Forecast news: ‘Atmospheric River’ to hit California this weekend, Colorado to stay warm and dry #CODrought

West Coast gets drenched & flooding concerns in Northern CA, while CO stays unseasonably warm & dry thru weekend. #COwx pic.twitter.com/RgfRiRvu

— NWS Boulder (@NWSBoulder) November 27, 2012

Repeat warning. Atmospheric river heading for West Coast. Here's a gif image: http://t.co/pFAGZxC8. Expect very heavy rains; flooding risk

— Peter Gleick 🇺🇸 (@PeterGleick) November 27, 2012

Here’s the link to the NOAA model animation.

Here’s the lowdown on atmospheric rivers via the NOAA and YouTube (2 minutes or so).