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The Weather Station Model ©Steve Kluge 2007 Some images from the NYSED Earth Science Reference TablesSteve Kluge Get accompanying notes here Draw a Station Model

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Decoding the Coded Pressure 196 Insert a decimal point to the left of the last digit 19.6 Put a 9 and a 10 in front of the result 919.6 1019.6 Test the results against the range of normal atmospheric pressures 919.6 is below the range of normal pressures….REJECTED! 1019.6 is within the range of normal pressures….ACCEPTED! Coded pressure 196= 1019.6 mb Decode these coded pressures: 002 993 280 000 1000.2 999.3 1028.01000.0 Back to the Station Model How to encode pressures ©S. Kluge 2007

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Encoding the Pressure 1013.5 Remove the decimal point 10135 Report the last 3 digits 135 Pressure 1013.5 = 135 encoded pressure Encode these pressures: 1032.7 987.3 1012.2 1000.1 327 873 122001 Back to the Station Model Back to Decoding Pressures ©S. Kluge 2007

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The Barometric Trend + 19 / + means Higher now than it was 3 hours ago (- means Lower now than it was 3 hours ago ) 19 means the pressure has changed by 1.9 mb / means the pressure is currently rising ( \ means the pressure is currently falling ) Back to the Station Model What was the pressure 3 hours ago?Here? 1017.7 1003.5 ©S. Kluge 2007

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Back to the Station Model ©S. Kluge 2007

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Back to the Station Model NE at 25 Knots E at 5 Knots SE at 10 Knots ©S. Kluge 2007

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Temperature= 45F Dewpoint= 32F Wind NE at 20 knots Overcast Visibility= 1.5 miles Rain Showers Pressure Now= 997.3 mb Pressure 3 hrs. ago= 1000.2mb Barometer Falling Precipitation in last 6 hrs.=.53 in. Draw a Station Model for These Conditions: ©S. Kluge 2007 Back to the Station Model

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