The Weather Prediction Center

Short Range Forecast Discussion

[Abbreviations and acronyms used in this product]
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Short Range Forecast Discussion
NWS Weather Prediction Center College Park MD
355 AM EDT Mon Oct 20 2014

Valid 12Z Mon Oct 20 2014 - 12Z Wed Oct 22 2014

***Unsettled weather for the northwestern states***

***Showers and storms for southern Texas and New Mexico***

***Rain for the Northeast U.S. by midweek***

An active weather pattern continues across the northwest corner of
the U.S. as a cold front currently near the coast continues to
move inland early this week.  This will bring down snow levels
enough to warrant mention of rain/snow showers for the higher
elevations of the central and northern Rockies in the progs. 
Another cold front will approach the Pacific Northwest by Tuesday
night and this is expected to bring more rain and high elevation
snow to Washington and Oregon.

Scattered showers and thunderstorms are likely to develop over
southern Texas and into New Mexico for the early part of the week.
 Moisture flowing towards the northwest from the Gulf of Mexico
combined with instability aloft will foster the development of
mainly afternoon and evening showers and storms.

Things get interesting for New England and upstate New York by
Tuesday as a nor'easter develops over the coastal waters of the
Atlantic.  An upper level disturbance is expected to drop through
the Great Lakes into the Northeast, which will result in the
development of this storm system.  The heaviest rainfall is
expected by Tuesday morning for locations primarily northeast of
Philadelphia as moisture is advected northward from the Atlantic
Ocean.  A few inches of rainfall is possible by midweek over New
England before the storm departs.


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Last Updated: 355 AM EDT Mon Oct 20 2014