UPDATE: Butte Fire is now IN San Andreas!
September 11, 2015 at 4:40 AM: We just heard a report that the Butte Fire is now only 5 miles from San Andreas.
Cal Fire has just requested more resources to protect the Calaveras County government center, Mark Twain Hospital, CHP and the Cal Fire Dispatch center there.
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Below is a link for an online map showing the Butte fire east of Jackson, CA.
The map displays (1) the Google aerial, (2) fire hotspots from satellite sensors and (3) the most recently posted fire perimeter.
Each time the map opens, the most recent data hosted on federal GIS (Geographical Information System) servers is displayed.
You can click on the crosshatch area and you will see a popup with the number of acres burned and the date that info was posted to the federal GeoMAC server. (The Inciweb maps get perimeter data from this same server.) That popup used to show “percent contained” but that information has been deleted from the data the public can see on the GeoMAC server.
About GeoMAC: http://www.geomac.gov/about.shtml
The circles are heat sources sensed by satellite. This is the MODIS data. There is not always actual fire at those spots. For example, maybe the satellite sensed a real hot smoke plume that drifted away from the fire. A heavy damp overcast can also confuse the sensors. In addition, this technology cannot sense fires that are small and/or not sufficiently hot.
About MODIS: http://modis.gsfc.nasa.gov/data/dataprod/nontech/MOD14.php
To see the map legend, learn how to turn data layers on/off, see how to create your own custom map link and get other tips for using the map, click “About this map” in the upper left corner of the map. Other data layers include wind forecasts for roughly 6 hours from when you open the map.
Online fire Map: http://www.mappingsupport.com/p/gmap4.php?ll=38.247658,-120.603138&z=11&t=h,MODIS_from_GeoMAC,Fire_perimeter&q=http://www.propertylinemaps.com/p/public_land_map/USA/USA_wildland_fire_3.txt
The map is displayed by Gmap4. I am the developer of this enhanced Google map viewer. This project is a public service and part of my way to “pay it forward”.
Joseph, the Gmap4 guy
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