Story Created:
Mar 2, 2008
Story Updated:
Mar 3, 2008
***UPDATED at 12:00am***
A large area of heavy rain moving through the Ozarks overnight. Take a look at the latest image from Storm Vision 3D Doppler Radar.

With February being the wettest month on record for Springfield, the already VERY saturated ground can't take much more and flooding will be likely. Several counties are now under Flood Warnings.

Kevin Lighty
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Well it sure has turned out to be quite the weekend across the Ozarks as we saw an incredibly warm day with sunshine through most of the morning and afternoon before clouds have started to move back in. We have quite the complex storm forecast to make over the next 48 hours so hold on tight, it's gonna be a bumpy ride.
First of all take a look at high temps across the region.

Coupled with a very strong southwesterly flow all day it sure felt nice, but winds were quite gusty. A look at wind gusts from the 3pm hour. Whoh look out Joplin.

So as we all know when we get days like this that are out of the ordinary for this time of the year, something has got to give. Mother Nature likes to balance things out and take ya flying back in the other direction, and that is exactly what is going to happen.
First of all due to the already saturated ground and the enormous amount of rain showing up on forecast models a Flood Watch is in effect.

Not only that but also a Winter Storm Watch to follow.

First off we will talk about our chances for any severe weather. Well the SPC does have parts of the Ozarks basically west of highway 65 under the slight risk to catch some severe storms this evening as moisture and little to no cap with some lift will kick of storms with marginal instability of near 1000 J/KG.

While we do have the threat for strong storms, it mostly looks like a damaging wind and hail threat, and only the slight threat of a tornado. Time frame of this with last from late tonight as storms fire up and overnight.
Heavy rainfall will accompany any of these storms as ample moisture return will be available as a wide open gulf surges moisture northward.
NAM Total Precip

GFS Total Precip

As you can see the NAM is putting out more precip than the GFS, and the GFS is also lagging back the cold air arrival a little longer than the NAM, thus taking snow totals down on the GFS solution.
Four panel look at surface prog chart from tonight through Tuesday. Click on images for a bigger view.


Notice how long moisture sticks around.
Here is a look at the NAM. Again click on images for a bigger view.


Notice the transition from the rain into a freezing rain and sleet mix during the day tomorrow, to all snow by Monday night and into Tuesday.
The track of our low is a classic setup for good snow across the Ozarks. Below is the forecasted track.
A typical low will produce the heaviest snow from 100 to as much as 250 miles northwest of its track.

The HPC forecast for snow of at least four inches. Green outline is 40% chance.

As far as model output on snow totals, the NAM goes crazy and the GFS much lighter.
NAM showing from 12-24".

GFS Shows Much Less and closer to 3"-6".

Here is a look at the NAM Bufkit Rain is green, red is freezing rain, orange is sleet, blue is snow. As you can see the Snow arrives earlier and lasts longer with the NAM model.

My thoughts on snow is that there will be an area where a very heavy band of snow will setup. Right now Branson, up through Ava, Mountain Grove, Houston to Salem could see the heavier band of snow as of right now. The thing is there will be a very very sharp cutoff from where that heavier band sets up in relation to where lighter amounts will be. So much to the point where one part of the county may received 8" of snow and on the opposite side maybe only 2" of snow. With that being said it is very complicated to forecast exact snow amounts since it will all depend on where the heavy band will be. In that heavier band up to a foot of snow is not out of the question while most other areas may receive 3"-6" of snow.
I want to show what our futurecast model is showing as far as snow goes. It looks a little more like the GFS. I also think it gives a good representation of what I mean by 3"-6" likely in several locations, with some area that will see locally higher amounts. So just look at the graphic below, don't focus on the numbers but more of the trend of where the heavy band could setup. Also remember that movement of the low 20 miles north or south drags that heavy band north and south as well, so it is a very "fluid" situation.

As things becomes more clear we will update the blog as needed.
Chief Meteorologist Kevin Lighty
Monday, Mar 3 at 12:11 AM Kevin Lighty wrote ...
A quick update has been posted.
Monday, Mar 3 at 12:02 AM Kevin Lighty wrote ...
Michelle, I wouldn't focus on specific amounts just yet. Like I said in my blog post it is all very dependent on the track of our low and a shift either way could greatly diminish or increase snowfall over your, or anyone's area, for that matter. I will say that you do have a good chance of picking up a good snow up that way.
Sunday, Mar 2 at 11:54 PM Michelle from Waynesville wrote ...
Hi Kevin and Josh, just wondering, does the dark blue on Pulaski county mean we could get more than Lebanon?
Sunday, Mar 2 at 11:48 PM Mark in springfield wrote ...
Dad just found an awesome site. check it out...Shows weather stations in the area with a radar overlay, with live updates on temps and windspeeds. http://www.wunderground.com/stationmaps/gmap.asp
Sunday, Mar 2 at 11:43 PM KB wrote ...
Anyone in Mt Vernon on - if so -what's it dong there now?
Sunday, Mar 2 at 11:11 PM Halltown Fireman wrote ...
Just started raining here. Light but getting stronger. Also seeing lots of lightning and can hear thunder to our west.
Sunday, Mar 2 at 10:28 PM Josh deBerge wrote ...
Mark...there just is not a lot of instability...in fact the nearest is about 250 j/kg in southern McDonald County. A few high wind reports are possible because of some impressive wind fields aloft, but the main threat will be heavy rain. Model data from the 00Z run of the GFS is currently coming in.
Sunday, Mar 2 at 10:03 PM William wrote ...
Hey Karen I will do the best that I can to send it up the Highway 5 area to you. I just can't wait to see it snow a big one. It seems like it has been years since the last BIG one. Well I will blog as much as possible to get you snowfall amounts here in Lebanon and in the Conway area. Blog you later.=)
Sunday, Mar 2 at 10:03 PM marshfield mom wrote ...
well if we dont get some good snow out of this im moving north.lol. im excited about your snowfall map. right now looks like marshfield in right in the middle of the good stuff. keep up the great work
Sunday, Mar 2 at 9:57 PM Mark in springfield wrote ...
Correct me if I'm wrong people, But i believe the gfs model runs are at Midnight=0z, 6 A.M.=6z, Noon=12z and 6P.M.=18z
Sunday, Mar 2 at 9:54 PM Mark in springfield wrote ...
And a question for Josh or Kevin. What are your thoughts on the severe storms in oklahoma headed this way? Will they hold up in the S.W. Mo air tonight?
Sunday, Mar 2 at 9:53 PM TJ wrote ...
when will the new models come out?
Sunday, Mar 2 at 9:52 PM Mark in springfield wrote ...
I see that too dylan on the 18z run of gfs. Its pulling the freezing line in earlier. And nws is putting that possibility out there in their forecast discussion. Gfs and Nam appear to be coming together and hopefully they'll meet in the middle. If you look at the satellite loop you can see that the models are matching it step by step. Nams just showing more precip. Very exciting storm and no matter how it turns out I'm having fun following its life cycle.
Sunday, Mar 2 at 9:38 PM Karen wrote ...
William im with you, been waiting for a big one, my kids still need to build that snowman, and if we get enough, i want em to build me a snow family!!Ha,Ha, so, if laclede county starts getting some please..........be kind and send some down Hwy 5 to Camdenton, it would be much appreciated.
Sunday, Mar 2 at 9:32 PM Dylan wrote ...
Dorothy...One good website that I check out is http://wxcaster.com/ you can look at different forecast models and view what is expected regionally or throughout the whole United States. That's where you can access the particular model that shows 20"(NAM)Although...realistically about 3 to 6 inches I think. Hope that helped!!!
Sunday, Mar 2 at 9:25 PM Valerie in Bolivar wrote ...
Hi Marc in Bolivar. I'm doin' everything that I can, but in the end, it's up to that snowmaker up there who hasn't been listening to us. Perhaps this time! Keep lookin' up!! :)) Friend, Val
Sunday, Mar 2 at 9:18 PM William wrote ...
With the rain coming first, won't that cool the ground down making it easier for the snow to stick? Well I hope that the Laclede County area is right in the middle of it all, I have been waiting for the snow all winter. Pray that it gives us alot of snow.
Sunday, Mar 2 at 9:13 PM Josh deBerge wrote ...
Dylan...I am not sure the changeover will occur that early, but it will be close. And the latest NAM which is in it's good performance time has the snow lasting through Tuesday for points to the east. We'll be analyzing the newest data and either update tonight or it will be part of tomorrow morning's post. Dorothy...e-mail me: jdeberge@kspr.com and I can help you out.
Sunday, Mar 2 at 9:10 PM Dorothy in Nixa wrote ...
Dylan, where are you going to get this info? I have gone to some of the sites that have been given, but don't know how to get to the current models once I get there. I'm trying to learn this stuff so I can teach to my children (I homeschool them).
Sunday, Mar 2 at 9:06 PM Meshel wrote ...
When should we expect the storms tonight?
Sunday, Mar 2 at 8:51 PM marc from Bolivar wrote ...
alright Val it's time do the snow dance i'm waiting for more than six inches and it's up to you girl.
Sunday, Mar 2 at 8:50 PM Dylan wrote ...
I don't know what you guys are looking at...but I am still certain that this storm is going to produce a good snow. In fact, the latest models support a change over before the lunch hour in Springfield and once the atmosphere cools significantly w/the cold front more snow is likely Monday night/Tues with the main upper level low.
Sunday, Mar 2 at 8:48 PM Kevin Lighty wrote ...
Shane, very well said. Sometimes we all get caught up in it all and worry so much whether or not things will verify, just sit back, relax and let mother nature take her course! If we get it we get it, if we don't the sun will still come up tomorrow!
Sunday, Mar 2 at 8:44 PM Shane wrote ...
Not a hundred percent sure yet who will get the big snows but I must say that if you enjoy weather and forcasting you have got to enjoy this storm even if you dont get snow in your back yard out of it. This is one of the most interesting set ups and coolest storms to try and figure out. I know not everyone will get what they want out of this storm but WOW, Just step back and think what an awesome time when you go from 70plus degrees to Heavy snow for some in the area in a 24 to 48 hour period
Sunday, Mar 2 at 8:42 PM Eric wrote ...
Due to the warm weather over the weekend and very little snow I forsee there WILL NOT be any road problems in springfield this week
Sunday, Mar 2 at 8:33 PM John wrote ...
Will the warm temps over the weekend affect how much snow accumulation will occur on roadways?
Sunday, Mar 2 at 8:22 PM Eric wrote ...
IMHO I think in the springfield area east the cold air in the atmosphere will not be thick enough to support snow but maybe sleet and freezing rain the will not accumlate I think alot of people will be dissapointed in what we get including myself.
Sunday, Mar 2 at 8:01 PM Josh deBerge wrote ...
Mindi...we'll have a post first thing tomorrow morning and updates throughout the day into Tuesday. Very complex scenario here and we'll be watching things closely.
Sunday, Mar 2 at 7:57 PM Kevin Lighty wrote ...
Yea by no means have we ever said or forecasted 24" of snow with this system. We have just shown you what ONE of the models has shown. I feel that most people will be between 3"-6" with some isolated areas that could find more, say upwards of 12" at best. I don't buy the 24" at all.
Sunday, Mar 2 at 7:48 PM Mindi in Nixa wrote ...
I look very forward to tomorrow's post...should be a very interesting day. I will send in snow reports as I can.
Sunday, Mar 2 at 7:36 PM Dylan wrote ...
What makes you think this? There is a strong cold front going to come through.
Sunday, Mar 2 at 7:35 PM Justin of Nixa wrote ...
Wow, it went down quite a bit.
Sunday, Mar 2 at 7:25 PM Big Ben wrote ...
I have a feeling the next 3 model runs is going to push the bulk of the snow furthur east leaving springfield and north with very little snow.
Sunday, Mar 2 at 7:21 PM Brian A wrote ...
I have a feeling its going to be mostly a rain in the springfield area we will be lucky to get a couple of inches of snow
Sunday, Mar 2 at 6:39 PM TJ wrote ...
how much snow for OZARK? could we be in the heavy band?
Sunday, Mar 2 at 6:35 PM Valerie in Bolivar wrote ...
Thanks for the post Kevin. Will be checking in for updates. Looks more sure right now, but as always, weather does not listen to man, man must listen to it. Have a good night-I'll be checking back for updates. Keep lookin' up!! Friend, Val
Sunday, Mar 2 at 6:21 PM Dylan wrote ...
So 3-6 inches looks like a good bet for pretty much all of the Missouri Ozarks? How about Laclede County and Lebanon? So you don't think the NAM will come true?
Sunday, Mar 2 at 5:53 PM briana wrote ...
either way....most of us are gonna get SOME snow....i think?!Hopefully! It was beautiful today!!!!!
Sunday, Mar 2 at 5:50 PM Ezra wrote ...
Im so glad springfield is not going to get much snow!!! Thanks Kevin!!!
Sunday, Mar 2 at 5:44 PM Mark in springfield wrote ...
The thing to remember is that even though nam is trending s.e. a little on one run doesnt mean much. Nam is also saying 20" which is insane!!! Gfs is still holding its ground and is usually a better model for consistently being right.It also doesnt take much for the snow to start sticking on grassy surfaces. Just the grass to reach freezing. It will probably hold off on coating the roads for awhile. And of course remember that we are still 2-3 model runs out from when the winter part arrives
Sunday, Mar 2 at 5:41 PM Randy wrote ...
What time do you expect the rain to change to snow tomorrow?
Sunday, Mar 2 at 5:36 PM Big Ben wrote ...
Looks like springfield might get a dusting of snow
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