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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, 30 Nov 2007
Weekend Weather -Difficult driving on Sunday AM- Fri PM update
What a difference a year makes! This time last year, we had incredibly warm temperatures for November and December...it didn't get cold until the third week in December.
For this weekend, a low pressure system will move to the Great Lakes while warm air aloft causes precipitation that will fall mostly as ice pellets (sleet) and freezing rain during the morning on Sunday. Significant icing is likely for areas near Philadelphia and especially north and west of the city. The freezing rain and ice pellets will change to all rain during the afternoon, but it may still be slippery. Very little snow is expected here, with warm air in the upper areas of the atmosphere.
Updated Fri 10 PM:
Latest NAM model continues with sleet and ice pellets through noon on Sunday. Heavier rains during Sunday evening as temperatures rise above freezing.
Sat 12/1: Mostly sunny and cold. Some high cloudiness increases in the afternoon. High 40.
Sun 12/2 : Sleet, ice pellets early, changing to freezing rain by late morning, then rain during the afternoon. Icey conditions expected. High 35. Secondary low pressure during the evening needs to be watched for possible change back to snow.

posted: Nov 30 2007 at 10:17 pm

[/weather/nov07] permanent link

Weekend Weather -Difficult driving on Sunday AM- Fri PM update
What a difference a year makes! This time last year, we had incredibly warm temperatures for November and December...it didn't get cold until the third week in December.
For this weekend, a low pressure system will move to the Great Lakes while warm air aloft causes precipitation that will fall mostly as ice pellets (sleet) and freezing rain during the morning on Sunday. Significant icing is likely for areas near Philadelphia and especially north and west of the city. The freezing rain and ice pellets will change to all rain during the afternoon, but it may still be slippery. Very little snow is expected here, with warm air in the upper areas of the atmosphere.
Right now, the models are not predicting high amounts of water falling (QPF values), which can go both ways...a warm, heavy rain can wash away any ice buildup, while light precip may cause the ice to linger.
A secondary low is expected to form along the coast Sunday night and the models have the precip ending by Monday morning. We need to watch this, as secondary lows are difficult to forecast with high precision.
Sat 12/1: Mostly sunny and cold. Some high cloudiness increases in the afternoon. High 40.
Sun 12/2 : Sleet, ice pellets early, changing to freezing rain by late morning, then rain during the afternoon. Icey conditions expected. High 35. Secondary low pressure during the evening needs to be watched for possible change back to snow.

posted: Nov 30 2007 at 5:47 pm

[/weather/nov07] 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, 30 Nov 2007 Weekend Weather -Difficult driving on Sunday AM- Fri PM update What a difference a year makes! This time last year, we had incredibly warm temperatures for November and December...it didn't get cold until the third week in December. For this weekend, a low pressure system will move to the Great Lakes while warm air aloft causes precipitation that will fall mostly as ice pellets (sleet) and freezing rain during the morning on Sunday. Significant icing is likely for areas near Philadelphia and especially north and west of the city. The freezing rain and ice pellets will change to all rain during the afternoon, but it may still be slippery. Very little snow is expected here, with warm air in the upper areas of the atmosphere. Updated Fri 10 PM: Latest NAM model continues with sleet and ice pellets through noon on Sunday. Heavier rains during Sunday evening as temperatures rise above freezing. Sat 12/1: Mostly sunny and cold. Some high cloudiness increases in the afternoon. High 40. Sun 12/2 : Sleet, ice pellets early, changing to freezing rain by late morning, then rain during the afternoon. Icey conditions expected. High 35. Secondary low pressure during the evening needs to be watched for possible change back to snow. posted: Nov 30 2007 at 10:17 pm [/weather/nov07] permanent link Weekend Weather -Difficult driving on Sunday AM- Fri PM update What a difference a year makes! This time last year, we had incredibly warm temperatures for November and December...it didn't get cold until the third week in December. For this weekend, a low pressure system will move to the Great Lakes while warm air aloft causes precipitation that will fall mostly as ice pellets (sleet) and freezing rain during the morning on Sunday. Significant icing is likely for areas near Philadelphia and especially north and west of the city. The freezing rain and ice pellets will change to all rain during the afternoon, but it may still be slippery. Very little snow is expected here, with warm air in the upper areas of the atmosphere. Right now, the models are not predicting high amounts of water falling (QPF values), which can go both ways...a warm, heavy rain can wash away any ice buildup, while light precip may cause the ice to linger. A secondary low is expected to form along the coast Sunday night and the models have the precip ending by Monday morning. We need to watch this, as secondary lows are difficult to forecast with high precision. Sat 12/1: Mostly sunny and cold. Some high cloudiness increases in the afternoon. High 40. Sun 12/2 : Sleet, ice pellets early, changing to freezing rain by late morning, then rain during the afternoon. Icey conditions expected. High 35. Secondary low pressure during the evening needs to be watched for possible change back to snow. posted: Nov 30 2007 at 5:47 pm [/weather/nov07] 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.