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January 5-6 Thing Storm Obs


snowfan
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Latest from the NWS' experimental Probabilistic Precipitation Portal (https://www.wpc.ncep.noaa.gov/Prob_Precip/). 

Granted, there will undoubtedly be a sharper gradient with the higher amounts, with lesser amounts on either side of the best FGEN banding, but it does look like most of the forum will get at least 6". That's what I'm hoping for -- and I'm glad to see those 6" probs went up near the M/D line (to 65-70%). 8"+ probs are 45-50% now near the M/D line (also up from previous model cycle), while IMBY here in central AA County up to around 67%. Meanwhile, 12" probs went up IMBY towards Annapolis as well (now 35-40%), no doubt given the robust 12Z high-res CAM guidance. Still thinking 7-9" as a 'mode' for a large chunk of the immediate metro region. Some areas maybe less (farther north), obviously those underneath the best bands have a better chance of hitting 10-11+ inches given the better (deeper) ascent within the dendritic growth layer. 

More about the membership in this ensemble, which uses the NDFD snow forecast as the 'mode' of the distribution: 

Welcome to the Probabilistic Precipitation Portal, a resource provided by the National Weather Service to communicate the range and probability of possible precipitation amounts over the next 72 hours (3 days).

Data on this page come from the Probabilistic Quantitative Precipitation Forecast (PQPF) and the Probabilistic Winter Precipitation Forecast (PWPF), which are updated twice daily at the Weather Prediction Center. These probabilistic forecasts are derived from a blend of the following:

  • 10 members from the NCEP GEFS ensemble
  • 25 members from the ECMWF ensemble
  • 10 members from the Canadian ensemble
  • 1 member from the NCEP SREF NMMB
  • 2 most recent runs of the NCEP HRRR model
  • 2 most recent runs of the Canadian Regional Model
  • 2 most recent runs of the NCEP NAM 3km CONUS Nest model
  • 4 NCEP Hi-res WRF-ARW model runs
  • NCEP Hi-res FV3LAM model
  • NCEP GFS model
  • ECMWF deterministic model
  • NCEP GEFS ensemble mean
  • NDFD forecast

This page updates each hour, typically at 25 minutes past the hour.

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8 minutes ago, MillvilleWx said:

From one Scott to another, 

Appreciate stopping by and chatting with us. I always love when you stop by and offer thoughts. You were one of the many on here I learned a lot from over the past 15 years. I mean it sincerely that you are one of my favorite posters on this board and appreciate your insight. A cold beer on me next time I’m in Southern New England :)

As just one question for you…how much do you have for the Annapolis area? (I had to ask :lol:)

Thank you for the kind words,man. I really appreciate that. I just enjoy this stuff, but unfortunately I don’t forecast professionally anymore. I’m doing some other stuff, but damn I do miss the forecasting. I have not looked in that area. I’m just kinda casually looking and just giving my thoughts without putting my you know what on the line lol. I can look a little later and let you know. 

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1 minute ago, CoastalWx said:

Thank you for the kind words,man. I really appreciate that. I just enjoy this stuff, but unfortunately I don’t forecast professionally anymore. I’m doing some other stuff, but damn I do miss the forecasting. I have not looked in that area. I’m just kinda casually looking and just giving my thoughts without putting my you know what on the line lol. I can look a little later and let you know. 

Why would one of the best forecasters stop forecasting?. I hope it’s for bigger and better things. Having you in our subforum in 09-10 was better than the Ravens winning the SB (well almost). I hope things are well with you. 

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1 minute ago, CoastalWx said:

Thank you for the kind words,man. I really appreciate that. I just enjoy this stuff, but unfortunately I don’t forecast professionally anymore. I’m doing some other stuff, but damn I do miss the forecasting. I have not looked in that area. I’m just kinda casually looking and just giving my thoughts without putting my you know what on the line lol. I can look a little later and let you know. 

No worries, Scott!! I appreciate any forecast you could offer. I truly meant everything in my last post!
 

This will be my biggest snow event since I moved back to MD from TX. Pretty stoked. Now we just need a I-95 KU from Richmond to Boston so we can all sing kumbaya and toast to an east coast victory. Cheers :drunk:
 

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Just now, MillvilleWx said:

No worries, Scott!! I appreciate any forecast you could offer. I truly meant everything in my last post!
 

This will be my biggest snow event since I moved back to MD from TX. Pretty stoked. Now we just need a I-95 KU from Richmond to Boston so we can all sing kumbaya and toast to an east coast victory. Cheers :drunk:
 

Can it please just skip over NY. 

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19 minutes ago, Bob Chill said:

Mod snow, big flakes, half mile viz, and sticking on everything. I'll post pics in a bit

lol I didn’t realize it was that close… I know you are down in sw Virginia now but even so the ob took me by surprise.  I really hope the column holds for you and you do well!  Good luck.

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3 minutes ago, Rhino16 said:

it switched over to sleet in blacksburg after large flakes. Was really hoping for oranges but guess not. Picked up maybe an inch. :(

Dang it lol. I figured the warning was a tease and mirage but I'm lovin it no matter. Bottom of the hill is a little marina on the lake. I could sled 50mph right into the lake hahaha 20250105_150241.thumb.jpg.c21e74bc8a6602c3243dbfd94d2648a5.jpg

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