About the Internet Weather Report (IWR)(TM) The IWRTM presents ongoing animated scans of conditions within the Internet. It is like daily newspaper or television weather radar reports, except instead of being about real world meteorology, it is about conditions inside the Internet itself. The IWR is presented in geographical maps that show lag, which is round trip time (latency) from our offices in Austin, Texas to thousands of Internet domains worldwide, currently every four hours, six times a day, seven days a week, using ICMP ECHO (ping).