It’s raining, and with the rain brings the usual mixed feelings (oh boy we need the rain but oh no the traffic is going to be bad) colored by the very real dangers from mud and debris flows in the watersheds burned by the recent fires. The web makes it easy to keep track of weather, but what if you want more specific information? Here are some lesser known web resources to track local rainfall. Los Angeles County Department of Public Works has numerous rain gauges throughout the basin and their site allows you to track rainfall County-wide. Another one of my favorites is the USGS stream gaging stations. You can search by the specific stream gauge number (e.g., Arroyo Seco near Pasadena is #11098000) or click on the map to get real time, hour by hour data. Here is an example of the graph you will see, from the station in the Arroyo Seco.
The final resource I found is a little less useful here in the Los Angeles Basin because there are fewer stations: California Irrigation Management Information System, in the State Department of Water Resources. You have to set up a log in, but once in you can view a variety of weather-oriented information.