The Whitefish river flooded parts of Kalispell.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS MSO wrote it up.
The Whitefish river flooded parts of Kalispell.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Missoula, MT wrote its last area forecast discussion before the first event at Jun 11, 1:45 PM MST, 5 hours 15 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MISSOULA MT 245 PM MDT SAT JUN 11 2011 .DISCUSSION...A SLOW MOVING UPPER LEVEL TROUGH WILL IMPACT NORTH CENTRAL IDAHO AND WESTERN MONTANA THROUGH SUNDAY. UNSTABLE CONDITIONS AHEAD OF THE TROUGH IS HELPING TO SET OFF WIDESPREAD SHOWERS AND ISOLATED THUNDERSTORMS THIS AFTERNOON. THE FLOW ALOFT IS NOT VERY STRONG SO MAIN THREATS FROM THESE SHOWERS ARE BRIEF HEAVY RAIN AND SMALL HAIL. THE MODELS ARE INDICATING A WAVE IN THE SOUTHWEST FLOW ALOFT WILL SHIFT THE FOCUS OF SHOWERS TO WEST CENTRAL AND SOUTHWEST MONTANA...MAINLY FROM A LOLO PASS...MISSOULA TO SEELEY LAKE LINE AND POINTS SOUTHWEST. WITH AMPLE CLOUDS TONIGHT...TEMPERATURES WILL BE VERY SIMILAR TO SATURDAY MORNINGS READINGS. SUNDAY THE UPPER TROUGH WILL BE RIGHT OVER THE INTERMOUNTAIN REGION...SO ANOTHER SHOWERY/COOL DAY IS EXPECTED...WITH THE MOST COVERAGE OF SHOWERS IN THE AFTERNOON/EARLY EVENING HOURS. A WEAK RIDGE WILL BUILD OVER THE REGION SUNDAY EVENING AS THE TROUGH EXITS EAST OF THE DIVIDE. THIS WILL PROVIDE CLEARING FROM WEST TO EAST WITH TEMPERATURES BELOW AVERAGE. A PROGRESSIVE WESTERLY FLOW WILL PERSIST THROUGH NEXT WEEK. THIS WILL BE CHARACTERIZED BY FAST MOVING WEATHER SYSTEMS AND GENERALLY BELOW NORMAL TEMPERATURES. THE FAST MOVING NATURE OF THE SYSTEMS MEANS THEY WILL NOT DROP SIGNIFICANT AMOUNTS OF PRECIPITATION...AT LEAST TO THE EXTENT THAT WOULD NOTICEABLY INFLUENCE THE HIGH RUNOFF. THE COOLER PATTERN WILL ALSO KEEP SNOWMELT SOMEWHAT IN CHECK. SO EXPECT MOST STREAM FLOWS TO VERY SLOWLY COME DOWN THROUGH THE PERIOD. && .AVIATION...WIDESPREAD SHOWERS AND ISOLATED THUNDERSTORMS WILL IMPACT NORTH CENTRAL IDAHO AND WESTERN MONTANA AIRFIELDS THROUGH EARLY THIS EVENING AS A SLOW MOVING UPPER LEVEL TROUGH MOVES INTO THE REGION TONIGHT THROUGH SUNDAY. AFTER SUNSET...THE FOCUS WILL SHIFT TO WESTERN/SOUTHWEST MONTANA OVERNIGHT AS AN UPPER LEVEL WAVE MOVES THROUGH. AS THE COLD AIR ALOFT ASSOCIATED WITH THE BASE OF THE TROUGH MOVES OVERHEAD SUNDAY...MORE SHOWERS WILL DEVELOP ACROSS THE REGION. && NOTE: FLOOD WATCHES...WARNINGS AND ADVISORIES WILL NOT BE LISTED BELOW. .MSO WATCHES/WARNINGS/ADVISORIES... MT...NONE. ID...NONE. && SHORT TERM...MEAD LONG TERM....WHITMORE AVIATION...MEAD
The national radar mosaic for the moment the first event began.
1 flood. Local standard time, as filed.
The Whitefish River flooded the backyards of four homes and to the base of the foundation of one home in the city of Kalispell.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Montana in 2011Every state in 2011This day in weather historyWarnings in Montana, June 2011
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 322692.