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wx_observer

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Posts posted by wx_observer

  1. 2 hours ago, Ginx snewx said:

    Hope things improve bro especially with this coming next Sat. 925 winds GFS Euro and qpf

    Screenshot_20240406_062620_Chrome.jpg

    Screenshot_20240406_062724_Chrome.jpg

    qpf_acc-imp.us_ne (2).png

    qpf_acc-imp.us_ne (3).png

    Nope.  No.  NO more rain.  Not when the water table is already so high that I'll need a dinghy and water wings to do the laundry if we get any more.

    • Like 1
  2. NEAR TERM /UNTIL 6 PM TUESDAY EVENING/...
    10 PM Update...
    
    The southward trend continues with 00z NAM, HRRR, WRF-ARW and
    WRF-NMM. Lowered accum north of the MA Pike where confidence is
    highest in less snowfall. As a result converted some of the
    warnings to advisories and dropped the advisory for NW MA. May
    have to lower amounts further south but no changes made along
    and south of the MA and will await full 00z model suite before
    making any changes.
    

     

  3. Fairly brutal BOX update...since I didn't see it posted here

    Well, I`ll get right to the point with this update, there`s been a
    big change to the forecast this afternoon based on a remarkably late
    but notable trend in the 12z/18z guidance which now keeps the bulk
    of the snow centered over the south coast of southern New England.
    This change is due not only to a southern shift in the track of the
    low but also a notable shift in the 500 mb trough; with a slower and
    less amplified solution and the northern and southern stream energy
    failing to phase/strengthen as they pass through the region. This
    shift has notably moved the zone of mid level frontogenesis to the
    south, and since we typically see the best forcing/banding to the
    northwest of the maxima this places southeast MA/Cape Cod and
    southern RI in the bullseye. BUFKIT soundings do indicate decent
    omega (forcing for lift) within the dendritic snow growth zone
    further north into MA, so we should still see some decent snowfall
    there, but the maxima looks to be south and east. While this is
    remarkably late in the game for such a relatively big shift, nearly
    all of the 12Z guidance including the 12Z ECMWF, 18Z NAM, 18Z HRRR
    and more show it. The new forecast calls for a swath of 6 to 10
    inches across southeast MA/RI with a pretty tight gradient to the
    north down to potentially nothing in far northwest MA. Uncertainty
    remains high, however, given marginal temperatures at onset (though
    good dynamics should help cool the column to overcome this) and
    potential for a shift back north with overnight guidance. This
    southern shift brings slightly cooler air which may help mitigate
    snow loading risk a bit, but a wet, and rather heavy snow continues
    to be expected. Blizzard conditions are possible, especially on the
    outer Cape where the strongest winds are expected, with gusts has
    high as 55 mph possible. Elsewhere winds will be gusty, blowing 30-
    40 mph over southeast MA and along the immediate coasts of MA and
    RI. The Winter Storm Warning has been expanded into Cape Cod and the
    islands while it has been downgraded to a Winter Weather Advisory
    for western and north central MA.
    • Thanks 1
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