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Philadelphia Weekend Weather and Storm Forecasts
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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    Tue, 31 Aug 2010

    Tropical Weather Update -Tues PM
    As expected, the latest models continue to show a westward movement to the track of hurricaine Earl. The latest NOGAPS has the hurricaine hugging the coastline as far north as NJ. This might be a major storm event for the MD, DE and NJ shoreline.

    Stay tuned.

    posted: Aug 31 2010 at 8:13 pm

    [/weather/aug10] permanent link

    Tropical Weather Update -Tues AM
    High pressure will continue to bring hot temperatures to our area through Thursday. Temperatures will be in the mid 90s.

    Hurricaine Earl, which is expected to curve towards the NE, away from the eastern seaboard, around Thursday. While the tropical models are generally consistent with each other in terms of track, the models continue to show a bias towards the NE that is in error by 100+ kilometers or more in the long term.

    I expect that the coming days may revise the track of Earl even closer to our area. Stay tuned!

    posted: Aug 31 2010 at 7:17 am

    [/weather/aug10] permanent link

    Sun, 29 Aug 2010

    Weather Update -Sun PM
    High pressure will bring very warm (actually hot) temperatures to our area Monday through Thursday. Temperatures will be in the mid 90s.

    Of interest is hurricane Earl, which is expected to curve towards the NE, away from the eastern seaboard, around Thursday. I believe the current track of Earl is very uncertain, and there is the possibility that the high pressure giving us the heat may block the curvature of the storm away from us. Already, the NOGAPS model has the storm much closer to the east coast than it was showing a few days ago. So, to repeat, I expect that the coming days may revise the track of Earl even closer to our area. Stay tuned!

    posted: Aug 29 2010 at 5:32 pm

    [/weather/aug10] permanent link

    Sat, 28 Aug 2010

    Philadelphia Weekend Weather Update -Sat PM
    High pressure will build in for the weekend. The upper air flow will be from the northwest so dry and very pleasant weather is expected. things warm up by Sunday.

    Latest MOS forecasts have moved the high temperatures upward for Sunday through Tuesday. A very hot period for the beginning of the week with high temperatures being forecast as high as 97 degrees.

    Sun 8/29: Sunny and hot, although dewpoints not too high. High 93.

    posted: Aug 28 2010 at 5:44 pm

    [/weather/aug10] permanent link

    Thu, 26 Aug 2010

    Philadelphia Weekend Weather Forecast -Thurs PM
    High pressure will build in for the weekend. The upper air flow will be from the northwest so dry and very pleasant weather is expected. things warm up by Sunday.

    Sat 8/28: Sunny and very pleasant. High 85.

    Sun 8/29: Sunny and hot, although dewpoints not too high. High 91.

    posted: Aug 26 2010 at 9:26 pm

    [/weather/aug10] permanent link

    Tue, 24 Aug 2010

    Philadelphia Weekend Weather Forecast -Tues PM
    Following this very cool and damp pattern, high pressure will build in for the weekend. The upper air flow will be from the northwest so dry and very pleasant weather is expected.

    Sat 8/28: Sunny and very pleasant. High 85.

    Sun 8/29: Sunny, continued pleasant and warmer. High 89.

    posted: Aug 24 2010 at 9:34 pm

    [/weather/aug10] permanent link

    Sat, 21 Aug 2010

    Philadelphia Weekend Weather Update -Sat PM
    Latest models have a wet day for Sunday, as low pressure moving through NY state moves a warm front and then a cold front through. Showers start in the morning, then thunderstorms during the afternoon. There may be some sunny breaks in the overcast during the afternoon, but any sunshine will fuel the thunderstorms.

    Sun 6/22: Cloudy with showers in the morning, some sunny breaks in the cloud cover, thunderstorms in the afternoon. High 82.

    posted: Aug 21 2010 at 2:13 pm

    [/weather/aug10] permanent link

    Fri, 20 Aug 2010

    Philadelphia Weekend Weather Forecast -Fri PM
    As mentioned last night, a scenario similar to last weekend is developing, where high pressure will nose down from the northeast for Saturday. Unfortunately, there's a frontal boundary to our south. Low pressure is expected to develop to our west and move into NY state on Sunday. The low will drag a warm front through Saturday night and a cold front late Sunday. Showers will precede the cold front on Sunday.

    Sat 8/21: Sunny in the morning, increasing cloudiness in the afternoon. Increasing humidity at night. High 86.

    Sun 8/22: Mostly cloudy with showers and thunderstorms late morning and during the afternoon High 80.

    posted: Aug 20 2010 at 8:23 pm

    [/weather/aug10] permanent link

    Wed, 18 Aug 2010

    Philadelphia Weekend Weather Forecast -Wed PM
    The latest model has a similar scenario as last weekend, with high pressure nosing down from the northeast, keeping dry conditions for the weekend. As was the case last weekend, the high exited quicker than expected for Sunday, so we need to keep an eye on this again.

    Sat 8/21: Mostly sunny and very warm. High 88.

    Sun 8/22: Mostly sunny and hot. Some clouds possible in the afternoon. High 89

    posted: Aug 18 2010 at 10:06 pm

    [/weather/aug10] permanent link

    Tue, 17 Aug 2010

    Philadelphia Weekend Weather Forecast -Tues PM
    The upcoming weekend looks to have an uncertain forecast as a closed low in northern Canada rotates and retrogrades, pulling small disturbances to our north, and suppresses a frontal boundary to our south.

    Right now, the weekend looks mostly dry, although there is much uncertainty about some showers.

    Sat 8/21: Uncertain. Likely dry.

    Sun 8/22: Uncertain. Likely dry.

    posted: Aug 17 2010 at 9:55 pm

    [/weather/aug10] permanent link

    Sat, 14 Aug 2010

    Philadelphia Weekend Weather Update -Sat PM
    The latest NAM and GFS models show clouds and rain moving in for Sunday. The NAM is faster with the precipitation than the GFS, with showers as early as early afternoon, especially areas west of Philadelphia.

    Sat 8/14: Partly sunny, occasional periods of clouds. High 82.

    Sun 8/15: Cloudy. More humid Showers possible as early as early afternoon or early evening. High 85.

    posted: Aug 14 2010 at 12:46 pm

    [/weather/aug10] permanent link

    Philadelphia Weekend Weather Update -Sat AM
    It's uncertain how much cloudiness we'll see this weekend, as some areas,especially towards the shore have an easterly flow. The NAM model has some significant cloudiness for Sunday.

    Sat 8/14: Partly sunny, occasional periods of clouds. High 82.

    Sun 8/15: Mostly cloudy. More humid Showers possible in the evening. High 85.

    posted: Aug 14 2010 at 8:42 am

    [/weather/aug10] permanent link

    Philadelphia Weekend Weather Forecast -Fri PM
    It is now forecast that the high pressure system will build down from the northeast and allow less of an easterly flow and more of a south to southwesterly flow. This will improve our chances of a dry and partly to mostly sunny weekend.

    Sat 8/14: Mostly sunny, occasional clouds. High 81.

    Sun 8/15: Mostly sunny, some increase in clouds in the afternoon. Showers possible in the evening. High 85.

    posted: Aug 14 2010 at 8:31 am

    [/weather/aug10] permanent link

    Thu, 12 Aug 2010

    Philadelphia Weekend Weather Forecast -Thu AM
    A low confidence forecast as a number of surface weather features interact. High pressure will move off to the northeast. An easterly flow around the high off the Atlantic ocean will keep temps down and may result in cloudiness. A slow moving cold front will move towards us and the southwesterly flow ahead of the front will interact with the easterly flow from the high.

    The result will be considerable cloudiness and the chance of showers. Even that's not a certainty, since sometimes we can get sunny skies in this situation. Right now, the weekend looks mostly dry, although there is also uncertainty about the showers.

    Sat 8/14: Considerable cloudiness and warm. High 85. The possibility of a shower can't be ruled out. Low confidence forecast.

    Sun 8/15: Mostly cloudy with an increasing chance of showers as the day progresses. High 84.

    posted: Aug 12 2010 at 7:45 am

    [/weather/aug10] permanent link

    Wed, 11 Aug 2010

    Solar-Climate Forecast Discussion 8-11-10
    Back in June, it became clear to me that the cool climate trends of last summer were likely not to be repeated this summer. I took a neutral, wait and see approach to evaluate how much the recent solar minimum might affect temperature trends.

    The solar minimum truly ended in December of 2009, with a significant increase in sunspot activity that continues to ramp up during July and August 2010. While activity of this solar cycle (Solar Cycle 24) is expected to be lower than the previous one that peaked in April 2001, increases in solar flux, sunspots, solar wind and flares have already begun.

    Last winter, the minimal decrease in temperatures was likely the result of the greenhouse effect overriding the effects of lower solar irradiance. Indeed, I will be the first to say that I had expected a much colder winter considering that the solar irradiance had fallen so much with over 800 sunspot-free days.

    With such warm temperatures this summer, it's becoming clearer that the greenhouse effect and global warming is significant. Adding the effects of the global warming and the increasing solar cycle together seems to suggest that the coming years will see record breaking high temps and warm nightly minimum temperatures.

    Back in June, I wrote that "I see the year 2010 as a year that will provide clues" about the intensity of the greenhouse effect. The thing that has impressed me is how little the average temperatures were depressed by the lowered solar irradiance. Maybe it's a premature conclusion, but I think the evidence is in about the climate trends.

    I believe we will continue to see above normal temperatures for the balance of the summer and for the fall and winter of 2010. Additionally, I think the pattern will be drier with much less precipitation and areas may begin to develop drought conditions.

    posted: Aug 11 2010 at 6:51 pm

    [/weather/aug10] permanent link

    Fri, 06 Aug 2010

    Philadelphia Weekend Weather Forecast -Fri PM
    High pressure builds in for the weekend. Lower temps and humidity expected.

    Sat 8/7: Sunny and warm. High 86.

    Sun 8/8: Sunny and very warm. More humid. High 88.

    posted: Aug 06 2010 at 2:57 pm

    [/weather/aug10] 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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