Wintry Dec 8-10th Winter Storm

[Tarheel1]

Here's a couple of frames from the 00z RPM. Attached is the onset of precip and a frame from when precip is heaviest ( last frame).

I think it was Jan 10/11, a widespread, colder storm was working in from GA and had the “ finger” of precip arrive way ahead of the storm and pummeled Augusta, looks similar, but more N obviously on the RPM

 

[Tarheel1]

I don’t see a time stamp? What time is the top image? Thanks

 

[bouncycorn]

I don’t see a time stamp? What time is the top image? Thanks

12/08/18 at 2030z, aka 3:30pm

 

[Snowflowxxl]

I think it was Jan 10/11, a widespread, colder storm was working in from GA and had the “ finger” of precip arrive way ahead of the storm and pummeled Augusta, looks similar, but more N obviously on the RPM

Yep it arrived early and the TV Mets had to scramble early. Luckily it was a Sunday so not too many people on roads. It got here like 2-3 hours than projected

 

[Webberweather53]

Do you have the ULL look @H5? Did it do anything with that? Looks interesting at hr120 on TT

It looks a little further south this run, hence it snows in the midlands this time but we're a long ways from figuring this out.

 

[Tarheel1]

I guess if I have to settle....

 

[bouncycorn]

I must say, Atlanta's forte is NOT it's tv meteorologists and their forecasting ability. Seems they show the model that has least impacts with each event. This has caused issues more than once!

 

[Meteorologist1999]

Here's a couple of frames from the 00z RPM. Attached is the onset of precip and a frame from when precip is heaviest ( last frame).

How did you get those maps?

 

[Brent]

Here's a couple of frames from the 00z RPM. Attached is the onset of precip and a frame from when precip is heaviest ( last frame).

ooh thats close to being something here too

 

[Round Oak Weather]

I don’t think the NAM and FV3 are wrong maybe to much but not wrong. Maybe even handeling it best

 

[bouncycorn]

How did you get those maps?

You can find the maps of hires RPM, 12km RPM, and DeepThunder (ibm's new model) at modellab.wsi.com

 

[$alt]

So, the 00z NAM and the RPM are showing Wintry weather pretty deep into the ATL and Midlands of SC areas.

Reminder, the RPM is basically the WRF that WSI has customized extensively.
You'll be able to see the WRF-ARW and WRF-NMM out to 48 hours on Tropical Tidbits (or other sources).

 

[Jimmy Hypocracy]

Here's a couple of frames from the 00z RPM. Attached is the onset of precip and a frame from when precip is heaviest ( last frame).

There’s the smurf finger of pain

 

[Webberweather53]

Lawddddd have mercy, this front-end thump of snow & sleet is going to be absolutely insane in upstate SC and NC, the models look much more impressive than the one in the Feb 12-13 2014 event which in its own right was nuts.

 

[SoutheastRidge]

I must say, Atlanta's forte is NOT it's tv meteorologists and their forecasting ability. Seems they show the model that has least impacts with each event. This has caused issues more than once!

You are so right. We really need some of the people in here to take their place. Its so embarrassing that such a huge metro cant find better meteorologists.

 

[bouncycorn]

Also for what it's worth, Ryan Maue's company's model "SuperSwiss" looks very similar to the RPM I sent. Unfortunately i'm not allowed to share pics but it has .25" of ice widespread through metropolitan Atlanta through mid afternoon Sunday with temps 29-31F (no sign of them retreating either)

 

[$alt]

Data may be arriving late still, for the 06z runs and onward. Tonight's HRRR runs and NAM have already been 31-45 minutes late earlier.

 

[Snowflowxxl]

Data may be arriving late still, for the 06z runs and onward. Tonight's HRRR runs and NAM have already been 31-45 minutes late earlier.

Yep no way I can stay up for the 6z NAM then. It won’t be finished till 345

 

[bouncycorn]

06z RPM run just started and it's out to hour 8. I'll post updates but keep in mind that the RPM takes *forever* to release. Longer than fv3.

 

[deltadog03]

It looks a little further south this run, hence it snows in the midlands this time but we're a long ways from figuring this out.

Ty sir. Ya on freebie site it appeared to be slower and further SW