US Extended Forecast thru Aug 2

Amplified Pattern To Deliver Another Early Fall-Like Airmass To The Central/Eastern States...

Deep Trough Will Be Over The Eastern Third Of The Conus To Start The Medium Range Period But The Longwave Ridge/Trough Orientation Will Stay In Place Into Next Weekend.

Ridging Via A Strengthening Upper High Moving Northward Through The Nw Atlantic Toward Newfoundland Will Help Maintain The Familiar Pattern With A Westward Retrogression Likely By Sat Aug 2.

Over The West...Ridging Will Stay In Place Until Lower Heights Over The Ne Pacific Slowly Push Into British Columbia... Shortening The Wavelength Across The Conus.

With A Similar Setup To The Last Cool Air Event... Around July 14-18... Much Of The Same Effects Should Occur... The Caveat Being That This Will Not Be Quite As Strong As The Last Event But Still
Impressive In Its Own Right.

Max Temps Should Be Near 10f Below Climo In The East Behind The Front And 10-20f Below Climo In The Southern Plains Midweek After The Fropa In The Overrunning Precip Area.

In Addition... Nw Flow Aloft Will Support The Chance For Mcv-Like Thunderstorm Complex To Travel Southeastward Through Ok/Tx Into La/Ar Wed-Thu.

The West Will Remain Warm/Hot... But With A Trend Toward Climo By Next Weekend.

Cold Front That Will Bring The Cooler Airmass To The Eastern Two Thirds Of The Conus Will Not Make It Far Into The Western Atlantic As Ridging Stops It From Moving East.

Ensembles All Show Upper Ridging Pushing Back Westward Next Fri-Sat Which Should Allow The Front To Move West As A Warm Front Close To The Coast... Increasing Chances Of Rain For The Southeast to New England.


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