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Richmond Metro/Hampton Roads Area Discussion


RIC Airport
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Here is another slowed down version of the individual members starting at 00z 1/18 to 00z 1/22 that covers the period of interest for the 2nd threat. You can see there are snow hits, but also some rainy ones.

I also added the snow maps that includes both threats. Plus, the 500mb picture also show a somewhat favorable look, with the western trough, continued blocking with that vortex over SE Canada which hopefully helps to support a colder look and track farther south, but maybe that is wishful thinking, lol.

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PERCENTILE.thumb.webp.94fd43fa5682a9804d45a6ee1a27b8b0.webp500mb.thumb.webp.a8dbead56ee15c5db10c8f9a8b116baf.webp500v.thumb.webp.8a28ad2595b60d0ae14b3b5cc6b6e395.webp

 

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11 minutes ago, ldub23 said:

After a few days  of  cold and dry  its right  back to rain and warm. We get far  more tornado watches  in Jan/feb than winter advisories  now, lol

I know what you're trying to convey, this winter has been frustrating. We all feel that way. But as I've mentioned to you before posting the 384hour GFS to prove a point isn't helpful, because things change so drastically beyond 200 hours. It's better to look at the 500mb, particularly the ensembles, to identify trends in the large-scale pattern. Then you can determine whether the pattern will be favorable based on past outcomes. 

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Been looking at this timeframe for awhile now…guessing after Friday’s storm clears the models will come in more of an agreement…  It dosnt look like anything major but looks like it will break the streak of no Accumulating snow in this area..

Hopefully we can get it come through overnight.. wouldn’t mind a little more south trend at this point too…

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20 minutes ago, Rhino16 said:

The 14 years between the winters of 1947-1948 to 1961-1962 was the longest time without a 20+” snowfall winter. They were surprisingly common!

This year will be the 14th year since the 2009-10 winter… 

Wow, didn’t realize it was that bad.

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2 hours ago, Rhino16 said:

The 14 years between the winters of 1947-1948 to 1961-1962 was the longest time without a 20+” snowfall winter.

I am unsure where that came from, but that is incorrect, assuming it is for Richmond. 

1957-58 was a 20"+ season (20.2") and also 1959-60 (32.2"). It looks like the current stretch of 13 seasons from 2010-11 to 2022-23 ties the record longest with 1996-97 to 2008-09. Should we make it the rest of 2023-24 without reaching 20 inches, it would become a new record of 14 consecutive seasons without reaching 20".

Although not specific to your post, I would also like to point out that the 30-year averages are tallied by calendar year. For example, the 1991-2020 30-year norms, means, and extremes, currently in use by NCEI, runs from 1/1/1991 to 12/31/2020.

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57 minutes ago, RIC Airport said:

I am unsure where that came from, but that is incorrect, assuming it is for Richmond. 

1957-58 was a 20"+ season (20.2") and also 1959-60 (32.2"). It looks like the current stretch of 13 seasons from 2010-11 to 2022-23 ties the record longest with 1996-97 to 2008-09. Should we make it the rest of 2023-24 without reaching 20 inches, it would become a new record of 14 consecutive seasons without reaching 20".

Although not specific to your post, I would also like to point out that the 30-year averages are tallied by calendar year. For example, the 1991-2020 30-year norms, means, and extremes, currently in use by NCEI, runs from 1/1/1991 to 12/31/2020.

507730307_RIC1.thumb.jpg.4409d1dd435daf8db72a824b351bb033.jpg

Oops, I had that thing sorted by Winter (Dec-Feb), so anything that happened after that probably got omitted! My bad.

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17 minutes ago, Rhino16 said:

Oops, I had that thing sorted by Winter (Dec-Feb), so anything that happened after that probably got omitted! My bad.

Ah, no worries. I can see how that can happen. :lol:

For the calendar year, 2018 was the last to reach 20" thanks to the 12/9/2018 storm. But, there have not been many since about 1990, which seems to have been a turning point when looking at the period of record data back to 1897. 

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The 00z 3K NAM has Friday's rain arriving between 5pm and 6pm and moving offshore by 3am Saturday. Rainfall amounts look nothing like yesterday's storm, generally under a half inch, with the most in the northern and western areas. Totals across far SE VA and NE NC were the driest this run, which is on par with the NBM model. 

The 3K NAM still had high wind gusts exceeding 50mph in many areas. SPC added a marginal risk of severe across our part of the region, probably due to the strong winds. They might expand the risk area in tomorrow morning's update. 

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55 minutes ago, Conway7305 said:

I don’t think the GFS is handling the southern stream energy well. 500mb are drastically changing run to run. EURO has not wavered much at all.  

Yup, I agree. I stayed up to look at the GEFS for the 16th-17th threat, and they certainly didn't take away the chances.

GEFS is still running, so these maps are only through Wednesday afternoon to cover the first threat. The operational run did have the next snowstorm threat around the 20th and I'll check the rest and EPS when I wake up.

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