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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, 26 Mar 2010

    Philadelphia Weekend Weather Forecast- Fri PM
    HIgh pressure will build in later this afternoon, clearing skies for Saturday. Low pressure will approach on Sunday. It seems that the rain will wait for late in the afternoon or early evening.

    Sat 3/28: Sunny and cool. High 48.

    Sun 3/29: Cloudy (no sun but brighter patch of clouds mid day mid-day). Rain waits until after 5 or 6 PM. High 53.

    posted: Mar 26 2010 at 12:43 pm

    [/weather/mar10] permanent link

    Thu, 25 Mar 2010

    Philadelphia Weekend Weather Forecast- Thurs PM
    Things have speeded up a bit with the timing of the weather systems. An active weather pattern, as a fast early spring jet flow will bring rapid changes in the weather. A departing low on Friday will allow high pressure to give us fair weather for Saturday. Low pressure approaches on Sunday with rain by mid afternoon.

    Sat 3/28: Sunny and cool. High 50.

    Sun 3/29: Increasing cloudiness. Rain by mid afternoon. High 55.

    posted: Mar 25 2010 at 12:45 pm

    [/weather/mar10] permanent link

    Wed, 24 Mar 2010

    Philadelphia Weekend Weather Forecast- Wed PM
    An active weather pattern, as a fast early spring jet flow will bring rapid changes in the weather. A departing low on Friday will allow high pressure to give us fair weather for Saturday. Low pressure approaches on Sunday with rain by late in the afternoon.

    Sat 3/28: Sunny and cool. High 50.

    Sun 3/29: Increasing cloudiness. Rain by late afternoon. High 55.

    posted: Mar 24 2010 at 5:10 pm

    [/weather/mar10] permanent link

    Sat, 20 Mar 2010

    Philadelphia Weekend Weather Forecast- Sat AM
    High pressure will bring a southerly flow of warmer temps to our area on the weekend, in time for the start of Spring at 12:32 today. An approaching low pressure system from the midwest on Monday. Colder temps return for next week.

    Sat 3/20: Sunny. Mild. High 71

    Sun 3/21: Partly cloudy- a mix of clouds and sun. High 70.

    Solar Climate Discussion (Updated 3/9): The sun is beginning to come out of a solar minimum, and there has finally been an
    increase in solar activity signaling the 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 March, 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 cooler than normal temperatures into the spring.

    posted: Mar 20 2010 at 8:22 am

    [/weather/mar10] permanent link

    Fri, 19 Mar 2010

    Philadelphia Weekend Weather Forecast- Fri PM
    High pressure will bring a southerly flow of warmer temps to our area on the weekend, in time for the start of Spring at 12:32 on Sat. An approaching low pressure system from the midwest will bring a chance of showers late on Sunday. Colder temps return for early next week.

    Sat 3/20: Sunny. Mild. High 70

    Sun 3/21: Increasing cloudiness. Mild. Chance of showers in the evening. High 68.

    Solar Climate Discussion (Updated 3/9): The sun is beginning to come out of a solar minimum, and there has finally been an
    increase in solar activity signaling the 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 March, 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 cooler than normal temperatures into the spring.

    posted: Mar 19 2010 at 9:36 pm

    [/weather/mar10] permanent link

    Tue, 16 Mar 2010

    Philadelphia Weekend Weather Outlook- Tues AM
    High pressure will bring a southerly flow of warmer temps to our area on the weekend, in time for the start of Spring at 12:32 on Sat. An approaching low pressure system from the midwest will bring a chance of showers late on Sunday. Colder temps return for early next week.

    Sat 3/20: Mostly sunny. Mild. High 66.

    Sun 3/21: Increasing cloudiness. Mild. Chance of showers late in the afternoon or evening. High 64.

    Solar Climate Discussion (Updated 3/9): The sun is beginning to come out of a solar minimum, and there has finally been an
    increase in solar activity signaling the 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 March, 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 cooler than normal temperatures into the spring.

    posted: Mar 16 2010 at 7:57 am

    [/weather/mar10] permanent link

    Sat, 13 Mar 2010

    Philadelphia Weather Update- Sat AM
    The 1 AM rerun of the GFS and NAM models has cut down a bit on the extreme rain amounts compared with last night's models. (By about 0.60 inches) Still heavy rains expected as the rain dynamically develops over us. The heaviest rain is still expected Saturday afternoon.

    posted: Mar 13 2010 at 8:31 am

    [/weather/mar10] permanent link

    Fri, 12 Mar 2010

    Philadelphia Weekend Weather Forecast- Fri PM
    The energy from the midwest low is transferring to a new secondary low along the coast, right over our area. The low will be slow to leave due to a closed low upper system and a blocking patter.

    Both the NAM and GFS are similar and crank out over 3 inches of rain by Sunday morning. The heaviest rain will be on Saturday, especially afternoon.

    It appears that lighter rain/showers will continue into Sunday, as the blocked low will remain in the area.

    Sat 3/13: Cloudy with rain. The rain will be very heavy. High 50

    Sun 3/14: Cloudy with intermittent showers possible. High 52.

    Solar Climate Discussion (Updated 3/9): The sun is beginning to come out of a solar minimum, and there has finally been an
    increase in solar activity signaling the 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 March, 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 cooler than normal temperatures into the spring.

    posted: Mar 12 2010 at 8:03 pm

    [/weather/mar10] permanent link

    Thu, 11 Mar 2010

    Philadelphia Weekend Weather Forecast- Thurs PM
    Low pressure developing in the midwest will deepen as its upper air circulation closes off. With a blocked pattern developing (similar to our last 'storm' here that didn't deliver the expected snow amounts), this storm will linger through the weekend while it induces secondary development off of the coast

    The latest NAM cranks out very heavy rains on Saturday. Flooding of rivers and streams is likely because the ground is saturated with snow melt.

    It appears that lighter rain/showers will continue into Sunday, as the blocked low will remain in the area.

    Sat 3/13: Cloudy with rain. The rain will likely be very heavy. High 53

    Sun 3/14: Cloudy with intermittent showers possible. High 50.

    Solar Climate Discussion (Updated 3/9): The sun is beginning to come out of a solar minimum, and there has finally been an
    increase in solar activity signaling the 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 March, 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 cooler than normal temperatures into the spring.

    posted: Mar 11 2010 at 10:28 pm

    [/weather/mar10] permanent link

    Wed, 10 Mar 2010

    Philadelphia Weekend Weather Outlook- Wed PM
    A low pressure system will develop in the midwest during the mid week period and deepen as its upper air support develops into a closed low. With a blocked pattern developing (similar to our last 'storm' here that didn't deliver the expected snow amounts), this storm will linger from Thursday through Sunday-- the midwest low will induce development of a secondary coastal low.

    The GFS is predicting 3-4 inches of rain, with the heaviest rain falling on Saturday. Flooding of rivers and streams is expected because the ground is saturated with snow melt. Stay tuned

    It appears that lighter rain/showers will continue into Sunday, as the blocked low will remain in the area.

    Sat 3/13: Cloudy with rain. The rain will likely be very heavy. High 53

    Sun 3/14: Cloudy with intermittent showers possible. High 50.

    Solar Climate Discussion (Updated 3/9): The sun is beginning to come out of a solar minimum, and there has finally been an
    increase in solar activity signaling the 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 March, 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 cooler than normal temperatures into the spring.

    posted: Mar 10 2010 at 7:18 pm

    [/weather/mar10] permanent link

    Tue, 09 Mar 2010

    Philadelphia Weekend Weather Outlook- Tues AM
    A low pressure system will develop in the midwest during the mid week period and deepen as its upper air support develops into a closed low. With a blocked pattern developing (similar to our last 'storm' here that didn't deliver the expected snow amounts), this storm will linger from Thursday through Sunday-- the midwest low will [try to] induce development of a secondary coastal low.

    With the transfer of energy to the coastal low and the uncertainty of the exact dynamics in our area, the models have ranged from 4.0 inches of rain to about 1.5 inches with last night's model runs.

    It does appear that Saturday will be wet and Sunday may not be much better, it's unclear whether the rains will be torrential or whether there may be extended times of just light rain, drizzle or just clouds. This is a scenario where the details will become more clear by late Thursday.

    Sat 3/13: tentative: Rain, showers, possible thundershowers. High 60

    Sun 3/14: tentative: Cloudy, some breaks of sun. Chance of some showers. High 58.

    Solar Climate Discussion (Updated 3/9): The sun is beginning to come out of a solar minimum, and there has finally been an
    increase in solar activity signaling the 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 March, 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 cooler than normal temperatures into the spring.

    posted: Mar 09 2010 at 8:03 am

    [/weather/mar10] permanent link

    Thu, 04 Mar 2010

    Philadelphia Weekend Weather Forecast- Thurs PM
    A jet stream pattern change will bring milder temps to our area over the weekend. It will seem warm since it's been a colder than normal February.

    Sat 3/6: Sunny and milder. High 50

    Sun 3/7: Sunny and milder. High 53

    posted: Mar 04 2010 at 6:39 pm

    [/weather/mar10] permanent link

    Tue, 02 Mar 2010

    Philly Winter Weather Update- Tues AM
    The latest GFS model has the coastal storm closer to Philadelphia than previous runs. This storm, which is expected to develop just to our south and east, will bring a mix of wet snow to our area on Wednesday. The storm track is considerably closer with this model run; this has been the trend with most of the storms this winter. Little accumulation is expected, but expect another nasty day, similar to last Thursday.

    I'll update this evening.

    posted: Mar 02 2010 at 7:21 am

    [/weather/mar10] 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.

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