

144 

WWUS20 KWNS 050019

SEL8

SPC WW 050019

MNZ000-NDZ000-WIZ000-LSZ000-050700-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 598

NWS STORM PREDICTION CENTER NORMAN OK

715 PM CDT MON JUL 4 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       NORTHERN AND CENTRAL MINNESOTA

       EASTERN NORTH DAKOTA

       NORTHWEST WISCONSIN

       LAKE SUPERIOR



EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 715 PM UNTIL

200 AM CDT.



HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70

MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 150

STATUTE MILES EAST AND WEST OF A LINE FROM 60 MILES NORTH OF ELY

MINNESOTA TO 65 MILES SOUTH OF DETROIT LAKES MINNESOTA.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU8).



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 595...WW 596...WW 597...



DISCUSSION...SMALL TSTM COMPLEX NOW IN NW MN EXPECTED TO MOVE

GENERALLY ESE THROUGH LATE TNGT...WITH ADDITIONAL DEVELOPMENT

POSSIBLE SSWWD ALONG CONFLUENCE LINE OVER NW AND W CNTRL MN /I.E.

AREA BETWEEN FAR AND AXN/.  OTHER STORMS MAY FORM SWWD ALONG COLD

FRONT ACROSS SE ND.  ACTIVITY WILL BE FED BY MODERATELY STRONG/MOIST

WSWLY LLJ BENEATH STRENGTHENING WNW TO NW MID/UPR LVL FLOW.  AS

SUCH...POTENTIAL WILL EXIST FOR ADDITIONAL SUPERCELLS/BOWING

SEGMENTS WITH DMGG WIND...LARGE HAIL...AND POSSIBLY A TORNADO.

FARTHER E...MORE ISOLD STORMS/SUPERCELLS MAY MOVE SE ACROSS THE ERN

PART OF THE MN ARROWHEAD...ALONG WARM FRONT EXTENDING SEWD FROM WRN

ONT ACROSS LS AND UPR MI.



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 550. MEAN STORM

MOTION VECTOR 30025.





...CORFIDI

