675
FGUS75 KMSO 281951
ESFMSO
MTC023-029-039-047-063-077-081-093-291800-
HYDROLOGIC OUTLOOK
NATIONAL WEATHER SERVICE MISSOULA MT
151 PM MDT THU MAY 28 2026
WHAT: WIDESPREAD MODERATE TO HEAVY PRECIPITATION
WHERE: WESTERN MONTANA COUNTIES: FLATHEAD, LAKE, MISSOULA, POWELL,
GRANITE, RAVALLI, DEER LODGE, AND SILVER BOW
TIMING: SATURDAY MAY 30 THROUGH MONDAY JUNE 1, 2026
RELEVANT FACTORS:
TOTAL PRECIPITATION AMOUNTS OF 1 TO 3 INCHES WITH LOCALLY
HIGHER AMOUNTS POSSIBLE IN HIGHER TERRAIN ALONG THE DIVIDE.
ONGOING SNOWMELT AND RECENT PRECIPITATION HAS KEPT STREAM AND
RIVER LEVELS RISING. ANTICIPATE FURTHER RISES IN LOCAL
WATERWAYS, ROCKFALL AND MUDSLIDE POTENTIAL IN STEEP TERRAIN,
AS WELL AS POSSIBLE URBAN AND LOW-LAND FLOODING.
THE CLARK FORK RIVER NEAR MISSOULA IS CURRENTLY FORECAST TO REACH
NEAR 8 FEET BY MONDAY AFTERNOON, JUNE 1.
THE FLATHEAD RIVER NEAR COLUMBIA FALLS IS CURRENTLY FORECAST TO
REACH NEAR 14 FEET BY TUESDAY NIGHT, JUNE 2.
ADDITIONAL INFORMATION WILL BE PROVIDED AT OR BEFORE NOON MDT ON MAY
29TH.
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