Severe Weather Threat Day 2 Sun Jul 7

Upper Low Over The Mid Ms Valley Is Forecast To Finally Be Picked Up By Belt Of Wlys Along Nrn Tier States And Continue Through The Oh Valley. Upper Ridge Anchored Over Much Of The Srn Half Of The Country Is Forecast To Strengthen And Build Slightly Nwd. At The Sfc A Weak Cold Front Will Move Through The Upper Ms Valley And Wrn Great Lakes...But Trailing Portions Of This Boundary Will Likely Stall From Neb Wwd Into Cntrl Or Nern Wy.

Nrn Rockies Into The Nrn And Cntrl High Plains...

Storms May Redevelop Over The Higher Terrain From Wrn Sd...Nrn Wy And Srn And Swrn Mt And Spread Ewd Sunday Afternoon And Evening. Other Storms May Develop Farther South Over Neb In Vicinity Of Stalled Front. Potential Exists For A Few Supercell Structures With Isolated Large Hail And Damaging Wind Gusts From Mid-Late Afternoon Into Mid Evening.

Upper Ms Valley And Wrn Great Lakes Region...

A Few Storms May Be Ongoing From Mn To Nrn Wi In Association With A Progressive Lead Impulse...But The Extent Of Redevelopment Along The Front Is Uncertain At This Time. Should Storms Develop... They Will Likely Be Multicellular Given Weak Vertical Shear...But The Thermodynamic Environment May Become Sufficient For A Threat For Isolated Damaging Wind And Large Hail. Will Maintain 5% Severe Probabilities This Update...But Area Will Continue To Be Monitored For A Possible Slight Risk In Later Outlooks.

Oh Valley And Cntrl Appalachians Region...

Plume Of Deep Subtropical Moisture With 1.5+ Inch Pw Will Continue
To Be Drawn Nwd Ahead Of Upper Low Circulation Into The Ern Portion Of The Oh Valley And Appalachians. While The Kinematic Environment Would Support At Least A Modest Threat For Isolated Damaging Wind Gusts And Perhaps A Brief Tornado Or Two... Widespread Clouds And Areas Of Ongoing Rain Should Limit Destabilization Potential. Therefore...More Than 5% Severe Probabilities Do Not Appear Warranted At This Time.

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