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Sleet and Freezing Rain for Thursday Night.
Latest GFS model run continues to delay precipitation on Thursday until early evening. Snow/sleet may start about 4-7PM in Philadelphia (earlier south and west). Following a brief period of light snow, temperatures in the lower half of the atmosphere become too warm for snow, but temps in the lower 7000 feet still are below freezing until 7 or 8PM, allowing any snow to turn to sleet. Temperatures on the ground may remain colder than expected for a longer period of time, allowing sleet and rain to become freezing rain for much of the evening, especially north and west of the city. A complete turnover to rain should occur after midnight. A brief period of snow possible before it all ends on Friday morning.
For the weekend, high pressure builds in after the storm departs on Friday. A storm approaches late Sunday, but it is expected to move out to our south.
Sat 12/17: Sunny, windy and seasonably cold. High 42.
Sun 12/18: Sunny in the morning, some cloudiness in the afternoon. High 39.
posted: Dec 14 2005 at 4:18 pm
[/weather/dec05] permanent link
Philly Weather Update- Wednesday Morning
Consistency in the model runs with this next event. Precipitation will start late Thursday, probably between 4-6 PM in Philadelphia. Initially as a brief period of snow, it will change to sleet, freezing rain and rain rapidly during the evening. Still some question whether cold air will linger at the surface, causing icy conditions in the suburbs at the start. Either way, a changeover to rain will occur and the rain will end on Friday.
For the weekend, high pressure builds in after the storm departs on Friday. A storm approaches late Sunday, but it is expected to move out to our south.
Sat 12/17: Sunny, windy and seasonably cold. High 42.
Sun 12/18: Sunny in the morning, some cloudiness in the afternoon. High 39.
posted: Dec 14 2005 at 8:19 am
[/weather/dec05] 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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