MESOSCALE DISCUSSION 0705
   NWS STORM PREDICTION CENTER NORMAN OK
   0504 PM CDT SUN MAY 19 2013
   
   AREAS AFFECTED...MN / WRN WI / NRN IA
   
   CONCERNING...TORNADO WATCH 180...
   
   VALID 192204Z - 192300Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 180 CONTINUES.
   
   SUMMARY...THE THREAT FOR LARGE HAIL...DAMAGING WINDS...AND A TORNADO
   OR TWO CONTINUES.  THIS THREAT MAY DEVELOP TO THE NORTH OF THE WATCH
   AREA BY 23Z...POSSIBLY REQUIRING AN ADDITIONAL WW.
   
   DISCUSSION...AS OF 2150Z...REGIONAL RADAR DATA SHOWED AN ARCING BAND
   OF TSTMS FROM SCOTT AND DAKOTA COUNTIES IN E-CNTRL MN TO MITCHELL
   COUNTY IA WITH THIS ACTIVITY WELL CORRELATED WITH A MIDLEVEL
   VORTICITY MAXIMUM AND A NW-SE ORIENTED SFC CONFLUENCE AXIS.  LATEST
   MODEL GUIDANCE INDICATES THAT A 50-70 KT MIDLEVEL JET STREAK WILL
   DEVELOP NWD THROUGH WRN WI THIS EVENING...IN CONJUNCTION WITH
   STRENGTHENING SLY FLOW IN THE 850-700-MB LAYER.  THIS WILL ENHANCE
   VERTICAL SHEAR AND THE NWD FLUX OF AN INCREASINGLY MOIST AND
   UNSTABLE AIR MASS.  AS SUCH...EXPECT THE SEVERE WEATHER THREAT TO
   CONTINUE WITH THE PRIMARY HAZARDS BEING DAMAGING WINDS AND A FEW
   TORNADOES.
   
   ..MEAD.. 05/19/2013
   
   
   ATTN...WFO...DVN...DLH...ARX...MPX...DMX...FGF...FSD...ABR...
   
   LAT...LON   42149428 42709522 43979612 45189669 45999632 46639485
               46489242 45389122 43469089 42489060 42159124 42149428