Mesoscale convective systems (MCSs)—intermediate-scale thunderstorm clusters lasting up to about 24 hours—are important precipitation producers. They account for 30-70 percent of warm-season (April to August) rainfall between the Rocky Moun

PNNL has been honored with three awards for excellence in transferring technologies to private sector by the Federal Laboratory Consortium.

PNNL licenses three technologies for preventing cyberattacks.