48-hour migraine risk based on barometric pressure, humidity, and temperature changes in Missoula.
Missoula's mountain valley location in western Montana traps inversions and creates unique pressure patterns. Pacific weather systems funnel through mountain passes, and winter temperature inversions can keep the valley socked in under persistent low pressure.
Worst season for migraines: November through March and July through September. Missoula's mountain valley geography creates two distinct trigger seasons. Winter brings Pacific storms that funnel through the Clark Fork and Bitterroot valleys, while summer brings wildfire smoke that can fill the valley bowl for weeks, creating hazardous air quality.
Common triggers in Missoula: wildfire smoke inversions trapping hazardous air in the valley, Chinook wind events from the surrounding mountains, Pacific storm fronts channeled through mountain passes. Missoula sits at 3,200 feet at the convergence of five mountain valleys where the Clark Fork, Bitterroot, and Blackfoot rivers meet. This valley-bottom geography makes Missoula notoriously prone to temperature inversions that trap cold air and, during fire season, wildfire smoke that can push air quality into hazardous levels for weeks. The surrounding mountains rise 4,000+ feet above the valley floor, creating dramatic terrain-influenced weather patterns.
Typical pressure: Missoula averages 948 hPa at rest, but storm systems can push readings down to 935 hPa. Swings of 10-16 hPa over 24 hours are common during active weather and fall within the range most associated with pressure-triggered migraines.
Can Missoula weather trigger migraines?
Yes. Missoula experiences 10-16 hPa barometric pressure swings, and research shows pressure drops are one of the most common migraine triggers. The city's specific patterns include wildfire smoke inversions trapping hazardous air in the valley, Chinook wind events from the surrounding mountains, Pacific storm fronts channeled through mountain passes.
What time of year are migraines worst in Missoula?
Migraine sufferers in Missoula typically report the highest attack frequency during November through March and July through September. This aligns with the period of greatest barometric volatility in the region.
How do I track migraine triggers in Missoula?
Use MigrAid to log your attacks with one tap. The app automatically records barometric pressure, temperature, and humidity at the time of each migraine, then finds patterns between your attacks and Missoula's weather conditions over time.
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