UnionWeatherWx Posted February 19, 2015 Share Posted February 19, 2015 You don't see this very often...... LOL.gif I've seen than 2-3 times now in the past 6 years. Impressive. Link to comment Share on other sites More sharing options...
bluewave Posted February 19, 2015 Share Posted February 19, 2015 Interesting article on Central Park snowfall measurement before the 1990's. http://www2.ucar.edu/atmosnews/perspective/14009/snowfall-measurement-flaky-history Official measurement of snowfall these days uses a flat, usually white, surface called a snowboard (which pre-dates the popular winter sport equipment of the same name). The snowboard depth measurement is done ideally every 6 hours, but not more frequently, and the snow is cleared after each measurement. At the end of the snowfall, all of the measurements are added up for the storm total. NOAA’s cooperative climate observers and thousands of volunteers with the Community Collaborative Rain, Hail and Snow (CoCoRaHS), a nationwide observer network, are trained in this method. This practice first became standard at airports starting in the 1950s, but later at other official climate reporting sites, such as Manhattan’s Central Park, where 6-hourly measurements did not become routine until the 1990s. Earlier in our weather history, the standard practice was to record snowfall amounts less frequently, such as every 12 or 24 hours, or even to take just one measurement of depth on the ground at the end of the storm. You might think that one or two measurements per day should add up to pretty much the same as measurements taken every 6 hours during the storm. It’s a logical assumption, but you would be mistaken. Snow on the ground gets compacted as additional snow falls. Therefore, multiple measurements during a storm typically result in a higher total than if snowfall is derived from just one or two measurements per day. That can make quite a significant difference. It turns out that it’s not uncommon for the snow on the ground at the end of a storm to be 15 to 20 percent less than the total that would be derived from multiple snowboard measurements. As the cooperative climate observer for Boulder, Colorado, I examined the 15 biggest snowfalls of the last two decades, all measured at the NOAA campus in Boulder. The sum of the snowboard measurements averaged 17 percent greater than the maximum depth on the ground at the end of the storm. For a 20-inch snowfall, that would be a boost of 3.4 inches—enough to dethrone many close rivals on the top-10 snowstorm list that were not necessarily lesser storms! Link to comment Share on other sites More sharing options...
IsentropicLift Posted February 19, 2015 Author Share Posted February 19, 2015 I've seen than 2-3 times now in the past 6 years. Impressive. I have family down in the Tamapa area and it has been very cold down there all Winter. Most days with highs not breaking 70F which is very rare for them. Link to comment Share on other sites More sharing options...
Sundog Posted February 19, 2015 Share Posted February 19, 2015 Interesting article on Central Park snowfall measurement before the 1990's. http://www2.ucar.edu/atmosnews/perspective/14009/snowfall-measurement-flaky-history Official measurement of snowfall these days uses a flat, usually white, surface called a snowboard (which pre-dates the popular winter sport equipment of the same name). The snowboard depth measurement is done ideally every 6 hours, but not more frequently, and the snow is cleared after each measurement. At the end of the snowfall, all of the measurements are added up for the storm total. NOAA’s cooperative climate observers and thousands of volunteers with the Community Collaborative Rain, Hail and Snow (CoCoRaHS), a nationwide observer network, are trained in this method. This practice first became standard at airports starting in the 1950s, but later at other official climate reporting sites, such as Manhattan’s Central Park, where 6-hourly measurements did not become routine until the 1990s. Earlier in our weather history, the standard practice was to record snowfall amounts less frequently, such as every 12 or 24 hours, or even to take just one measurement of depth on the ground at the end of the storm. You might think that one or two measurements per day should add up to pretty much the same as measurements taken every 6 hours during the storm. It’s a logical assumption, but you would be mistaken. Snow on the ground gets compacted as additional snow falls. Therefore, multiple measurements during a storm typically result in a higher total than if snowfall is derived from just one or two measurements per day. That can make quite a significant difference. It turns out that it’s not uncommon for the snow on the ground at the end of a storm to be 15 to 20 percent less than the total that would be derived from multiple snowboard measurements. As the cooperative climate observer for Boulder, Colorado, I examined the 15 biggest snowfalls of the last two decades, all measured at the NOAA campus in Boulder. The sum of the snowboard measurements averaged 17 percent greater than the maximum depth on the ground at the end of the storm. For a 20-inch snowfall, that would be a boost of 3.4 inches—enough to dethrone many close rivals on the top-10 snowstorm list that were not necessarily lesser storms! Which is why 96 is still king. LGA recorded a 24 inch depth at the end of the storm. There was less than an inch on the ground when the blizzard began. The airport also reported 24 inches from the blizzard as the snowfall total. Link to comment Share on other sites More sharing options...
uncle W Posted February 19, 2015 Share Posted February 19, 2015 Interesting article on Central Park snowfall measurement before the 1990's. http://www2.ucar.edu/atmosnews/perspective/14009/snowfall-measurement-flaky-history Official measurement of snowfall these days uses a flat, usually white, surface called a snowboard (which pre-dates the popular winter sport equipment of the same name). The snowboard depth measurement is done ideally every 6 hours, but not more frequently, and the snow is cleared after each measurement. At the end of the snowfall, all of the measurements are added up for the storm total. NOAA’s cooperative climate observers and thousands of volunteers with the Community Collaborative Rain, Hail and Snow (CoCoRaHS), a nationwide observer network, are trained in this method. This practice first became standard at airports starting in the 1950s, but later at other official climate reporting sites, such as Manhattan’s Central Park, where 6-hourly measurements did not become routine until the 1990s. Earlier in our weather history, the standard practice was to record snowfall amounts less frequently, such as every 12 or 24 hours, or even to take just one measurement of depth on the ground at the end of the storm. You might think that one or two measurements per day should add up to pretty much the same as measurements taken every 6 hours during the storm. It’s a logical assumption, but you would be mistaken. Snow on the ground gets compacted as additional snow falls. Therefore, multiple measurements during a storm typically result in a higher total than if snowfall is derived from just one or two measurements per day. That can make quite a significant difference. It turns out that it’s not uncommon for the snow on the ground at the end of a storm to be 15 to 20 percent less than the total that would be derived from multiple snowboard measurements. As the cooperative climate observer for Boulder, Colorado, I examined the 15 biggest snowfalls of the last two decades, all measured at the NOAA campus in Boulder. The sum of the snowboard measurements averaged 17 percent greater than the maximum depth on the ground at the end of the storm. For a 20-inch snowfall, that would be a boost of 3.4 inches—enough to dethrone many close rivals on the top-10 snowstorm list that were not necessarily lesser storms! this explains many measurements of past storms...Example January 11-14th 1964...12.5" was measured after the storm with a 13" snow depth...no snow was on the ground when it started...What you saw is what you got...this is why I started a snow depth chart to track snow depths... Link to comment Share on other sites More sharing options...
Voyager Posted February 19, 2015 Share Posted February 19, 2015 You don't see this very often...... LOL.gif I guess it's all in the perception...lol Miami forecast for today... Today: Sunny, with a high near 59. Wind chill values as low as 45 early. Windy, with a northwest wind 14 to 21 mph, with gusts as high as 26 mph. Link to comment Share on other sites More sharing options...
bluewave Posted February 19, 2015 Share Posted February 19, 2015 this explains many measurements of past storms...Example January 11-14th 1964...12.5" was measured after the storm with a 13" snow depth...no snow was on the ground when it started...What you saw is what you got...this is why I started a snow depth chart to track snow depths... If we raised pre-1990's snowfall seasons by 17%, then there would be more 50"+ seasons like we have been seeing recently. 1947-1948 would be close to 1995-1996. Link to comment Share on other sites More sharing options...
SnoSki14 Posted February 19, 2015 Share Posted February 19, 2015 Last chance to go below zero tonight. My lowest has been 2F, forecast is -1F so we'll see. I don't know about the city though it seems like they'll be stuck at 2-3F again. Link to comment Share on other sites More sharing options...
bluewave Posted February 19, 2015 Share Posted February 19, 2015 Which is why 96 is still king. LGA recorded a 24 inch depth at the end of the storm. There was less than an inch on the ground when the blizzard began. The airport also reported 24 inches from the blizzard as the snowfall total. The geographic coverage of the heavy snow with that one was what made it so extraordinary. Link to comment Share on other sites More sharing options...
JERSEYSNOWROB Posted February 19, 2015 Share Posted February 19, 2015 This winter hasn't been the same without Earthlight in here. The guy knows his stuff. Yeah I can check out his thoughts on his website, but loved when he gave his instantaneous PBP thoughts for upcoming storms. We still have some good guys here, so I'm not knocking anybody else, but missing Earthlight is HUGE for this forum. Link to comment Share on other sites More sharing options...
Cfa Posted February 19, 2015 Share Posted February 19, 2015 Meteorological winter is 90% complete. One more week to go. Link to comment Share on other sites More sharing options...
MJO812 Posted February 19, 2015 Share Posted February 19, 2015 Meteorological winter is 90% complete. One more week to go. Depressing Link to comment Share on other sites More sharing options...
Juliancolton Posted February 19, 2015 Share Posted February 19, 2015 I'll ride the GFS for this weekend, the Euro for the 25th, and the CMC for March 1. See? I'm blending model solutions like a good operational forecaster and completely unlike a weenie. Link to comment Share on other sites More sharing options...
UlsterCountySnowZ Posted February 19, 2015 Share Posted February 19, 2015 I'll ride the GFS for this weekend, the Euro for the 25th, and the CMC for March 1. See? I'm blending model solutions like a good operational forecaster and completely unlike a weenie. Seems legit Link to comment Share on other sites More sharing options...
Nibor Posted February 19, 2015 Share Posted February 19, 2015 I've been on the dividing line with most of the storms this winter. Places to the north, west, and east have gotten 12+ storms. None of my totals have been over 8 inches and yet I've had a solid snowpack for almost a month that'll probably last into March. Pretty awesome if you ask me. This is probably one of the better back end seasons I can remember (granted, I'm only 26). If the euro is on to something on the 25th no one should complain about this winter. Link to comment Share on other sites More sharing options...
UlsterCountySnowZ Posted February 19, 2015 Share Posted February 19, 2015 Doing a PBP on this site is like the guy who buys for the coffee fund at my job, thankless... If you don't tell people what a model says its "nam?" "Any word on GFS". "Eruo"? Blah blah. U tell people what a model says... May God help you if it's not 12+" of snow Link to comment Share on other sites More sharing options...
Nibor Posted February 19, 2015 Share Posted February 19, 2015 Of course the weekend storm thread imploded over a 50+ hr nam run. Just like us. Link to comment Share on other sites More sharing options...
BxEngine Posted February 19, 2015 Share Posted February 19, 2015 Doing a PBP on this site is like the guy who buys for the coffee fund at my job, thankless... If you don't tell people what a model says its "nam?" "Any word on GFS". "Eruo"? Blah blah. U tell people what a model says... May God help you if it's not 12+" of snow Ive been trying to delete the silly sh*t but im gonna ask stormtracker for a raise and combat pay soon. Lol Link to comment Share on other sites More sharing options...
IsentropicLift Posted February 19, 2015 Author Share Posted February 19, 2015 Ive been trying to delete the silly sh*t but im gonna ask stormtracker for a raise and combat pay soon. Lol I've already messaged you regarding a solution Link to comment Share on other sites More sharing options...
UlsterCountySnowZ Posted February 19, 2015 Share Posted February 19, 2015 KLGA drops .40" as rain and .19 as snow and I was insane cause I said it flipped lmao.... Link to comment Share on other sites More sharing options...
snowman19 Posted February 19, 2015 Share Posted February 19, 2015 Doing a PBP on this site is like the guy who buys for the coffee fund at my job, thankless... If you don't tell people what a model says its "nam?" "Any word on GFS". "Eruo"? Blah blah. U tell people what a model says... May God help you if it's not 12+" of snowIt's insane, If you tell them what the model is showing and they don't like it because it's not enough snow they violently attack you. It's crazy. Plus now certain posters inflate the totals to what they want to see, say rain is snow and post it as gospel, as if that is what the model is really showing. Just unreal Link to comment Share on other sites More sharing options...
IrishRob17 Posted February 19, 2015 Share Posted February 19, 2015 Ive been trying to delete the silly sh*t but im gonna ask stormtracker for a raise and combat pay soon. Lol You're overpaid. I've already messaged you regarding a solution No Link to comment Share on other sites More sharing options...
UlsterCountySnowZ Posted February 19, 2015 Share Posted February 19, 2015 It's insane, I'd you tell them what the model is showing and they don't like it because it's not enough snow they violently attack you. It's crazy. Plus now certain posters inflate the totals to what they want to see, say rain is snow and post it as gospel, as if that is what the model is really showing. Just unreal Yea I'll just stop tellin people unless it's good news so I'm not dubbed a downer.. I love snow as much as anyone here but I'm not some 16 year old who can't face what a model is showing, a more mature response to the nam would have been.. " hey it's the nam at 60hrs, let's see how this plays out" instead of stringing up the pbps by their neck lol Link to comment Share on other sites More sharing options...
IrishRob17 Posted February 19, 2015 Share Posted February 19, 2015 Yea I'll just stop tellin people unless it's good news so I'm not dubbed a downer.. I love snow as much as anyone here but I'm not some 16 year old who can't face what a model is showing, a more mature response to the nam would have been.. " hey it's the nam at 60hrs, let's see how this plays out" instead of stringing up the pbps by their neck lol A more mature person will just look at the damn model themselves and go about their day. Link to comment Share on other sites More sharing options...
Juliancolton Posted February 19, 2015 Share Posted February 19, 2015 This can all be avoided by forcing people to take the twelve seconds out of their lives to check the NAM for themselves. Link to comment Share on other sites More sharing options...
Juliancolton Posted February 19, 2015 Share Posted February 19, 2015 Darn. I'm not a copycat, I swear... Link to comment Share on other sites More sharing options...
IrishRob17 Posted February 19, 2015 Share Posted February 19, 2015 This can all be avoided by forcing people to take the twelve seconds out of their lives to check the NAM for themselves. You're a rather demanding person. Just sayin' Link to comment Share on other sites More sharing options...
UlsterCountySnowZ Posted February 19, 2015 Share Posted February 19, 2015 A more mature person will just look at the damn model themselves and go about their day. True that Link to comment Share on other sites More sharing options...
UlsterCountySnowZ Posted February 19, 2015 Share Posted February 19, 2015 One day I'm gonna coordinate with allsnow, and yanks to give an outragous play by play showing an epic blizzard (all made up obviously) so all the weenies that won't chexk for themselves go ape sh*# only to find out it was all a biggggg oldddd joke. I would def get banned for sure Link to comment Share on other sites More sharing options...
snowman19 Posted February 19, 2015 Share Posted February 19, 2015 Yea I'll just stop tellin people unless it's good news so I'm not dubbed a downer.. I love snow as much as anyone here but I'm not some 16 year old who can't face what a model is showing, a more mature response to the nam would have been.. " hey it's the nam at 60hrs, let's see how this plays out" instead of stringing up the pbps by their neck lolI don't get it. Yet another flame war and trolling fest because you and isentropic merely stated what the NAM showed, it wasn't even a forecast. Smh Link to comment Share on other sites More sharing options...
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