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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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Sun, 10 May 2009
Philadelphia Weather and Climate Discussion
Despite the short heat wave of two weeks ago, this spring continues to be on the cool side. Solar activity continues to be extremely low and the sunspot cycle Number 24 still has not taken off yet. My climate outlook continues to be a cool spring and cool summer on average.
That said, there are some signs that the sun might be finally waking up. Recently there have been a two areas of solar flares that had been all but absent for most of the past year. Once the sunspot cycle begins in earnest, the increase in solar wind will reduce the level of high energy cosmic rays that tend to seed our atmosphere for cloud formation. So with the increase in irradiance of the sun and the decrease in cosmic ray associated cloud formation, we can expect warming trends with the next solar cycle. (There are scientists who think the next sunspot cycle level will be very supressed, giving a very cool climate for many more years. It remains to be seen.) For more information, check out The Solar Prediction Center and a rather interesting blog that I like to visit called The Dalton Minimum Returns
I know this topic seems to be far removed from my usual Philadelphia Weather forecast, but in recent years, I've been fascinated by the science and speculation that solar activity plays a greater role in climate trends than previously thought.
Getting back to weather: As for the upcoming weekend, things aren't so clean cut either. A general upper level cyclonic cool flow will try to re-establish itself, with several cold front passages. The timing of these fronts is not certain at this time, but a major front looks like it will cross our area sometime on Sunday. Stay tuned.
See microblog updates and commments about the current weather on Twitter.com Follow me as: theweatherguy

posted: May 10 2009 at 9:21 pm

[/solar] 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	Sun, 10 May 2009 Philadelphia Weather and Climate Discussion Despite the short heat wave of two weeks ago, this spring continues to be on the cool side. Solar activity continues to be extremely low and the sunspot cycle Number 24 still has not taken off yet. My climate outlook continues to be a cool spring and cool summer on average. That said, there are some signs that the sun might be finally waking up. Recently there have been a two areas of solar flares that had been all but absent for most of the past year. Once the sunspot cycle begins in earnest, the increase in solar wind will reduce the level of high energy cosmic rays that tend to seed our atmosphere for cloud formation. So with the increase in irradiance of the sun and the decrease in cosmic ray associated cloud formation, we can expect warming trends with the next solar cycle. (There are scientists who think the next sunspot cycle level will be very supressed, giving a very cool climate for many more years. It remains to be seen.) For more information, check out The Solar Prediction Center and a rather interesting blog that I like to visit called The Dalton Minimum Returns I know this topic seems to be far removed from my usual Philadelphia Weather forecast, but in recent years, I've been fascinated by the science and speculation that solar activity plays a greater role in climate trends than previously thought. Getting back to weather: As for the upcoming weekend, things aren't so clean cut either. A general upper level cyclonic cool flow will try to re-establish itself, with several cold front passages. The timing of these fronts is not certain at this time, but a major front looks like it will cross our area sometime on Sunday. Stay tuned. See microblog updates and commments about the current weather on Twitter.com Follow me as: theweatherguy posted: May 10 2009 at 9:21 pm [/solar] 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.