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December 15-17th Potential Winter Storm


SpartyOn

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PRELIMINARY EXTENDED FORECAST DISCUSSION

NWS HYDROMETEOROLOGICAL PREDICTION CENTER COLLEGE PARK MD

323 AM EST SAT DEC 08 2012

VALID 12Z WED DEC 12 2012 - 12Z SAT DEC 15 2012

POSITIVE HEIGHT ANOMALIES TO THE NORTH OF HAWAII AND JUST TO THE

EAST OF GREENLAND WILL BOTH ACT TO FAVOR A RELOADING TROUGH OVER

THE WESTERN CONUS NEXT WEEK.

reloaded...... :drunk:

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This general timeframe has been showing up for a while. One problem is that the antecedent airmass looks like garbage outside of the far northern tier so at this point I don't see much hope for significant wintry weather outside of that area. Edit: talking about the first event.

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0z GFS has 2 storms in this period. First is a weak GLC that goes through Chicago. Energy gets held back around the TX/NM area and ejects and phases a bit too late and bombs into this.

Right where we want it at 216 hours. And a repeat at the end of the run to boot. Don't call it a comeback.

:weenie:

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0z GFS has 2 storms in this period. First is a weak GLC that goes through Chicago. Energy gets held back around the TX/NM area and ejects and phases a bit too late and bombs into this.

It could change but the scenario for now seems to be an event around the 15th/16th that may have cold air problems for many with something potentially more interesting after that. 00z GGEM also supports the 00z GFS and 12z Euro with that general thinking.

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