231  
WUUS55 KGGW 110150  
SVRGGW  
MTC033-055-069-071-105-110245-  
/O.NEW.KGGW.SV.W.0003.250511T0150Z-250511T0245Z/  
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED  
SEVERE THUNDERSTORM WARNING  
NATIONAL WEATHER SERVICE GLASGOW MT  
750 PM MDT SAT MAY 10 2025  
 
THE NATIONAL WEATHER SERVICE IN GLASGOW HAS ISSUED A  
 
* SEVERE THUNDERSTORM WARNING FOR...  
CENTRAL PHILLIPS COUNTY IN NORTHEASTERN MONTANA...  
PETROLEUM COUNTY IN NORTHEASTERN MONTANA...  
WESTERN GARFIELD COUNTY IN NORTHEASTERN MONTANA...  
VALLEY COUNTY IN NORTHEASTERN MONTANA...  
NORTHWESTERN MCCONE COUNTY IN NORTHEASTERN MONTANA...  
 
* UNTIL 845 PM MDT.  
 
* AT 750 PM MDT, SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE  
EXTENDING FROM 35 MILES NORTHEAST OF PORT OF MORGAN TO 9 MILES  
NORTH OF HINSDALE TO 20 MILES NORTHEAST OF DEVILS CREEK REC AREA TO  
12 MILES EAST OF FLATWILLOW, MOVING NORTHEAST AT 65 MPH.  
 
HAZARD...60 MPH WIND GUSTS.  
 
SOURCE...PUBLIC.  
 
IMPACT...EXPECT DAMAGE TO ROOFS, SIDING, AND TREES.  
 
* LOCATIONS IMPACTED INCLUDE...  
SAND SPRINGS, VANDALIA, FOURCHETTE, U L BEND REC AREA, PARK GROVE,  
THE BENTONITE PLANT, DUCK CREEK REC AREA, GLASGOW, FRENCHMAN  
RESERVOIR, OPHEIM, NASHUA, HELL CREEK REC AREA, SUN PRAIRIE,  
BOWDOIN, ST. MARIE, BRUSETT, WINNETT, THE PINES REC AREA, PETROLIA  
LAKE, AND TAMPICO.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A  
BUILDING.  
 

 
 
LAT...LON 4900 10615 4802 10626 4712 10724 4675 10838  
4675 10863 4710 10861 4710 10874 4727 10872  
4732 10831 4758 10831 4762 10867 4770 10881  
4833 10772 4900 10745  
TIME...MOT...LOC 0150Z 244DEG 56KT 4927 10717 4853 10709 4784 10735  
4678 10815  
 
HAIL THREAT...RADAR INDICATED  
MAX HAIL SIZE...<.75 IN  
WIND THREAT...OBSERVED  
MAX WIND GUST...60 MPH  
 

 
 
ZANKER  
 
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