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Midlo Snow Maker

Mid Atlantic Snow totals thread for winter 2013/14

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I'll give my totals of 2-3" thanks to the wind blowing it all off. Of course, all of the big storms I got multi-foot drifts from the same wind, with one storm over 3' drifts.

 

Next year I hope for a nice no wind long duration snow :)

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12/8/13:  7.5"

12/10/13:  3.5"

12/14/13:  1.5"

12/17/13:  T"
1/2/14:     5"

1/18/14:    T"

1/21/14:  8.5"

1/28/14:  0.5"

2/3/14:   2"

2/9/14:  1"

2/13/14:  18"

2/18/14:  1.0"

2/25/14: 0.25"

2/26/14: 0.25"

3/3/14:   4"

3/17/14: 6.0"

3/25/14: 2"

3/30/14: T

Total: 61"

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You do realize I'm measuring snow fall and not snow depth.  As per NOAA guidelines http://www.crh.noaa.gov/jkl/?n=snow_measurement .  And yes, snowfall can be significantly greater than snow depth which is effected by moisture levels, temperature both air and ground, density, drifting....   I was trying all winter to record snowfall so each event was handled in this repeatable fashion. I thought this was how everyone was measuring the snow. If I have made a meteorological faux-pas my bad.

 

I'll keep your 70.8, since for your area it does make sense given everything around you is 70" or higher. But yes, how often you are clearing your snowboard isn't correct.

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it is also more about the spirit of measuring in good faith...I am not saying he was disingenuous....but I generally think your snow total should be reasonably close to your max depth....Snow does compact and melt and we can't measure every 5 minutes, but if you record 2.3", you probably should have had close to 2" on the ground at some point

I generally agree with this, but I think for some storms, 6 hours is too long.  Having said that, I didn't clear my measuring spot any this year.  I'm just too lazy to do it.  I'm sticking a ruler in the snow and whatever it says, that's what it is.

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I generally agree with this, but I think for some storms, 6 hours is too long.  Having said that, I didn't clear my measuring spot any this year.  I'm just too lazy to do it.  I'm sticking a ruler in the snow and whatever it says, that's what it is.

 

I think just generally using max depth is fine here and maybe tack a little on for compaction/melting since you aren't measuring every 5 minutes....at some point ecosense probably had 1.5 or 2"

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I generally agree with this, but I think for some storms, 6 hours is too long.  Having said that, I didn't clear my measuring spot any this year.  I'm just too lazy to do it.  I'm sticking a ruler in the snow and whatever it says, that's what it is.

 

 

I think just generally using max depth is fine here and maybe tack a little on for compaction/melting since you aren't measuring every 5 minutes....at some point ecosense probably had 1.5 or 2"

Didn't NWS change their measuring methods for Co-ops, etc this year? If I remember there is to be NO board clearing, only what the greatest depth in past 24 hours. I argued about this with someone due to 'invisible accumulations' and the fact it would destroy snow ratios values that would occur during upslope and or lake streamers where it'd snow 1 with .05 liquid, melt off then 2.3 with .15 liquid, mostly melt off then another 1 inch and 0.05 liquid. They want you to report only 2.3? Where'd the other 2 go? :unsure:

Even worse, you now have 0.25 liquid on 2.3 inches of snow (9.2-1) instead of the 0.25 on 4.3 (17.2-1) ratio. Those two 0.05's don't disappear from your gauge just because the snow melted. :axe:  CoCoRaHS last I knew was still advocating the 6 hour snow clearing for boards.

 

EDIT- found the paragraph from NWS's snow measuring methods from Sept 2013-

3.1.3.
How to handle short events or multiple events in a 24-hour period
While acknowledging there is no perfect way of measuring snowfall, the following best practice accommodates the observer while ensuring the best consistency.
If the snow event ends well before the end of the 24-hour observing period
make the 24-hour measurement at the end of the snow event, if possible.
For example if the snow event ends at 1PM, make the snowfall measurement at that time. If snow falls later in the 24-hour period an additional measurement
can be made but report only the largest accumulated snowfall total.
No matter how many times it snows during the 24-hour period report only the
SINGLE highest snowfall amount that accumulated on the SMB.
Only clear the snowboard at the end of the 24-hour observing period.
If you cannot take a measurement at the end of the snow event, measure it as soon as possible after the event ends and no later than the official observation time.
See Figure 1 as an example.

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4" on 3/30

 

Monthly Summary:

Nov - .25
Dec - 15.75
Jan - 17.5
Feb - 32
Mar - 17.25
 
Total 82.75
 
Lat 39.54
Long  -76.98
 
Details:

11/27 - .25

12/8 - 8.75

12/10 - 4.25

12/14 - 2.25

12/17 - .25

12/26 - .25

1/2 - 6

1/18 - 0.5

1/21 - 10.75

1/28 - .25

2/3 - 2.5

2/9 - 1.5 

2/12-13 - 24.75

2/15 - .5

2/18 - 1.5

2/25 - .5

2/26 - .75

3/3 - 5.5

3/17 - 5.25

3/25 - 2.5

3/30 - 4

 

Thats just epic. All the years I lived up that way, yeah we generally got more snow than surrounding areas, but nothing close to that!

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My station at Gaithersburg 2 WNW just had 19.2" of snow during March, and is up to 56.6" of snow for the 2013-2014 winter season. This places this winter as my  4th snowiest season in my 35 years of records, only surpassed by the winters of 2009-2010, 1995-96 and 2003-04. 

 

Other seasonal totals I know of for this winter include 83.5" in Millers MD, 88.5" in Manchester MD (both in northern Carroll County near the PA border), and 175.8" in Canaan Heights WV, at 3715' in elevation, officially known as Davis 2SE in cooperative observer terms. If interested, I can track down a few more stations locally in the DC/Baltimore area. Just reply to this post. 

 

Thanks

 

The snowywalrus of Gaithersburg

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Ian and I are working on a post for CWG, the map will be shared when the post is final

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Since there was a debate about measuring, I'd like to add that I don't sweep my measuring table unless it hasn't melted by the onset of the next event.  I don't care what NWS says, snow doesn't matter to me unless it is on the ground.  If it compacts, then it compacts.  I only care about what ultimately accumulates on the ground and what I can see and play in.

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That measurement way is pretty bad, and there is no perfect way--

 

We had about 8 then sleet mixed in but it was heavy and for a while, it accumulated on top. Compression set it..but then it flipped to snow and a good half inch was on top that crust, then it was back to sleet and freezing rain and ended with another inch of snow. Not counting that snow is odd-- I mean, it was plowed, it caused havoc, etc. 

 

our local TV guy reported it as 10, and was at 10.5.. 

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Adding yesterday's because this is the only place that I keep a record and I want to recall it.

 

12/8 5"
12/10 2"
12/14 1"
12/26 .25"
1/2 6"
1/21 8.5"
1/28 .5"
2/3 .5"
2/9 .75"
2/12 - 13   19"
2/18 1"

2/25  .5"

2/26   1.5"

3/3     3"

3/16 - 17   6.75"

3/25   1.0"

3/30   .5"

4/15   .25"

Season: 58"

 

Latitude  39.370925

Longitude  -76.721651

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Bump me up 0.1" to 60.6". Won't make any contouring difference I'm sure.

No, it won't ;)

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I want that 60" contour 1 more pixel to my SE dammit!

I think I had to fudge your total as it was, to 62, so the contour would actually go past your location. I'm not drawing the contours by hand, so the process I use is taking the data and filling in gaps where data doesn't exists.

So in some cases if a location is borderline, the contour stops short depending on the data around it. I believe you are the furthest south 60" point so it wasn't actually bringing the line below you. The fudge made it do so.

That was probably incredibly confusing...

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I think I had to fudge your total as it was, to 62, so the contour would actually go past your location. I'm not drawing the contours by hand, so the process I use is taking the data and filling in gaps where data doesn't exists.

So in some cases if a location is borderline, the contour stops short depending on the data around it. I believe you are the furthest south 60" point so it wasn't actually bringing the line below you. The fudge made it do so.

That was probably incredibly confusing...

Thanks :)  I want recognition for my 60"!  

 

Kind of surprised I'm the furthest south 60" spot.  Do you just mean in my immediate vicinity?  Most of HoCo had 60"+ except maybe the tiny sliver south of 95.  

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Thanks :) I want recognition for my 60"!

Kind of surprised I'm the furthest south 60" spot. Do you just mean in my immediate vicinity? Most of HoCo had 60"+ except maybe the tiny sliver south of 95.

I only have a handful of spots for HoCo, you being the furthest south in the county. All others are in the 60s. But just across the way in AA county are spots in the 40s, so it's making the 50 range much larger than it probably should be due to your spot being so borderline.

Brighton Dam is mid 50s so it's pulling 50s into HoCo as well. So the 60 contour doesn't fill the while county like it probably should.

If you have other reliable points for Howard that we can use, please share them! I have only four spots in Howard right now.

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Whaaaaa??!?!??! I was looking forward to the 0.1" contour color scale on a 10m x 10m grid. What kind of map girl are you?

My 0.1" last night bumped Clarksburg up to 65.2".

:lol:

I meant to ask you, is your lat/long correct? It puts you smack dab in the middle of MoCo but I know Clarksburg is more northern MoCo.

I have: 39.4, -77.16 for your location which currently is surrounded by locations in the mid to upper 50s. While places northwest of you, where I think Clarksburg is, are in the 60s/70s

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:lol:

I meant to ask you, is your lat/long correct? It puts you smack dab in the middle of MoCo but I know Clarksburg is more northern MoCo.

I have: 39.4, -77.16 for your location which currently is surrounded by locations in the mid to upper 50s. While places northwest of you, where I think Clarksburg is, are in the 60s/70s

I'm excited about this map. Can't wait to see it

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CoCoRaHS VA-AL-3


(my backyard)


2012-2013  25.9


 


2011-2012  16.5


 


2010-2011  19.5


 


2013-2014   


11-13   T


11-24   T


11-26   0.1


11-27   T


11-28   T


12-9    1.2


12-11  T


12-14  1.4


12-15  T


12-16  T


12-17  T


12-18  T


12-25  T


12-31  T


01-03  0.1


01-04  T


01-06  T


01-07  T


01-16  T


01-17  T


01-18  0.1


01-19  T


01-20  T


01-21  0.2


01-22  6.0


01-23  T


01-24  T


01-26  0.5


01-29  5.1


02-06  T


02-08  T


02-09  0.1


02-13  14.3


02-14  3.0


02-15  T


02-16  T


02-17  T


02-18  0.4


02-26  T


02-27  T


03-03  0.2


03-04  3.2


03-07  T


03-13  T


03-14  T


03-17  3.0


03-18  0.2


03-25  T


03-26  2.0


03-30  T


03-31  T


04-16  T


 


Total   41.1


Still a remote chance of snow (2012 and 1978 come to mind), but I'll call this final for now.


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:lol:

I meant to ask you, is your lat/long correct? It puts you smack dab in the middle of MoCo but I know Clarksburg is more northern MoCo.

I have: 39.4, -77.16 for your location which currently is surrounded by locations in the mid to upper 50s. While places northwest of you, where I think Clarksburg is, are in the 60s/70s

 

Poor location setting (and typing) on my part.  Here's the location of my back yard, which is where all my measurements take place:  Lat - Lon:  39.234,-77.268, Clarksburg, MD.  Does that plot better? 

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Poor location setting (and typing) on my part. Here's the location of my back yard, which is where all my measurements take place: Lat - Lon: 39.234,-77.268, Clarksburg, MD. Does that plot better?

Yes, much better. Thank you!

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