Elements of Meteorology Notes for Exam 4

Elements of Meteorology Notes for Exam 4 - Exam 4 C hapter...

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Exam 4 Chapter 9, 10, 11 Weather Forecasting Meteorological Organizations WMO World Meteorological organization (consists of about 175 nations) National Weather Service The NWS is a department within NOAA (National Oceanic and Atmospheric Administration, which is a department within the Commerce department of the federal government) Offices within the NWS NCEP National Center for Environmental Prediction WSO Weather service offices CPC Climate prediction center TPC Tropical prediction center SPC Storm prediction center Methods of Forecasting Persistence future weather will be the same as present weather. Steady-state/trend, nowcasting assumes weather systems will move in the same direction and at approximately the same speed and maintain their current strength. Analogue conditions on the weather charts strongly resemble features that produced certain weather conditions sometime in the past. Climatological forecast a forecast based on climatology (average weather) Ensemble forecasting averaging several models or runs of the same model Probably of precipitation The chance of rain is 60%. The expression means that there is a 60 percent chance that any random place in the forecast area, such as your home, will receive measureable rainfall. Numerical weather prediction Watches/warnings How accurate are forecasts? Private vs. Public AWIPS Advanced Weather Interactive Processing System
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Thunderstorms Stages of Development 1. cumulus 2. growing (sometimes the cumulus and growing stages are combined into one stage called the cumulus stage.
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  • Spring '08
  • Tropical cyclone, National Weather Service, Prediction Center, cloud illuminate Cloud, Weather Forecasting Meteorological

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