Jump to content
  • Member Statistics

    17,509
    Total Members
    7,904
    Most Online
    joxey
    Newest Member
    joxey
    Joined

April Discobs 2023


George BM
 Share

Recommended Posts

12 hours ago, Eskimo Joe said:

Not sure how accurate this is, but implies a soaker ahead.

 

I do know something about this.  NCAR is running FV3-based ensembles at 3km over the US (13km global) out to 204 hours and MPAS ensembles at 3km over the US (15km global, tapered) out to 132 hours.  Just from a couple of days of looking, it seems like the probability matched mean is generally higher than the straight ensemble mean.  Here is where we are for the first event:

FV3

FV3.thumb.png.7ea8c6f683f1ad1ad3d850c9ac6f1d01.png

 

MPAS

MPAS.thumb.png.7f8dde840701d0f6eebb91f6feb26c6b.png

  • Like 2
  • Thanks 2
Link to comment
Share on other sites

14 minutes ago, mattie g said:

2" of rain over 3-4 days should be nice, even if the weekend won't be.

Agreed. It's been so dry that some of the waterways in Montgomery County have dropped below the level for our flood gages and are reading zero water level. When we had the rain last Saturday, there were watersheds so low that it took close to 4 hours to even see a small response on portions of Great Seneca Creek and Cabin John Branch.

Link to comment
Share on other sites

21 minutes ago, Eskimo Joe said:

Interesting @MN Transplant. We'll see how accurate this is for the weekend. Maybe another tool in the kit for future events?

Right now they are only going to be running this during the Spring Experiment period (mostly May), but it is forward-looking towards what we will see in the future with modeling.  

  • Like 1
  • Thanks 1
Link to comment
Share on other sites

1 hour ago, mattie g said:

2" of rain over 3-4 days should be nice, even if the weekend won't be.

Agree also.  I'm in a bit of a micro-climate where higher elevations from my W around to my NE result in a "shadow" effect where lines and clusters of spring/summer thunderstorms frequently miss or split around.  I need to cash in on this synoptic rain

  • Like 1
Link to comment
Share on other sites

3 minutes ago, mattie g said:

Things are shaping up for a pretty decent beat down.

Seems that way. There was some headfaking with whether the Sunday-Monday storm would stay more OTS, but looks like not. Long duration should help this soak in and not just run off. 

Link to comment
Share on other sites

4 hours ago, BlizzardNole said:

I've been watching that as we have a big family event Saturday -- it's looking more and more like we get a break in the rain during the day, and maybe if we're lucky we'll have a few peeks of sun.  Temps look nice

 

4 hours ago, Eskimo Joe said:

18z Sat to 00z Sunday look fairly rain free, but clouds might hang tough up your way.

 

4 hours ago, mattie g said:

18z 3km NAM is a beatdown on Friday.

@mappy...it's looking like Saturday should clear up before the rains come back for Sunday-Monday.

Thanks all. Kid has an outdoor dance thing from 12-3, hoping it stays dry enough that the event isn’t cancelled.

Link to comment
Share on other sites

1 minute ago, Eskimo Joe said:

Short term guidance starting to highlight some beefier totals along the US 29 corridor, somewhere between Laurel and Fairfax. Wonder if there's some kind of low level convergence being picked up by the HRRR/NAM family?

Yeah, the big totals are coming from some training that goes on in the afternoon on the HRRR.

Link to comment
Share on other sites

  • WxUSAF unpinned this topic

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...