Hunter's Irrigation Management & Monitoring Software (IMMS) is a PC-based software package that makes central control of large-scale irrigation systems affordable, usable, and comprehensible. IMMS software and hardware have been intensively developed and refined into a graphically based irrigation command and control program. IMMS interactive map graphics (to station level) put the irrigation system manager in complete visual control of wide-area watering operations and now include the ability to import CAD designs. An optional plug-in ET software module provides complete weather-based irrigation with station level soil moisture modeling, using inexpensive local ET sensors. IMMS has a full range of communications options, including Ethernet, GPRS mobile, dial-up telephone, UHF radio, and hardwired cable. IMMS is compatible with Windows operating systems through Windows 8.