August 11, 2000 July 11, 2001 Boulder, Colorado I extend my sincere appreciation to the many individuals who helped to prepare SAM-II - Student Activities in Meteorology. The willingness of many National Oceanic and Atmospheric Administration's (NOAA) employees to spend time and effort and to share their knowledge provides the strong scientific basis for the SAM-II series. To the many teachers who use the original Student Activities in Meteorology - SAM, I thank you. Because of you, SAM is in its third printing and successful way beyond our original aspirations. I hope that you find SAM-II as useful. My gratitude goes to the American Meteorological Society (AMS) for their positive reviews of SAM. Because of AMS, SAM received very valuable, national attention. To Rhonda Lange, I owe a special note of thanks for providing the inspiration and opportunity to write SAM-II. Through Rhonda, NOAA's Forecast Systems Laboratory provided many of the support services necessary during the draft writing of SAM-II. Many thanks to Holly Rosales who joined our team as a student intern and provided fast and efficient research and computer support. My sincere thanks to the following people for their contributions to SAM-II. Christine Ennis Paul Freitag Cecilia Girz Fred Gould Seth Gutman Gary Heckman Jim Holitza Kirk Holub Carol Knight Rhonda Lange Tom LeFebvre Brooks Martner Dai McClurg Sandy MacDonald Barbara McGehan Mike McPhadden Robert Munger John Osborn Larry Riddle Holly Rosales Tom Schlatter Julie Singewald Eric Thaler Tony Tafoya Tim Vialpando Will von Dauster Klaus Weickmann Finally, I would like to acknowledge the following students whose comments helped to improve the readability of the technical information presented in the activities: Rebecca Brosz, Michael Chady, Cortie Pierpont, Laura Smith, and Elise Welch. Sincerely, Beverly L. Meier Science Teacher Boulder Valley School District