OT: Weekend snowstorm - historic blizzzard

RU848789

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Jul 27, 2001
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As per NOAA, tonight’s 0z models will be the first to ingest in-situ dropsonde data as Recon is currently sampling the key shortwave trough (located just off the west coast) & its associated moisture plume today - this should help improve model accuracy (and reduce initialization errors which propagate in time to become significant errors.
 
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Mikemarc

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I didnt give nam qpf..just indicating where it stands

Odd post why start a thread then

to track the storm. But we all know that the NAM is useless at this time.

if it showed a solution good for snow - and numbers posted it - you’d mock him too saying it’s ridiculous to look at short range models 4 days from the event.
 

WhiteBus

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Oct 4, 2011
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Yeah but Sun is just as important. The last storm in January screwed family coming for my birthday. This weekend is the 1st time all can make it since.

So if we get hit there's no way to say it other than it'd be my fault.:(
It's always your fault, you haven't figured that out already? 😜
Look at the positive. You can watch the golf all day Sunday without being bothered!
 

RUPete90

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Jul 3, 2025
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Yeah but Sun is just as important. The last storm in January screwed family coming for my birthday. This weekend is the 1st time all can make it since.

So if we get hit there's no way to say it other than it'd be my fault.:(
Are you kidding me? That sucks! Hopefully it's a whiff. No one wants this thing. Well most people don't want this thing.
 
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Postman_1

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Why would you say that? 12/14, 12/26 and 1/25 were nowhere close to going out to sea and became decent hits and even 2/15, which looked like it would be out to sea, came back over the final 36 hours and delivered 1-3". Yes, the last one on 2/1 missed completely out to sea, but it also never really had much of a chance for being a storm and never should have had a thread for it. Also, 1/17 and 1/18 did not go out to sea (but they were more clippers where out to sea isn't much of a risk). And we don't know yet whether this one is going out to sea, although it's very possible.
I just seems like that. Maybe the 2/15 non event is fresh in my head. It was shaping up the same way
 

RU848789

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I was thinking this. Why 5-6 days out is it snowmaggedon and then it disappears. Never the other way around. NJ just doesn’t get much snow.
Selective memory. Several of our biggest snowstorms in history showed snowmageddon 5-6 days out, then models diverged with most showing much less snow followed by reconvergence 2-3 days out and then boom. Most famous example was 12/26/2010, where most models were showing an out to sea solution for a couple of days and then the 0Z runs on Christmas Eve, 36 hours before the start of the event mostly all showed a raging blizzard. We were in Charlotte for Xmas and instead of leaving 12/26 in the morning we left after Xmas dinner and were caught in some heavy snow in NC going 25-30 mph in the one clear lane on 85 until we outran the storm around Durham. No way was I going to miss that storm from home. Even 1/25 looked like we'd be on the northern fringe of snow 5 days out, but the storm track shifted 300 miles north over the next 2 days putting us in the bullseye.
 
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Mikemarc

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Trends today are more favorable for the storm to hit.

18z GFS shows a major storm for Sunday in our area.

let’s see if this trend holds.
 

Doctor Worm

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Feb 7, 2002
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Seems like we see this same setup all the time. Wasn't the last one just like this? As we get closer to Friday the storm will go out to sea. Always seems to happen.
Except when it doesn't. Do you recall the storm of January 2026? A glance out your window may refresh your memory.
 

RU848789

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Yeah but Sun is just as important. The last storm in January screwed family coming for my birthday. This weekend is the 1st time all can make it since.

So if we get hit there's no way to say it other than it'd be my fault.:(
And you're near Belmar, right? The coast is more likely than anywhere, as of right now, of getting significant snowfall on Sunday-Monday, as many of the models have been showing a storm with heavy snow at the coast and moderate/lighter snow along 95 and especially well NW as their tracks are further offshore. But one change in your favor is that the start time has steadily moved later on Sunday, meaning significant snowfall might not happen until after sunset - if we get a storm, which is still in doubt.
 

RU848789

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I didnt give nam qpf..just indicating where it stands

Odd post why start a thread then
100% agree on why bother having weather threads if we're not going to talk about potential weather outcomes including possible precip amounts and types. Personally, I don't see much point in posting 10 snowfall maps every 6 hours for all of the models, as that would just clutter up the thread, but briefly summarizing what the models say and/or at least the model trends seems worthwhile.
 

RU848789

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The ensembles have not been on board with this storm

You can see even on that ridiculous 18z gfs that it wants to go east southeast
That's an overstatement. The CMC ensembles are spot on with the CMC Op, and the Euro ensembles are even NW of the Op, but yes, the GFS ensembles have been well SE, on average vs. the GFS Op, indicating the GFS Op might be too far NW, but that changed with the 18Z GFS ensembles being in line with the Op. The AIFS ensembles are pretty close to the AIFS. Also, models don't ever "want" to do anything - they're not human, lol.
 
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bac2therac

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to track the storm. But we all know that the NAM is useless at this time.

if it showed a solution good for snow - and numbers posted it - you’d mock him too saying it’s ridiculous to look at short range models 4 days from the event.
No different than 18z gfs bomb which has little support
 

bac2therac

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Euro does give light snow but still east Ai Euro is barely anything
 
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RU848789

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Terrible tragedy as 8 experienced skiers (including some guides) died in an avalanche in Lake Tahoe (Castle Peak) with 1 still missing - several got out alive though - worst avalanche tragedy in US history. One of the rescuers lost his spouse in the avalanche - that has to be just brutal. They had to know how risky several feet of snow on top of crusty old snow could be.

https://www.latimes.com/world-natio...ine-skiers-missing-after-lake-tahoe-avalanche
 

RU848789

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The 6Z Euro run may have been the harbinger of things to come, as the 12Z suite is starting off with a bang, with the GFS and CMC both showing a much less progressive/flat evolution (more meriodonal flow, i.e., south to north up the coast instead of out to sea) and much more snow. I'll update this as 12Z continues and the WPC seems to be on board with significant snow, now, as per the graphic below. Interesting times.
  • The ICON still didn't have much snow at 12Z, but made major improvements in track and aloft
  • The GFS was very much snowier, with 4-6" for 95 (less NW) and 6-10" towards the coast
  • The AIGFS stepped back a bit showing a general 1-3".
  • The CMC was close to a bomb with 6-10" for 95 (less NW) and 10-15" towards the coast
  • The UK moved the low about 200 miles NW giving 3-6" S of 276/195, but very little north of there as it moved too far east
  • And to muddy things up even more, the AIFS stepped back a little bit with 2-4" for 95/4-6" for the coast...
  • ...and the Euro went back to being largely a miss to the SE. So much for being a harbinger, lol.
  • WeatherNext 2 backed off a bit from 6Z, showing 2-4" for 95 and NW and 4-7" towards the coast.
So it seems like everything is still on the table from nada to 12", lol. Glad I don't have to make a forecast for anyone, lol. In situations like this I generally punt a bit to the NBM as a guess (model blend), which shows 2-5" for the area, but that's a bit of a copout. I just don't know where we're headed and I doubt anyone else truly does either.

View attachment 1191261

The usual, fairly brief model summary at 18Z. Mostly snowier moves, except for the AIFS, but the most important move was the Euro now showing at least minor to moderate snow now vs. nada at 12Z. Note that the precip/snow is now starting late afternoon/early evening on Sunday not Sunday morning, any more.
  • The ICON moved significantly NW and now has 1-3" for 95 and 3-6" towards the coast (and the run wasn't done yet)
  • The GFS became even snowier with 6-10" for 95 (4-7" NW) and 10-18" towards the coast
  • The Euro-AIFS moved SE and it shows less snow now, i.e., 1-2" for 95/NW and 2-4" towards the coast
  • The Euro moved back NW about 100 miles and now has 1-3" NW/3-5" towards the coast - this was a major move back NW to where it was at 6Z.
  • The GFS ensembles are in line with the Op, and both the Euro and AIFS ensembles lean a bit NW of the Op indicating some likelihood of the Op models moving NW.
 
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RU848789

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Euro is again south and east miss. Ai Euro is barely anything
Were you eating CBD gummies? The Euro is a major improvement, moving ~100 miles NW with 1-3" for 95 (less N of 80) and 3-4" towards the coast. And the AIFS was 1-2" for 95 and 2-4" for the coast, which is less than 12Z, but not "barely anything." Your credibility suffers when you misrepresent what the models are showing.
 
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bac2therac

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Were you eating CBD gummies? The Euro is a major improvement, moving ~100 miles NW with 1-3" for 95 (less N of 80) and 3-4" towards the coast. And the AIFS was 1-2" for 95 and 2-4" for the coast, which is less than 12Z, but not "barely anything." Your credibility suffers when you misrepresent what the modes are showing.
Giving amounts from scrapers..be careful with that
 

fsng

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Oct 31, 2025
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Terrible tragedy as 8 experienced skiers (including some guides) died in an avalanche in Lake Tahoe (Castle Peak) with 1 still missing - several got out alive though - worst avalanche tragedy in US history. One of the rescuers lost his spouse in the avalanche - that has to be just brutal. They had to know how risky several feet of snow on top of crusty old snow could be.

https://www.latimes.com/world-natio...ine-skiers-missing-after-lake-tahoe-avalanche

Not the worst in US history but certainly nasty one and big news story.

One in WA back in early 1900s killed nearly 100 people by derailing a train.

Just read about a train derailed that way in Swiss Alps a couple days ago ..don't think anyone was killed but a number injured. Similar big dump atop low base there as in Tahoe.
 
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RU848789

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Not the worst in US history but certainly nasty one and big news story.

One in WA back in early 1900s killed nearly 100 people by derailing a train.

Just read about a train derailed that way in Swiss Alps a couple days ago ..don't think anyone was killed but a number injured. Similar big dump atop low base there as in Tahoe.
Gotcha - worst in Cali history, not US as you noted.
 
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Sweet Pea's Corner

All-American
Sep 10, 2001
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As per NOAA, tonight’s 0z models will be the first to ingest in-situ dropsonde data as Recon is currently sampling the key shortwave trough (located just off the west coast) & its associated moisture plume today - this should help improve model accuracy (and reduce initialization errors which propagate in time to become significant errors.
What the f did u just say?
 

bac2therac

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No..youre the one saying the nam shouldnt be posted. I said its out of range. Posted to show where it currently sits and your bits got upset
 

Mikemarc

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No..youre the one saying the nam shouldnt be posted. I said it’s out of range. Posted to show where it currently sits and your bits got upset
I didn’t say it should it shouldn’t be posted.
I just said it’s silly.

It’s pretty useless at the range as we can all agree.
 

Mikemarc

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It’s all useless 100 hours out. Thats why these threads normal wouldnt begin until today

Long range models aren’t useless 100 hours out. Less precise, sure.

but they’re very valuable in determining big picture things - or at least narrowing down things - if a storm is coming, general area impacted, and timing.
 

Mikemarc

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Keep in mind this is a TRACKING thread. Long range models are good for just that - tracking.

it’s the NAM and mesoscale models that are better for FORECASTING - which we agree it’s way too early to do