Northof78 Posted February 17, 2021 Share Posted February 17, 2021 NAM now has long duration storm though...not ending till Fri night... Link to comment Share on other sites More sharing options...
NJwx85 Posted February 17, 2021 Share Posted February 17, 2021 Subtle changes on the 18z NAM vs the 12z NAM. The warm air comes in a bit faster but it's also very close with 700mb temps maxing out at perhaps +1C. That could probably be overcome by heavier precipiptation. Link to comment Share on other sites More sharing options...
SnoSki14 Posted February 17, 2021 Share Posted February 17, 2021 2 minutes ago, NJwx85 said: Subtle changes on the 18z NAM vs the 12z NAM. The warm air comes in a bit faster but it's also very close with 700mb temps maxing out at perhaps +1C. That could probably be overcome by heavier precipiptation. I think that'll be the case. If the precip is heavier it'll be snow, lighter & more sleet though the first 4-5 hours should be all snow. I do think the heaviest snows will be a bit north of where models show as is nearly always the case. Link to comment Share on other sites More sharing options...
sferic Posted February 17, 2021 Share Posted February 17, 2021 10 minutes ago, crossbowftw3 said: WWA for 3-7 here: ...WINTER WEATHER ADVISORY IN EFFECT FROM 3 AM THURSDAY TO 7 PM EST FRIDAY... * WHAT...Snow expected. Total snow accumulations of 4 to 7 inches. * WHERE...In Pennsylvania, Pike and Wayne counties. In New York, Sullivan county. * WHEN...From 3 AM Thursday to 7 PM EST Friday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact commutes starting with Thursday morning. Why not WSW ? Because of the long duration threshold vs inches fallen? Link to comment Share on other sites More sharing options...
NJwx85 Posted February 17, 2021 Share Posted February 17, 2021 Just now, Northof78 said: NAM now has long duration storm though...not ending till Fri night... It's still pretty much over by Friday morning except for light snow. Same deal as what happened with the last big storm. Accumulating snows should be over with by sunrise except for far Eastern areas. Link to comment Share on other sites More sharing options...
crossbowftw3 Posted February 17, 2021 Share Posted February 17, 2021 Just now, sferic said: Why not WSW ? Because of the long duration threshold vs inches fallen? correct. generally speaking only 1-2" will be falling for every 6 hours of this storm's residence. Link to comment Share on other sites More sharing options...
NJwx85 Posted February 17, 2021 Share Posted February 17, 2021 Just now, sferic said: Why not WSW ? Because of the long duration threshold vs inches fallen? The criteria is 7" for a warning up in that area but confidence of reaching that usually has to be at least 60%. As I have always said, doesn't matter if you have a watch/warning/advisory ect. What matters is what actually falls. 1 Link to comment Share on other sites More sharing options...
NJwx85 Posted February 17, 2021 Share Posted February 17, 2021 Just now, crossbowftw3 said: correct. generally speaking only 1-2" will be falling for every 6 hours of this storm's residence. No, the high end is 7" so more than likely warning criteria will not be met. Link to comment Share on other sites More sharing options...
HeadInTheClouds Posted February 17, 2021 Share Posted February 17, 2021 Albany has Dutchess county in WWA for 3-5 inches. Link to comment Share on other sites More sharing options...
LibertyBell Posted February 17, 2021 Share Posted February 17, 2021 7 hours ago, EpicHECS said: Hmmm. That's an awfully unusual setup. Why would there be more snow where all of the mixing is supposed to occur? lol Think your map might be upside down lol. because that historically has happened several times, the mixing only happens after most of the snow has already fallen and that area has the highest precip totals which matters more than like 20% mixing (if that). It's not that unusual, that's why coastal Central NJ jackpots so often. Link to comment Share on other sites More sharing options...
sferic Posted February 17, 2021 Share Posted February 17, 2021 6 minutes ago, crossbowftw3 said: correct. generally speaking only 1-2" will be falling for every 6 hours of this storm's residence. Same here..I love LONG duration events Link to comment Share on other sites More sharing options...
weatherpruf Posted February 17, 2021 Share Posted February 17, 2021 1 hour ago, coastalplainsnowman said: Is the one that dropped 18" on Atlantic City and 12" on Montauk but missed NYC metro? I always remember it being later in the season. It may have been Feb, it was a long time ago...my first year teaching, and school was canceled. Never saw a flake. Link to comment Share on other sites More sharing options...
Northof78 Posted February 17, 2021 Share Posted February 17, 2021 Warnings up for most of PHL zones.... Link to comment Share on other sites More sharing options...
NorthShoreWx Posted February 17, 2021 Share Posted February 17, 2021 1 hour ago, coastalplainsnowman said: On the flip side, I wonder if anyone here remembers the nearly "reverse bust" that occurred one morning in either 1998 or 1999 (but I think 1998.) A threat that no one was really talking about at all materialized way offshore, but was enough to give Montauk a 14" blizzard (at least that's what the news was calling it) while there was literally nothing but cloudiness at the Nassau/Suffolk border. I still remember watching the radar over my dialup, amazed (and really aggravated) at how how well defined the cutoff was. http://www.northshorewx.com/19990225SnowTotals.html 1 Link to comment Share on other sites More sharing options...
LibertyBell Posted February 17, 2021 Share Posted February 17, 2021 1 hour ago, coastalplainsnowman said: Is the one that dropped 18" on Atlantic City and 12" on Montauk but missed NYC metro? I always remember it being later in the season. Feb 1989 predicted to be 6-8 but it was all virga, 20 inches ACY, 10 inches PHL and 2-5" on the eastern end of LI, nothing west of ISP. Dec 1989 also predicted to be a 6-8 event in a historically cold month but it warmed up during the storm and we got 90% rain lol Link to comment Share on other sites More sharing options...
weathermedic Posted February 17, 2021 Share Posted February 17, 2021 Upton going with wwa for the area Link to comment Share on other sites More sharing options...
L.I.Pete Posted February 17, 2021 Share Posted February 17, 2021 1 hour ago, coastalplainsnowman said: On the flip side, I wonder if anyone here remembers the nearly "reverse bust" that occurred one morning in either 1998 or 1999 (but I think 1998.) A threat that no one was really talking about at all materialized way offshore, but was enough to give Montauk a 14" blizzard (at least that's what the news was calling it) while there was literally nothing but cloudiness at the Nassau/Suffolk border. I still remember watching the radar over my dialup, amazed (and really aggravated) at how how well defined the cutoff was. Me...I went to a public meeting in Southold for four hours and came out to like 8" of snow on my little Sentra. Ride home was harrowing until I got to William Floyd Parkway...almost nothing west of there. Link to comment Share on other sites More sharing options...
LibertyBell Posted February 17, 2021 Share Posted February 17, 2021 1 hour ago, USCG RS said: I remember Paul Kocin on the NWS explaining what went wrong later that evening. what went wrong is they got the forecast wrong lol, overreliance on unreliable models for our loss. 1 Link to comment Share on other sites More sharing options...
SleetStormNJ Posted February 17, 2021 Share Posted February 17, 2021 Just now, weathermedic said: Upton going with wwa for the area Cautious based on the evolutions suggested, but I get it with the modeling currently - can always upgrade tonight/early tomorrow AM. Link to comment Share on other sites More sharing options...
Brian5671 Posted February 17, 2021 Share Posted February 17, 2021 3 minutes ago, LibertyBell said: Feb 1989 predicted to be 6-8 but it was all virga, 20 inches ACY, 10 inches PHL and 2-5" on the eastern end of LI, nothing west of ISP. Dec 1989 also predicted to be a 6-8 event in a historically cold month but it warmed up during the storm and we got 90% rain lol I don't think Phlly got anything from Feb 1989. I lived about 15 miles N and W of the city at the time and it was bone dry. Woke up to sun shining dimly through the overcast-knew it was over right away.... Link to comment Share on other sites More sharing options...
LibertyBell Posted February 17, 2021 Share Posted February 17, 2021 Just now, L.I.Pete said: Me...I went to a public meeting in Southold for four hours and came out to like 8" of snow on my little Sentra. Ride home was harrowing until I got to William Floyd Parkway...almost nothing west of there. that must have been 1999 in 1998 we had less than one inch for the entire winter until 5" a surprise snowfall on the first day of spring. 1 Link to comment Share on other sites More sharing options...
Brian5671 Posted February 17, 2021 Share Posted February 17, 2021 6 minutes ago, Brett said: The local stations are saying all accumulating snow is over by daybreak on Friday probably true-won't accumulate much if it's lighter rates with temps near freezing during the day time Link to comment Share on other sites More sharing options...
LibertyBell Posted February 17, 2021 Share Posted February 17, 2021 Just now, Brian5671 said: I don't think Phlly got anything from Feb 1989. I lived about 15 miles N and W of the city at the time and it was bone dry. it sounds like you experienced the same cut off we did. The airport itself had some snow, it might have been 8 or 10. But the cut off really was that extreme Link to comment Share on other sites More sharing options...
mikem81 Posted February 17, 2021 Share Posted February 17, 2021 Less and Less Precip every run so far today... Link to comment Share on other sites More sharing options...
Snowlover11 Posted February 17, 2021 Share Posted February 17, 2021 really doesnt make sense but ok. 5-9” Link to comment Share on other sites More sharing options...
MJO812 Posted February 17, 2021 Share Posted February 17, 2021 Uh WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM THURSDAY TO 7 PM EST FRIDAY... * WHAT...Snow expected. Snowfall accumulations of 3 to 6 inches are expected Thursday, with total snowfall accumulations of 5 to 9 inches by the end of the event on Friday. A light glaze of ice accumulation is possible Thursday Night as well. Link to comment Share on other sites More sharing options...
MJO812 Posted February 17, 2021 Share Posted February 17, 2021 Winter Storm Warning for Philly Link to comment Share on other sites More sharing options...
USCG RS Posted February 17, 2021 Share Posted February 17, 2021 13 minutes ago, NorthShoreWx said: http://www.northshorewx.com/19990225SnowTotals.html I remember this as well. Yaphank was getting slammed with heavy snow and then you went 8-10 miles west and it was nothing. Link to comment Share on other sites More sharing options...
LibertyBell Posted February 17, 2021 Share Posted February 17, 2021 15 minutes ago, NorthShoreWx said: http://www.northshorewx.com/19990225SnowTotals.html I liked the storm in 1992 a lot better where we got 8-10 inches and there was much less both east and west of us that was a 30 hour snowstorm here! Link to comment Share on other sites More sharing options...
Brian5671 Posted February 17, 2021 Share Posted February 17, 2021 1 minute ago, MJO812 said: Uh WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM THURSDAY TO 7 PM EST FRIDAY... * WHAT...Snow expected. Snowfall accumulations of 3 to 6 inches are expected Thursday, with total snowfall accumulations of 5 to 9 inches by the end of the event on Friday. A light glaze of ice accumulation is possible Thursday Night as well. it's spread over 2 days so technically not warning criteria Link to comment Share on other sites More sharing options...
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