734  
WWUS55 KMSO 012356  
SQWMSO  
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED  
SNOW SQUALL WARNING  
NATIONAL WEATHER SERVICE MISSOULA MT  
456 PM MST THU DEC 1 2022  
 
MTC093-020015-  
/O.NEW.KMSO.SQ.W.0022.221201T2356Z-221202T0015Z/  
SILVER BOW MT-  
456 PM MST THU DEC 1 2022  
 
THE NATIONAL WEATHER SERVICE IN MISSOULA HAS ISSUED A  
 
* SNOW SQUALL WARNING FOR...  
SOUTHEASTERN SILVER BOW COUNTY IN WEST CENTRAL MONTANA...  
 
* UNTIL 515 PM MST.  
 
* AT 455 PM MST, A DANGEROUS SNOW SQUALL WAS LOCATED ALONG A LINE  
EXTENDING FROM NEAR BASIN TO NEAR DIVIDE, MOVING EAST AT 10 MPH.  
 
HAZARD...WHITEOUT CONDITIONS WITH NEAR ZERO VISIBILITY ASSOCIATED  
WITH INTENSE BURSTS OF HEAVY SNOW AND GUSTY WINDS LEADING  
TO BLOWING SNOW. WIND GUSTS UP TO 35 MPH.  
 
SOURCE...RADAR AND TRAINED SPOTTER.  
 
IMPACT...TRAVEL WILL BECOME DIFFICULT AND POTENTIALLY DANGEROUS  
WITHIN MINUTES.  
 
LOCATIONS IMPACTED INCLUDE...  
I-15 SOUTH OF BUTTE, I-90 HOMESTAKE PASS AND DIVIDE.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
SLOW DOWN! RAPID CHANGES IN VISIBILITY AND ROAD CONDITIONS ARE  
EXPECTED WITH THIS DANGEROUS SNOW SQUALL. BE ALERT FOR SUDDEN  
WHITEOUT CONDITIONS.  
 

 
 
LAT...LON 4576 11222 4576 11250 4569 11255 4563 11268  
4567 11270 4568 11272 4572 11275 4574 11276  
4576 11279 4592 11242 4589 11240 4585 11243  
4579 11227 4577 11226  
TIME...MOT...LOC 2355Z 273DEG 8KT 4630 11217 4571 11285  
 
SNOW SQUALL...OBSERVED  
 

 
 
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