On June 28, a strong short wave trough moved across Southwest Montana during the afternoon and evening hours. Isolated severe thunderstorms produced several severe downbursts.
Every event with a place to put it. Tap one for its entry below.
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.
On June 28, a strong short wave trough moved across Southwest Montana during the afternoon and evening hours. Isolated severe thunderstorms produced several severe downbursts.
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 28, 1:14 PM MST, 3 hours 37 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MISSOULA MT 214 PM MDT THU JUN 28 2007 .DISCUSSION...TONIGHT THROUGH FRIDAY NIGHT...LITTLE RELIEF FROM THE HEAT IS EXPECTED AS SOUTHWEST FLOW WILL CONTINUE TO KEEP TEMPERATURES FROM LOWERING TOO MUCH TONIGHT. MANY AREAS MAY BREAK RECORD HIGH MINIMUM TEMPERATURE TONIGHT DUE TO THE WARM NIGHT. SOME RELIEF IS EXPECTED TOMORROW AS A COLD FRONT MOVES THROUGH THE AREA. LITTLE PRECIPITATION IS EXPECTED WITH THIS FRONT...BUT IT MAY HELP DEVELOP THUNDERSTORMS TOMORROW AFTERNOON AND OVERNIGHT. GREATEST THREAT FOR THUNDERSTORMS WILL BE OVER NORTHWEST MONTANA WHERE BEST MOISTURE IS LOCATED. THUNDERSTORMS AS WELL AS A STRONG SURFACE PRESSURE GRADIENT SHOULD BRING WINDY CONDITIONS TO MANY AREAS FRIDAY AFTERNOON. WINDS SHOULD TAPER OFF FRIDAY NIGHT AS SURFACE GRADIENT AND VERTICAL MIXING WEAKEN. SATURDAY WILL STILL BE UNDER THE INFLUENCE OF UPPER LEVEL SOUTHWEST FLOW WITH SOME LINGERING MOISTURE FROM FRIDAYS SYSTEM. THREAT OF SHOWERS AND THUNDERSTORMS WILL LINGER...MAINLY ACROSS THE SOUTH WHERE A STALLED SURFACE BOUNDARY REMAINS. SUNDAY THROUGH THE REMAINDER OF THE WEEK WILL TRANSITION TO AN UNSEASONABLY HIGH UPPER LEVEL RIDGE DEVELOPING OVER THE WESTERN UNITED STATES. IF THE MODELS VERIFY...THE HEIGHTS AND SUBSEQUENT TEMPERATURES THEIR PREDICTING WOULD BE THE HIGHEST SEEN IN THE LAST 6O PLUS YEARS. AT THIS TIME...TEMPERATURES ARE FORECAST 10 TO 12 DEGREES (MAINLY IN THE 90S) ABOVE NORMAL. WILL CONTINUE TO MONITOR LATTER RUNS AND ADJUST UPWARD IF NECESSARY && .AVIATION...NO SIGNIFICANT WEATHER IMPACT TO AVIATION EXPECTED TONIGHT...THERE IS AN INCREASED CHANCE OF SOME AFTERNOON THUNDERSTORMS ON FRIDAY...PLEASE SEE APPROPRIATE TAFS AND TWEBS. && .MSO WATCHES/WARNINGS/ADVISORIES... MT...NONE. ID...NONE. && SHORT TERM...STEGEMILLER LONG TERM....MEAD AVIATION...KOLATA
The Missoula radar (KMSX), 50 km away, was scanning. The volume nearest the first event began at 23:51 UTC.
6 thunderstorm wind. Local standard time, as filed.
Several reports of estimated wind gusts to 60 mph from weather spotters and the public were reported.
Estimated wind gusts to 60 mph blew down a large tree down onto the deck of the house and also knocked down powerlines.
Public reported an estimated wind gust to 60 mph.
Public reported wind gusts estimated at 60 mph. Several large tree brnaches were broken off trees in the area.
Large tree was blown over onto the deck of a home. The tree also knocked down several powerlines as well.
The utility company reported that several trees were blown down onto powerlines along US Highway 93 between Florence and Stevensville.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Montana in 2007Every state in 2007This day in weather historyWarnings in Montana, June 2007
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: 38336, 38330, 38501, 38504, 38498, 38507.