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Philadelphia Week Weather Discussion- Thurs PM
The incredibly wet weather will continue on Saturday, as a weak disturbance moves just north of us and causes the development of a coastal low off the NJ coast. Showers and thunderstorms are possible throughout the day on Saturday. The NAM (79) is cooler than the GFS (85) as a high.
Sunday is expected to be a mix of sun and clouds, but with the low just off the coast, a shower is possible, especially in the afternoon.
Sat 6/20: Mostly cloudy, showers in the morning and thundershowers likely during the afternoon. High 80.
Sun 6/21: Partly sunny/ partly cloudy. Chance of an afternoon shower. High 82.
Solar- Climate Update: As I've been predicting since last October, we will remain in an climatically cool weather pattern for the end of spring and likely the summer, as solar flux and total solar irradiance are at extreme lows due to an anomalous lull in the the sunspot cycle. Solar flux remains at about 68 (at the height of the sunspot cycle in 2001 and 2002, solar flux values were near 200.) While an increase in solar activity has been predicted to begin, and there are some signs that it has, with such low values, our earth is simply receiving less heat. Additionally, low solar wind values allow higher energy cosmic rays to enter our atmosphere, seeding cloud formation. (Or so the theory goes.) Either way, continue to expect unusually cool weather on average for the next several months, possibly well into the fall and winter.
posted: Jun 18 2009 at 9:16 pm
[/weather/jun09] 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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