NBC Weather Plus by NBC Weather Plus' weather radar forecasts from 2005 to 2008. The network utilizes an on-screen graphic, known as the "L-bar," to display local weather forecasts on the left and bottom third of the screen to provide local weather information on a continuous basis, even during commercial breaks, national weather segments and "Weather Plus University". The sidebar displayed sponsorship tags on the top left (which were more often seen on local feeds, and was removed during "Weather Plus University"), current weather conditions (sky condition, temperature, wind speed/direction and humidity) for the affiliate's city of service and other cities within the
Weather understandings of what weather is, what makes it change, the effect it has on humans in different situations, etc. Therefore, weather is something people often communicate about. Weather has played a large and sometimes direct part in human history. Aside from climatic changes that have caused the gradual drift of populations (for example the desertification of the Middle East, and the formation of land bridges during glacial periods), extreme weather events have caused smaller scale population movements and intruded directly in historical events. One such event is the saving of Japan from invasion by the Mongol fleet of Kublai Khan