Remote Automated Weather Station
The Remote Automatic Weather Stations (RAWS) system is a network of automated weather stations run by the U.S. Forest Service (USFS) and Bureau of Land Management (BLM) and monitored by the National Interagency Fire Center (NIFC), mainly to observe potential wildfire conditions. Unlike the automated airport weather stations which are located at significant airports, RAWS stations are often located in remote areas, particularly in national forests.
Source: Wikipedia — Remote Automated Weather Station (CC BY-SA 4.0)