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Miscellaneous
Fri, 24 Aug 2012
Philly Weekend Weather Update -Fri PM
The latest GFS brings a greater chance of showers into Philadelphia on Saturday.
A weak and poorly defined weather pattern will influence our weather over the weekend. As high pressure moves away tonight, a very weak low pressure system is predicted to develop over southern Delaware and may try to move northward, although the NAM model suppresses precipitation south of Philadelphia. With such a weak pattern and a nearby low expected to form, this forecast could easily change. Confidence in the forecast for this weekend is below average.
Sat 8/25: Sunshine through high cloudiness early, becoming cloudy with a chance of showers in the afternoon. High 81.
Sun 8/26: A mix of sun and clouds. High 84.
posted: Aug 24 2012 at 7:44 pm
[/weather/aug12] permanent link
Philly Weekend Weather Forecast -Fri PM
A weak and poorly defined weather pattern will influence our weather over the weekend. As high pressure moves away tonight, a very weak low pressure system is predicted to develop over southern Delaware and may try to move northward, although the GFS model suppresses precipitation south of Philadelphia. With such a weak pattern and a nearby low expected to form, this forecast could easily change. Confidence in the forecast for this weekend is below average.
Sat 8/25: Sunshine through high cloudiness, possibly becoming cloudy late afternoon. High 83.
Sun 8/26: A mix of sun and clouds. High 84.
posted: Aug 24 2012 at 5:53 pm
[/weather/aug12] permanent link
Fri, 17 Aug 2012Philly Weekend Weather Update -Fri PM
A highly amplified upper trough is expected to develop in the middle of the country, but its progression eastward will be slow.
The surface cold front is expected to slowly move through tonight (Friday) into Saturday. The latest GFS has some sun poking through by 11AM
Sat 8/18: Cloudy with showers and thunderstorms ending before daybreak. Gradual clearing with some sun by 11AM.
High 82.
Sun 8/19: A mix of sun and clouds. High 79.
posted: Aug 17 2012 at 8:31 pm
[/weather/aug12] permanent link
Philly Weekend Weather Forecast -Fri AM
A highly amplified upper trough is expected to develop in the middle of the country, but its progression eastward will be slow.
The Its surface cold front is expected to slowly move through tonight (Friday) into Saturday. The GFS has the front stalling over eastern NJ on Saturday, while the NAM has the front stalling closer to Philadlephia. As a result, there are uncertainties with the forecast for Saturday, with the NAM having significant showers here in Philadelphia, while the GFS has signficant showers closer to the NJ shore and Philadelphia westward to be in a drier cooler flow.
A tough call, but I tend to favor the NAM when it comes to the position of fronts, so at this point, I'm leaning to a wetter forecast for Philadelphia (and the Jersey shore) on Saturday. (If the GFS verifies, things dry out in Philadelpha a bit, but the shore remains wet.) Lower than usual confidence forecast. Will update tonight.
Sat 8/18: Cloudy with showers and thunderstorms during the day, tapering towards evening.
High 77.
Sun 8/19: A mix of sun and clouds. High 79.
posted: Aug 17 2012 at 8:11 am
[/weather/aug12] permanent link
Fri, 10 Aug 2012Philly Weekend Weather Forecast -Fri PM
Circulation around an upper closed low centered around the Great Lakes will bring unsettled conditions for Saturday and possibly Sunday. The weather models often have trouble with closed lows-- today is a good example, where the hyped calamity of severe weather did not occur. Saturday's weather will continue to be influenced by this upper circulation as areas of vorticity revolve around the upper low. Location and timing of additional showers and thunderstorms will be difficult to predict-- any sunshine we get is capable of triggering thunderstorms. Things are expected to settle down on Sunday, but the effects of this upper low may still affect us.
Sat 8/11: A mix of sun and clouds. Widely scattered thunderstorms are possible anytime during the day, but most of the day should be rain free. High 88.
Sun 8/12: Mostly sunny in the morning, some instability cloudiness in the afternoon. High 87.
posted: Aug 10 2012 at 9:45 pm
[/weather/aug12] permanent link
Fri, 03 Aug 2012Philly Weekend Weather Forecast -Fri PM
A hot humid southerly flow will bring typical August weather to out area on Saturday. An approaching cold front will bring increasing clouds Sunday afternoon and an increasing chance of showers late Sunday.
Sat 8/4: Sunny, hot and humid. Small chance of widely scattered thunderstorms possible late afternoon. High 94.
Sun 8/5: Mostly sunny in the morning, increasing clouds in the afternoon. Good chance of thunderstorms late afternoon, especially west of Philadelphia. High 89.
posted: Aug 03 2012 at 8:47 pm
[/weather/aug12] 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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