Contrails crisscross skies over Bay Area
SAN FRANCISCO (KGO) -- If you're wondering what caused those strange streaks that appeared in the sky over the Bay Area Tuesday afternoon, there's a simple meteorological explanation.
The streaks could be seen from San Francisco to Martinez, running across the sky, crisscrossing and making unusual patterns.
They're actually contrails of the same airplanes that fly overhead every day. They usually disappear soon, but the combination of cool air and moisture made them last longer, enough to form patterns.
airline industry, accuweather
- Man suspected of shooting SF police officer arrested
- East Bay residents warned after EBMUD truck stolen
- State oversight may tame California pot shops
- Wolff: Temporary baseball stadium for A's possible
- All lanes of I-880 in Oakland cleared after fatal crash
- All lanes clear on I-80 in Vacaville after fatal crash
- Teenage boy killed trying to walk across Highway 85
- Tucson courting car maker Tesla for 6,500 jobs
- Gov. Brown booed by anti-fracking protesters
- Toddler uses FaceTime to save mom after dog attack
- '300' sequel rules box office with $45.1M debut
- Thousands audition for Wheel of Fortune in NorCal
- weather: Bay Area weather forecast for Monday
- roundup: Fatal bar shooting; Utility truck thefts
Most Viewed StoriesMost Viewed Photos