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817 ACUS02 KWNS 031728 SWODY2 SPC AC 031726 DAY 2 CONVECTIVE OUTLOOK NWS STORM PREDICTION CENTER NORMAN OK 1126 AM CST SUN MAR 03 2013 VALID 041200Z - 051200Z ...NO SVR TSTM AREAS FORECAST... ...SYNOPSIS... A PROGRESSIVE/AMPLIFIED LONGWAVE PATTERN WILL CONTINUE OVER THE CONUS THROUGH MONDAY. A SHORTWAVE TROUGH CURRENTLY OVER THE CANADIAN/NORTHERN CONUS ROCKIES WILL AMPLIFY/DIG EAST-SOUTHEASTWARD OVER THE NORTHERN/CENTRAL PLAINS TO UPPER MIDWEST BY MONDAY NIGHT...WHILE A COLD FRONT SURGES SOUTHEASTWARD ACROSS THE SOUTH-CENTRAL CONUS. ...MID-SOUTH/TN VALLEY... TSTMS ARE EXPECTED TO INCREASE AFTER DARK NEAR/JUST BEHIND THE EAST-SOUTHEAST MOVING COLD FRONT...WITH AID OF INCREASING WARM ADVECTION AND MOISTENING NEAR/ABOVE THE SURFACE. SUCH DEVELOPMENT SHOULD INITIALLY OCCUR ACROSS THE OZARKS MONDAY EVENING WITH SUBSEQUENT EAST-SOUTHEASTWARD DEVELOPMENT INTO THE TN VALLEY OVERNIGHT/EARLY TUESDAY. WHILE SOME SMALL HAIL MAY BE POSSIBLE GIVEN THE STEEPNESS OF THE LAPSE RATES...A MODEST MOISTURE AND WEAK CAPE ENVIRONMENT /A FEW HUNDRED J PER KG AT MOST/ IS EXPECTED TO PRECLUDE SEVERE HAIL. ..GUYER.. 03/03/2013
