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Mid January Discussion


earthlight

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Since we don't have the snow, at least we have the warmth... the CMC, ECM and UKMET have been showing this since yesterday's 0z runs (1/24 0z) and the NAM/GFS are now catching up, it's likely that sometime around Friday morning places especially near NYC surge to 55+ degrees. Perhaps there could be some thunderstorms involved as well with the heavy precipitation, the low pressure to the north and the surge of warm temperatures.

12z ECM temperatures for Friday show most of the area in the 54-61 degree range:

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NAM/GFS fail for tomorrow night's storm... it took the NAM until 36 hours out (this run) to solidify the phase, which the rest of the models except for the GFS have already been showing since yesterday morning. Each run has noticeably shifted towards more phasing, and the NAM still has some more room to shift the storm northwest with tomorrow's runs.

EDIT: The NAM now has the 60 degree mark:

post-1753-0-56594600-1327545761.png

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Anyone ready for some rumbles of thunder Friday?? :violin:

Strong winds are possible along with the potential thunder as well. I haven't seen much mentioned about the wind but with the increased phasing, there's also a stronger wind potential. With the latest NAM run, 925mb winds are near 60 knots on Friday morning, which would result in strong gusts for Friday morning. A strong pressure gradient also develops for Friday afternoon/evening which should keep the windy conditions in place.

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Models are running 6-8 degrees high on temps right now.

12z NAM had LGA at 42-43 degrees for now and temp is currently 36.

Chilly up this way.

REGIONAL WEATHER ROUNDUP

NATIONAL WEATHER SERVICE NEW YORK NY

100 PM EST THU JAN 26 2012

NYZ052-065-067-261900-

HUDSON VALLEY

CITY SKY/WX TMP DP RH WIND PRES REMARKS

NEWBURGH LGT SNOW 34 30 86 NE7 30.13F FOG WCI 28

MONTGOMERY FLURRIES 34 28 79 NE6 30.11F WCI 29

POUGHKEEPSIE LGT SNOW 35 29 78 CALM 30.13F

ALBANY CLOUDY 33 27 78 N3 30.14F

AREA FORECAST DISCUSSION

NATIONAL WEATHER SERVICE NEW YORK NY

1250 PM EST THU JAN 26 2012

.NEAR TERM /UNTIL 6 PM THIS EVENING/...

TIMING OF RAIN SHIELD ON RADAR BRINGS IT INTO FAR WESTERN ZONES

AROUND 18Z...SLIGHTLY FASTER THAN 12Z NAM...WHICH ALSO SEEMS TO BE

CUTTING OFF PRECIP SHIELD TOO FAR TO THE S. 12Z GFS SEEMS TO HAVE

A SLIGHTLY BETTER HANDLING ON ARRIVING PRECIP THIS AFTERNOON...SO

ADJUSTED TIMING TOWARDS THAT SOLUTION...MODIFYING IT BASED ON

LATEST RADAR TRENDS. STILL APPEARS WILL HAVE ENOUGH COLD AIR IN

LOW LEVELS MAINLY TO THE NW OF NYC...THAT COULD SEE SOME SLEET AND

POSSIBLY SOME SNOW MIXED IN AT THE START UP THERE. NO ACCUMULATION

EXPECTED.

BEFORE THE MAIN RAIN SHIELD ARRIVES ISO-SCT -SHSN/-SHRA/IP POSSIBLE

MAINLY OVER SE 1/2 OF THE CWA.

BASED ON LATEST TRENDS IN TEMPERATURES...DID TWEAK HIGHS DOWNWARD

A DEGREE OR SO AT MOST LOCATIONS...IN LINE WITH 12Z MAV/MET

3-HOURLY AND LAV/HRRR HOURLY TEMPERATURES.

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Euro and GFS agree with a potent northerm stream vort turning into a nasty little miller B next weekend. It looks warm to begin and cools down fast with cold HP nosing in.

I like this setup.

If we can get it to dig further S, a la February 10, 2010, then we'd be gold.

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