SPC Apr 18, 2013 Day 4-8 Convective Outlook

Day 4-8 Outlook

DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0301 AM CDT THU APR 18 2013

VALID 211200Z - 261200Z

...DISCUSSION...
NW FLOW WILL BECOME THE PREDOMINANT FLOW DURING THE DAY4-8 TIME
FRAME.  BOTH THE ECMWF AND GFS AGREE THAT A SIGNIFICANT SHORT-WAVE
TROUGH WILL DIG SEWD ACROSS THE CNTRL ROCKIES TOWARD KS/OK DAY5 WITH
ANOTHER SHARP COLD FRONT EXPECTED TO PLUNGE SOUTH ACROSS THE PLAINS.
WEAK RETURN FLOW WILL BE NOTED ACROSS TX AHEAD OF THIS SYSTEM AND
MODIFIED MOISTURE IS EXPECTED TO PROVIDE SUFFICIENT INSTABILITY FOR
SCATTERED CONVECTION AHEAD OF SHORT-WAVE.  EVEN SO CONFIDENCE IN
WIDESPREAD ORGANIZED SEVERE IS TOO LOW TO WARRANT A SEVERE RISK THIS
PERIOD.

via SPC Forecast Products http://www.spc.noaa.gov/products/exper/day4-8/