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Glenn F. Schreiber DMD and Glenn Schreiber is theweatherguy writing about Philadelphia Weather [radar] [surface map] [disclaimer]
   

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  • Glenn F Schreiber
    aka "theweatherguy"

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    Thu, 20 Jan 2011

    Philly Winter Weather Update- Thur 9 PM
    The latest NAM model data is in line with the experimental HRRR model. Only 1-2 inches snow tonight, ending daybreak Fri. Less in NJ.

    The rest of the weekend will be very cold with highs in the 20s.

    posted: Jan 20 2011 at 9:09 pm

    [/weather/jan11] permanent link

    Philly Winter Weather Update- Thur PM
    Latest model outputs for PHL airport show about .27 inches water (NAM model), the QPF value (quantity of precip falling) and 0.23 inches water (GFS model). The NAM has been remarkably consistent with its QPF value, but today, the GFS model dropped back a bit. This still translates into about 2-4 inches of snow, ending daybreak on Friday.

    A new experimental model, the High Resolution Rapid Refresh model, predicts only 1-2 inches for our area, keeping the heavier snowfall in central PA. I'll look at this again later on, since this model is an ultra short range model, predicting only 15 hours ahead.

    The rest of the weekend will be very cold with highs in the 20s.

    posted: Jan 20 2011 at 7:42 pm

    [/weather/jan11] permanent link



    Disclaimer: I am not a meteorologist and provide this information as a hobby and for entertainment (mostly my own :-) . While attempts are made to predict the weather as best as I can, use at your own risk! I am NOT responsible for any direct or indirect consequential injury/damages due to your use of these forecasts. Always check the NWS Official Forecast for your final plans.

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