In order to study the best practices of multicultural mentoring for underrepresented atmospheric science students, STEM faculty (including atmospheric science faculty) were interviewed to provide insight about their multicultural mentoring, communication, and relationship with their underrepresented students. Based on this study, the Multicultural Mentoring Communication Praxis (MMCP) was developed to provide a mentoring model that is applicable for underrepresented atmospheric science students. The MMCP reveals how STEM mentors can utilize the best practices of open communication, supportive communication, and consistent communication to engage in effective multicultural mentoring with their students. These practices facilitate multicultural mentoring that recognize specific challenges for underrepresented students, such as discrimination or first generation students navigating higher education. The MMCP also delineates how the mentoring process is influenced by nuances of race, gender, and culture that can guide a STEM mentor’s ability to not only understand the needs and experiences of their student, but also how they can provide support. This presentation will highlight the best practices of the MMCP, and provide strategies to implement multicultural mentoring for underrepresented atmospheric science students.