NWS STORM PREDICTION CENTER NORMAN OK 1230 PM CDT WED MAY 07 2014 VALID 081200Z - 091200Z ...THERE IS A SLGT RISK OF SVR TSTMS FROM A PORTION OF THE SRN/CNTRL PLAINS INTO PARTS OF THE LOWER-MIDDLE AND UPPER MS VALLEY REGIONS... ...SUMMARY... WIDESPREAD SHOWERS AND THUNDERSTORMS ARE EXPECTED ON THURSDAY FROM PORTIONS OF THE NORTHERN PLAINS EASTWARD ACROSS THE UPPER MISSISSIPPI VALLEY AND GREAT LAKES REGION...AND EXTENDING SOUTH-SOUTHWESTWARD FROM THIS AREA ACROSS THE MID AND LOWER MISSOURI VALLEY INTO THE SOUTHERN PLAINS. STRONG TO SEVERE STORMS WILL BE POSSIBLE -- PRIMARILY WITHIN THE PORTION OF THE AREA EXTENDING FROM THE UPPER MISSISSIPPI VALLEY TO TEXAS...WHERE LARGE HAIL...DAMAGING WINDS...AND A FEW TORNADOES WILL BE POSSIBLE. ...SYNOPSIS... SYNOPTIC PATTERN WILL REMAIN AMPLIFIED THROUGH THURSDAY AS AN UPPER TROUGH NOW CENTERED OVER THE GREAT BASIN ADVANCES EWD THROUGH THE PLAINS AND MS VALLEY REGIONS. A JET STREAK NOW LOCATED WITHIN UPPER TROUGH BASE WILL EJECT NEWD INTO THE CNTRL PLAINS BY 12Z THURSDAY. THIS FEATURE WILL CONTINUE NEWD INTO THE UPPER MS VALLEY DURING THE AFTERNOON. ANOTHER IMPULSE EMBEDDED WITHIN THE UPPER TROUGH AND ON THE HEELS OF LEAD JET STREAK WILL MOVE INTO THE SRN/CNTRL PLAINS BY THURSDAY EVENING. AT THE SFC AN AREA OF LOW PRESSURE WILL SHIFT FROM ERN NEB INTO CNTRL MN DURING THE DAY. WARM FRONT EXTENDING EWD FROM THE LOW WILL LIFT NWD THROUGH THE GREAT LAKES WHILE TRAILING COLD FRONT ADVANCES SEWD THROUGH THE CNTRL PLAINS INTO THE MID MS VALLEY REGION. A DRYLINE WILL MIX EWD THROUGH WRN/CNTRL TX...WRN OK INTO WCNTRL KS WHERE IT WILL INTERSECT THE SEWD ADVANCING COLD FRONT.
mercredi 7 mai 2014
Day 2 Convective Outlook,,,,,,,,,,,,,,,,,,Tomorrow's Outlook
DAY 2 CONVECTIVE OUTLOOK
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