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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, 30 Aug 2007

    Weekend Weather Forecast- Thurs PM
    Things are still looking great for the weekend, as high pressure from Canada is expected to build in from Saturday through Monday.

    Sat 9/1: Becoming sunny and seasonable. Dry. High 85

    Sun 9/2: Sunny, dry and warm. High 85

    Mon 9/3: Sunny and warm. High 88

    posted: Aug 30 2007 at 3:51 pm

    [/weather/aug07] permanent link

    Wed, 29 Aug 2007

    Weekend Weather Outlook- Wed AM
    It's hard to believe, but the models are showing a dry and sunny Labor Day weekend from Saturday through Monday. I don't think I've ever seen a fully dry, nice Labor Day weekend. As they used to say on Saturday Night Live, "there's always something." :-) But right now, all looks real nice.

    posted: Aug 29 2007 at 6:53 am

    [/weather/aug07] permanent link

    Mon, 27 Aug 2007

    Labor Day Weekend Outlook- Mon PM
    High pressure is expected to push in behind a cold front passing through late Thursday. The Canadian high will bring clear, dry weather to us over the weekend. Cooler temperatures are expected to moderate during the weekend.

    posted: Aug 27 2007 at 8:31 pm

    [/weather/aug07] permanent link

    Sun, 26 Aug 2007

    Weekend Weather Forecast- Sun AM
    A weak cold front will very slowly pass through Sunday. Moisture at all levels of the atmosphere will cause considerable cloudiness for Sunday.

    Last night's high resolution WRF run has our area mostly cloudy and dry until early evening, when thunderstorms will form, mostly from Philadelphia south and east.

    Sun 8/26: Mostly cloudy. Chance of a light spit. Humid, high in the low 80s. Thunderstorms develop during the evening, especially from Philly, south and east.

    posted: Aug 26 2007 at 10:16 am

    [/weather/aug07] permanent link

    Sat, 25 Aug 2007

    Weekend Weather Forecast- Sat PM
    A weak cold front will very slowly pass through late tonight into Sunday. Moisture at all levels of the atmosphere will cause considerable cloudiness for Sunday.

    The latest NAM has showers late morning through early afternoon.

    Sun 8/26: Mostly cloudy, with scattered showers through mid day. Humid, high in the low to mid 80s.

    posted: Aug 25 2007 at 9:32 pm

    [/weather/aug07] permanent link

    Weekend Weather Forecast- Sat PM
    A weak cold front will very slowly pass through late tonight into Sunday. Moisture at all levels of the atmosphere will cause considerable cloudiness for Sunday. There will likely be some bright spots or breaks of sun during the day, but mostly cloudy should capture it.

    As for precipitation, there's a chance of light scattered showers in the morning. The GFS continues with light precipitation, but the NAM has most of the shower activity later in the afternoon and evening.

    Sun 8/26: Mostly cloudy, with some occasional bright spots/maybe some sun early afternoon. Light scattered showers around mid morning, then mostly cloudy as above. Humid, high in the mid to upper 80s. Showers later in the afternoon and evening.

    posted: Aug 25 2007 at 9:03 pm

    [/weather/aug07] permanent link

    Fri, 24 Aug 2007

    Weekend Weather Outlook- Fri PM
    High humidity will be with us through much of Sunday. Moisture at upper levels will cause varying amounts of cloudiness at mid and high levels, reducing the potential high temperatures.

    A weak cold front will move through late Saturday night into Sunday and may stall near Delaware and Cape May. Low pressure waves forming on the front may produce some locally heavy rain Sunday night.

    Most of the weekend will be dry during the daytime. It's not clear how prevalent the showers will be with the stalled front on Sunday.

    Sat 8/25: Some clouds until mid morning, then partly sunny, hot and very humid. High 94. Chance of a shower at night

    Sun 8/26: A mix of clouds and some sun, as a front moves through. A chance of a shower, but most of the day dry until the late afternoon. Humid, with a high in the upper 80s. Degree of cloudiness and amount of showers not a certainty.

    posted: Aug 24 2007 at 8:01 pm

    [/weather/aug07] permanent link

    Weekend Weather Outlook- Fri AM
    Hot air returns to our area this weekend, with the humidity being most prominent

    There are differences in the models for the weekend, as the GFS is much hotter temp wise, while the NAM is more humid with somewhat less extreme temps.

    Also differences in cloud cover, with the GFS having more sun, while the NAM has more haze and clouds. A weak cold front moves through Saturday night, possibly stalling. I'm leaning towards the NAM this weekend.

    Sat 8/25: A mix of clouds and some sun, hazy, hot and very humid. High 96. Chance of a shower at night.

    Sun 8/26: A mix of clouds and some sun, as a front moves through. A chance of a shower, but most of the day dry. Humid, with a high 89. Amount of cloudiness not certain at this time.

    posted: Aug 24 2007 at 4:33 am

    [/weather/aug07] permanent link

    Wed, 22 Aug 2007

    Weekend Weather Outlook- Wed PM
    This unusual prolonged wet easterly flow in August is expected to dissipate, as high pressure builds in and winds shift to the southwest.

    A weak pattern for the coming weekend, as a cold front is expected to fall apart as it moves through Saturday night and Sunday. A mix of clouds and sun with a chance of a shower this weekend, although the models aren't particularly wet.

    Sat 8/25: Partly sunny, very hot and very humid. High mid 90s. Chance of a shower at night

    Sun 8/26: A mix of clouds and some sun, as a front moves through. A chance of a shower, but most of the day dry. Humid, with a high in the 80s. Amount of cloudiness not certain at this time.

    posted: Aug 22 2007 at 9:19 pm

    [/weather/aug07] permanent link

    Sun, 19 Aug 2007

    Weekend Weather Forecast- Sun AM
    The models blew it this weekend, as both the GFS and NAM failed to accurately predict the return of moisture to our area on Sunday with the stalled front. (I had some suspicion of this with Friday's forecast, but I went along with the models for Saturday's forecast, despite the GFS showing significant moisture return on Sunday.)

    Sun 8/19: Cloudy with showers during the day and heavier rain and possibly a thunderstorm at night. High in the 60s!

    posted: Aug 19 2007 at 4:24 am

    [/weather/aug07] permanent link

    Sat, 18 Aug 2007

    Weekend Weather Forecast- Sat AM
    High pressure has built in today, with cool temperatures and low humidity. The frontal boundary that passed through yesterday has stalled to our south and will be the focal point for low pressure systems to develop and pass through starting Sunday night.

    The latest GFS has significant moisture moving back in during the day on Sunday, with cloudiness increasing.

    Sat 8/18: Mostly sunny and pleasant. High near 80.

    Sun 8/19: Some sun early, then increasingly cloudy during the morning hours. Most of the day is now looking considerably cloudy. High upper 70s.

    posted: Aug 18 2007 at 7:48 am

    [/weather/aug07] permanent link

    Weekend Weather Forecast- Fri PM
    High pressure builds in for Saturday, but begins drifting off to the northeast during Sunday. The frontal boundary that passed through this evening returns as a warm/stationary front late on Sunday, bringing a chance of showers late Sunday or Sunday night. Some uncertainty about when the moisture will return.

    Sat 8/18: Mostly sunny and pleasant. High near 80.

    Sun 8/19: Sunny in the morning, some cloudiness starts moving in during the afternoon. Chance of showers late. High 85.

    posted: Aug 18 2007 at 7:47 am

    [/weather/aug07] permanent link

    Fri, 10 Aug 2007

    Weekend Forecast- Fri PM
    The cold front moved through and much cooler air has flowed in behind the front. Some instability clouds on Saturday, as cool air aloft may cause cloud formation. Much warmer temperatures return for Sunday.

    Sat 8/11: Sunny early, then a mix of clouds and sun. Cooler! High 80.

    Sun 8/12: Sunny and seasonably warm. High 88.

    posted: Aug 10 2007 at 8:24 pm

    [/weather/aug07] permanent link

    Thu, 09 Aug 2007

    Weekend Forecast- Thurs AM
    A cold front will move through early Friday, with showers and thunderstorms. High pressure will build in for the weekend.

    Sat 8/11: Mostly sunny and warm. High in the mid 80s.

    Sun 8/12: Sunny and hot, but not too humid. High 93. Some clouds possible late.

    posted: Aug 09 2007 at 5:59 am

    [/weather/aug07] permanent link

    Wed, 08 Aug 2007

    Weather Outlook- Wed AM
    Today's GFS MOS predicts a high temp of 102. The Eta-MOS predicts a high of 98. High temps, close to 100 is a good bet for Wednesday.

    (The models didn't necessarily predict the rain this morning. We'll see how they do wit the tempertures.)

    The weekend is looking dry and partly sunny. Temps in the 80s.

    posted: Aug 08 2007 at 5:31 am

    [/weather/aug07] permanent link

    Sun, 05 Aug 2007

    Weather Outlook- Sunday Early PM
    A more interesting pattern this week, as a frontal boundary that moved through on Saturday will be a focal point for wave development and will be moving back up as a warm front on Monday.

    The models all have rain and possible thunderstorms developing late Sunday night into Monday morning. Dewpoints rise to the uncomfortable lower 70s later tonight after an earlier pleasant evening.

    More showers expected on Wednesday and Friday. Next weekend might be wet, as the GFS creates a coastal low. Too far away to hang your hat on next weekend's forecast.

    posted: Aug 05 2007 at 11:56 am

    [/weather/aug07] permanent link

    Fri, 03 Aug 2007

    Change in the Forecast- Fri PM
    The latest GFS and NAM model now downplays the wave that is forecasted to develop along the front on Sunday. Sunday looks much better, with any showers waiting for evening.

    Sat 8/4: Partly sunny and hot. High 97

    Sun 8/5: A mix of clouds and sun. Less hot. Chance of showers during the evening hours. High 89.

    posted: Aug 03 2007 at 5:02 pm

    [/weather/aug07] permanent link

    Thu, 02 Aug 2007

    Change in the Forecast- Thurs PM
    A change in the forecast for this weekend, as a front will move through on Saturday and then stall to our south. Low pressure will develop along the front in the midwest and move along it, bringing showers to us Sunday afternoon.

    Sat 8/4: Partly sunny and hot. High 97

    Sun 8/5: Becoming mostly cloudy in the morning. Showers in the afternoon. High 81.

    posted: Aug 02 2007 at 6:18 pm

    [/weather/aug07] permanent link

    Wed, 01 Aug 2007

    Week Weather Outlook- Wed
    High pressure will continue a flow of hot and increasingly humid air will be with us through Saturday. A weak cold front Saturday night will drop humidity and temperatures for Sunday and Monday, before the heat returns.

    At this time, very limited scattered showers or thunderstorms are expected with the late Saturday afternoon or evening.

    posted: Aug 01 2007 at 7:19 pm

    [/weather/aug07] 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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