December 2020 - General Weather Discussion

[SEMIweather]

Models mostly seem to be coming into agreement that we'll be getting an advisory-level snowfall, centered around the 6 a.m. - noon period on Sunday. It is an Oklahoma winter weather event, so of course there's going to be some bust potential, but it seems to be a reasonably straightforward forecast compared to most of our events given that precipitation type won't be in question, as temperature profiles definitely support a quick changeover from rain to snow (no ice potential with this system, thankfully). The main question at this point seems to concern where the heaviest banding ends up occurring, which will probably take another few model runs to resolve.

[Anonymous.]

Forecast models coming in hot since last night with a near perfect track for a wet snowfall across the main body of OK. Emphasis on corridor just north of I-40.

Exact amounts will depend on speed of the low and the quickness of the rain-snow transition, but most signs point toward a solid shot at somewhere getting a swath of 3-6" of heavy wet snow.




NAM


GFS

[Anonymous.]

NWS has issued Winter Storm Watch for NW quadrant of OK and Winter Weather Advisory for the surrounded areas.

This map is a real-time feed from Mesonet and will update as advisories are changed.

[Anonymous.]

HRRR 18Z will be in in a few hours and will likely paint a good idea for amounts. Exact location of the heavy snowbands is impossible to predict. The best guess is we will have 1-2 heavy bands setup from SW to NE as the low moves across the state. So depending how the bands morph/pulse throughout the day, some areas could see locally higher totals if under heavier bands for extended periods.

The general outlook for OKC looks like 2-4 inches.

[BG918]

Interesting to see the impact of the higher elevations in the Ozarks. 2-4” for areas lower than 1500 ft and 4-6” for areas over 1500 ft in NW Arkansas/far NE Oklahoma.

[SoonersFan12]

When is it supposed to start snowing?

[Anonymous.]

Latest runs indicate heavier snow over a larger area. Winter storm warnings have been extended a row of counties further east.

This is likely a good indication of snow amounts according to the short range models.

[Anonymous.]

Winter Storm Warning has been expanded again further S and E, including OKC through Tulsa to encompass all points NW of that.

This is one of the best tracks for a heavy OK snowfall that I have seen in over a decade.

[Pete]

Just now at my house:

[educator1953]

Lucky you! Wish we had some down here in Duncan.

[PoliSciGuy]

Solid 5 inches up here by Penn and 164th. Now to enjoy a day of football, food and relaxation guilt free. Drive safe folks!

[Plutonic Panda]

This is a good day to drink some nice spiced eggnog.

[Libbymin]

This is a good day to drink some nice spiced eggnog.

No joke. THIS is the kind of winter weather event I can get behind. Make some chili, watch some football or binge a tv show, stay off the road, all while keeping power in our house and not losing tree limbs. Plus I don’t have to work.

[5alive]

^^^^

[Pete]

Actually provides a very gradual, soaking moisture which is badly needed.

[Pete]

One of my huge pet peeves...

Why on earth do we plow roads, sidewalks and parking lots with this type of snow??

If they would have just left it alone, it would all be melted but now there will be piles that gradually thaw and then freeze, then thaw... And what would have been gone in a day will now stick around and make a mess for a week.

[5alive]

^^^^

[BoulderSooner]

One of my huge pet peeves...

Why on earth do we plow roads, sidewalks and parking lots with this type of snow??

If they would have just left it alone, it would all be melted but now there will be piles that gradually thaw and then freeze, then thaw... And what would have been gone in a day will now stick around and make a mess for a week.

Because lots of people have to get out every day. For work. Snow routes for emergency’s. Ect.

[Pete]

Today's snow was never blocking anyone from getting out or going to work or impeding emergency vehicles.

[BoulderSooner]

Today's snow was never blocking anyone from getting out or going to work or impeding emergency vehicles.

Even with the plowing. There were a bunch of wrecks in Edmond and on I44 today.

[mugofbeer]

Better to plow a little too often than not enough.

[SEMIweather]

FYI to everyone who has to drive later tonight or tomorrow morning, be very careful of black ice. Roads are just wet right now but it's going to drop well into the teens overnight so everything is going to refreeze.

[SoonersFan12]

FYI to everyone who has to drive later tonight or tomorrow morning, be very careful of black ice. Roads are just wet right now but it's going to drop well into the teens overnight so everything is going to refreeze.

Thank you for letting me know, I have to go to work tomorrow unless they call me asking me not to come in

[Bunty]

The head of Stillwater Emergency Management Agency gave a Facebook Live view of how the snow was like in Stillwater Sunday morning from W. 6th to Downtown here: https://www.facebook.com/StwSema/vid...18547061628754

[Anonymous.]

Focusing attention to Tuesday into Tuesday evening. Very similar track for another upper level low across the state. However, there will be less moisture to work with across the region so QPF is forecast to be lower. This storm will move on later to likely become a major winter storm event for the NE parts of the country.