Strong cold front moved through Lemhi County during the late afternoon hours producing gusty southwest winds of 50 to 60 mph at the higher elevations.
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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.
Strong cold front moved through Lemhi County during the late afternoon hours producing gusty southwest winds of 50 to 60 mph at the higher elevations.
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 Jul 16, 12:30 PM MST, 2 hours 58 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MISSOULA MT 130 PM MDT SAT JUL 16 2005 .SHORT TERM...TONIGHT THROUGH MONDAY...COLD FRONT DROPPING SOUTHEASTWARD SLOWED DOWN MIDDAY...BUT IS EXPECTED TO SPEED UP AS UPPER LEVEL WEATHER DISTURBANCE FROM WASHINGTON STATE/B.C BORDER KICKS THROUGH. THIS DISTURBANCE WILL ALSO HELP FIRE THUNDERSTORMS WITH SHOWERS LATE THIS AFTERNOON AND EARLY EVENING. MAIN THREAT CONTINUES TO BE STRONG GUSTY WINDS...THROUGH HAIL AND BRIEF HEAVY RAIN WITH STORMS ARE POSSIBLE. ACTIVITY SHOULD DIMINISH IN WAKE OF UPPER DISTURBANCE AND FRONT...SO LAKE WIND ADVISORY TO CONTINUE ONLY UNTIL EARLY EVENING AS WIND FLOW TURNS MORE WESTERLY AND WEAKENS. HIGH PRESSURE TRIES TO BUILD FOR SUNDAY...BUT MAY BE KNOCKED DOWN BY JETSTREAM MOVING INTO THE CANDADIAN COAST WITH UPSLOPE NORTHWEST FLOW CONTINUING INTO NORTHWEST MONTANA...SO WILL KEEP SLIGHT CHANCES OF SHOWERS. OTHERWISE WARMING AND DRYING TREND FOR THE REMAINDER OF THE SHORT TERM. .LONG TERM...MONDAY NIGHT THROUGH SATURDAY...THE INLAND NORTHWEST WILL BE BETWEEN A SERIES OF LOW PRESSURE SYSTEMS THAT WILL PASS THROUGH WESTERN CANADA AND A RELATIVELY STATIONARY HIGH PRESSURE SYSTEM OVER THE SOUTHWEST THROUGH THE LONG TERM. MOST OF CENTRAL IDAHO AND WESTERN MONTANA WILL HAVE DRY CONDITIONS AND WARMER THAN NORMAL TEMPERATURES THROUGH NEXT WEEK. COULD SEE SOME MAINLY MOUNTAIN SHOWERS OVER NORTHWEST MONTANA NEXT FRIDAY AND SATURDAY AS A LOW PRESSURE SYSTEM TRACKS OVER WESTERN CANADA AND AN ASSOCIATED COLD FRONT MAKES ITS WAY THROUGH THE NORTHWEST. COULD ALSO SEE SHOWERS AND THUNDERSTORMS BEGINNING THURSDAY MAINLY OVER THE MOUNTAINS OF LEMHI COUNTY AS THE HIGH PRESSURE SYSTEM TRAINS WARM AND MOIST SOUTHWEST FLOW OVER THE AREA AHEAD OF THE FRONT. && .AVIATION...GUSTY SURFACE WINDS HAVE DEVELOPED OVER WESTERN MONTANA AND CENTRAL IDAHO AS CONVECTION AT LOWER LEVELS HAS MIXED DOWN STRONG UPPER LEVEL WINDS. IFR CONDITIONS HAVE BEEN REPORTED OVER THE AREA UNDER THUNDERSTORMS...MAINLY MOUNTAINS. FLIGHT CONDITIONS SHOULD RETURN TO VFR AND WINDS WILL CALM OVER THE AREA AFTER SUNDOWN WHEN SHOWER ACTIVITY DIMINISHES. && .MSO WATCHES/WARNINGS/ADVISORIES... MT...LAKE WIND ADVISORY UNTIL 6 PM SATURDAY FOR MTZ003. ID...NONE. && SHORT TERM...SIGLER LONG TERM....STEGEMILLER AVIATION...STEGEMILLER
The national radar mosaic for the moment the first event began.
2 high wind. Local standard time, as filed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Idaho in 2005Every state in 2005This day in weather historyWarnings in Idaho, July 2005
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: 5464962, 5464963.