Weather Thread 1/30-2/2: Possible Major Storm

snowcraig2.0

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Quote de <strong>snowcraig2.0</strong> </div> <div class="post-quote"> <div style="font-style:italic">My wife is stuck in Iowa City as well.Did you remember the kids?</div> <table border="0" cellpadding="3" cellspacing="3" align="right"> <tbody><tr> <td valign="top" align="center"><a href="" name="vB::QuickEdit::2121320"><img src="images/buttons/edit.gif" alt="Edit/Delete Message" border="0"></a></td> <td valign="top" align="center"><a href="#" onclick="vbform.message.value = '
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Everyone is a comedian...
 

FDWxMan

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Jan 31, 2009
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Des Moines
I have some concerns about the convective snow (thundersnow) to the SE.

If big time convection gets going in SE Iowa to St. Louis that will rob moisture from central Iowa and could significantly cut down DSM totals. Of course, the areas that see that convection should very easily hit 10-16. But that should be SE of the Metro.

Even if thunderstorms get really crazy farther south, that could have an impact. Still settling in on 7-10 for DSM at this point

Officially 7.1" in DSM right now.
10-12" from Wayne to Monroe to Wappelo county (Corydon-Albia-Ottumwa)

12-15" Iowa City to Davenport. Ottumwa-Davenport numerous thundersnow/lightning strike reports last night.
 

snowcraig2.0

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Rockwell and Quaker as well as many small businesses are closed in Cedar Rapids. It's a mess. Anyone in CR been out yet?
 

agrabes

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Oct 25, 2006
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Rockwell and Quaker as well as many small businesses are closed in Cedar Rapids. It's a mess. Anyone in CR been out yet?

I'm heading out in 20 mins. My work is not closed, and we have to take vacation if we don't come in. /sigh Guess I'll get to find out how bad it is on 380.
 

brentblum

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Officially 7.1" in DSM right now.
10-12" from Wayne to Monroe to Wappelo county (Corydon-Albia-Ottumwa)

12-15" Iowa City to Davenport. Ottumwa-Davenport numerous thundersnow/lightning strike reports last night.

Golf clap for FDWxMan who pretty much nailed the total from the onset for DSM. You should be on TV dude. :wideeyed: :notworthy:
 

FDWxMan

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Jan 31, 2009
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Des Moines
Golf clap for FDWxMan who pretty much nailed the total from the onset for DSM. You should be on TV dude. :wideeyed: :notworthy:

Thanks Blum, but I think the celebration will be a little curtailed though once the fiancee gets up and notices that not only did i get my car stuck in the driveway, but her's as well at the end of the driveway in the cul-de-sac (or gigantic drift) trying to get to the station this am.

And the little detail that I won't be there to help dig them out until 1:30 this afternoon.

Whoops.

Oh and thanks for the address. You'll get your fabulous save the date magnet any day now!
 

ChrisMWilliams

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Thanks Blum, but I think the celebration will be a little curtailed though once the fiancee gets up and notices that not only did i get my car stuck in the driveway, but her's as well at the end of the driveway in the cul-de-sac (or gigantic drift) trying to get to the station this am.

And the little detail that I won't be there to help dig them out until 1:30 this afternoon.

Whoops.

Oh and thanks for the address. You'll get your fabulous save the date magnet any day now!

Did you see my tweet about you this morning? You will enjoy it.
 

BigBake

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Mar 17, 2006
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U'dale
Is the wind really blowing any large amount of snow around in the dsm metro? I'm looking west out my window and visibility is fine.

Really scratching my head at why metro schools went with closed instead of a delay.
 

Iastfan112

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FDWxMan- nice job on pretty much nailing the totals for Des Moines, lots of 6-8 inch amounts I see measured around the metro.

For the longer range I think you here are heaping a bit too much praise though, in the short term he did a significantly better job than me. Longer range, I think I did a better job emphasizing there would be a decent storm for central Iowa.

There is a chance for light snow Monday, but really the main system/heavy snow, if it were to come together, would be Tuesday, especially noon and later Tue.

Still looks like it should mostly stay to the south as long as the arctic push doesn't get held up on Monday. The colder the better if you want to avoid this snow. I said at noon if the temps for Tuesday's forecast start to creep up from 10-12 degrees and get closer to 20 the next couple days, that would be a bad sign.


Storm did in fact come north, and was a significant problem for the area.

Now for my forecasting difficulties. I was definitely high overall(SE corner was about right, if slightly on the low end of my range). I see 3 things that made my forecast wrong in order.
1. WAA advection snows- these were consistently forecaster to be persistent and strong enough to drop 4-6 inches of snow over northern Iowa, more like 1-4 over southern portions. Very few places was this true, all the decent snow producing bands stayed well north with a few decent snows in far northern Iowa(Emmetsburg, Esterville). I know I had been predicted to get 4-7 with that first amount but ended up with about 2.

2. Winds- the winds did a much more effective job than I anticipated shattering the nice big, faster accumulating snowflakes. The bufkit-cobb projections had figured 15-20 to 1 snowfall ratios for the storm but this did not occur, looking at the CoCoRaHS liquid equivs it looks like most areas were closer to 12 or 13 to 1.

3.Track- was slightly southeast of where I thought. I had pegged the Euro as my model of choice, and whereas I would say it did the best long term job of tracking this storm, its track was a bit too far to the NW than what actually happened by 20-30 miles.
 

cloneswereall

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Is the wind really blowing any large amount of snow around in the dsm metro? I'm looking west out my window and visibility is fine.

Really scratching my head at why metro schools went with closed instead of a delay.


Are many of the side streets open yet? If buses still aren't able to get to stops off the main arteries, what are they going to do, have school and "punish" people that are still stuck at home?

As I say this, I still can't get out because the side streets haven't been plowed yet.
 

BigBake

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Are many of the side streets open yet? If buses still aren't able to get to stops off the main arteries, what are they going to do, have school and "punish" people that are still stuck at home?

As I say this, I still can't get out because the side streets haven't been plowed yet.

Side streets in my U'dale are plowed....two passes now as of 11am. I was only referring to DSM metro schools too.
 

cloneswereall

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Side streets in my U'dale are plowed....two passes now as of 11am. I was only referring to DSM metro schools too.


I know, but if they weren't passable at 830ish, then a two hour delay wasn't enough time to have school today. Buses start rounds for HS around 6-630 to get kids where they need to be by 730. So adding 2 hours, were the streets plowed and clear enough around 8/830?
 

burn587

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Apr 14, 2006
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Here are a couple of pictures of the wind at the Lakeshore taking the surface off the tennis court by my apartment building. Supposedly 70+mph and the way the building was creaking all last night I'd believe it.
 

d4nim4l

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FDWxMan- nice job on pretty much nailing the totals for Des Moines, lots of 6-8 inch amounts I see measured around the metro.

For the longer range I think you here are heaping a bit too much praise though, in the short term he did a significantly better job than me. Longer range, I think I did a better job emphasizing there would be a decent storm for central Iowa.




Storm did in fact come north, and was a significant problem for the area.

Now for my forecasting difficulties. I was definitely high overall(SE corner was about right, if slightly on the low end of my range). I see 3 things that made my forecast wrong in order.
1. WAA advection snows- these were consistently forecaster to be persistent and strong enough to drop 4-6 inches of snow over northern Iowa, more like 1-4 over southern portions. Very few places was this true, all the decent snow producing bands stayed well north with a few decent snows in far northern Iowa(Emmetsburg, Esterville). I know I had been predicted to get 4-7 with that first amount but ended up with about 2.

2. Winds- the winds did a much more effective job than I anticipated shattering the nice big, faster accumulating snowflakes. The bufkit-cobb projections had figured 15-20 to 1 snowfall ratios for the storm but this did not occur, looking at the CoCoRaHS liquid equivs it looks like most areas were closer to 12 or 13 to 1.

3.Track- was slightly southeast of where I thought. I had pegged the Euro as my model of choice, and whereas I would say it did the best long term job of tracking this storm, its track was a bit too far to the NW than what actually happened by 20-30 miles.

OMG! Jealous weather fight!!
 

jsb

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Is the wind really blowing any large amount of snow around in the dsm metro? I'm looking west out my window and visibility is fine.

Really scratching my head at why metro schools went with closed instead of a delay.


The winds originally won't supposed to die down until later today instead it seems as though they slowed down in the middle of the night.

DSM public closed last night, probably a good idea for those that needed to make other arrangements. In addition, the streets are probably doing better just because everyone planned on staying home today. Less traffic on the roads.

Plus, it's February 2nd and the metro schools haven't had a snow day yet. It's probably easier to call it off when they haven't had several days like they did last year.
 

3TrueFans

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Sep 10, 2009
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Ames
FDWxMan- nice job on pretty much nailing the totals for Des Moines, lots of 6-8 inch amounts I see measured around the metro.

For the longer range I think you here are heaping a bit too much praise though, in the short term he did a significantly better job than me. Longer range, I think I did a better job emphasizing there would be a decent storm for central Iowa.




Storm did in fact come north, and was a significant problem for the area.

Now for my forecasting difficulties. I was definitely high overall(SE corner was about right, if slightly on the low end of my range). I see 3 things that made my forecast wrong in order.
1. WAA advection snows- these were consistently forecaster to be persistent and strong enough to drop 4-6 inches of snow over northern Iowa, more like 1-4 over southern portions. Very few places was this true, all the decent snow producing bands stayed well north with a few decent snows in far northern Iowa(Emmetsburg, Esterville). I know I had been predicted to get 4-7 with that first amount but ended up with about 2.

2. Winds- the winds did a much more effective job than I anticipated shattering the nice big, faster accumulating snowflakes. The bufkit-cobb projections had figured 15-20 to 1 snowfall ratios for the storm but this did not occur, looking at the CoCoRaHS liquid equivs it looks like most areas were closer to 12 or 13 to 1.

3.Track- was slightly southeast of where I thought. I had pegged the Euro as my model of choice, and whereas I would say it did the best long term job of tracking this storm, its track was a bit too far to the NW than what actually happened by 20-30 miles.
FDWxMan, you did a good job, and I'm gonna let you finish, but I did the best job predicting the storm on this site.
 

BigBake

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Mar 17, 2006
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The winds originally won't supposed to die down until later today instead it seems as though they slowed down in the middle of the night.

DSM public closed last night, probably a good idea for those that needed to make other arrangements. In addition, the streets are probably doing better just because everyone planned on staying home today. Less traffic on the roads.

Plus, it's February 2nd and the metro schools haven't had a snow day yet. It's probably easier to call it off when they haven't had several days like they did last year.

This I'll believe. It does look like the winds died down pretty early.

Although I think the side streets faired better since the snow came a little slower and more drawn out. It was basically two different 3" snow falls in DSM.