A new suite of microwave-based surface and hydrological products are available using the surface channels from both the AMSU-A and AMSU-B instruments. These new instruments allow for the generation of global precipitable water, cloud liquid water, rain rate, snow cover, and sea ice concentration products in cloudy regions where traditional visible and infrared instruments have decreased capability. Shown is an image of the total precipitable water field derived from NOAA-15’s AMSU-A on March 3, 2000, with values ranging up to 70 mm.