Montana Department of Transportation

Main Content

Accidents and Incidents Report

Special Weather Statement

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Note:  Be sure to pay close attention to the date and time of each warning.    
This document contains all warnings in the state so please read the
complete document.
 
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WWUS85 KBYZ 250112
SPSBYZ

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BILLINGS MT
712 PM MDT SUN MAY 24 2015
 
MTZ034-035-039-250215-
EASTERN CARBON MT-YELLOWSTONE MT-NORTHERN STILLWATER MT-
712 PM MDT SUN MAY 24 2015

...COLD AIR FUNNEL CLOUDS WEST OF BILLINGS...

AT 707 PM MDT...THE PUBLIC HAS REPORTED COLD AIR FUNNEL CLOUDS 
DEVELOPING ABOUT 5 MILES WEST OF BILLINGS. THE ASSOCIATED 
SHOWERS ARE MOVING SOUTHWEST AT 20 MPH.  
 
COLD AIR FUNNELS FORM IN COOL MOIST CONDITIONS. THEY ARE TYPICALLY 
WEAK...BRIEF AND RARELY TOUCHDOWN. HOWEVER...IF YOU ARE NEAR THESE 
SHOWERS IT WOULD BE PRUDENT TO SEEK COVER.  
 
LOCATIONS IMPACTED INCLUDE...RURAL AREAS WEST OF BILLINGS...  
LAUREL...PARK CITY AND MOLT. 

LAT...LON 4599 10882 4578 10862 4550 10899 4579 10932
TIME...MOT...LOC 0107Z 051DEG 19KT 4583 10883 

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TESAR


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WWUS85 KMSO 252141
SPSMSO

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MISSOULA MT
241 PM PDT MON MAY 25 2015
 
IDZ007-008-252230-
OROFINO/GRANGEVILLE REGION ID-
LOWER HELLS CANYON/SALMON RIVER REGION ID-
241 PM PDT MON MAY 25 2015

...SIGNIFICANT WEATHER ADVISORY FOR WEST CENTRAL IDAHO COUNTY UNTIL
330 PM PDT...

AT 239 PM PDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 7
MILES NORTH OF WHITE BIRD...OR 11 MILES WEST OF GRANGEVILLE...MOVING
NORTH TO NORTHEAST AT 10 MPH.

HEAVY RAIN...HALF INCH HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE 
POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
GRANGEVILLE...COTTONWOOD...CANFIELD AND FENN. 

LAT...LON 4581 11637 4588 11652 4608 11639 4593 11607
TIME...MOT...LOC 2139Z 227DEG 9KT 4587 11635 

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