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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, 19 Feb 2010
Philly Winter Weather Outlook- Fri PM
The the upper trough associated with a large dome of cold high pressure that has been with us since the end of January will maintain its hold through the weekend. High temps will be in the low 40s, the normal high is 45, yet it will feel warm relative to the past cold. An upper air disturbance will cause some cloudiness on Saturday.
The low pressure system expected to affect us on Monday into Monday night will likely be a rain event during the daytime hours, perhaps mixing with some wet snow during the night time hours. A more interesting pattern is suggested by the GFS model for later in the week, where another deep storm will wind up along the northeast US. A blocking pattern and closed low may result in a rain-->snow storm the end of the week. Too early to be sure, but it looks interesting.
Sat 2/20: Considerable cloudiness. High 40
Sun 2/21: Partly cloudy/sunny and cold. High 42.

Solar Climate Discussion (Updated 2/6): This past summer (see post), I suggested that this upcoming winter would be unusually cold due to a prolonged lull in solar activity. The sun is beginning to come out of a solar minimum, and there has finally been the long expected increase in solar activity signaling the real beginning of Solar Cycle 24. There are several sunspot areas, but the solar flux still hasn't taken off. It's still early in the cycle. Total Solar Irradiance continues to be about 1 watt/m2 lower than it was during the peak of the last solar cycle, Solar Cycle 23, in April 2000.
As of early February, it looks like the solar cycle is providing the predicted colder than normal temperatures and the El Nino is providing the potent moisture rich southern jet stream. Continue to expect colder than normal temperatures into the spring.

posted: Feb 19 2010 at 7:31 pm

[/weather/feb10] 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, 19 Feb 2010 Philly Winter Weather Outlook- Fri PM The the upper trough associated with a large dome of cold high pressure that has been with us since the end of January will maintain its hold through the weekend. High temps will be in the low 40s, the normal high is 45, yet it will feel warm relative to the past cold. An upper air disturbance will cause some cloudiness on Saturday. The low pressure system expected to affect us on Monday into Monday night will likely be a rain event during the daytime hours, perhaps mixing with some wet snow during the night time hours. A more interesting pattern is suggested by the GFS model for later in the week, where another deep storm will wind up along the northeast US. A blocking pattern and closed low may result in a rain-->snow storm the end of the week. Too early to be sure, but it looks interesting. Sat 2/20: Considerable cloudiness. High 40 Sun 2/21: Partly cloudy/sunny and cold. High 42. Solar Climate Discussion (Updated 2/6): This past summer (see post), I suggested that this upcoming winter would be unusually cold due to a prolonged lull in solar activity. The sun is beginning to come out of a solar minimum, and there has finally been the long expected increase in solar activity signaling the real beginning of Solar Cycle 24. There are several sunspot areas, but the solar flux still hasn't taken off. It's still early in the cycle. Total Solar Irradiance continues to be about 1 watt/m2 lower than it was during the peak of the last solar cycle, Solar Cycle 23, in April 2000. As of early February, it looks like the solar cycle is providing the predicted colder than normal temperatures and the El Nino is providing the potent moisture rich southern jet stream. Continue to expect colder than normal temperatures into the spring. posted: Feb 19 2010 at 7:31 pm [/weather/feb10] 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.