backedgeapproaching

It actually could be pretty ugly down this way...Euro has like 2-2.5" of rain and dews 40-45F for like 10 hours. Ughh. 

I will have to look at that NOHRSC site.

Firehouse usploping some into the Southern Daks and Southern Greens

On 1/19/2019 at 3:27 PM, backedgeapproaching said:

Absurd downslope in DDH.....might be overdone, shows like .4-.5" total precip. Actually just north of DDH. 3k nam  hates DDH, HIE, and other shadowed spots always.

 

DDH came in with .43" precip during the event.  I came in at 1.43"LE melted. -pretty big discrepancy for 2 western slope locations   Pretty much exactly what this 3K nam run showed from a few days ago though.  I feel like they had more than that though just driving through there and because of the wind factor.  I dont know how those ASOS stations work in windy conditions, must have missed some of the precip, Maybe @dendrite would know about how they perform in the wind.

No 6 hour clears with this event, I couldn't even find my board when my marker blew over. Driveway was pretty uniform depth wise though 11.5" averaged out-dense stuff. Maybe  more fell and compacted with the IP--who knows. Had some addt fluff this afternoon, so total was 12.7". My plow guy was surprised to see a foot in my driveway, mentioned other spots in town he plowed were less..not sure how much. ALY had I think 13-15" for here after it trended warmer and  north, so pretty close.

1 hour ago, ApacheTrout said:

14 inches total measured on the board, but getting tougher to measure, as the wind is picking up.  The board is still clean right now even after 30 minutes of moderate snow.

 

Great event for you guys up through BTV.

14 minutes ago, mreaves said:

I’m not in a great wind spot to begin with but I haven’t noticed any wind to speak of. 

Yeah, had some strong SE winds last night which are always bad here.  I honestly didn't think they were going to be that strong.Should have almost been a high wind warning for the western slopes down here.

Picking up a couple inches of some nice dendrites  on the back end now.

Measured 4" at midnight, then all hell broke loose with the winds over night, seemed like 30-50 mph gusts all night and into early AM. Drifts and a few bare spots in yard. Hard to really tell how much..everything seems blown off the top into the woods, it was definitely coming down pretty good overnight with the winds.

Temp jumped from 7F to 14F in very short order. Wind picked up too before the main bulk of the WAA precip moves in.

.7"  Moon and ridge line clearly visible with tiny needles coming down.

7F

Absurd downslope in DDH.....might be overdone, shows like .4-.5" total precip. Actually just north of DDH. 3k nam  hates DDH, HIE, and other shadowed spots always.

17 minutes ago, powderfreak said:

BTV's final forecast.  

Pretty darn uniform.  

Pretty much the same map as every Euro run for the past 5 days.

Going to have to rip here pretty good to get to that 15" before the pellets.

8F cold drain oozing down with -SN.

Temp still slowly dropping, down to 12F with -SN starting in SVT.

2 hours ago, wxmanmitch said:

Congrats Burlington, VT? Even Dendrite gets a lot of pellets per the 12z NAM. 

What a disaster!  No way I'm getting a 18-24" storm here now. 6-10" and then pellets/ZR should do it here, provided the front end performs as planned.

It may torch into the 50s all the way to BOS with a low topped squall line featuring downpours and rumbles for you. 

I'm sure ALY will take the totals down, down, down next update at least for immediate capital region and SVT, NW MA.

17F/8F

Lol, it is kind of funny how PF and crew up there might jack.  Definitely some taint concerns for Mitch and I down here in SVT now.

11 minutes ago, wxeyeNH said:

I just don't what Im missing.  This looks like a 9-14" snowfall region wide.  Where are these 18-24" amounts coming from?  Perhaps a few days ago with 2" plus qpf but the trend has been down.   To my eyes this is just a fairly regular NNE snowfall, easy to remove fairly low impact.  So much hype in my area. 

It seems to come down to getting into one of those fronto bands and racking up some high ratio stuff and getting some 15/18:1 ratios. Your right, the 2" qpf runs seem gone, so will need to have some nice snow growth and pile it up quickly.  Dendrite mentioned it in the other thread and ALY mentioned it in their disco too some.

Further north, expect snow rates to increase to 1
to 3 inches per hour with excellent pcpn efficiency in the
dendritic growth zone based on the plan view graphics and the
BUFKIT profiles.

A fluffy snowfall is expected from the Capital
Region/Berkshires north and west with 14-18:1 ratios

1 minute ago, wxmanmitch said:

No way in hell Bennington gets 22". I'd say 12" there maximum, likely less. They'll get shadowed on the east wind and may flirt with pingers for a bit Sunday AM.

You'll more likely avoid pingers at your latitude, but 22" still seems too high unless you get some midlevel fronto action. I'd go 14-18" for your spot. 

22" maybe here IMBY if I can avoid pingers.

Exactly--east/NE wind here isn't AS bad as a SE wind, but still will downslope. 

Only way to get 2ft in any valley town from DDH up through RUT is to rot under a deform band for a few hours and pile up some high ratio fluff.  It can happen, just don't think this is the event for it.

One of those March storms last year I think dropped in 30" in Adams MA, so it can happen. I think that was the same event you had the 18" in 3 hours, cant recall for sure though.

Definitely taking the under on 22" here. 

Yep, some decent squalls here as well. Fluffy dendrites mixed with some very rimed stuff.

1 hour ago, alex said:

I’m so confused. How are these pictures from today??? It looks like early fall. Is something funny happening with the board?

 

That's down south somewhere. I think eyewall lives in NC now.  Not sure where the pics are from.

Nice Shots! Love this one with the house and open field surrounded by forests of ice:

6 hours ago, wxeyeNH said:

Pretty clear to see the have's and have nots on today GOES image

I know SNE has struggled, but ALB has been screwed too, evident by that map. Every event they are either downsloping or its an elevation event and they are screwed that way too. Think they are round 10"-12" maybe?

2 hours ago, tamarack said:

That's the way to measure how much snow actually fell.  However, if you enter the depth on the ground, that's as it stands at observation time.  A crazy scenario- bare ground on, say, Dec. 10 at 7 AM.  Later that morning a quick 2" falls, but by sunset it's gone.  Then 3" new is on the board at the 7 AM obs time on 12/11.  One would report 5" snowfall but 3" depth.  If one captured LE for both the 2" and the 3", the sum would be entered.  If it were me and I was unable to get the 2" LE but had the 3" LE, I'd not report LE at all.

Right, its possible to get say 3" new snow and then it rains and at 7am you have 3" new and 0" depth.

Regarding the bolded, I would only report the LE if I added a note in the observations notes section saying i only got the LE for 3" of the 5". 

19 minutes ago, tunafish said:

For sure.  That's my concern with the PNS picking up my CoCoRaHS.   Doesn't reflect my true storm totals.

 

You're correct.  I'm almost always available to measure as I work around the corner from home and have the flexibility to step out.

 

That info you posted is super helpful, thank you!  My first winter reporting through CoCoRaHS. 

No problem. You would definitely lose a good amount of snow(data and reporting wise)always waiting to 7am like Dryslot said.

Nice that your able to go measure easily.

1 minute ago, dryslot said:

Hmm, In that case you can lose a lot from compaction, Melt or sublimation over that period depending on start and stop times for storm systems.

Right, your not supposed to do it that way if you can help it.  Seems like he was home and able to measure...so should have reported 1.5"

Just now, tunafish said:

Essentially, yes.  I measured for my event total after snow stopped (or flipped to rsin).  It was mid-late morning on both days.  So by 6AM the next day, it had melted down to .2.  Fine for CoCoRaHS,  misleading for the PNS that picks up my CoCoRaHS and reports it as an event total.

Actually if you are home and can do it---you should measure the 1.5" before it flipped to rain mid morning and note the 1.5" and LE, then report that as new snow the next morning. So new snow would be 1.5 to cocorahs with the snow LE.  Now if you not home and couldn't measure the 1.5" and then it rained and it was .2" when you got home, then you would report .2"

From Cocorahs

One of the difficulties with accurate and consistent snowfall measurement is related to the melting, settling, or evaporation of snow before you have a chance to measure it (especially in the Fall and Spring). Please try to do a measurement as close in time to when the storm ends as possible. Don't wait until 7AM if the snow ended the previous day. During long-duration snowfalls, you may choose to measure and clear the snowboard every six hours. The total snowfall would then be the summation of the different measurements

45 minutes ago, tunafish said:

My CoCoRaHS totals don't reflect storm totals.  Maybe I'm doing it wrong.  Measured 1.5" on both 1/8 & 1/9 after it stopped snowing each day.  My CoCoRaHS reports for 1/7 was 1", 1/8 was .2", and 1/9 was .2" (as that was all that was left when I made my morning observation.  I did not wipe my board.) So that PNS will show me at 1.4" when in reality my storm total was 3".

When did you measure the 1.5" each day. Are you saying you measured 1.5 at night on 1/8  and 1/9 and then it sublimated down to .2 each morning when you measured?