Richmond Metro/Hampton Roads Area Discussion

[tigersaint11]

Lot's of great info to unpack from RIC Airport. Thanks for the insight.....I can't help but think all of these s/w's that have been pummeling Central/Eastern VA will eventually run into some cold air. Maybe? Probably?

[ldub23]

54 minutes ago, tigersaint11 said:

Lot's of great info to unpack from RIC Airport. Thanks for the insight.....I can't help but think all of these s/w's that have been pummeling Central/Eastern VA will eventually run into some cold air. Maybe? Probably?

in 2025 lol. I do hope RVA gets  lucky  on the  7th. 

[RIC Airport]

56 minutes ago, ldub23 said:

in 2025 lol. I do hope RVA gets  lucky  on the  7th. 

The 18Z GFS has a similar outcome as the 12z where it puts out snow north and west of Richmond on January 7th. Still plenty of time for things to turn more favorable and for other models such as the Euro and Canadian to agree with a colder scenario. 

[RIC Airport]

Here are the 18z GFS ensemble members for around January 7th. I slowed them down so you can see how each member handles this event.

Below, the snow mean through 18z January 8th increased from the 12Z GFS ens I posted earlier. RIC, specifically, went from 0.8" to 1.2". 

 

 

[RIC Airport]

Below are the snowfall outputs from each 18Z GFS ensemble member for RIC and ORF, with threats mainly around January 7th and then again from the 12-14th. 

 

[RIC Airport]

Here is the regional mean for the entire run.

 

[ldub23]

Could  be big  for  central va. high 10 mb stronger to the  north and  low  more east

 

 

 

 

 

 

Looking good

 

 

Looks  like  i will be  on the  line  on the ICON

 

 

R/S  line right  over  my house  lol. Based  on the ICON i might  get  7 or  0

 

 

[RIC Airport]

56 minutes ago, ldub23 said:

Could  be big  for  central va. high 10 mb stronger to the  north and  low  more east

 

I like that look. However, the 00Z GFS maintains the snow mostly north and west. Maybe the low deepens farther SE?  There is a surge of warm air over SE VA and up to RIC as the low approaches. Plenty of time to change for the better on the GFS, but not much different from today's earlier GFS runs. 

 

 

[RIC Airport]

24 minutes ago, RIC Airport said:

I like that look. However, the 00Z GFS maintains the snow mostly north and west. Maybe the low deepens farther SE?  There is a surge of warm air over SE VA and up to RIC as the low approaches. Plenty of time to change for the better on the GFS, but not much different from today's earlier GFS runs. 

 

 

The 00z Canadian had a more favorable solution for Richmond. But, I think it might be too cold with the antecedent airmass, has widespread low-mid teens the morning of Saturday the 6th.

[RIC Airport]

The 00Z GFS ensembles continue to signal a storm threat for January 7th. The snowfall mean at RIC increased once again. 

The 1st map is a loop of the ensemble mean. The 2nd is a slowed-down loop so you can see how each of the 30 members handles this event. So watch closely!  There were several good hits for Richmond.

The final two maps are the snowfall totals for each ensemble member and a regional map of the snowfall mean for the period ending early Monday morning, January 8th.

 

[RIC Airport]

Here are the 00z GFS ensemble member snowfall outputs for Richmond and Norfolk. You can see there are opportunities between January 7th and 15th. 

I also included a map of the regional mean from the entire run.

 

 

[RIC Airport]

Meanwhile, the 00z Euro was not our friend tonight. The ensembles might reveal hope for the 1/7 event, but I will check later in the morning. 

[ldub23]

High to the  north  is gone  on the  ICON. All rain. 

 

 

[RIC Airport]

1 hour ago, ldub23 said:

High to the  north  is gone  on the  ICON. All rain. 

We needed the Euro to get on board, and it didn't last night. Also, GFS has caved to the Euro, so that threat seems less likely today. There is still some uncertainty with how the rest of the month goes, and I'm not too fond of the troughing tendency in the middle and western CONUS. But there is plenty of time to monitor, and everything could change at the drop of a dime, and we get a sneaky event.

[CentralVaGirl]

I'm a lurker and weather novice. Just wanted to thank you for posting for the RIC area!

[RIC Airport]

13 hours ago, RIC Airport said:

We needed the Euro to get on board, and it didn't last night. Also, GFS has caved to the Euro, so that threat seems less likely today. There is still some uncertainty with how the rest of the month goes, and I'm not too fond of the troughing tendency in the middle and western CONUS. But there is plenty of time to monitor, and everything could change at the drop of a dime, and we get a sneaky event.

The 00Z Euro came back south and east. Verbatim, it's better if you're north and west of Richmond, but it still drops, accumulating snow even in Richmond this run. However, there is a sharp cut-off once you get south and east of Richmond. 

Precip actually arrives in the afternoon and evening of Saturday January 6th. There are some 850mb and surface temp concerns for RIC metro specifically (which I've looped below), but too early to get into the details as the model is subject to change. But, this is an encouraging development.

 

 

[RIC Airport]

Here is the snowfall from the 00Z Euro Ensembles through 7am on the morning of January 9th. Of course, this is a 10:1 ratio, but the mean from all the members is 1.2" at RIC. That is mainly from 6 or 7 of the 50 members as the vast majority of them, as you can see, are hits in northern and western VA, particularly from US Hwy 15 and westward. 

 

[RIC Airport]

Here is the snowfall mean for all euro ensemble members for the entire 00z run though hour 360 and the updated totals map for the 50 individual members

Also, the specific Richmond and Norfolk snowfall outputs from each member thru hour 360. Yes, the ensmebles indicate another opportunity for snow around the 12-14th of January.

[RIC Airport]

6z GFS is on board and was better than the 00z GFS. Precip arrives Saturday afternoon.

Let's see if things trend better at 12z.

[ldub23]

Hopefully  it will trend  better for  central va,

[SoCoWx]

Getting genuinely curious what it’s gonna take for it to snow more than a heavy dusting in the city again?

It is only January, but time moves quick, and we won’t be in an El Niño forever.

[Conway7305]

Looks like 12z GFS is more suppressed then 6z.  In fact, last two or three runs have a gradual suppression.  

 That’s goood for us. More suppression gets us in the higher totals. Will push the rain snow line south.  

[Conway7305]

Can someone please  post the individual 12z  GEFS snow total maps when they are available? 

[RIC Airport]

56 minutes ago, Conway7305 said:

Can someone please  post the individual 12z  GEFS snow total maps when they are available? 

The dark blue has made it as far SE as RIC. I'll post them momentarily when they finish.

 

 

[tigersaint11]

The trend is our friend 

[RIC Airport]

Here are the individuals thru 18z Monday, @Conway7305.

 

 

[RIC Airport]

Chances for at least one inch of snow around Richmond keeps going up, now at around 40%. Hopefully this trend continues. 

[RIC Airport]

While we await the Euro, major 850mb and surface temperature concerns remain if you are south and east a line from Caroline to Lousia to Buckingham. 

The ensemble mean would suggest 850s MB temperatures at RIC goes from 0°C at 10am Saturday to 1°C by 1pm and stays there until about 4am Sunday when it goes back to 0°C before finally reaching -1°C by 10am.

 

Surface temperatures around Richmond are in the upper 30s to around 40°F the whole time. This is a mean, so obviously, there are colder members. We need to trend both of these colder.

 

From my glean of the 12z GFS ensembles, the best chance for snow in Richmond is after the low passes and gets to our east on the back side. Whether it sticks is the big question.

[RIC Airport]

Well, the 12Z Euro just erased a lot of hope. 

 

[Rhino16]

Very disappointing, but hopefully it’s wrong.