Update, October 24: If this solution is a bit to tech-geeky for you, I've captured the map images and posted them here for the Witch Creek fire and here for the Harris fire. I will be updating them throughout the day.
San Diego State University has posted a fantastic Google-Earth based map of the wildfires in San Diego. Here's how to see it.
Start Google Earth (GE). You can download and install Google Earth here if you don't have it already.
Right click on this link and copy the link to your clipboard.
In GE, do file->open and paste the URL into the file name box. Don't worry if GE looks like it wants a file name instead of a URL.
This will bring up the overlays and map data. It's outstanding. SDSU is saying it will keep this updated. I don't know if this is a live map or if you'll have to restart GE or reload the kmz file from time to time. If someone can tell me in the comments, I'd appreciate it.
When I brought it up, the smoke overlay blotted out the street names. Over on the left hand side, deselect "MODIS." Apparently, MODIS is their smoke distribution model.
Rock on, SDSU.
Update: If you can't get GE to work for you, there is a Google Maps version here, but it's not as detailed. I didn't like it nearly as much as the GE version. Having said that, it's still a good place to go for current information.
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