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ZCZC SPCPWOSPC ALL
WOUS40 KWNS 140915
MNZ000-WIZ000-141800-
PUBLIC SEVERE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0415 AM CDT WED JUL 14 2010
...SEVERE THUNDERSTORMS EXPECTED OVER PARTS OF THE UPPER MISSISSIPPI
VALLEY THIS AFTERNOON AND TONIGHT...
THE NWS STORM PREDICTION CENTER IN NORMAN OK IS FORECASTING THE
DEVELOPMENT OF TORNADOES...LARGE HAIL AND DAMAGING WINDS OVER PARTS
OF THE UPPER MISSISSIPPI VALLEY THIS AFTERNOON AND TONIGHT.
THE AREAS MOST LIKELY TO EXPERIENCE THIS ACTIVITY INCLUDE
CENTRAL AND EASTERN MINNESOTA
WESTERN AND NORTHERN WISCONSIN
SURROUNDING THE AREA OF GREATEST RISK...SEVERE STORMS ARE ALSO
POSSIBLE FROM THE CENTRAL HIGH PLAINS AND LOWER MISSOURI VALLEY TO
THE UPPER GREAT LAKES.
A STRONG JET STREAM DISTURBANCE NOW OVER MONTANA AND WYOMING WILL
MOVE EAST-NORTHEAST ACROSS THE DAKOTAS LATER TODAY...AND ACROSS
MINNESOTA AND SOUTHERN ONTARIO TONIGHT AND EARLY THURSDAY.
AT THE SAME TIME...A SURFACE LOW ASSOCIATED WITH THE
DISTURBANCE...NOW CENTERED OVER NORTHEAST SOUTH DAKOTA...WILL TRACK
NORTHEAST INTO CENTRAL MINNESOTA THIS AFTERNOON...BEFORE CONTINUING
NORTHEAST ACROSS LAKE SUPERIOR THIS EVENING.
A BROAD CURRENT OF WARM AND VERY HUMID AIR WILL MOVE NORTH ACROSS
MUCH OF MINNESOTA AND WISCONSIN TODAY...ON THE EASTERN SIDE OF THE
LOW. AS DAYTIME HEATING OCCURS WITHIN THIS FLOW...AND THE JET
STREAM WINDS STRENGTHEN ALOFT...CONDITIONS WILL BECOME FAVORABLE FOR
THE DEVELOPMENT OF LONG-LIVED ROTATING THUNDERSTORMS CALLED
SUPERCELLS.
WHILE SOME SEVERE STORMS MAY OCCUR ANYTIME BETWEEN NOW AND EARLY
THURSDAY FROM PARTS OF THE CENTRAL PLAINS TO THE UPPER GREAT
LAKES...THE GREATEST RISK OF SEVERE WEATHER LIKELY WILL DEVELOP THIS
AFTERNOON THROUGH LATE TONIGHT ACROSS FROM CENTRAL AND EASTERN
MINNESOTA INTO WESTERN AND NORTHERN WISCONSIN. THESE STORMS WILL
HAVE THE POTENTIAL TO PRODUCE STRONG TORNADOES...IN ADDITION TO
SWATHS OF VERY DAMAGING WIND AND LARGE HAIL.
STATE AND LOCAL EMERGENCY MANAGERS ARE MONITORING THIS DEVELOPING
SITUATION. THOSE IN THE THREATENED AREA ARE URGED TO REVIEW SEVERE
WEATHER SAFETY RULES AND TO LISTEN TO RADIO...TELEVISION...AND NOAA
WEATHER RADIO FOR POSSIBLE WATCHES...WARNINGS...AND STATEMENTS LATER
TODAY.
..CORFIDI.. 07/14/2010
$$
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