Jump to content
  • Member Statistics

    17,793
    Total Members
    7,904
    Most Online
    manaja
    Newest Member
    manaja
    Joined

the October snowstorm Ian Disaster its going to be a long winter thread


Ji

Recommended Posts

  • Replies 968
  • Created
  • Last Reply

If current data verifies, this should be an elevation event from the BR into W.Va., possible above 1000' , and likely above 3000'. GFS and Euro approaching consensus on event, but Euro a little warmer at 6z Sat. with 850 w. of I81 compared to GFS along BR.

it's still at a minimum like 4 days off and at a max 6.. also dependent on a frontrunner storm. im not sure 'consensus' means jack at this point.

Link to comment
Share on other sites

it's still at a minimum like 4 days off and at a max 6.. also dependent on a frontrunner storm. im not sure 'consensus' means jack at this point.

agreed, "consensus" doesn't mean "Jack".... unless it verifies. It is interesting to see the 12z GFS and ECMWF both in the court of support for some type of event for 110 - 130 hrs. If that event occurs, climo and temp. profiles suggest an elevation event. The trending toward consensus is an upgrade from 6z.

Link to comment
Share on other sites

anyone know what the euro snow map is showing? 24 hr totals? less? it seems really low in spots for the QPF (particularly NE of here into New England).

From the 12z Euro clown map:

Storm totals showing almost no snowfall east of I-95... a nice foot+ swath runs from south-central PA up through southern ME (with one small disconnect in central PA). Small 2 ft. max in western MA up on the Berkshires.

NW MD cashes in with 8-12" ...northern MD from BWI to PHL pretty much running on the edge of the snow gradient in the 2" range. DCA/IAD right on the edge of the bigger stuff to the NW. Snow shield goes all the way out to western PA and central WV.

Link to comment
Share on other sites

From the 12z Euro clown map:

Storm totals showing almost no snowfall east of I-95... a nice foot+ swath runs from south-central PA up through southern ME (with one small disconnect in central PA). Small 2 ft. max in western MA up on the Berkshires.

NW MD cashes in with 8-12" ...northern MD from BWI to PHL pretty much running on the edge of the snow gradient in the 2" range. DCA/IAD right on the edge of the bigger stuff to the NW. Snow shield goes all the way out to western PA and central WV.

cool. i meant the wunderground one specifically but those totals back up that it's showing a short period or wrong.

Link to comment
Share on other sites

cool. i meant the wunderground one specifically but those totals back up that it's showing a short period or wrong.

Yeah, I just figured I'd pull the data off of the MDA site just to get a grasp on the total affected area and actual model-estimated storm totals (as unlikely as they are).

Ian, I think Mark was talking about the underground one

It's not as detailed, but it's a lot easier to look at MDA's maps vs. wunderground (I wish we would contour stuff that's under 2" :()

Link to comment
Share on other sites

My fault, I'd forgotten about that one. We did get snow here; I believe we ended up with 5 - 6 inches out here.

Thanks. That storm is the all-time DC autumn blockbuster, even though it wasn't that bad to the west of the city. According to-- http://www.colinbeav...Snowstorms.html -- " . . . a completely unforecasted low pressure bombed off the North Carolina coast and produced a mesoscale convective snow band that passed through southern Maryland and the Washington, D.C. area. National airport received 11.5 inches of snow and some locations in Prince Georges county to the east of D.C. received up to 17 inches of snow. A storm like this was unheard of in the D.C. area in the fall and the city and surrounding areas became completely paralyzed."

Link to comment
Share on other sites

12Z GFS looks like all rain in the DC metro to me with greater than 3000 feet above the surface > 0C at IAD...the 12Z Euro solution would lead me to believe the rain might end with a change to or mix with some snow, very light though, in the N/W suburbs. Wouldn't stick but it would look nice coming down. 12Z Euro verbatim, the higher elevations in W MD/PA and WV could see some heavier stuff with possible accumulations...they'd see nothing from the GFS.

I think it's interesting to look at, because if in the small chance it does turn out to snow in the DC area, there is something to learn here. Just because something has a low probability of occurring doesn't mean you ignore it...as others have pointed out, it HAS snowed in DC in Oct. so it is a physical possibility. Will it? I don't know, that's why I'm watching. If this was Sept. I'd agree that just because it's Sept. means it won't snow, but the ones dismissing it simply because it's Oct. are just wrong IMO.

Link to comment
Share on other sites

Thanks. That storm is the all-time DC autumn blockbuster, even though it wasn't that bad to the west of the city. According to-- http://www.colinbeav...Snowstorms.html -- " . . . a completely unforecasted low pressure bombed off the North Carolina coast and produced a mesoscale convective snow band that passed through southern Maryland and the Washington, D.C. area. National airport received 11.5 inches of snow and some locations in Prince Georges county to the east of D.C. received up to 17 inches of snow. A storm like this was unheard of in the D.C. area in the fall and the city and surrounding areas became completely paralyzed."

I think Brian Korty at HPC did put out 2-4 inches for the Veteran's day storm on his mid shift but 24 hrs before the event now one was predicting it.

Link to comment
Share on other sites

12Z GFS looks like all rain in the DC metro to me with greater than 3000 feet above the surface > 0C at IAD...the 12Z Euro solution would lead me to believe the rain might end with a change to or mix with some snow, very light though, in the N/W suburbs. Wouldn't stick but it would look nice coming down. 12Z Euro verbatim, the higher elevations in W MD/PA and WV could see some heavier stuff with possible accumulations...they'd see nothing from the GFS.

I think it's interesting to look at, because if in the small chance it does turn out to snow in the DC area, there is something to learn here. Just because something has a low probability of occurring doesn't mean you ignore it...as others have pointed out, it HAS snowed in DC in Oct. so it is a physical possibility. Will it? I don't know, that's why I'm watching. If this was Sept. I'd agree that just because it's Sept. means it won't snow, but the ones dismissing it simply because it's Oct. are just wrong IMO.

dismissing it because it's oct is only one part of it. sometimes i wonder if anyone reads each others posts here. just look how much we have go wrong in complicated setups EVERY YEAR during prime winter. the OCT part is only a part of it.

Link to comment
Share on other sites

I'm pretty sure DT isn't allowed to post this (being from the European model), especially publicly. Last I checked, he doesn't officially receive any of our products, either. <_<

Probably via one of the AccuWx folks or something. May not be directly from him.

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

Guest
This topic is now closed to further replies.
  • Recently Browsing   0 members

    • No registered users viewing this page.

×
×
  • Create New...