Metr 201

Synoptic Metr Quiz #4

100 pts. (35 minutes)

 

1. Use of Lab.  Print out the following from the lab (using the a lab window on the dock.  You are expected to know or to be able to find the script that you will type and execute to print these).  For each item below, write out the script you used, and then print the chart.  Attach the printed chart to the test when you turn it in. (12 points each for 36 points total)

 

         (a) 500 mb analysis (for time and date 05030212): fax ua_500 05030212 -p

 

         (b) 300 mb analysis (for time and date 05030212): fax ua_300 05030212 -p

 

         (c) Latest plot of surface weather information with isobars for the United States

                  (for time and date 05030212): sfcplot 05030212 -p

 

2.      Mid and Upper tropospheric Analyses. 

                   

         300 and 500 mb Charts (Total of 32 points)                        

 

         (a)     Draw one trough axis (red dashed) and one ridge axis (blue jagged) on the chart. (7 pts)

 

         (b)     Indicate the "polar" jet stream(s) with  long black arrow(s). (7 pt)

 

         (c)     (300 mb chart only) With regard to the portion of the on the West coast indicate ONE area of upper tropospheric divergence (green "D")  on the 300 mb chart (6 pts)

 

         (d)     (300 mb chart only)  With regard to the same portion of the pattern as in (c), indicate an area where you expect a surface low pressure area to be located (red "L").(6  pt)

 

         (e)     (500 mb chart only) With regard to the same portion of the pattern as in (c), indicate an area where you expect midtropospheric upward motion to be occurring (black "U"). (6 pts)

 

3.      Surface Map Analysis

 

         Locate Caribou, Maine (extreme northern tip of Maine) and Midland, Texas (west Texas, near the southeastern tip of New Mexico).  Now provide the following DECODED information. Be sure to include units. (4 points each for a total of 32 points)

 

        

Caribou, Maine

12 UTC 2 March 2005

Temperature

19oF

Dew Point Temperature

17 oF

Pressure

985.9 mb

Present Weather

Light continuous snow

 

 

Midland, Texas

12 UTC 2 March 2005

Relative Humidity

100%

Wind Direction

SSE

Pressure

1012.2 mb

Present Weather

Moderate fog