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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, 14 Jul 2009
Philadelphia Weekend Weather Outlook- Tues PM
A frontal boundary ahead of an amplified upper cyclonic flow will pass through our area on Saturday. Low pressure is expected to form on this boundary and may give us heavy rain for Saturday afternoon. This unusual amplified upper air cyclonic flow (something usually seen in winter) may produce instability clouds for Sunday due to the cool air aloft. A shower can't be ruled out.

Sat 7/18: tentative- Early sun gives way to clouds and showers and thunderstorms by late morning. Some of the rain may be heavy. It will be humid. High 80.

Sun 7/19: tentative- Sunny in the morning, partly cloudy in the afternoon. Chance of a widely scattered shower. High 79.

Solar- Climate Comment- Updated 07-14-09: The visible sun is again spotless. STEREO satellite images of the sun show no sunspots on the side of the sun rotating into view. Solar activity remains relatively quiet and solar flux remains low, at 67. We will remain in an climatically cool weather pattern for the summer, as solar flux and total solar irradiance are at extreme lows due to an anomalous nadir in the the sunspot cycle. Continue to expect a cooler than normal summer on average and this pattern will likely extend well into the fall and winter. We may have a record cold fall and winter this year.
Follow me on Twitter as @theweatherguy for quick updates and weather observations.

posted: Jul 14 2009 at 9:55 pm

[/weather/jul09] 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.

The weatherguy.net home page has been visited times since October 2003.

theweatherguy's website
		Philadelphia Weekend Weather and Storm Forecasts
Glenn F. Schreiber DMD and Glenn Schreiber is theweatherguy writing about Philadelphia Weather [radar] [surface map] [disclaimer]
	About this blog theweatherguy's website, "Thoughts and comments on Philadelphia Weather and Daily Life." Glenn F Schreiber aka "theweatherguy" Photos Weather Definitions Copy link for RSS feed Links These are a few of my favorite links. National Weather Service Official Forecasts Meteorology Glossary Archives Weather Archives: 13: Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov Dec 12: Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov Dec 11: Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov Dec 10: Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov Dec 09: Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov Dec 08: Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov Dec 07: Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov Dec 06: Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov Dec 05: Apr May Jun July Aug Sept Oct Nov Dec Commentary: Miscellaneous Find	Tue, 14 Jul 2009 Philadelphia Weekend Weather Outlook- Tues PM A frontal boundary ahead of an amplified upper cyclonic flow will pass through our area on Saturday. Low pressure is expected to form on this boundary and may give us heavy rain for Saturday afternoon. This unusual amplified upper air cyclonic flow (something usually seen in winter) may produce instability clouds for Sunday due to the cool air aloft. A shower can't be ruled out. Sat 7/18: tentative- Early sun gives way to clouds and showers and thunderstorms by late morning. Some of the rain may be heavy. It will be humid. High 80. Sun 7/19: tentative- Sunny in the morning, partly cloudy in the afternoon. Chance of a widely scattered shower. High 79. Solar- Climate Comment- Updated 07-14-09: The visible sun is again spotless. STEREO satellite images of the sun show no sunspots on the side of the sun rotating into view. Solar activity remains relatively quiet and solar flux remains low, at 67. We will remain in an climatically cool weather pattern for the summer, as solar flux and total solar irradiance are at extreme lows due to an anomalous nadir in the the sunspot cycle. Continue to expect a cooler than normal summer on average and this pattern will likely extend well into the fall and winter. We may have a record cold fall and winter this year. Follow me on Twitter as @theweatherguy for quick updates and weather observations. posted: Jul 14 2009 at 9:55 pm [/weather/jul09] 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. The weatherguy.net home page has been visited times since October 2003.