SPC MESOSCALE DISCUSSION #0688 FOR NERN OK
CONCERNING...HEAVY RAINFALL...

VALID 061046Z - 061400Z

POTENTIALLY SIGNIFICANT HEAVY RAIN EVENT SHOULD SPREAD SEWD ACROSS
TULSA AND CREEK COUNTIES INTO WAGONER..MUSKOGEE...OKMULGEE AND
MCINTOSH COUNTIES THROUGH 15Z.  

THIS IS WHEN LATEST RUC GUIDANCE SHIFTS NOSE OF 50 KT LLJ /AS
EVIDENCED BY VWP AT KTLK/ NEWD INTO SWRN MO.  STORM MOTION/CORFIDI
VECTORS INDICATE ONGOING ACTIVITY WILL MAINTAIN A SLOW SEWD
MOVEMENT THROUGH THE REST OF THE EARLY MORNING...THOUGH ENTIRE AREA
OF RAIN SHOULD SHIFT NEWD ALONG NOSE OF LLJ BY 15Z.  STRONG INFLOW
OF MOIST AIR MASS /PW OF OVER 180 PERCENT OF NORMAL AT OUN THIS
EVENING/ INTO THIS AREA SUGGESTS STORMS WILL CONTINUE TO PRODUCE
HEAVY RAINFALL RATES ON THE ORDER OF 2-3 INCHES AN HOUR.

..EVANS.. 05/06/00