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Winter 2024-2025 All Tri-State Snowfall Totals Maps


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17 minutes ago, LibertyBell said:

It feels like JFK is weirdly low, there have been a few events this year where JFK had more snow than NYC.  I also added up your numbers for JFK and they added up to 9.7

Good catch. i Just went back did some investigating. I didn't make an error. All my numbers do add up to 9.7". However it seems JFK changed their original report from the 1/19 storm from 2.2 to 1.6. That would decrease the amount from 9.7 to 9.1 which is what they officially have. I have no idea why they changed it for the official report after or it is an error. Also youll not that NYC recorded 1.6" for that event. I bet it was a book keeping error and they entered the NYC report of 1.6 for that 1/19 event instead of 2.2.

I think ill tweet them when i have some time and let them know. Either they changed it for some reason or its an error. The  fact its exactly the same as the NYC  report from that date is also suspicious.  Leads me to believe its an  error

Screenshot 2025-02-11 162434.png

Screenshot 2025-02-11 162457.png

01.19.25_jdj_v3_tri_state_snowfall_totals.jpg

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19 minutes ago, The 4 Seasons said:

1.6" is the correct number. 2.2 was their error in the pns. I just heard back from okx @LibertyBell

Thanks.  Wow, I was suspicious about that 1.6 from Central Park too and looking at the surrounding reporting stations, it seems like 2.2 for JFK is more supported than 1.6.  So now both Central Park and JFK are recorded as having 1.6 in that storm? I wonder what the reason for the change was? Note Howard Beach, which is very close to JFK, measured 3.5 in that storm.  That's a huge difference.

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Just now, LibertyBell said:

Thanks.  Wow, I was suspicious about that 1.6 from Central Park too and looking at the surrounding reporting stations, it seems like 2.2 for JFK is more supported than 1.6.  So now both Central Park and JFK are recorded as having 1.6 in that storm? I wonder what the reason for the change was?

Yeah weird 2.2 makes more sense but it is what it is

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Just now, The 4 Seasons said:

Yeah weird 2.2 makes more sense but it is what it is

and the lowest number in the entire county, it looks so off compared to the 3.5 at Howard Beach.  I wish I remembered that storm better-- was it a snow changing to rain storm? Because 0.24 liquid equivalent and 1.6 inches of snow seems like a weird 8:1 ratio otherwise.

 

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7 minutes ago, LibertyBell said:

and the lowest number in the entire county, it looks so off compared to the 3.5 at Howard Beach.  I wish I remembered that storm better-- was it a snow changing to rain storm? Because 0.24 liquid equivalent and 1.6 inches of snow seems like a weird 8:1 ratio otherwise.

 

Started as rain/mix changed to snow. Bust here we were under a warning for 5-8

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4 hours ago, The 4 Seasons said:

Good catch. i Just went back did some investigating. I didn't make an error. All my numbers do add up to 9.7". However it seems JFK changed their original report from the 1/19 storm from 2.2 to 1.6. That would decrease the amount from 9.7 to 9.1 which is what they officially have. I have no idea why they changed it for the official report after or it is an error. Also youll not that NYC recorded 1.6" for that event. I bet it was a book keeping error and they entered the NYC report of 1.6 for that 1/19 event instead of 2.2.

I think ill tweet them when i have some time and let them know. Either they changed it for some reason or its an error. The  fact its exactly the same as the NYC  report from that date is also suspicious.  Leads me to believe its an  error

Screenshot 2025-02-11 162434.png

Screenshot 2025-02-11 162457.png

01.19.25_jdj_v3_tri_state_snowfall_totals.jpg

And you believe the 1.6 surrounded by a sea of 2 and 3 somethings was a legit timely accurate measurement? Okay whatever. 

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12 minutes ago, CPcantmeasuresnow said:

And you believe the 1.6 surrounded by a sea of 2 and 3 somethings was a legit timely accurate measurement? Okay whatever. 

Did i say i believe that it is fully accurate timely report? I have to deal with BDR which is just as bad. But at the end of the day im going to use their climo data, it's official, it is what it is. I'm not going to change their numbers and just add an arbitrary amount to NYC or JFK or BDR or where ever. Also, its not that serious. 

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59 minutes ago, The 4 Seasons said:

Did i say i believe that it is fully accurate timely report? I have to deal with BDR which is just as bad. But at the end of the day im going to use their climo data, it's official, it is what it is. I'm not going to change their numbers and just add an arbitrary amount to NYC or JFK or BDR or where ever. Also, its not that serious. 

It's not, except they are the biggest city in the United States and they've been doing it for years. Sometimes it gets better for a short while when they pay attention. And I get it about Bridgeport too. They are always suspiciously low.

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14 hours ago, The 4 Seasons said:

Good catch. i Just went back did some investigating. I didn't make an error. All my numbers do add up to 9.7". However it seems JFK changed their original report from the 1/19 storm from 2.2 to 1.6. That would decrease the amount from 9.7 to 9.1 which is what they officially have. I have no idea why they changed it for the official report after or it is an error. Also youll not that NYC recorded 1.6" for that event. I bet it was a book keeping error and they entered the NYC report of 1.6 for that 1/19 event instead of 2.2.

I think ill tweet them when i have some time and let them know. Either they changed it for some reason or its an error. The  fact its exactly the same as the NYC  report from that date is also suspicious.  Leads me to believe its an  error

Screenshot 2025-02-11 162434.png

Screenshot 2025-02-11 162457.png

01.19.25_jdj_v3_tri_state_snowfall_totals.jpg

This storm is the reason why I am at 13” 5 miles SE of Central Park for the season and they are at 11.8”

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9 hours ago, CPcantmeasuresnow said:

And you believe the 1.6 surrounded by a sea of 2 and 3 somethings was a legit timely accurate measurement? Okay whatever. 

He doesn't think it's legit either.

What makes it particularly ludicrous is JFK had it as 2.2 and then lowered it to 1.6 to match Central Park.

I find that somewhat comical......

 

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21 minutes ago, CPcantmeasuresnow said:

I have to say it one more time. This thread was a fantastic idea. Thanks again for updating and maintaining this. It's a great way to scroll through the whole winter.

Thanks, tons of works, so its good to hear people like it, makes it worth it...those seasonal maps take like 3-4 hours each, not to mention all the individual storms.

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8 hours ago, CPcantmeasuresnow said:

I have to say it one more time. This thread was a fantastic idea. Thanks again for updating and maintaining this. It's a great way to scroll through the whole winter.

You should see his maps for 09-10, 10-11, 13-14 and 14-15, a great look back at some of our most memorable winters!  It was absolutely seeing a contour of 10 to 15 FEET of snow in 14-15 near Boston!

I never thought you could see that much snow at the coast!

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On 2/11/2025 at 4:02 PM, EastonSN+ said:

Yes it is. Don't know if you remember but a couple years ago and the New England forum I mentioned that my measurement in my yard is always low compared to my surroundings. I take three measurements one in the woods, and two in the cleared area of my yard and take the average. I do not clear snow I just take snow depth. 

What is odd is when I lived in Norwalk Connecticut pre-2015 I seem to almost always have the highest snow total. 

Not sure why this happens. Last time I had the most in the area was an overrunning event in January 2015 with 7. 

To get to my house you do have to go up a long sloped Hill. Not steeped, just long and it's facing south so I don't know if that has anything to do with it. I guess if there was a northerly wind I would be down sloped but slightly. 

It's wooded so I don't know why my measurements are usually low. 

 

Snowfall should be measured in an open area away from buildings or trees (e.g., not in the woods).

I have some tall hemlocks out back and the ground under them often stays bare in a snowfall.  Ditto some cedar in front. Some of yesterday's light snow fell never made it out of the trees.

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13 minutes ago, NorthShoreWx said:

Snowfall should be measured in an open area away from buildings or trees (e.g., not in the woods).

I have some tall hemlocks out back and the ground under them often stays bare in a snowfall.  Ditto some cedar in front. Some of yesterday's light snow fell never made it out of the trees.

I read that the relative warmth of the trees (dark colors absorb solar radiation, which occurs even when it's cloudy) is what makes the snow melt, in addition to preventing some of it from reaching the ground too.

 

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1 minute ago, The 4 Seasons said:

Too far north? i even put it south of where the NWS map has the 12-24" contour. Remember this ends on Feb 10th.

Hi, on your site, I saw your precise map of the 2015-16 season (one spot of 50" snowfall near Hicksville, NY), do you also have a map of the historic January 2016 blizzard? I want to see how extensive the 30"+ amounts were, I know they went from Allentown to Morristown to Somerville to Jackson Heights to JFK to Oceanside to Hicksville.  But I've never seen a graphical hires representation of it.

 

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47 minutes ago, LibertyBell said:

Hi, on your site, I saw your precise map of the 2015-16 season (one spot of 50" snowfall near Hicksville, NY), do you also have a map of the historic January 2016 blizzard? I want to see how extensive the 30"+ amounts were, I know they went from Allentown to Morristown to Somerville to Jackson Heights to JFK to Oceanside to Hicksville.  But I've never seen a graphical hires representation of it.

 

just for ct for that storm

https://www.jdjweatherconsulting.com/past-storms-15-16

 

Local_Obs_Snowfall.png

Regional_Obs_Snowfall.png

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Just now, The 4 Seasons said:

not my maps lol

Oh I see!  There was a revision of the numbers and seeing this map made me remember  a big argument on this forum back in 2016, when this storm was ranked #4 all time behind March 1960.  The NESIS calculations didn't include the revised data that upped the JFK total to 30.7. Based on the new data my contention was that this storm should rank higher than March 1960 on NESIS (widespread 30+ amounts in a densely populated area from Allentown to Hicksville) and should be number 3 on the list, right behind March 1993 and January 1996.

 

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