Jmister

23 hours ago, JC-CT said:

500mb heights - today's 6z Euro at hr 90 vs today's 0z Euro at hr 96

I downloaded grib files directly from ECMWF (so lower res version)

Need to figure out how to add labels and such

12 hours ago, PhineasC said:

My man @Jmister can help.

Have you looked into OpenGrADS at all? It's a versatile visual tool for all things grib.

http://opengrads.org/

FYI, https://weather.cod.edu/forecast/ is getting GFS data just fine.

4 minutes ago, SnowDreamer said:

I notice that showing a lot of extra precip around the fringes. Do you find that your product shows HRRR underestimating the outer-edges of precip. often, or is this unusual?

I think some of the fringes differ because the actual radar may show very light returns (virga) that the model doesn't have.

It's more useful to look at the difference in heavier returns. I may filter the images to only show 15 dbZ or higher instead of 5 to eliminate non-precipitation.

As the storm begins to approach the area, here's a shameless plug for my tool to help ease your radar hallucinations. Specifically for the HRRR simulated radar.

jmmweather.com/hrrr

The green regions in KY, NC, WV show that it's under-doing the precipitation extent there right now.

Good luck to you all down here!

Since it's crunch time and we're using a lot of insight from the HRRR, my tool may come in handy to determine radar hallucination from reality:

And a quantitative difference:

I have this updating every 15 minutes at jmmweather.com/hrrr 

Just now, PhineasC said:

@Jmister looks like a good storm for you man!

Hoping so! I keep following this sub-forum closest because if the models are good for you guys, it's good news for me in the PHL area haha.

Lots of good entertainment here too.

Here's a tool I made that compares the HRRR radar to the observed radar. It can be useful for determining how the most recent run is doing with precip placement.

As you can see, the 02z HRRR does not have the light returns as far north as they actually are.

More images can be found here https://jmmweather.com/hrrr/

Definitely jealous of you true Central PA guys this storm! 

I came to State College in 2007 from PHL and was expecting to get pummeled by I-95 runners but instead missed out on 3 of the top 5 PHL snows ever while the single best storm in UNV my ten winters was 14" in Feb 2010 (PHL recorded 28" ).

Now that I'm back in the PHL area, these are the kinds of storms I hoped for back in State College. Figures.

Enjoy!

Just now, Windspeed said:

Still inbound..

The pressure gradient force is absolutely nuts in this. Recon is measuring 1003 mb only about 30-40 miles out from the eye which is at least 928mb. That's going to make for incredible wind speeds.