NWS STORM PREDICTION CENTER NORMAN OK 0100 AM CDT THU JUN 27 2013 VALID 271200Z - 281200Z ...THERE IS A SLGT RISK OF SVR TSTMS OVER A PORTION OF THE CNTRL/SRN PLAINS INTO THE MID-LOWER MS VALLEY... ...THERE IS A SLGT RISK OF SVR TSTMS OVER A PORTION OF THE GREAT LAKES AREA... ...THERE IS A SLGT RISK OF SVR TSTMS OVER A PART OF THE SERN STATES... ...THERE IS A SLGT RISK OF SVR TSTMS FROM THE MID ATLANTIC INTO A PORTION OF THE NERN U.S.... ...SYNOPSIS... THE SYNOPTIC UPPER PATTERN WILL UNDERGO AMPLIFICATION THURSDAY WITH A GRADUAL BUILDING OF THE RIDGE OVER THE WRN U.S. AND DEEPENING OF TROUGH OVER THE ERN STATES. SHORTWAVE TROUGH OVER THE OH VALLEY REGION WILL MOVE SLOWLY EWD INTO THE MID-ATLANTIC AND NERN STATES. OTHER VORTICITY MAXIMA WILL DROP SEWD THROUGH THE UPPER MS VALLEY AND GREAT LAKES REGION. AT THE SFC A COLD FRONT WILL DEVELOP SWD THROUGH KS AND THE MID MS VALLEY REGION WITH AN OCCLUDED FRONT FARTHER NORTH INTO WI. FARTHER EAST A SFC LOW WILL ACCOMPANY THE SHORTWAVE TROUGH INTO THE MID ATLANTIC REGION WITH A LEE TROUGH EXTENDING SWD FROM THE LOW THROUGH VA AND THE CAROLINAS.
jeudi 27 juin 2013
Jun 27, 2013 0600 UTC Day 1 Convective Outlook
DAY 1 CONVECTIVE OUTLOOK
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