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bluewave

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  1. Yeah, that was in the era of much colder Februaries. When we get cold these days in February, it really stands out. The coldest recent February was 2015 with the weak El Niño. Our only February below 0° was during the Super El Niño in 2016. Those 1970s La Niñas were during our long 10”+ snowstorm drought from 1970 to 1977. This winter we already have 2. NYC February average temperature 1970-1980....32.4° 2010-2020....36.0°
  2. Updated for this most recent event from Jan 31 to Feb 2, 2021. Bloomingdale, NJ 26.2 in 0100 AM 02/02 Trained Spotter
  3. This could be our first La Niña winter in 30 years when NYC finishes with a cold departure in February and it’s the snowiest month. Even the 1995-1996 winter couldn’t pull off this feat. While it had a cold departure in February, the snowiest winter month was January. Just goes to show how competing influences during the last 3 winters overrode ENSO climatology. NYC La Ninas last 30 years Temperature departures Snowfall Season.....Dec....Jan....Feb 20-21......+1.7....+2.2.....? ................10.5.....2.1.....14.8...so far 17-18......-2.5......-0.9......+6.7 ................7.7......11.2......4.9 16-17......+0.8....+5.4.....+6.3 ................3.2.......7.9......9.4 11-12......+5.8....+4.7.....+5.6 .................0.0.....4.3........0.2 10-11......-4.7.....-2.9......+0.7 ...............20.1.....36.0.....4.8 08-09......+0.6.....-4.7.....+1.4 .................6.0......9.0......4.3 07-08.......+4.9.....+3.9....+0.5 .................2.9........T.........9.0 05-06.......-2.2.......+8.3.....+0.4 ..................9.7.......2.0......26.9 00-01......-6.4......+1.0....+0.6 ................13.4......8.3......9.5 99-00......+2.4......-1.3.....+3.5 ..................T.........9.5.......5.2 98-99.......+5.6.....+1.3.....+3.5 .................2.0........1.5.......4.7 95-96.......-5.1......-2.1.......-1.5 .................11.5......26.1......21.2
  4. Walt, excellent post as usual. This is a map illustrating the February peak in Northeast snowstorms. The other thing that stands out in the research you provided is the historic number of storms during the last 15 years. The 51 Northeast snowstorms is off the charts counting all months in the snowfall season. 2006-2007 to 2020-2021.....51 storms 1991-1992 to 2005-2006.....30 storms 1975-1976 to 1990-1991.....25 storms 1960-1961 to 1974-1975......24 storms 1945-1946 to 1959-1960..... 20 storms
  5. We are playing with loaded snow dice so below normal snowfall seasons are harder to achieve these days.
  6. One or two down years in a row seems to be the max before snowfall rebounds in our snowier climate since 02-03.
  7. Sneaky warm layer at 850 mb. SFC 1002 23 -0.5 -1.3 94 0.8 -0.8 13 24 272.4 273.0 272.2 281.8 3.46 1 1000 42 -1.0 -2.0 93 1.0 -1.4 14 21 272.2 272.7 271.8 281.1 3.31 2 950 449 -4.1 -4.1 100 0.0 -4.1 27 52 273.1 273.6 271.8 281.2 2.97 3 900 876 -1.6 -2.0 97 0.4 -1.7 52 70 279.9 280.5 276.7 290.1 3.67 4 850 1334 0.1 -0.3 97 0.4 -0.0 71 57 286.3 287.1 280.8 298.8 4.41 5 800 1818 -2.1 -2.9 94 0.8 -2.5 83 52 288.9 289.5 281.3 300.0 3.85 6 750 2327 -6.6 -6.6 100 0.0 -6.6 73 54 289.4 289.9 280.7 298.5 3.10 7 700 2868 -4.8 -4.8 100 0.0 -4.8 118 63 297.1 297.8 284.8 308.5 3.81
  8. First time this winter that the EPS weeklies corrected colder the closer we got to the forecast period. Feb 1-8 Feb 8-15
  9. Nice band of heavy snow across the whole South Shore of Suffolk. MacArthur/ISP HVY SNOW 31 30 96 NE29G43 29.87F VSB 1/4 WCI 16 Shirley HVY SNOW 31 28 89 NE12G24 29.90F VSB 1/4 WCI 22 Westhampton HVY SNOW 32 30 92 NE20G35 29.91F VSB 1/4 WCI 20
  10. Getting heavy snow now in SW Suffolk and 31.3°. The snowfall rate rapidly increased in the last 15 minutes with this 40 DBZ band.
  11. Light to moderate snow here in SW Suffolk and 31°. I am under that 30 DBZ yellow band on radar. The higher reflectivities are more a function of the very large snow flakes than the actual rate of the snow here.
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