Lab 5 More Stability Analysis and Soundings Presented by: Pete Stamus Tues, Wed, June 1999 Hydromet 99-2
Lab 5: More Stability Analysis and Soundings Provided: UTC 13 March 1993 soundings for Hatteras NC, Dulles VA, Athens GA, Albany NY UTC 14 March 1993 soundings for Dulles VA, Atlantic City NJ, Albany NY UTC 14 March mb plots UTC 14 March 1993 MSL pressure and surface plots UTC 14 March mb heights and vorticity Action: 1. Where is the above freezing layer at Athens GA? What physical process might have caused this? 2. What is the origin of the air feeding the heavy snow in Pennsylvania and New York? 3. What is the temperature change at Albany NY between the surface and 300 mb at 1200 UTC 13 March 1993? 4. Same as question 3, but for 0000 UTC 14 March What is the temperature change at Albany NY between 700 and 300 mb at 1200 UTC 13 March 1993? 6. Same as question 5, but for 0000 UTC 14 March 1993.
Lab 5: More Stability Analysis and Soundings (cont.) Discussion: a. Can you explain why the heaviest snow is often near the rain/snow line? b. Why was there thundersnow at Albany NY?
13 Mar UTC Hatteras NC
13 Mar UTC Hatteras NC
13 Mar UTC Athens GA
13 Mar UTC Athens GA
13 Mar UTC Dulles VA
13 Mar UTC Dulles VA
13 Mar UTC Albany NY
13 Mar UTC Albany NY
14 Mar UTC Dulles VA
14 Mar UTC Dulles VA
14 Mar UTC Atlantic City NJ
14 Mar UTC Atlantic City NJ
14 Mar UTC Albany NY
14 Mar UTC Albany NY
14 Mar UTC 850 mb plot
14 Mar UTC 850 mb plot
14 Mar UTC
14 Mar UTC
14 Mar UTC MSL pressure (mb)
14 Mar UTC 500 mb Height (m) Vorticity (s -1 )