US Extended Forecast thru Apr 26

Guidance Preferences/Uncertainty Assessments...

Models And Ensembles Still Have Some Timing/Strength Issues With
Smaller Scale Embedded Impulses/Interactions...But Overall Offer
Reasonably Clustered Mid-Larger Scale Flow Evolutions And Improved Forecast Spread For The Next Week.

This Wpc Blended Solution Is Near The Center Of The Full Envelope Of Guidance Solutions And Provides Good Continuity Generally Only Slightly More Amplified And Less Progressive Than Yesterday.

Predictability Seems Near To Above Average For Most Forecast
Variables Out Through Medium Range Time Scales.

Pattern Overview And Sensible Weather Highlights...

Quite Ample Mid-Upper Level Trough Energies Over The Great Lakes / Midwest Tue Work/Interact Over Then Off The Ern/Nern Us Wed/Thu ... With Modest Pcpn In Advance And Decent Post-Frontal Cooling High Pressure.

This Strongly Amplifying Kicker System Meanwhile Forces A Lead / Separated Srn Stream Mid-Upper Level Early Week Trough And Surface System Off The Sern Us To Eject Newd Across The Wrn Atlantic In Response.

Upstream...Another Amplified Mid-Upper Level Trough/Potent Height
Falls Works Inland Across The Us West Coast Tue And Through The
Intermountain West And Still Wintery Nrn Rocky States Midweek
Before Crossing The Central Then East-Central Us Thu/Fri.

This Should Set The Stage For A Well Organized Low/Front To Develop And Increasingly Focus Moisture/Pcpn Along With Post-Frontal Cooling Across The Region.

Heaviest Pcpn Potential Should Be Closer To The Main Low Track Across Nwrn Us/Nrn Rockies Terrain And Out Across The N-Central Us...But Dynamic Support And Instability Should Also Offer A Convective Spark Farther Southward Across The Well Warmed S-Central And E-Central Us As Moisture Returns From The Gulf Of Mexico.

Yet Another Dynamic Trough And Surface System With Enhanced Pcpn Reaches The Nwrn Us In About A Week.

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