A local region of clearing skies or reduced cloud cover, indicating an intrusion of drier air on a severe thunderstorm; often seen as a bright area with higher cloud bases on the west or southwest side of a wall cloud. A clear slot is believed to be a visual indication of a rear flank downdraft (RFD).
The generally prevailing weather conditions of a region over a period of years. Some elements of climate include average high temperatures for a particular day or normal precipitation for a month or season.
The Climate Prediction Center (CPC) is one of the National Centers for Environmental Prediction, which are a part of NOAA's National Weather Service. It is located in College Park, Maryland. CPC issues climate forecasts valid weeks and months in advance.
The scientific study of climates; the science that deals with climates and/or climate conditions and their phenomena