DAY 4-8 CONVECTIVE OUTLOOK NWS STORM PREDICTION CENTER NORMAN OK 0345 AM CDT TUE APR 22 2014 VALID 251200Z - 301200Z ...DISCUSSION... ...SIGNIFICANT MULTI-DAY SEVERE EVENT EXPECTED ACROSS THE SOUTH CENTRAL U.S. SATURDAY AND SUNDAY...STRONG TORNADOES ARE POSSIBLE... 22/00Z ECMWF IS EXHIBITING REASONABLE RUN-TO-RUN CONSISTENCY OVER THE LAST FEW DAYS WITH THE GFS NOW TRENDING TOWARD ECMWF SOLUTIONS. THIS FORECAST IS HEAVILY WEIGHTED TOWARD THE ECMWF. EARLIER CONCERNS REGARDING A POLAR FRONT UNDERCUTTING STRONG SWLY FLOW ALOFT OVER THE SRN PLAINS ARE LESSENING. WHILE UPPER BLOCK OVER CNTRL CANADA WILL ULTIMATELY FORCE A DOMINANT SFC ANTICYCLONE INTO THE MIDDLE OF THE CONUS...IT APPEARS THE LEADING EDGE OF THIS AIR MASS SHOULD STRUGGLE TO ADVANCE MUCH SOUTH OF I-70 OVER KS/MO THIS WEEKEND.
Posted on: Tue, 22 Apr 2014 12:15:12 +0000