinic zone. Of course the position of the wave matters, but in the near-term, the surface low will propagate along the boundary as the upper wave "rides" the baroclinic zone. So, for instance, if the front is acting as a warm front and lifting NE with time, then you can expect the low to track along the warm front but with a NE component (predict how far the front will propagate...can also use surface pressure falls). If, in this case, the front is stalled or acting as a staionary front, expect the low to track right along the position of the stationary front. Using this alone, it seems pretty reasonable the low may track a tad NE for a little bit then track E and eventually SE along the front.

post-999-0-01504600-1292070919.gif

The low pressure reading in Algona Iowa would support this. Algona is east northeast of Cherokee about 55 miles south of the Minnesota/Iowa border.

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The low pressure reading in Algona Iowa would support this. Algona is east northeast of Cherokee about 55 miles south of the Minnesota/Iowa border.

I tlookslike the front is along i-88 in IL east to ENE winds north of it and ESE/SE winds south

watch for wind directions in MLI..to see if they veer more SE

right now due east at 90 degrees

edit...just turned se 13z

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Perfect timing too...ended up in the dry slot for about half an hour

Hahaha! That's alll? Try 6 hours here..we got zero snowfall last night, but we did receive just over a tenth of an inch of freezing rain..I live in a area very prone to power outages during high winds, so this is just icing on the cake.

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I'm guessing the coupe is compared to the southerly models and the many people aligning themselves with those models last night. Ignore bowme's last post. He tends to overreact....along with Harry.

Oh give me a damn break.. This coming from the guy sitting in MN who would benifit from a track further north. :lol: I stand by what i said too. So far so good.

Oh and about that track north..

Looky here..

pmsl.gif?1292071070498

And gee what model had it at this spot at 00?

00_054_R1_north@america_I_4PAN_CLASSIC@012_012.jpg

Then there is this..

vadv_sf.gif?1292071294269

oops.. A nice miss by the NAM..

nam_500_012l.gif

gfs_500_012l.gif

Need i post the 700 maps? :rolleyes:

Very easy to set a picture for what ONE WANTS to see.

Some of you need to come off of it. I'll leave it at that..

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Hahaha! That's alll? Try 6 hours here..we got zero snowfall last night, but we did receive just over a tenth of an inch of freezing rain..I live in a area very prone to power outages during high winds, so this is just icing on the cake.

The southern edge of the band just stayed over me most of the night, though from 4-6 the snowfall wasn't particularly heavy. I'm still waiting for observers to report their totals in Chaska, Carver, and Waconia...and for the updated total from the nws since I only have there total from midnight..

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Oh give me a damn break.. This coming from the guy sitting in MN who would benifit from a track further north. :lol: I stand by what i said too. So far so good.

Need i post the 700 maps? :rolleyes:

Very easy to set a picture for what ONE WANTS to see.

Some of you need to come off of it. I'll leave it at that..

I thought the low tracking up to towards where it is then tracking east was the northern track . I stand corrected then. I already posted that my mentioning your name was not reallly necessary.

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