SWOMCD
SPC MCD 101502
IAZ000-MNZ000-NEZ000-SDZ000-101630-
MESOSCALE DISCUSSION 0879
NWS STORM PREDICTION CENTER NORMAN OK
1002 AM CDT THU JUN 10 2010
AREAS AFFECTED...ERN NEB...IA
CONCERNING...SEVERE THUNDERSTORM WATCH 290...291...
VALID 101502Z - 101630Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
290...291...CONTINUES.
THE NEED FOR ADDITIONAL WATCHES AT 16/19Z EXPIRATION OF WWS 290/291
IS NOT CURRENTLY ANTICIPATED.
DOWNSTREAM OF THE SIGNIFICANT SHORT WAVE TROUGH TURNING EASTWARD
INTO THE GREAT BASIN....MID-LEVEL HEIGHTS APPEAR LIKELY TO RISE INTO
AND THROUGH THE MID DAY HOURS ACROSS THE CENTRAL AND NORTHERN
PLAINS. THE SOUTHERLY LOW-LEVEL JET IS EXPECTED TO REMAIN NEARLY
STATIONARY ACROSS THE PLAINS...THOUGH WEAKENING IS PROGGED ACROSS
THE CENTRAL PLAINS INTO THE MID MISSOURI VALLEY...WITH PERHAPS SOME
STRENGTHENING FARTHER TO THE NORTH...ACROSS PARTS OF THE EASTERN
DAKOTAS/WESTERN MINNESOTA. GUIDANCE IS SUGGESTIVE THAT THIS WILL
OCCUR AS A WEAK MID-LEVEL IMPULSE PROGRESSES EAST/NORTHEAST OF THE
MIDDLE MISSOURI VALLEY. IN RESPONSE...THE LARGE ONGOING MESOSCALE
CONVECTIVE SYSTEM IS EXPECTED TO WEAKEN...AND THIS IS SUPPORTED BY
GENERAL CURRENT TRENDS IN SATELLITE AND RADAR IMAGERY.
WIND GUSTS AT LEAST APPROACHING SEVERE LIMITS MAY REMAIN POSSIBLE
ANOTHER COUPLE OF HOURS NEAR AND EAST/SOUTHEAST OF THE OMAHA AREA
INTO SOUTHWEST IOWA. OTHERWISE...LOCALLY EXCESSIVE RAINFALL IS
PROBABLY THE PRIMARY THREAT WITH PERSISTENT/TRAINING CONVECTIVE
CELLS.
..KERR.. 06/10/2010
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...DVN...ARX...MPX...DMX...FSD...OAX...GID...LBF...
LAT...LON 43249918 43199774 43339656 43619580 43449270 42469132
41109179 40599465 40699616 40709738 41629877 43249918
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