SPC MESOSCALE DISCUSSION 0670 FOR SRN IA...WRN/NRN MO...ERN KS
CONCERNING...SEVERE THUNDERSTORM POTENTIAL...

VALID 061713Z - 061900Z

THUNDERSTORMS WILL DEVELOP NEWD ACROSS ERN KS...INTO NWRN MO AND
SRN IA OVER THE NEXT FEW HOURS.  SEVERE THREAT SHOULD PRIMARILY BE
LARGE HAIL.  SEVERE THUNDERSTORM WATCH MAY BE REQUIRED SHORTLY.

STRONG DIURNAL HEATING ALONG AND WEST OF BOUNDARY THAT STRETCHES
FROM NWRN MO...SWWD INTO SOUTH CENTRAL KS HAS ALLOWED BOUNDARY
LAYER TO BECOME SUFFICIENTLY UNSTABLE FOR CONVECTIVE DEVELOPMENT
ACROSS NERN KS.  RELATIVELY COOL MID-UPPER LEVEL TEMPERATURES...IN
COMBINATION WITH DEEP LAYER SHEAR ON THE ORDER OF 30-35 KT SUGGEST
SEVERE MULTI-CELL UPDRAFTS ARE LIKELY.  DEEP LAYER CONVERGENCE
ALONG BOUNDARY SUGGESTS ACTIVITY MAY EVOLVE INTO LINE OF STORMS AS
CONVECTION DEVELOPS NEWD ACROSS NWRN MO INTO SRN IA.


..DARROW.. 05/06/01