mercredi 7 mai 2014

Day 2 Convective Outlook,,,,,,,,,,,,,,,,,,Tomorrow's Outlook

DAY 2 CONVECTIVE OUTLOOK  
   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.  

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