DAY 1 CONVECTIVE OUTLOOK NWS STORM PREDICTION CENTER NORMAN OKAny source
1249 AM CDT MON JUL 08 2013
VALID 081200Z - 091200Z
...THERE IS A SLGT RISK OF SVR TSTMS FOR THE NRN/CNTRL PLAINS...
...SYNOPSIS...
PROGRESSIVE NRN STREAM WILL BE IN PLACE TODAY POLEWARD OF A MIDLEVEL
ANTICYCLONE CENTERED OVER THE SWRN/S-CNTRL CONUS. A STRONG UPPER
TROUGH WILL ADVANCE E FROM SASKATCHEWAN TO NRN ONTARIO BY
09/12Z...WHILE A SECOND WAVE MOVES FROM THE PAC NW INTO THE NRN HIGH
PLAINS. A THIRD SHORTWAVE IMPULSE IS ALSO FORECAST TO MOVE FROM THE
GREAT BASIN INTO THE NRN PLAINS DURING THE AFTERNOON AND EVENING.
MEANWHILE OVER THE E COAST...AN UPPER-LEVEL SHORTWAVE TROUGH WILL
MOVE FROM THE MID-ATLANTIC REGION TO OFFSHORE OF SRN NEW ENGLAND BY
TONIGHT. A COLD FRONT ASSOCIATED WITH THE CANADIAN DISTURBANCE WILL
ADVANCE SWD INTO THE NRN PLAINS LATER TODAY. S OF THIS FEATURE...LOW
PRESSURE IS FORECAST TO DEEPEN OVER THE HIGH PLAINS AND EJECT ENEWD
TOWARD THE UPPER MS VALLEY OVERNIGHT. A SECOND FRONTAL BOUNDARY
ANALYZED EARLY THIS MORNING FROM THE UPPER MIDWEST SWWD INTO THE MID
MO RIVER VALLEY WILL GRADUALLY SHIFT SEWD INTO LOWER MI LATER TODAY
AND EXTEND WWD TOWARD NEB/SD.
No comments:
Post a Comment