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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, 29 Jan 2010
Philadelphia Weekend Weather Update-Fri PM [2]
The latest GFS and model trends suggest an inch or so of snow late afternoon on Saturday for the gridpoint of PHL airport.
So things are changing.

posted: Jan 29 2010 at 11:51 pm

[/weather/jan10] permanent link

Philadelphia Weekend Weather Update-Fri PM
The latest NAM and model trends suggest a coating of snow possible late afternoon or early evening. This for areas near gridpoints around PHL and PNE airports.
The model trend has been towards some light snow possible.

posted: Jan 29 2010 at 9:49 pm

[/weather/jan10] permanent link

Philadelphia Weekend Weather Forecast- Fri PM
A dome of cold, high pressure will suppress the southern stream jet to our south, along with any low pressure systems developing along this boundary. Low pressure moving from west to east will track just to the south of us on Sat. The high-pressure dome will prevent the low reaching from us. Although, the latest GFS model has some light precipitation reaching Philadelphia late afternoon on Saturday. A light coating of snow is possible from Philadelphia on south, but northwest and west suburbs will likely not receive anything. This is the best example of the expression "it's too cold to snow".
Sat 1/30: Cloudy and cold. A light coating of snow possible late afternoon areas to the south. Breezy. High 28
Sun 1/31: Mostly sunny and cold. High 29.
Solar Climate Discussion Updated 1/27: This past summer (see post), I suggested that this upcoming winter would be unusually cold due to a lull in solar activity. The sun remains at a prolonged minimum sunspot activity, although there has finally been a long expected uptick in activity over the past two months indicating the beginning of Solar Cycle 24. Total Solar Irradiance is about 1 watt/m2 lower than it was during the peak of the last solar cycle in April 2000.
That said, there is an uptick in solar wind values and solar flux. Looking at the long range GFS, things aren't looking as cold as I had expected for early February. Not sure if the postulated solar effect is minimal or whether the El Nino effect is trumping any solar effect. I guess we'll see as the winter continues.

posted: Jan 29 2010 at 4:41 pm

[/weather/jan10] 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, 29 Jan 2010 Philadelphia Weekend Weather Update-Fri PM [2] The latest GFS and model trends suggest an inch or so of snow late afternoon on Saturday for the gridpoint of PHL airport. So things are changing. posted: Jan 29 2010 at 11:51 pm [/weather/jan10] permanent link Philadelphia Weekend Weather Update-Fri PM The latest NAM and model trends suggest a coating of snow possible late afternoon or early evening. This for areas near gridpoints around PHL and PNE airports. The model trend has been towards some light snow possible. posted: Jan 29 2010 at 9:49 pm [/weather/jan10] permanent link Philadelphia Weekend Weather Forecast- Fri PM A dome of cold, high pressure will suppress the southern stream jet to our south, along with any low pressure systems developing along this boundary. Low pressure moving from west to east will track just to the south of us on Sat. The high-pressure dome will prevent the low reaching from us. Although, the latest GFS model has some light precipitation reaching Philadelphia late afternoon on Saturday. A light coating of snow is possible from Philadelphia on south, but northwest and west suburbs will likely not receive anything. This is the best example of the expression "it's too cold to snow". Sat 1/30: Cloudy and cold. A light coating of snow possible late afternoon areas to the south. Breezy. High 28 Sun 1/31: Mostly sunny and cold. High 29. Solar Climate Discussion Updated 1/27: This past summer (see post), I suggested that this upcoming winter would be unusually cold due to a lull in solar activity. The sun remains at a prolonged minimum sunspot activity, although there has finally been a long expected uptick in activity over the past two months indicating the beginning of Solar Cycle 24. Total Solar Irradiance is about 1 watt/m2 lower than it was during the peak of the last solar cycle in April 2000. That said, there is an uptick in solar wind values and solar flux. Looking at the long range GFS, things aren't looking as cold as I had expected for early February. Not sure if the postulated solar effect is minimal or whether the El Nino effect is trumping any solar effect. I guess we'll see as the winter continues. posted: Jan 29 2010 at 4:41 pm [/weather/jan10] 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.