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MO/KS/AR/OK 2020-2021 "Winter" Discussion


JoMo
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14 minutes ago, stormdragonwx said:

Must be having some dry air aloft. Radar showing a lot of snow over me but it's not coming down anymore.

Screenshot_20210102-141323.png

Same for me.  It was some nice mood flakes regardless.  
 

Also, is that the RadarScope app?   I haven’t forked over $10 for it but thinking about it.  Is it worth it?  The Weather Channel and Accuweather app radars suck.  

 

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7 minutes ago, The Waterboy said:

Same for me.  It was some nice mood flakes regardless.  
 

Also, is that the RadarScope app?   I haven’t forked over $10 for it but thinking about it.  Is it worth it?  The Weather Channel and Accuweather app radars suck.  

 

It’s worth it

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On 12/30/2020 at 6:46 PM, Wx 24/7 said:

So while we are eagerly awaiting the 00z model runs, which site(s) do you all use for your model data? Didn't know what the pros/cons are.

Forgot to answer this the other day. 

I typically use Tropical Tidbits for a "quick look" at the American/Canadian models and UKMET. I also like their form of navigation with the back and forth arrows and slider.

From there, Pivotal Weather has the Euro, although the navigation is a bit more clunky. There's also more detail available when it comes to the HRRR and other models as well.

I still use PSU's Ewall for the GFS Ensembles. 

 

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24 minutes ago, JoMo said:

Forgot to answer this the other day. 

I typically use Tropical Tidbits for a "quick look" at the American/Canadian models and UKMET. I also like their form of navigation with the back and forth arrows and slider.

From there, Pivotal Weather has the Euro, although the navigation is a bit more clunky. There's also more detail available when it comes to the HRRR and other models as well.

I still use PSU's Ewall for the GFS Ensembles. 

 

Yeah, I like being able to arrow up and down for the different runs so I can compare and contrast really easily on tropical tidbits.

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Interesting details from ICT NWS this afternoon:
 

LONG TERM...(Tuesday through Sunday)
Issued at 252 PM CST Sun Jan 3 2021

* Wintry precip remains possible WED/THU
* Relatively low forecast confidence during this period

The focus during this period continues to be the mid-week system,
and what impact it will have locally. Ensemble guidance continue to
trend deeper and a bit further S/SW with a s/w that is forecast to
move out of the Rockies and potentially close off over/near the
Central/Southern Plains. Of note, this wave is still well out over
the Pacific Ocean (south of Alaska), so expect changes in the track
and intensity as the system draws near. Of note, ensemble QPF
amounts haven`t shown any significant trends in wetter vs drier.
However, ensemble spread among the various members has increased,
suggesting even less confidence at this juncture.

Given all of the above, I tried not to stray too far from the
previous forecast regarding temps/wind/precip. We`ll continue to
message the potential for some wintry precipitation with this
system, especially late Wednesday into Thursday, but this is far
from a certainty.

If you think the mid-week system carries some uncertainty, then look
no further than the end of the week. It appears a broad trough will
get carved out over the western half of the CONUS. Within this
trough, models show a bunch of shortwaves "dancing around" each
other, giving very low predictability. Perhaps what is most certain
is colder air being locked in place, but that`s about where the
certainty ends. If the cold air does, indeed, remain locked in
place, then any precip that develops late in the week could be of
the frozen/freezing variety.

 

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I feel like model uncertainty has been the name of the game for the last few systems. I know there is always some uncertainty, but this seems to have been a bit more diverse than normal. Part of what makes this hobby fascinating, fun, and also frustrating. :D

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The 12z NAM and 00z Euro specifically produced snowfall across parts of N AR and S MO on Wed night/Thurs. This would be a marginal surface temp situation but it should either be rain or snow as temps look cool enough for one or the other throughout the atmosphere.

Edit: The 12z RGEM has it as well, but has been getting farther west with it in time. Main area over SW MO and NW AR. 

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I've got my eyes fixated on the 9th/10th.

Euro and Canadian take it into Central/South Texas.

GFS runs it through Oklahoma and Arkansas.

Odds favor the former given the Euro's consistency, and how well the Canadian did on this last storm. But it's still 5 days out with alot of things going on right now; so plenty of room for error atm.

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26 minutes ago, StormChazer said:

Looking like I won't have a horse in this race unless things change 170 miles, lol.

But there's definitely potential for you Arkansas and SOMO folks!

 

1610064000-YcR0IwwNfNs.png

6Z GFS

1610128800-BNi5Szm95h0.png

6ZEuro Paints it more North.

1610064000-DJRFhk0wnOc.png

I would like for the ECMWF  scenario to happen and have me fingers crossed.  We've had two non-winter weather advisory/winter storm watch snows so far . 1 1/2"    and on the 2nd 2021 near 1/2" respectively ....wasn't much but sure was fun to watch .  It has been ages since we've had a winter storm watch and very few winter advisory's to speak of .   One of these days it will happen....I Hope!  

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1 hour ago, StormChazer said:

I've got my eyes fixated on the 9th/10th.

Euro and Canadian take it into Central/South Texas.

GFS runs it through Oklahoma and Arkansas.

Odds favor the former given the Euro's consistency, and how well the Canadian did on this last storm. But it's still 5 days out with alot of things going on right now; so plenty of room for error atm.

Well, that changed a bit on the GEM today. Interesting model flip-flops. 

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