Uploaded October 2025 | Updated September 2026, 4 hours ago

---

In this video, Dr. Janel Hanrahan provides an update on NOAA Atlas 15, covering key differences from Atlas 14, project progress, and preliminary results. The presentation also details the statistical methods used to develop present-day (Volume 1) and future (Volume 2) extreme precipitation estimates.
Resources mentioned during the video:
• Atlas 15 Information Page – water.noaa.gov/about/atlas15
• water.noaa.gov

dnr.state.mn.us/waters/watermgmt_section/floodplain/training.html