This display of the total precipitable water vapor (PW) as derived from the GOES-11 Sounder is provided each hour, matching the similar display from the "operational" GOES-8 and GOES-10 Sounders. For more description of the GOES Sounder PW DPI as well as longer animations from GOES-8 and GOES-10, see the PW section of the CIMSS Realtime GOES Page.