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January 28-29, 2022 Miller abcdefu Storm Threat


WxUSAF
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1 minute ago, MillvilleWx said:

It's still a 2-4" US15 to I-95, then 3-6" I-95 to CAPE's area, then it's easy WSW east of there. Basically all timing with the southern stream s/w. It is further west and phases/goes ape about 6 hrs too late for the fun to be further west like the 12z run. Not the end of the world, but still pretty par for the course for the expectation right now. Outside a few glory runs from guidance, this is actually pretty consistent right now. 

Sounds good... so we just need a slightly faster phase then.  Not the end of the world as you say, and still time 

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6 minutes ago, ravensrule said:

I was wondering. I have never seen you up this late. It’s starting to look like 4-8” will be our top end here. Oh well. 

You say that if it’s a bad thing! how mad can we be at 4-8” in the Baltimore area with such a setup? Sure, a good 6-12”+ MECS would be great, but I’d take 4-8” in a heartbeat if I could lock it in now. 2-4/3-6 is my expectation unless we see better runs at 12z and Beyond 

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9 minutes ago, yoda said:

Sounds good... so we just need a slightly faster phase then.  Not the end of the world as you say, and still time 

It's doable for sure, but expecting a MECS for our area is not what this setup is about, unless you are on the eastern shore. SECS for US15 on east is in play with higher potential the further east you go. I-95 I would say has the best chance on the other side of the bay, but around 30-40% for the time being. I see the shore being the spot for this one. I think they get pounded. 

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3 minutes ago, MillvilleWx said:

It's doable for sure, but expecting a MECS for our area is not what this setup is about, unless you are on the eastern shore. SECS for US15 on east is in play with higher potential the further east you go. I-95 I would say has the best chance on the other side of the bay, but around 30-40% for the time being. I see the shore being the spot for this one. I think they get pounded. 

Oh I'm not expecting a foot here... something like maybe 4 to 8 would be nice and I still think we have a chance at that.   If its 2-4... so be it and that's nice as well 

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That run was actually how the area west of I-95 gets nothing. The vort pass was to the south and MD gets skipped over until you get east of the fall line. Eastern shore still does okay I see and the coast gets whacked. I see there's a trend who the winner in the setup will be. Coastal plain looks to get clocked. 

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Not a great sign to see the snowiest solutions (euro and nam) trend flatter as we get closer. We need them to hold suit and others to move toward them, not vice Versa.
 

Thankfully it’s still only Wednesday. I’ll wait until 00z Thursday night before throwing in the towel for 95 & points east. Windows closing quickly for western areas without seeing meaningful changes in the upcoming runs, no doubt. 

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why i dont get excited any more about storms 4 5 6 days out. the models never ever hold any more. wouldnt be surprised if this goes off the south east coast. if it does stay near the coast it wont have the strength or precip. I wish every would get the best out of this storm but as normal it feels it isnt our storm or at least the big one.

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LWX AFD from this morning

.LONG TERM /FRIDAY THROUGH TUESDAY/...

Uncertainty remains in the track of the coastal low pressure system 
poised to move north Friday and into this weekend. Confidence is 
increasing in a potential impactful event for the majority of the 
Mid-Atlantic coast and further across New England. A deep, digging 
trough will move eastward Friday into Saturday. This, coupled with 
the surface low will bring the threat for impactful snow to most of 
the area.

To start with, by late Thursday night a period of upslope snow 
showers should begin for the Allegheny Front as the upper trough 
begins to move further east. At this point, it is increasingly 
likely that the Allegheny Front will see a prolonged snowfall 
through late Friday given the upper level low and however the 
surface low influences that portion of the area. The snow will 
continue to track further east throughout the day Friday and totals 
will be greatly impacted by the position and timing of the coastal 
low and the upper level low. 

There continues to be discontinuity in the exact position of a 
coastal low set to form near the Carolinas. Latest ensemble means 
for the position of the low remain in disagreement in terms of 
timing and intensity. Snowfall totals for the 00z EPS show a more 
bullish approach with a closer low track vs the 00z GEFS (3-5" 
difference across portions of southern MD). Deterministic guidance 
continues to show most of the higher totals across the Delmarva 
Peninsula and further north-east. Should the track move further 
west, then areas like southern MD and the I-95 corridor may see 
significant changes in potential impacts and snowfall totals. 
Guidance will continue to zero in on a potential track over the next 
few days. To summarize, confidence is high on an accumulating 
snowfall across most of the area but remains low with regards to 
totals, especially the I-95 corridor and southern MD.

Another important component of this system will be the gusty winds 
with a tightening gradient ahead of the system falling into place. 
The increased winds and falling temperatures will most likely 
warrant Wind Chill Watches/Warnings/Advisories Saturday into Sunday. 
Temperatures will most likely fail to reach 30F during this time 
period with wind chills in the negatives (-15 to -20 across portions 
of the Allegheny Front) during the night.
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No one but cape cod and extreme SE NE really gets in on the very heavy stuff. Gets going too late.  

Hopefully it’s a progressive bias, but without blocking, we cannot rule this likelihood out. We need an earlier phase and the trough to go negative earlier. 

If this continues, 00z tonight is when I likely throw up the white flag for the metro corridor 

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