jm1220 Posted yesterday at 09:17 PM Share Posted yesterday at 09:17 PM 13 minutes ago, nycsnow said: Lot of people starting to have snow mix back in… anyone here? Needle flakes that aren’t piling up much but yes. Enough to reduce visibility. 1 Link to comment Share on other sites More sharing options...
weatherpruf Posted yesterday at 09:21 PM Share Posted yesterday at 09:21 PM 24 minutes ago, JustinRP37 said: That’s the thing I don’t think I’ve ever seen so many early closings and cancellations for Monday as with this storm. The media has basically made it sound like the apocalypse. I think by mid morning tomorrow we are looking pretty much back to normal. Could be wrong but it doesn’t look like it. its the ice justin....there remains a threat of zr. its really nasty out. with the cold temps its a recipe for disaster. i don't want my kids on 287 in that. Link to comment Share on other sites More sharing options...
JustinRP37 Posted yesterday at 09:28 PM Share Posted yesterday at 09:28 PM 4 minutes ago, weatherpruf said: its the ice justin....there remains a threat of zr. its really nasty out. with the cold temps its a recipe for disaster. i don't want my kids on 287 in that. Up here we never switched to sleet or freezing rain. We should be wrapped up by around 1am. Tomorrow the sun may even peak out by 10-12. 1 Link to comment Share on other sites More sharing options...
donsutherland1 Posted yesterday at 09:42 PM Share Posted yesterday at 09:42 PM The New York City area and its nearby suburbs has seen a significant snowfall today. Although parts of the region have transitioned to sleet, widespread snowfall amounts of 6" or above have occurred. The outcome is largely the result of the system's dynamics, as the warm air came in aloft as per the consensus of the guidance. From yesterday: Prior to the warming of the mid-levels tomorrow afternoon, soundings showed a strongly saturated dendritic growth zone (DGZ) between –12°C and –17°C. That is almost ideal for producing large, fluffy dendritic flakes. There was also strong lift and high saturation supporting very efficient snow growth and high snow-liquid ratios, especially in areas with stronger banding. In short, for 3-4 hours there could be snowfall rates of 1" per hour and perhaps 2" per hour at times. That's when most of the snow will fall in and around New York City. The visibility could fall under one-quarter mile during the periods of heaviest snow. Thundersnow seems unlikely in most of the area as there isn't a convective signature in the soundings. It is these dynamics, not 10:1 snow-liquid ratio maps that tell the story of what continues to look to be a significant snowfall in and around New York City. During the course of the snowfall, all of New York City's sites (Bridgeport, Central Park, Islip, JFK Airport, LaGuardia Airport, Newark, and White Plains) reported visibilities of 0.25 miles or less. The 1"-2" per hour rates occurred during this period of heavy snow. IMO, the focus on the dynamics, not varying model solutions largely drove what appear in line to be the more accurate forecasts. Chasing the models from run-to-run created the perception that there was greater uncertainty than what actually was present. PNS from 2:06 pm (not final): 764 NOUS41 KOKX 251906 PNSOKX CTZ005>012-NJZ002-004-006-103>108-NYZ067>075-078>081-176>179-260706- Public Information Statement National Weather Service New York NY 206 PM EST Sun Jan 25 2026 ...SNOWFALL REPORTS... Location Amount Time/Date Provider ...Connecticut... ...Fairfield County... 4 S Greenwich 8.2 in 0117 PM 01/25 Public 1 SE Norwalk 7.5 in 1259 PM 01/25 Public 2 ENE New Canaan 7.0 in 0109 PM 01/25 Trained Spotter Bridgeport Airport 6.7 in 0100 PM 01/25 Official NWS Obs Bethel 6.0 in 0111 PM 01/25 Emergency Mngr 4 NNW New Fairfield 5.3 in 1159 AM 01/25 Trained Spotter Bethel 5.0 in 1215 PM 01/25 Emergency Mngr 4 SSE Easton 5.0 in 1249 PM 01/25 3 WSW Shelton 5.0 in 1230 PM 01/25 Trained Spotter Danbury 4.6 in 1130 AM 01/25 Amateur Radio 1 ENE Monroe 3.7 in 1115 AM 01/25 Trained Spotter ...Middlesex County... 1 SW Westbrook 4.0 in 1229 PM 01/25 Public ...New Haven County... Milford 5.0 in 0100 PM 01/25 Trained Spotter North Madison 5.0 in 0106 PM 01/25 Emergency Mngr West Haven 4.0 in 1240 PM 01/25 Trained Spotter Meriden 3.5 in 1200 PM 01/25 Trained Spotter Wallingford 3.2 in 1205 PM 01/25 Trained Spotter ...New London County... 3 SSE Gales Ferry 4.0 in 0144 PM 01/25 Public 2 SSE Ledyard Center 3.2 in 0100 PM 01/25 Trained Spotter 1 SSW New London 2.8 in 1227 PM 01/25 Cocorahs ...New Jersey... ...Bergen County... Leonia 9.2 in 0141 PM 01/25 Public 1 NNW Cliffside Park 9.0 in 0133 PM 01/25 Public 1 N River Vale 9.0 in 0115 PM 01/25 Trained Spotter 2 NNE Franklin Lakes 7.6 in 1219 PM 01/25 Trained Spotter 1 SSW River Edge 7.5 in 1235 PM 01/25 Cocorahs 1 SSE Fair Lawn 7.3 in 0120 PM 01/25 1 NNW Cliffside Park 7.2 in 1231 PM 01/25 Public 1 NE Ridgefield 6.5 in 1250 PM 01/25 Public 1 S Fair Lawn 5.5 in 1215 PM 01/25 Trained Spotter 1 WSW Wallington 5.4 in 1123 AM 01/25 Trained Spotter Fair Lawn 4.0 in 1111 AM 01/25 Trained Spotter ...Essex County... 1 E North Caldwell 9.4 in 0123 PM 01/25 Amateur Radio 1 NE North Caldwell 9.1 in 0150 PM 01/25 Public 1 NW Newark 9.0 in 0147 PM 01/25 Public 1 W North Caldwell 8.5 in 0100 PM 01/25 Cocorahs 1 NW Newark 8.1 in 0102 PM 01/25 Public 1 WNW Bloomfield 8.0 in 0120 PM 01/25 1 NE North Caldwell 8.0 in 1255 PM 01/25 1 SE Millburn 6.8 in 0120 PM 01/25 Public 1 SE Montclair 6.5 in 1153 AM 01/25 Public ...Hudson County... 1 ENE Jersey City 7.1 in 0107 PM 01/25 Public Harrison 6.0 in 1156 AM 01/25 CO-OP Observer 1 W Hoboken 5.1 in 1151 AM 01/25 Trained Spotter ...Passaic County... 1 S Pompton Lakes 9.5 in 0146 PM 01/25 Trained Spotter 2 NE Wayne 8.2 in 1249 PM 01/25 Public Passaic 6.5 in 1205 PM 01/25 Public ...Union County... Newark Airport 8.0 in 0100 PM 01/25 Official NWS Obs 1 SSW Westfield 7.7 in 1232 PM 01/25 Public 1 NE Union 7.5 in 0115 PM 01/25 Trained Spotter 1 WNW Elizabeth 5.2 in 1145 AM 01/25 Public ...New York... ...Kings County... Sheepshead Bay 8.1 in 1248 PM 01/25 Public 2 NNE Bay Ridge 8.0 in 1245 PM 01/25 Public 1 SSE Williamsburg 6.0 in 1209 PM 01/25 Public 3 NW Flatbush 5.6 in 1123 AM 01/25 Public 1 N Bay Ridge 4.0 in 1117 AM 01/25 Public ...Nassau County... Matinecock 9.2 in 1245 PM 01/25 Public East Williston 9.1 in 0153 PM 01/25 Public 1 N Syosset 8.6 in 0130 PM 01/25 Trained Spotter 1 E East Meadow 8.0 in 0139 PM 01/25 Public 1 SW Matinecock 7.0 in 1233 PM 01/25 Public 1 N Syosset 6.6 in 1230 PM 01/25 Trained Spotter 1 ENE Glen Cove 6.0 in 1107 AM 01/25 Public 1 ENE East Meadow 5.8 in 0110 PM 01/25 Emergency Mngr 1 WNW Glen Head 5.7 in 1115 AM 01/25 Public 1 WSW Levittown 5.3 in 1200 PM 01/25 NWS Employee Carle Place 4.9 in 1145 AM 01/25 Amateur Radio 1 E Searingtown 3.5 in 1100 AM 01/25 Trained Spotter Seaford 3.0 in 1234 PM 01/25 Public Roosevelt 2.5 in 1100 AM 01/25 Trained Spotter ...New York (Manhattan) County... Washington Heights 8.3 in 0145 PM 01/25 Public Central Park 7.2 in 0100 PM 01/25 Official NWS Obs ...Orange County... 1 SSW Middletown 8.2 in 1230 PM 01/25 Fire Dept/Rescue 1 NNE Chester 7.0 in 1228 PM 01/25 Public Highland Mills 7.0 in 1200 PM 01/25 Trained Spotter Cornwall on Hudson 6.5 in 1215 PM 01/25 Trained Spotter 3 SSW Pine Bush 6.0 in 1254 PM 01/25 Public Warwick 6.0 in 1100 AM 01/25 NWS Employee Florida 5.5 in 1125 AM 01/25 Trained Spotter Middletown 5.0 in 1130 AM 01/25 Trained Spotter Montgomery 4.0 in 1107 AM 01/25 Trained Spotter Newburgh 4.0 in 1156 AM 01/25 Trained Spotter ...Putnam County... 2 W Putnam Valley 7.3 in 0115 PM 01/25 Trained Spotter Mahopac 7.0 in 0135 PM 01/25 Amateur Radio ...Queens County... 1 W Bellerose 9.0 in 0145 PM 01/25 Trained Spotter 1 ESE Fresh Meadows 7.1 in 0131 PM 01/25 Public NYC/La Guardia 7.1 in 0100 PM 01/25 Official NWS Obs 2 S Elmhurst 6.0 in 1255 PM 01/25 Public NYC/JFK 6.0 in 0100 PM 01/25 Official NWS Obs 2 NNW Greenpoint 4.3 in 1120 AM 01/25 Public ...Richmond County... Dongan Hills 7.8 in 1145 AM 01/25 Public 2 NE Westerleigh 7.0 in 1205 PM 01/25 Public ...Rockland County... Monsey 10.0 in 0130 PM 01/25 Public 1 NW Stony Point 10.0 in 0125 PM 01/25 Public Thiells 9.5 in 1245 PM 01/25 Trained Spotter 1 SE Montebello 8.8 in 0102 PM 01/25 Public Suffern 8.5 in 1229 PM 01/25 Emergency Mngr Pearl River 6.3 in 1130 AM 01/25 Amateur Radio New City 6.1 in 1200 PM 01/25 Trained Spotter ...Suffolk County... 1 W Nesconset 7.9 in 0102 PM 01/25 Public 1 N Setauket-East Seta 7.3 in 0130 PM 01/25 NWS Employee Copiague 7.0 in 0125 PM 01/25 Trained Spotter 1 SW East Northport 7.0 in 0102 PM 01/25 Trained Spotter Huntington Station 7.0 in 0135 PM 01/25 Trained Spotter 1 SSW Miller Place 6.5 in 0100 PM 01/25 Public 1 ENE Commack 6.0 in 0101 PM 01/25 Broadcast Media 1 W Hauppauge 6.0 in 1240 PM 01/25 Trained Spotter South Huntington 6.0 in 0117 PM 01/25 Broadcast Media Islip Airport 5.8 in 0100 PM 01/25 Official NWS Obs Deer Park 5.5 in 1222 PM 01/25 Trained Spotter 1 ENE Commack 5.0 in 1215 PM 01/25 Broadcast Media Mount Sinai 5.0 in 1203 PM 01/25 CO-OP Observer 1 N Smithtown 5.0 in 1207 PM 01/25 Public Saint James 4.9 in 1216 PM 01/25 Public Upton (NWS Office) 4.8 in 0100 PM 01/25 Official NWS Obs 3 WNW Riverhead 4.7 in 1252 PM 01/25 2 E Plainview 4.5 in 1227 PM 01/25 Public Islip Airport 4.0 in 1200 PM 01/25 Official NWS Obs 3 ENE Sag Harbor 3.7 in 1200 PM 01/25 Public 1 WNW Jamesport 2.9 in 1204 PM 01/25 Public 1 SE East Patchogue 2.8 in 1123 AM 01/25 NWS Employee ...Westchester County... 2 ENE Bedford 8.1 in 0128 PM 01/25 Public 2 N Mamaroneck 6.5 in 1217 PM 01/25 Public Mount Vernon 6.5 in 1130 AM 01/25 Amateur Radio 2 ENE Peekskill 6.4 in 1232 PM 01/25 Public White Plains 6.0 in 1130 AM 01/25 Amateur Radio Yorktown Heights 6.0 in 1130 AM 01/25 Amateur Radio Mamaroneck 5.5 in 1130 AM 01/25 Amateur Radio 2 E Ossining 5.2 in 1121 AM 01/25 Public 1 NE North Castle 5.0 in 1120 AM 01/25 Public Hartsdale 4.8 in 1130 AM 01/25 Amateur Radio && Link to comment Share on other sites More sharing options...
nycsnow Posted yesterday at 10:20 PM Share Posted yesterday at 10:20 PM Def some more snow mixing in now Link to comment Share on other sites More sharing options...
RU848789 Posted yesterday at 10:45 PM Share Posted yesterday at 10:45 PM Just got in from shoveling a 3rd time, but this was the 2" of mostly sleet that have fallen since around 1 pm (6" worth of 10:1 snow by mass) and it was tough. So, between 3 and 5 pm we got 1" of pure sleet giving us 2" since 1 pm, when we had 8.3", so we're now at 10.3" of sleet/snow, besting my 10.1" guess. It's up to 17F and hoping no ZR in the last 0.4-0.5 QPF the HRRR says we'll get (mostly sleet) by midnight, but the HRRR is showing 0.1" ZR. What a storm! Link to comment Share on other sites More sharing options...
Stormlover74 Posted yesterday at 10:47 PM Share Posted yesterday at 10:47 PM 1 minute ago, RU848789 said: Just got in from shoveling a 3rd time, but this was the 2" of mostly sleet that have fallen since around 1 pm (6" worth of 10:1 snow by mass) and it was tough. So, between 3 and 5 pm we got 1" of pure sleet giving us 2" since 1 pm, when we had 8.3", so we're now at 10.3" of sleet/snow, besting my 10.1" guess. It's up to 17F and hoping no ZR in the last 0.4-0.5 QPF the HRRR says we'll get (mostly sleet) by midnight, but the HRRR is showing 0.1" ZR. What a storm! Do you also measure snow/sleet depth? Just curious how much compacting there has been Link to comment Share on other sites More sharing options...
mgerb Posted yesterday at 11:17 PM Share Posted yesterday at 11:17 PM 26 minutes ago, Stormlover74 said: Do you also measure snow/sleet depth? Just curious how much compacting there has been I had 7.6" around the time of transition, and every time I went back out to measure each hour, it remained at 7.6". So there was enough compaction to counter any sleet accum. Haven't been out since 4 PM though, so will check again at 7:00. Hopefully have resumed a bit of accumulation since then, rather than only making the existing back denser (but not deeper). Link to comment Share on other sites More sharing options...
RU848789 Posted yesterday at 11:18 PM Share Posted yesterday at 11:18 PM 32 minutes ago, RU848789 said: Just got in from shoveling a 3rd time, but this was the 2" of mostly sleet that have fallen since around 1 pm (6" worth of 10:1 snow by mass) and it was tough. So, between 3 and 5 pm we got 1" of pure sleet giving us 2" since 1 pm, when we had 8.3", so we're now at 10.3" of sleet/snow, besting my 10.1" guess. It's up to 17F and hoping no ZR in the last 0.4-0.5 QPF the HRRR says we'll get (mostly sleet) by midnight, but the HRRR is showing 0.1" ZR. What a storm! As of 6 pm, we've gotten 2.5" of mostly sleet since 1 pm (1/2" the past hour, which is 1.5" worth of snow as we've been under an intense band); that brings our total up to 10.8" of snow/sleet and we have a shot at a foot. 17F. Link to comment Share on other sites More sharing options...
mgerb Posted yesterday at 11:21 PM Share Posted yesterday at 11:21 PM I also don't clear the board except for ob time. If I cleared the board at transition, would obviously have more, but that's not really kosher (at least for CoCoRaHS). 1 Link to comment Share on other sites More sharing options...
RU848789 Posted yesterday at 11:24 PM Share Posted yesterday at 11:24 PM 4 minutes ago, mgerb said: I had 7.6" around the time of transition, and every time I went back out to measure each hour, it remained at 7.6". So there was enough compaction to counter any sleet accum. Haven't been out since 4 PM though, so will check again at 7:00. Hopefully have resumed a bit of accumulation since then, rather than only making the existing back denser (but not deeper). Clear the board after a change from snow to sleet and combine the two measurements. I've gotten 2.5" of sleet after 8.3" of snow for 10.8", but undisturbed areas have about 10" right now, due to compaction (I have a crusty 2" from last weekend, so I can use the snow on top of that for a good measurement). https://theconversation.com/how-is-snowfall-measured-a-meteorologist-explains-how-volunteers-tally-up-winter-storms-175628 1 Link to comment Share on other sites More sharing options...
mgerb Posted yesterday at 11:30 PM Share Posted yesterday at 11:30 PM 9 minutes ago, RU848789 said: Clear the board after a change from snow to sleet and combine the two measurements. I've gotten 2.5" of sleet after 8.3" of snow for 10.8", but undisturbed areas have about 10" right now, due to compaction (I have a crusty 2" from last weekend, so I can use the snow on top of that for a good measurement). https://theconversation.com/how-is-snowfall-measured-a-meteorologist-explains-how-volunteers-tally-up-winter-storms-175628 Yup, saw that's how what you do. That's not how it's done in CoCoRaHS and COOP, so I don't really agree with this article. Rather, the maximum accumulation over the prior day of all snow/sleet is what is reported each day. That said, passing this along to some "snow experts" to see if they've ever heard of this practice. Link to comment Share on other sites More sharing options...
wishcast_hater Posted 23 hours ago Share Posted 23 hours ago Whats going on with the Low Pressure developing off the coast? Link to comment Share on other sites More sharing options...
RU848789 Posted 19 hours ago Share Posted 19 hours ago Sleet finished up around 9:15 pm and we added 0.2" more sleet for 3.5" total sleet + 8.3" snow for a grand total of 11.8" (unless we get some light snow overnight, which is possible), exceeding my 10.1" guess which I actually thought was aggressive yesterday morning, lol. Season total is up to 29.3", which is more than an average winter (about 28" in NB) and we have a lot more winter to go with plenty of cold air over the next 2 weeks and a few chances for more snow. Just reached our high temp for the day of 20F. My 4th and last shovel of the last 2" of dense sleet was tough - gonna sleep well tonight. Link to comment Share on other sites More sharing options...
mulen Posted 11 hours ago Share Posted 11 hours ago 25.5 My cousins house Pearl river NY sweet . Me 0 inches Port ST Lucie Fla. 1 Link to comment Share on other sites More sharing options...
IrishRob17 Posted 11 hours ago Share Posted 11 hours ago 10 minutes ago, mulen said: 25.5 My cousins house Pearl river NY sweet . Me 0 inches Port ST Lucie Fla. mulen, good to see ya! Link to comment Share on other sites More sharing options...
mulen Posted 10 hours ago Share Posted 10 hours ago Thanks go back to the TWC days time flies then they threw us out lol been doing the tropical thing the last 10 yrs living down here glad you guys have ole man winter kicking ass i was wondering if weatherfella is still around ? Link to comment Share on other sites More sharing options...
rclab Posted 9 hours ago Share Posted 9 hours ago 1 hour ago, mulen said: Thanks go back to the TWC days time flies then they threw us out lol been doing the tropical thing the last 10 yrs living down here glad you guys have ole man winter kicking ass i was wondering if weatherfella is still around ? Yes he is and as active/sharp as ever in the New England forum. I renem him being one of the few posters to get a straight up compliment from DT in the old forums 30 plus years ago. As always ….. Link to comment Share on other sites More sharing options...
RU848789 Posted 7 hours ago Share Posted 7 hours ago 12 hours ago, RU848789 said: Sleet finished up around 9:15 pm and we added 0.2" more sleet for 3.5" total sleet + 8.3" snow for a grand total of 11.8" (unless we get some light snow overnight, which is possible), exceeding my 10.1" guess which I actually thought was aggressive yesterday morning, lol. Season total is up to 29.3", which is more than an average winter (about 28" in NB) and we have a lot more winter to go with plenty of cold air over the next 2 weeks and a few chances for more snow. Just reached our high temp for the day of 20F. My 4th and last shovel of the last 2" of dense sleet was tough - gonna sleep well tonight. But wait, there's more. We got 1/4" of snow overnight, bringing our total up to 12.0". I feel beat up after yesterday after shoveling ~18" worth of snow (3.5" of sleet has the mass of 10.5" of 10:1 snow and we had 8.3" of snow that was probably about 12:1 or ~7" of 10:1 snow). And driving wise, as I showed last night, driving on sleet is probably worse than on snow as it slides more easily, plus it melts more slowly. My 12.0" is higher than most in my area, but that's because I followed meteorologist Bill Syrett's (from PSU's renowned weather lab) guidance to measure the sleet separately to avoid compaction (would've been 11.0" just measuring depth); until this storm I've been lower than folks in Metuchen and Edison this winter.https://theconversation.com/how-is-...-how-volunteers-tally-up-winter-storms-175628 Link to comment Share on other sites More sharing options...
NorthShoreWx Posted 7 hours ago Share Posted 7 hours ago A couple of my half-baked thoughts about the modeling in general: Good job for the most part with QPF (not withstanding the bizarre ukmet qpf hole and some other model run faux pas) Decent job with the sleet extent once they caught on to the warm nose. I thought I had a good handle from the modeling on what was going to happen in this region, and that was correct. I had a lot less confidence in what was going to happen in the Mid-Atlantic region. Seemed like more variation in the modeling for there, although I didn't look at it as closely. Most modeling held off too long on flipping LI back to snow last night. I had the impression we'd wake up to some freezing drizzle and temps between 25 and 30; 18⁰ and snowing is what verified. At least on the north shore we were going back to snow around 10pm. My loosely considered model consensus had a substantial warm nose persisting through most of the overnight. Overall for my insulated little corner of the world, my landscape looks very much like what I was expecting it to a few days ago...moreso than usual so subjectively, the modeling was very good. The NWS did a good job too. They more or less stayed with a forecast that eventually verified well through many forecast cycles. Complaining about tweaks like adjusting P&C totals from 9 to 14 inches down to 7 to 13 inches is petty, especially when both pretty well reflected the eventual outcome. 2 Link to comment Share on other sites More sharing options...
RU848789 Posted 6 hours ago Share Posted 6 hours ago 17 hours ago, mgerb said: Yup, saw that's how what you do. That's not how it's done in CoCoRaHS and COOP, so I don't really agree with this article. Rather, the maximum accumulation over the prior day of all snow/sleet is what is reported each day. That said, passing this along to some "snow experts" to see if they've ever heard of this practice. Yes, I know that's what CoCoRaHS recommends, which I disagree with and I'd rather follow the recommendations of Bill Syrett, head of PSU's esteemed weather observatory for decades. For me the issue with sleet, in particular, is that when it falls on top of snow it will always compact that snow. I had 11.8" of snow/sleet combining my separate measurements of 3.5" of sleet and 8.3" of snow before that, but that was 10.8" just measuring depth which is significant compaction, whereas if they fell in reverse order I likely would've had about 11.8". I'd rather have a system that gives the same measurement independent of order. Furthermore, IMO, the meteorological community has always wrongly been focused on snow depth with forecasts/outcome, when their job is to convey impact and risk and frozen mass does a much better job of that than measured depth. As a result, sleet, which has the same mass as snow for a given QPF, is greatly underestimated for impact based on depth. For example, 3" of sleet at 3:1 has the same mass as 9" of 10:1 snow and i would argue they have the same impact with regard to transportation/driving and shoveling/plowing, where anyone who removes snow knows that mass is the key, not depth. In addition, sleet melts far more slowly than snow, given its much lower surface area to volume ratio (as melting only occurs at the surface not in the interior). Given all of that, I'd rather not discount sleet even further by reporting a compacted depth which doesn't convey the true impact of that precipitation and going further, I think a way needs to be found to use frozen mass as the measure of impact not depth, but I know I'm probably just howling at the moon. At the very least, though, the NWS and media mets could do a much better job of conveying the impacts from sleet, educating the public that sleet is ~3X more dense than snow, such that each inch of sleet has the same mass as 3" of snow. One more point. While the NWS recommends the public to only measure once every 24 hours, that kind of makes no sense to me, since their instructions for measuring snow at NWS sites is to measure every 6 hours, clearing the board after each measurement and summing the 4 totals for the final total. I think they only ask for one measurement per day from the general public so they don't turn everyone off from measuring snow (who wants to measure 4X a day other than weenies like folks on weather boards or those paid to do so). And if every 6 hours is good enough for the NWS sites, it's good enough for me - and note that in yesterday's case, using the NWS approach, I would've measured 2" of snow at 7 am, 8.3" of snow at 1 pm, when it changed to sleet, so I would've cleared the board, and at 7 pm I would've measured 2.9" of sleet and another 0.6" of sleet at 1 am for a total of 11.8" snow/sleet, which is what I got by simply clearing the board once around 1 pm when the sleet started. chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://www.weather.gov/media/coop/Snow_Measurement_Guidelines-2014.pdf Link to comment Share on other sites More sharing options...
NorthShoreWx Posted 1 hour ago Share Posted 1 hour ago 4 hours ago, RU848789 said: ... For me the issue with sleet, in particular, is that when it falls on top of snow it will always compact that snow. I'm in the 'wipe the board on phase changes' camp. Here is an example scenario illustrating some of the possible outcomes of only wiping once per 24 hours and not at phase changes. Some of it isn't that far off from the reality of yesterday's event: - location 1 gets 8" of low water content fluffy snow and the storm ends. - location 2 gets the same 8" of low water content fluffy snow which then switches to sleet and 2" of sleet accumulate on top of it. By the end of the storm later that day the snow depth has compressed to 8" (or less). - location 3 gets 2" of sleet first, followed by the same 8" of fluffy snow. - locations 1 and 2 report snowfall as the maximum depth of 8" - location 3 reports a maximum depth of 10" as the daily snowfall. Location 3 no doubt had the deepest snow depth. Location 2 and 3 had the exact same amount of snow and sleet, but a different entry in the climate record. Location 2 had more than twice as much frozen precipitation as location 1, but the only way to tell that is from the SWE. They each report the same amount of snow and sleet. On thing that stands out as being lost in these examples is the standard that snowfall includes snow and sleet. Does it really include sleet for location 2? Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now