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000
WWUS20 KWNS 190448
SEL8
SPC WW 190448
MNZ000-NDZ000-190900-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 178
NWS STORM PREDICTION CENTER NORMAN OK
1150 PM CDT SAT MAY 18 2013

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
  FAR WESTERN MINNESOTA
  SOUTHEASTERN NORTH DAKOTA

* EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 1150 PM
  UNTIL 400 AM CDT.

* PRIMARY THREATS INCLUDE...
  SEVERAL DAMAGING WIND GUSTS TO 70 MPH POSSIBLE
  SEVERAL LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 55
STATUTE MILES EAST AND WEST OF A LINE FROM 55 MILES NORTHWEST OF
FARGO NORTH DAKOTA TO 70 MILES SOUTH SOUTHWEST OF FARGO NORTH
DAKOTA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED
WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.

&&

OTHER WATCH INFORMATION...CONTINUE...WW 173...WW 174...WW
175...WW 176...WW 177...

DISCUSSION...A FEW STRONG TO SVR TSTMS...MAINLY WITH A THREAT FOR
SVR HAIL...MAY MOVE/DEVELOP ENE INTO WW AREA AS WAA/MOISTURE INFLOW
STRENGTHEN ATOP SHALLOW COOL LAYER IN WAKE OF W-E FRONT NOW MOVING S
INTO NE SD.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 24025.


...CORFIDI