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MESOSCALE DISCUSSION 1607
NWS STORM PREDICTION CENTER NORMAN OK
0732 PM CDT FRI JUL 17 2009
AREAS AFFECTED...EASTERN CO/FAR WESTERN KS
CONCERNING...TORNADO WATCH 596...598...
VALID 180032Z - 180130Z
THE SEVERE WEATHER THREAT FOR TORNADO WATCH 596...598...CONTINUES.
TORNADO WATCH 598 CONTINUES UNTIL 03Z. TORNADO WATCH 596 IS
SCHEDULED TO EXPIRE AT 01Z...AND SOME CONSIDERATION FOR A NEW
WATCH/LOCAL WFO EXTENSION COULD BE NEEDED FOR NORTHEAST CO/PERHAPS
FAR WESTERN KS.
MUCH OF NORTHEAST CO INTO THE NEB PANHANDLE APPEARS TO BE
CONVECTIVELY OVERTURNED/STABILIZED FROM PRIOR CONVECTION/OUTFLOWS.
HOWEVER A SEVERE HAIL/POSSIBLE TORNADO THREAT COULD CONTINUE BEYOND
01Z ACROSS FAR NORTHEAST CO AND PERHAPS EVEN ADJACENT WESTERN KS AS
STORMS CONTINUE TO DEVELOP GENERALLY SOUTHWARD AMIDST A STRONGLY
SHEARED ENVIRONMENT BENEATH NORTHWESTERLY FLOW ALOFT.
OTHERWISE...PRIMARY LARGE HAIL/ISOLATED TORNADO THREAT WILL CONTINUE
ACROSS WW 598 IN SOUTHEAST CO...CHIEFLY WITH A
LONG-LIVED/SOUTHWESTWARD MOVING SUPERCELL CROSSING THE ARKANSAS
RIVER VALLEY NEAR/WEST OF LAMAR AS OF 0015Z.
..GUYER.. 07/18/2009
ATTN...WFO...LBF...DDC...GLD...PUB...BOU...CYS...
LAT...LON 41540350 41370255 40120154 38800139 37220250 37520411
39580352 40770409 41540350
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