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Thu, 26 Feb 2009
Philadelphia Winter Weather- Thurs PM Update
Latest NAM model suggests a possible ice storm for Sat night. Much uncertainty about this weekend storm. Stay tuned.
posted: Feb 26 2009 at 10:27 pm
[/weather/feb09] permanent link
Philadelphia Weather Forecast- Thurs PM
The lack of continuity with the model runs continue. A very deep and somewhat negatively tilted upper jet will spawn low pressure and a closed low in the southeast US. The surface low will come up the coast on Sunday. Current model shows rain for our area. That said, this anomalous configuration could easily change into a snow storm. So this needs to be watched. Right now, it's rain for us. Stay tuned. Here's my earlier summary:
A warm but moist southwesterly flow will bring milder temps to our area today through early Saturday, ahead of a low pressure system that will move through later Friday with rain.
The front associated with the Friday low stalls to our south. The next scenario has become complex...
The latest GFS has multiple centers of low pressure developing along this boundary and moving up the coastline. The configuration of the jet stream has been changing from model run to model run, so confidence in this forecast is unusually low.
Right now, Saturday is a transitional day, with Sunday being the stormier one.
Sat 2/28: tentative: Partly cloudy in the morning, increasing clouds in the afternoon. Rain at night. High near 40.
Sun 3/1: tentative: Cloudy with rain and wind. High 41.
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posted: Feb 26 2009 at 7:07 pm
[/weather/feb09] permanent link
Philadelphia Weather Forecast- Thurs AM
A warm but moist southwesterly flow will bring milder temps to our area today through early Saturday, ahead of a low pressure system that will move through later Friday with rain.
The front associated with the Friday low stalls to our south. The next scenario has become complex...
The latest GFS has multiple centers of low pressure developing along this boundary and moving up the coastline. The configuration of the jet stream has been changing from model run to model run, so confidence in this forecast is unusually low.
Right now, Saturday is a transitional day, with Sunday being the stormier one.
Sat 2/28: tentative: Partly cloudy in the morning, increasing clouds in the afternoon. Rain at night. High near 40.
Sun 3/1: tentative: Cloudy with rain and wind. High 41.
See microblog updates on the weather on Twitter.com Follow me as: theweatherguy
posted: Feb 26 2009 at 7:06 am
[/weather/feb09] 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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