US Short Term and Extended Forecast thru Nov 9

Short Range Forecast Discussion
Valid 12Z Sat Nov 02 2013 - 12Z Mon Nov 04 2013

...Weather will become increasingly active across the northwestern corner of the Country while conditions settle down in the East...

Weather will become increasingly active across the northwestern corner of the Country this weekend as a potent Pacific system moves onshore. An abundance of moisture streaming inland ahead of the storm's cold front will fuel moderate to heavy rains along the coastal ranges of Washington/Oregon and accumulating snows over the Cascades early Saturday morning.

Even though moisture will become increasingly sparse with this system as it quickly crosses the Intermountain West on Saturday and races through the Northern Plains on Sunday...strong winds and lowering temperatures behind the front should still produce widespread snow showers along the favored terrain of the Intermountain West and Northern Rockies this weekend.

Showers and thunderstorms along the Eastern Seaboard will continue to push farther out into the Atlantic on Saturday...with storms even expected to clear the southern tip of Florida by Sunday morning.

A cold front dropping through the Great Lakes and New England will lower temperatures while triggering light rain and snow showers on Saturday...but conditions will really start to clear out across the East as a large dome of high pressure expands over the region.

Elsewhere across the Nation...weak energy aloft lifting out of Northern
Mexico during the later half of the weekend could trigger light
precipitation across the Southern Rockies and West Texas.
Extended Forecast Discussion
Valid 12z Tue Nov 05 2013 - 12z Sat Nov 09 2013

Progressive Flow Of Moderate Amplitude Continues To Be Advertised
By The Global Numerical Models At The Medium Range, With Only
Modest Variations In The Handling Of Individual Shortwaves.

Relied On The Usual Robustness Of The European Centre Product
Suite--Including Its 50-Member Mean--As A Synoptic Guide For The
Manual Progs. The Nuances In The Run-To-Run Deterministic Ecmwf
Were Offset By A Hefty Blending Of The 12z/01 Ecens Mean. The
12z/01 Gfs--The Most Recent Run From Which Mos Was Derived That
Was Available In Time For This Forecast--Was Not Harmonious Enough With The Other Global Guidance In Several Key Synoptic Areas To Prepossess Use Of Its Numbers.

The Contiguous United States Will Ride A Thermal Rollercoaster At
The Medium Range, With Double-Digit Anomaly Swings.

The Best Bet For Heavy Precipitation Will Be Over The Pacific Northwest And Over The Central States. In Both Cases, The Nearby Oceans Will Afford The Moisture Source Upon Which The Dynamics Will Generate The Widespread Precipitation.

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