Jun 18, 2014 0600 UTC Day 1 Convective Outlook,,,,,,,,,,,,,,,,,,,,,,,,,,,,http://www.spc.noaa.gov/products/outlook/day1otlk.html

DAY 1 CONVECTIVE OUTLOOK  

   NWS STORM PREDICTION CENTER NORMAN OK
   0110 AM CDT WED JUN 18 2014

   VALID 181200Z - 191200Z

   ...THERE IS A SLGT RISK OF SVR TSTMS ACROSS MUCH OF THE
   NORTHERN/CENTRAL PLAINS...AND SRN HIGH PLAINS EWD THROUGH THE UPPER
   MS VALLEY...SRN GREAT LAKES...OH VALLEY TO PA/NRN MD...

   ...SUMMARY...
   SEVERE THUNDERSTORMS ARE EXPECTED ACROSS MUCH OF THE NORTHERN AND
   CENTRAL PLAINS INTO THE UPPER MISSISSIPPI VALLEY...AND THROUGH THE
   MIDWEST AND SOUTHERN GREAT LAKES EASTWARD INTO PENNSYLVANIA.
   ISOLATED SEVERE STORMS ARE ALSO POSSIBLE FROM CENTRAL KANSAS INTO
   WEST TEXAS. LARGE HAIL AND DAMAGING WINDS WILL BE THE MAIN
   THREATS...WITH THE MOST SIGNIFICANT SEVERE STORMS EXPECTED ACROSS
   THE DAKOTAS AND MINNESOTA.

   ...SYNOPSIS...
   CLOSED LOW CENTERED OVER ERN ID/WRN MT PER WATER VAPOR IMAGERY IS
   EXPECTED TO BECOME MORE PROGRESSIVE THIS FORECAST PERIOD AS IT MOVES
   NNE TOWARD THE NRN MT BORDER NEAR SRN ALBERTA AND SWRN SASKATCHEWAN.
    AS THIS OCCURS...A MIDLEVEL IMPULSE IS EXPECTED TO TRACK NEWD INTO
   THE DAKOTAS THIS AFTERNOON.  A STRONGER SHORTWAVE TROUGH...NOW
   MOVING EWD THROUGH NV...WILL REACH THE CENTRAL HIGH PLAINS BY 19/00Z
   AND THEN TRACK ACROSS NEB TO THE ERN DAKOTAS/WRN MN BY 12Z THU. 
   MEANWHILE...A COMPACT SHORTWAVE TROUGH WILL TRACK ESEWD FROM
   WI/LOWER MI REGION AND WEAKEN AS IT REACHES NY WITHIN THE BASE OF
   TROUGH IN THE NORTHEAST STATES.  WEAKER IMPULSES ARE EXPECTED TO
   TRACK ESEWD THROUGH THE MIDWEST...OH VALLEY TO PA REGION.

   AT THE SURFACE...AN AREA OF LOW PRESSURE WILL MOVE SLOWLY NORTH
   TOWARD SRN ALBERTA...WHILE A SECOND LOW TRACKS NEWD INTO CENTRAL SD
   THIS AFTERNOON AND THEN INTO ERN SD BY LATE AFTERNOON/EARLY EVENING.
    A WARM FRONT ADVANCING NEWD ACROSS THE DAKOTAS WILL BE A FOCUS FOR
   TSTMS THROUGH MUCH OF THE FORECAST PERIOD.  MEANWHILE...THE ERN
   EXTENT OF THIS BOUNDARY CURRENTLY EXTENDING FROM FAR SRN MN THROUGH
   SRN WI...SRN LOWER MI AND REMNANT CONVECTIVE OUTFLOW BOUNDARIES WILL
   EACH FOCUS NEW TSTM DEVELOPMENT TODAY FROM THE UPPER MS VALLEY TO
   THE OH VALLEY.  EVEN FARTHER EAST...EFFECTIVE OUTFLOW BOUNDARY
   ATTENDANT TO A BAND OF STORMS MOVING THROUGH SRN NEW ENGLAND TO PA
   SHOULD BE THE PRIMARY FOCUS FOR NEW TSTM DEVELOPMENT INTO THIS
   AFTERNOON.