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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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Fri, 15 May 2009
Philadelphia Weekend Weather Forecast - Fri PM
An approaching cold front on Saturday afternoon will bring rain through Saturday night into the first half of Sunday. It seems possible that the models might be over-extending the rain into mid day Sunday, so I think there is uncertainty about when the rain will stop.
Sat 5/16: Chance of a brief light shower early, then cloudy with some breaks in the overcast skies possible in the morning, then cloudy by afternoon. Showers and thunderstorms move in, most likely between 3 and 5 PM and continues through the night. High 77
Sun 5/17: Cloudy with showers and thunderstorms during most of the morning, ending about noon. Some clearing possible during the mid to late afternoon. Windy and cool. High 60.
There's been the first increase in solar flux in over a year with the recent development of some active regions of sun producing the first sunspot in awhile. The solar flux has increased just a bit. Solar Cycle 24 is probably starting now. Solar activity remains low enough to continue the forecast of cooler than normal weather overall.
See microblog updates and commments about the current weather on Twitter.com Follow me as: theweatherguy

posted: May 15 2009 at 6:42 pm

[/weather/may09] permanent link

Philadelphia Weekend Weather Forecast - Fri AM
The difficult to pin down pattern of frontal passages over the weekend remains a bit elusive, but I'll try to give a forecast.
The front that moved through last night will be far enough south to keep much of Friday and and most of Saturday without rain. However, any sun today (Friday) could cause enough stability to set off a thunderstorm. A cold front will move through late Saturday bringing showers and thunderstorms. Still some uncertainty with details with this forecast.
Sat 5/16: Cloudy but with some breaks in the overcast skies possible in the morning. Chance of showers and thunderstorms by afternoon. Exact timing uncertain, but increasingly probable late afternoon. High 76
Sun 5/17: Cloudy with showers and thunderstorms ending during most of the morning. Some clearing possible during the mid to late afternoon. Cool. High 64.
There's been the first increase in solar flux in over a year with the recent development of some active regions of sun producing the first sunspot in awhile. The solar flux has increased just a bit. Solar Cycle 24 is probably starting now. Solar activity remains low enough to continue the forecast of cooler than normal weather overall.
See microblog updates and commments about the current weather on Twitter.com Follow me as: theweatherguy

posted: May 15 2009 at 6:06 am

[/weather/may09] 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	Fri, 15 May 2009 Philadelphia Weekend Weather Forecast - Fri PM An approaching cold front on Saturday afternoon will bring rain through Saturday night into the first half of Sunday. It seems possible that the models might be over-extending the rain into mid day Sunday, so I think there is uncertainty about when the rain will stop. Sat 5/16: Chance of a brief light shower early, then cloudy with some breaks in the overcast skies possible in the morning, then cloudy by afternoon. Showers and thunderstorms move in, most likely between 3 and 5 PM and continues through the night. High 77 Sun 5/17: Cloudy with showers and thunderstorms during most of the morning, ending about noon. Some clearing possible during the mid to late afternoon. Windy and cool. High 60. There's been the first increase in solar flux in over a year with the recent development of some active regions of sun producing the first sunspot in awhile. The solar flux has increased just a bit. Solar Cycle 24 is probably starting now. Solar activity remains low enough to continue the forecast of cooler than normal weather overall. See microblog updates and commments about the current weather on Twitter.com Follow me as: theweatherguy posted: May 15 2009 at 6:42 pm [/weather/may09] permanent link Philadelphia Weekend Weather Forecast - Fri AM The difficult to pin down pattern of frontal passages over the weekend remains a bit elusive, but I'll try to give a forecast. The front that moved through last night will be far enough south to keep much of Friday and and most of Saturday without rain. However, any sun today (Friday) could cause enough stability to set off a thunderstorm. A cold front will move through late Saturday bringing showers and thunderstorms. Still some uncertainty with details with this forecast. Sat 5/16: Cloudy but with some breaks in the overcast skies possible in the morning. Chance of showers and thunderstorms by afternoon. Exact timing uncertain, but increasingly probable late afternoon. High 76 Sun 5/17: Cloudy with showers and thunderstorms ending during most of the morning. Some clearing possible during the mid to late afternoon. Cool. High 64. There's been the first increase in solar flux in over a year with the recent development of some active regions of sun producing the first sunspot in awhile. The solar flux has increased just a bit. Solar Cycle 24 is probably starting now. Solar activity remains low enough to continue the forecast of cooler than normal weather overall. See microblog updates and commments about the current weather on Twitter.com Follow me as: theweatherguy posted: May 15 2009 at 6:06 am [/weather/may09] 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.