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The Weather Station Model

The Weather Station Model. Draw a Station Model. Get accompanying notes here. Decoding the Coded Pressure: 960-1040. 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. 1019.6. 919.6.

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The Weather Station Model

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  1. The Weather Station Model Draw a Station Model Get accompanying notes here

  2. Decoding the Coded Pressure: 960-1040 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 1019.6 919.6 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 pressure196= 1019.6mb Decode these coded pressures: 002 993 280 000 1028.0 1000.0 999.3 1000.2 How to encode pressures Back to the Station Model

  3. Encoding the Pressure 1013.5 Remove the decimal point 10135 Report the last 3 digits 135 Pressure1013.5 = 135 encoded pressure Encode these pressures: 1032.7 987.3 1012.2 1000.1 327 873 122 001 Back to Decoding Pressures Back to the Station Model

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

  5. Back to the Station Model

  6. NE at 25 Knots E at 5 Knots SE at 10 Knots Back to the Station Model

  7. Draw a Station Model for These Conditions: 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. Back to the Station Model

  8. Draw the following station model: Temperature: 94 °F Barometric Pressure: 1021.5 mb Visibility: 3 miles Cloud cover: 1/8 Barometric Pressure Change: +27 and rising Wind Direction: from the south Wind Speed: 25 knots Dew Point Temperature: 62 °F Precipitation during the last three hours 0.25 Current weather: clear and sunny

  9. Interpret the following station model: • Temperature • Cloud cover • Dew point • Wind direction • Wind speed • Barometric pressure • Barometric trend • 8. What was the barometric pressure three hours ago? 1

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