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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
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Sun, 31 Oct 2010
Philadelphia Week Weather Outlook- Sunday
There has been an interesting pattern change developing. Last week, the GFS model had shown a rather uninteresting pattern for this week, with continued mild weather. Over recent days, the GFS has shown a significant pattern change as increasingly cold weather moving in for us both early in the week and especially by next weekend. In fact, only the recent model runs have shown temps to hit freezing for tonight. By next weekend, the weather map is looking incredibly winter-like.
For the period Thursday through Saturday and possibly Sunday, the GFS carves out an extremely amplified upper pattern, spawning deep coastal low pressure development for Thursday and suggesting that the upper low might close off for the weekend. Either way, it looks like we're headed for windy and wintery cold weather for the end of this week. We might even see some snow showers! Stay tuned.
Climate Forecast Discussion: Solar cycle 24 continues to ramp up. Total solar irradiance has increased. Add this increased thermal background to the greenhouse warming and I expect to see much milder temps this fall and winter. Additionally, the increased energy available for low pressure development will likely result in some additional monster storms. Rain or ice storms are more likely than snow for us.

posted: Oct 31 2010 at 6:05 pm

[/weather/oct10] permanent link
Sat, 30 Oct 2010
Philadelphia Weekend Weather Forecast -Sat AM
High pressure will control our weather this weekend. While the temps will be much cooler than past days, the actual temperatures are closer to what's average for this time of year.
The GFS shows an upper air disturbances bringing some instability cloudiness for Saturday afternoon.
Sat 10/30: Sunny breezy and somewhat cool. Some mid-level cloudiness in the afternoon. High 59.
Sun 10/31: Sunny and cool. High 57.
Climate Forecast Discussion: Solar cycle 24 continues to ramp up. Total solar irradiance has increased. Add this increased thermal background to the greenhouse warming and I expect to see much milder temps this fall and winter. Additionally, the increased energy available for low pressure development will likely result in some additional monster storms. Rain or ice storms are more likely than snow for us.

posted: Oct 30 2010 at 10:40 am

[/weather/oct10] permanent link
Wed, 27 Oct 2010
Philadelphia Weekend Weather Forecast -Wed PM
The extremely deep low pressure system affecting the Midwest will shear off to the north and west, as it drags a cold front through late Thursday.
A similar scenario to last weekend, as a cold snap Friday into Saturday is expected to moderate quickly as the jet stream relaxes to our north on Sunday. Some unknowns for the weekend-- there's the possibility of upper air disturbances bringing some instability cloudiness for Saturday. Additionally, as warm air returns on Sunday, some mid level cloudiness is possible. Will have to wait until Friday for these upper air features to clarify.
Sat 10/30: Sunny breezy and cooler. Some cloudiness possible in the afternoon. High 58.
Sun 10/31: Mostly sunny and a bit milder. Some clouds move in during the late afternoon. High 62.
Climate Forecast Discussion: Solar cycle 24 continues to ramp up. Total solar irradiance has increased. Add this increased thermal background to the greenhouse warming and I expect to see much milder temps this fall and winter. Additionally, the increased energy available for low pressure development will likely result in some additional monster storms. Rain or ice storms are more likely than snow for us.

posted: Oct 27 2010 at 8:50 pm

[/weather/oct10] permanent link
Thu, 21 Oct 2010
Philadelphia Weekend Weather Forecast -Thurs PM
High pressure will drift over us on Saturday, as the brief cold spell for Friday fades with a change to a southwesterly flow. A developing warm front that will shear to our north will bring considerable mid level cloudiness on Sunday. The models keep us dry.
Sat 10/23: Sunny, cold early becoming mild during the afternoon. High 65.
Sun 10/24: Considerable mid-level cloudiness but mild. High 69.

posted: Oct 21 2010 at 9:53 pm

[/weather/oct10] permanent link

posted: Oct 21 2010 at 9:52 pm

[/weather/oct10] permanent link
Thu, 14 Oct 2010
Philadelphia Weekend Weather Outlook -Thur AM
The rains coming today will be less intense than previously expected. The deep low intensification is now forecast be less intense and will move away sooner than had previously been forecast.
Sat 10/16: Partly sunny, windy and cool. Significant periods of cloudiness in the afternoon. High 56.
Sun 10/17: Partly sunny, still breezy and milder. High 64 .

posted: Oct 14 2010 at 8:12 am

[/weather/oct10] permanent link
Tue, 12 Oct 2010
Philadelphia Weekend Weather Outlook -Tues PM
Deep low pressure as a result of explosive cyclogenesis is expected to occur around the mid-Atlantic area Thursday through Friday. The resultant Nor'easter will cause rain from Thurs thru Fri. The deep low will vertically stack over New England on Saturday and will slowly exit, causing windy conditions and instability cloudiness for the the beginning of the weekend.
Sat 10/16: Partial clearing, very windy and cool. Significant cloudiness in the afternoon with a slight chance of a light scattered shower. High 56.
Sun 10/17: Partly sunny, still breezy and milder. High 64 .

posted: Oct 12 2010 at 8:04 pm

[/weather/oct10] permanent link
Fri, 08 Oct 2010
Philadelphia Weekend Weather Forecast -Fri AM
A beautiful weekend coming up. Large area of high pressure dominates. Meteorologically boring, but nonetheless, beautiful! Enjoy!
Sat 10/9: Sunny and pleasant! High 73.
Sun 10/10: Sunny and pleasant! High 75.

posted: Oct 08 2010 at 9:32 am

[/weather/oct10] permanent link
Sat, 02 Oct 2010
Philadelphia Weekend Weather Update -Sat PM
A northeasterly surface flow in combination with an upper trough/developing closed low will bring unsettled conditions for Sunday afternoon through the beginning of the week. At the surface, an inverted coastal trough will bring moisture up along the coast Sunday afternoon and will combine with the closed upper level low.
Tonight's NAM model brings rain into Philadelphia about 2 PM Sunday. This afternoon's GFS still holds off the precip until evening. I'm leaning towards the NAM
Sun 10/3: Some sun very early, then cloudy. Showers likely mid to late afternoon. High 63.

posted: Oct 02 2010 at 10:41 pm

[/weather/oct10] permanent link

Philadelphia Weekend Weather Forecast -Sat AM
High pressure will give us beautiful fall weather today. A northeasterly surface flow in combination with an upper trough/developing closed low will bring unsettled conditions for late Sunday through the beginning of the week. At the surface, an inverted coastal trough will bring moisture up along the coast late Sunday and will combine with the closed upper level low.
Sat 10/2: Sunny in the morning, scattered fair weather clouds in the afternoon. High 65.
Sun 10/3: Some sun very early, then cloudy. There's the possibility of showers by mid or late afternoon. High 63.

posted: Oct 02 2010 at 8:37 am

[/weather/oct10] permanent link
Fri, 01 Oct 2010
Philadelphia Weekend Weather Update -Fri AM
The heavy rains are moving away this morning.
A fall-like feeling for the weekend, as cool high pressure builds in north, giving us a northeasterly flow. An upper air disturbance and upper trough will likely cause instability cloudiness to develop; it's unclear how much cloudiness we will have, but it's appearing right now that there may be considerable cloudiness for the weekend. But dry and cool conditions expected.
Sat 10/2: Partly sunny in the morning, considerable cloudiness in the afternoon. High 65.
Sun 10/3: Considerable cloudiness and cool. High 63.

posted: Oct 01 2010 at 5:54 am

[/weather/oct10] 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, 31 Oct 2010 Philadelphia Week Weather Outlook- Sunday There has been an interesting pattern change developing. Last week, the GFS model had shown a rather uninteresting pattern for this week, with continued mild weather. Over recent days, the GFS has shown a significant pattern change as increasingly cold weather moving in for us both early in the week and especially by next weekend. In fact, only the recent model runs have shown temps to hit freezing for tonight. By next weekend, the weather map is looking incredibly winter-like. For the period Thursday through Saturday and possibly Sunday, the GFS carves out an extremely amplified upper pattern, spawning deep coastal low pressure development for Thursday and suggesting that the upper low might close off for the weekend. Either way, it looks like we're headed for windy and wintery cold weather for the end of this week. We might even see some snow showers! Stay tuned. Climate Forecast Discussion: Solar cycle 24 continues to ramp up. Total solar irradiance has increased. Add this increased thermal background to the greenhouse warming and I expect to see much milder temps this fall and winter. Additionally, the increased energy available for low pressure development will likely result in some additional monster storms. Rain or ice storms are more likely than snow for us. posted: Oct 31 2010 at 6:05 pm [/weather/oct10] permanent link Sat, 30 Oct 2010 Philadelphia Weekend Weather Forecast -Sat AM High pressure will control our weather this weekend. While the temps will be much cooler than past days, the actual temperatures are closer to what's average for this time of year. The GFS shows an upper air disturbances bringing some instability cloudiness for Saturday afternoon. Sat 10/30: Sunny breezy and somewhat cool. Some mid-level cloudiness in the afternoon. High 59. Sun 10/31: Sunny and cool. High 57. Climate Forecast Discussion: Solar cycle 24 continues to ramp up. Total solar irradiance has increased. Add this increased thermal background to the greenhouse warming and I expect to see much milder temps this fall and winter. Additionally, the increased energy available for low pressure development will likely result in some additional monster storms. Rain or ice storms are more likely than snow for us. posted: Oct 30 2010 at 10:40 am [/weather/oct10] permanent link Wed, 27 Oct 2010 Philadelphia Weekend Weather Forecast -Wed PM The extremely deep low pressure system affecting the Midwest will shear off to the north and west, as it drags a cold front through late Thursday. A similar scenario to last weekend, as a cold snap Friday into Saturday is expected to moderate quickly as the jet stream relaxes to our north on Sunday. Some unknowns for the weekend-- there's the possibility of upper air disturbances bringing some instability cloudiness for Saturday. Additionally, as warm air returns on Sunday, some mid level cloudiness is possible. Will have to wait until Friday for these upper air features to clarify. Sat 10/30: Sunny breezy and cooler. Some cloudiness possible in the afternoon. High 58. Sun 10/31: Mostly sunny and a bit milder. Some clouds move in during the late afternoon. High 62. Climate Forecast Discussion: Solar cycle 24 continues to ramp up. Total solar irradiance has increased. Add this increased thermal background to the greenhouse warming and I expect to see much milder temps this fall and winter. Additionally, the increased energy available for low pressure development will likely result in some additional monster storms. Rain or ice storms are more likely than snow for us. posted: Oct 27 2010 at 8:50 pm [/weather/oct10] permanent link Thu, 21 Oct 2010 Philadelphia Weekend Weather Forecast -Thurs PM High pressure will drift over us on Saturday, as the brief cold spell for Friday fades with a change to a southwesterly flow. A developing warm front that will shear to our north will bring considerable mid level cloudiness on Sunday. The models keep us dry. Sat 10/23: Sunny, cold early becoming mild during the afternoon. High 65. Sun 10/24: Considerable mid-level cloudiness but mild. High 69. posted: Oct 21 2010 at 9:53 pm [/weather/oct10] permanent link posted: Oct 21 2010 at 9:52 pm [/weather/oct10] permanent link Thu, 14 Oct 2010 Philadelphia Weekend Weather Outlook -Thur AM The rains coming today will be less intense than previously expected. The deep low intensification is now forecast be less intense and will move away sooner than had previously been forecast. Sat 10/16: Partly sunny, windy and cool. Significant periods of cloudiness in the afternoon. High 56. Sun 10/17: Partly sunny, still breezy and milder. High 64 . posted: Oct 14 2010 at 8:12 am [/weather/oct10] permanent link Tue, 12 Oct 2010 Philadelphia Weekend Weather Outlook -Tues PM Deep low pressure as a result of explosive cyclogenesis is expected to occur around the mid-Atlantic area Thursday through Friday. The resultant Nor'easter will cause rain from Thurs thru Fri. The deep low will vertically stack over New England on Saturday and will slowly exit, causing windy conditions and instability cloudiness for the the beginning of the weekend. Sat 10/16: Partial clearing, very windy and cool. Significant cloudiness in the afternoon with a slight chance of a light scattered shower. High 56. Sun 10/17: Partly sunny, still breezy and milder. High 64 . posted: Oct 12 2010 at 8:04 pm [/weather/oct10] permanent link Fri, 08 Oct 2010 Philadelphia Weekend Weather Forecast -Fri AM A beautiful weekend coming up. Large area of high pressure dominates. Meteorologically boring, but nonetheless, beautiful! Enjoy! Sat 10/9: Sunny and pleasant! High 73. Sun 10/10: Sunny and pleasant! High 75. posted: Oct 08 2010 at 9:32 am [/weather/oct10] permanent link Sat, 02 Oct 2010 Philadelphia Weekend Weather Update -Sat PM A northeasterly surface flow in combination with an upper trough/developing closed low will bring unsettled conditions for Sunday afternoon through the beginning of the week. At the surface, an inverted coastal trough will bring moisture up along the coast Sunday afternoon and will combine with the closed upper level low. Tonight's NAM model brings rain into Philadelphia about 2 PM Sunday. This afternoon's GFS still holds off the precip until evening. I'm leaning towards the NAM Sun 10/3: Some sun very early, then cloudy. Showers likely mid to late afternoon. High 63. posted: Oct 02 2010 at 10:41 pm [/weather/oct10] permanent link Philadelphia Weekend Weather Forecast -Sat AM High pressure will give us beautiful fall weather today. A northeasterly surface flow in combination with an upper trough/developing closed low will bring unsettled conditions for late Sunday through the beginning of the week. At the surface, an inverted coastal trough will bring moisture up along the coast late Sunday and will combine with the closed upper level low. Sat 10/2: Sunny in the morning, scattered fair weather clouds in the afternoon. High 65. Sun 10/3: Some sun very early, then cloudy. There's the possibility of showers by mid or late afternoon. High 63. posted: Oct 02 2010 at 8:37 am [/weather/oct10] permanent link Fri, 01 Oct 2010 Philadelphia Weekend Weather Update -Fri AM The heavy rains are moving away this morning. A fall-like feeling for the weekend, as cool high pressure builds in north, giving us a northeasterly flow. An upper air disturbance and upper trough will likely cause instability cloudiness to develop; it's unclear how much cloudiness we will have, but it's appearing right now that there may be considerable cloudiness for the weekend. But dry and cool conditions expected. Sat 10/2: Partly sunny in the morning, considerable cloudiness in the afternoon. High 65. Sun 10/3: Considerable cloudiness and cool. High 63. posted: Oct 01 2010 at 5:54 am [/weather/oct10] 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.