Light rain, sprinkles and showers are making their way across San Diego County.
Grab that umbrella, because the threat of rain will be with us all day long. The main heart of the storm is still off to our west, but some of the moisture is already making its way into San Diego. Most of Tuesday will see light rain and the real rain isn't due to arrive until well after the evening commute -- but when it does, get ready.
A flash flood watch is in effect from Tuesday night through Wednesday. There are actually two storm systems in the area at the same time. And, if the cold storm to our west taps into the warmer, subtropical system to our south we could end up seeing a lot of rain by Thursday.
This week's storm is likely to drop 1/2 inch to 1 inch of rain along the coast, 0.75 to 1.25 inches in the inland valleys, 1.5 to 3 inches in the mountains and about a half-inch in the deserts, the National Weather Service said.
Along with the moisture you can plan on gusty winds and colder than normal temperatures.
The second storm is a little less certain as to its timing. It could move in as early as Friday but likely not until Saturday. This will be a colder storm, originating in the Gulf of Alaska. Not only could it mean bands of heavy rain at times, but could also result in thunderstorms, hail and possibly the first good snowfall of the season in the Southern California mountains.
If you're leaving town it will make travel more hazardous, not to mention the possibility of delays for travelers.
"If you can hit the road today instead of tomorrow, push it up a day," warned weathercaster Whitney Southwick.