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"Don’t do it" 2026 Blizzard obs, updates and pictures.


Ginx snewx
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3 minutes ago, Greg said:

Actually, it is not a true rule. Many Coops that I see and I'm one of them, do it the "old School" method. We use a board but don't clear it off every 6 hours. We wait till the storm ends or every 24 hours. If a storms longer in duration than that, then we clear the board. In a storm like this, we take multiple measurements in the a "snow survey" area and get an average and repot. The National Weather Service in Norton, MA does show rules on this. In fact, I find some of the rules somewhat on the ridged side. This can be found on their site.

I think the only reason it’s 24hr is because they don’t want to force their volunteer observers to take readings more than once per day. 

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7 minutes ago, The 4 Seasons said:

Is the V5 experimental going to overtake the current version 4.3? I noticed its significantly lower in the snowfall mean than the operational in almost every event. 

At some point this year I would imagine, the evaluation period ended 12/1.

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3 minutes ago, HIPPYVALLEY said:

I thought you guys into S NH would’ve done better.  I was also a little surprised Hartford to Springfield didn’t do a little bit better.  

I woke up around midnight and when I saw the snow had not begun my thought was Uh oh. Lol

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33 minutes ago, ORH_wxman said:

This band out near 495 is just going to town here right now. Choking dendrites on the east side of it. 
 

South shore stuff seems to be re-intensifying again a bit. 
 

image.gif.809ad0e2f595baa79c75015d18043e1d.gif

Yeah I picked up another 3 in with that. Still snowing. Over 15 in now

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Just now, dendrite said:

I think the only reason it’s 24hr is because they don’t want to force their volunteer observers to take readings more than once per day. 

Yep.

They still want every 6 hours at first order sites...

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Just now, dendrite said:

I think the only reason it’s 24hr is because they don’t want to force their volunteer observers to take readings more than once per day. 

Correct, last I saw officially you only need once in 24 hr measurement, but can clear up to every 6 hours.

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we had stepped back up to moderate over the last couple of hours here.  Together with wind gusting frequently to 40 made for low vis milky look out the window.

It abruptly ended about 10 min ago.  Vis jumped to 5+ mi inside of 5 minutes.  I've seen this before here.  One of the big storms in 2015 did this... we were doing just fine, the radar with est 2 more hours to go ...end it just stopped, prior to the edge of the rad returns actually getting here.  Seems to have done the same thing...  It's winding down everywhere so it's not like a loss or anything.  Dry air undercutting when the wind shifted NW dooms the storm

Decent event.  wind snow combo !

Est 12" but will need to corroborate.  Too much drift fins.  Anywhere flat sort of scoured some

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19 minutes ago, moneypitmike said:

It would really be a shame if they don't get 3' on the event.

Actually--if that's on the ground, is there an eventtotal for them  I figure there must be some compacting of today's snow in there.

All-time record in my old hometown.

National Oceanic and Atmospheric AdministrationNational Weather ServiceUnited States Department of Commerce
Toggle navigation
Record Report
Issued by NWS Boston, MA
 
Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5
415
SXUS71 KBOX 231808
RERPVD

RECORD EVENT REPORT
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
105 PM EST MON FEB 23 2026

...RECORD SNOWSTORM FOR PROVIDENCE RI...

AS OF 1 PM, THE SNOWFALL TOTAL AT RHODE ISLAND T.F. GREENE
INTERNATIONAL AIRPORT WAS 32.8 INCHES. THIS BROKE THE RECORD FOR THE
GREATEST SINGLE SNOWSTORM ON RECORD, WHICH WAS 28.6 INCHES SET DURING
THE BLIZZARD OF `78, ON FEBRUARY 6-7, 1978.

AN UPDATE WILL BE SENT THIS EVENING ONCE WE RECEIVE THE NEXT
SNOWFALL TOTAL AROUND 7 PM.

$$

JWD/KJC


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12 minutes ago, OceanStWx said:

The NBM includes just about everything. In the extended it's primarily the ensembles members and then starts to bring in meso models in higher weights as you get inside 36 hours.

There is dynamic weighting based on recent model performance (which is great when the pattern is stable, not so great when big changes occur). And some NBM fields are bias corrected on a grid by grid basis.

Overall it's pretty good, but there are blind spots that humans can still improve on.

Someone yesterday (MegaMike?) posted a breakdown of how it weighs different models based on time I think?

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7 minutes ago, The 4 Seasons said:

does 11.6 in BDL seem high to you?

I was pretty surprised when I saw that. I felt like I was on the razor's edge earlier when I had 11.6 and South Windsor to the north was reporting 7.5. That corridor from Enfield to SW seemed to be the sucker zone. Just to the west and east towns were reporting double digits from what I saw. 

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3 minutes ago, OceanStWx said:

Correct, last I saw officially you only need once in 24 hr measurement, but can clear up to every 6 hours.

airports, climate sites, i am assuming are clearing every 6? I notice they are usually higher in these big events than surrounding reports that are taking one depth measurement (most of them anyway).

BDR just came in with 20 

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1 minute ago, The 4 Seasons said:

airports, climate sites, i am assuming are clearing every 6? I notice they are usually higher in these big events than surrounding reports that are taking one depth measurement (most of them anyway).

BDR just came in with 20 

I think it's only required if they are paid observers. Either a volunteer near the airport or a FAA contracted observer at the airport.

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1 minute ago, dendrite said:

I think the only reason it’s 24hr is because they don’t want to force their volunteer observers to take readings more than once per day. 

That's the general sense but what I wrote above is mostly because of inaccurate or lots of snowfall data metrics that are all over the place. In other words, too many cooks in the kitchen using different methods than using a single one. Coops with the settled snowfall is more trustworthy data. As long as the CoCoRaHS match or come in within reason to the Coop data, it is accepted. If it looks way off it is not recorded or data cleaned. Sometimes as people can see some bad/off data gets though on the PNS reports.

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Glad to see the storm shaping up, though I’m already thinking about logistics reminds me of the last time I had to get across town safely during a heavy snow, and Blue Nile Livery ended up being a lifesaver navigating the slick roads. Definitely keeps me paying attention to the latest obs before heading out.

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