Local Observations Metar Reports KLNS 140053Z 02008KT 9SM -RA BKN015 OVC024 14/13 A2984 RMK AO2 RAB50 SLP104 P0000 T01440128 First the station, then the date and time (Z = GMT), then the wind direction (first three digits) and speed (last two digits) and the abbreviation KT for knots. Then the visibility, in SM (statute miles), the present weather (if any), and the sky cover. The two numbers separated by a slash are the temperature and dew point, in Celsius. Then comes the altimeter setting, in hundredths of an inch of mercury, preceded by an A. Finally comes the remarks.
Step 2 – Satellite Maps We Have Satellites That Orbit Around the Earth and Take Photos of The Clouds There are Several Types of Satellite Pictures –Visible (Shows Land, Water, Clouds) –Water Vapor (Shows Atmospheric Water Vapor) –Infrared (Bounces Radiation Off Clouds, Can See Fog and Snow Cover)
Radar Imagery Nexrad (Next Generation Radar) 150+ Doppler Radars Detects Precipitation Wind Direction and Velocity Radar Dish Sends Out Pulse Which Bounces Off Clouds and Precipitation and Returns Back to the Dish
Computer Models Take Mathematical Formulas and Climatology Data and Predict What Will Be Going On In the Atmosphere Predictions Out to 16 Days, However, Best Data Within 3-7 Days NAM (North American Model) GFS (Global Forecast System) European, Canadian, + Many More
Forecast Experience/Education Know Geography and Climate of the Area You are Forecasting Understand Forecast Model Trends Remember the Weather Can Change at Any Moment without Warning Understand the Processes That Occur In The Atmosphere