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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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Mon, 21 Jan 2008
Update - Monday PM [2]
The latest NAM has less precip falling tomorrow, between 1 and 7 PM. QPF values 0.15 inches water. Wet snow to mostly rain. Little accumulation in the city and immediate suburbs.

posted: Jan 21 2008 at 10:09 pm

[/weather/jan08] permanent link

Wet snow for Tues?- Monday PM
As high pressure moves off Tuesday morning, low pressure approaches from the west and blossoms as it nears the coastline. Precip starts Tuesday afternoon into the evening. It will likely start as snow, but will also likely not accumulate much.
Temperatures will be critical with this storm. Upper air temperatures support snow for the beginning of the storm, but surface temperatures will be above freezing and are expected to rise towards evening, both on the ground and at 2000 feet. So any snow will mix with and likely become mostly rain.
So, once again, we'll be in snow--> wet snow/rain line situation, with areas to the north and west possibly getting some accumulation. Current QPF values from the NAM and GFS are about 0.25 inches water. If all snow, this would be 2-3 inches, but a 1 inch slushy coating or less is what to expect.

posted: Jan 21 2008 at 7:30 pm

[/weather/jan08] 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	Mon, 21 Jan 2008 Update - Monday PM [2] The latest NAM has less precip falling tomorrow, between 1 and 7 PM. QPF values 0.15 inches water. Wet snow to mostly rain. Little accumulation in the city and immediate suburbs. posted: Jan 21 2008 at 10:09 pm [/weather/jan08] permanent link Wet snow for Tues?- Monday PM As high pressure moves off Tuesday morning, low pressure approaches from the west and blossoms as it nears the coastline. Precip starts Tuesday afternoon into the evening. It will likely start as snow, but will also likely not accumulate much. Temperatures will be critical with this storm. Upper air temperatures support snow for the beginning of the storm, but surface temperatures will be above freezing and are expected to rise towards evening, both on the ground and at 2000 feet. So any snow will mix with and likely become mostly rain. So, once again, we'll be in snow--> wet snow/rain line situation, with areas to the north and west possibly getting some accumulation. Current QPF values from the NAM and GFS are about 0.25 inches water. If all snow, this would be 2-3 inches, but a 1 inch slushy coating or less is what to expect. posted: Jan 21 2008 at 7:30 pm [/weather/jan08] 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.