Download presentation
Presentation is loading. Please wait.
Published byTimothy Bailey Modified over 11 years ago
1
Summary of Streamflow Conditions and USGS Low-Flow Activities State Drought Task Force Meeting Oct. 4, 2012 St Paul, MN - Webinar U.S. Department of the Interior U.S. Geological Survey Greg Mitton, USGS, Mounds View, MN mitton@usgs.gov 763-783-3201 Photo of dry channel at Minnesota River at Montevideo, 1932
2
2 Nearly half of U.S. experiencing below-normal streamflow http://waterwatch.usgs.gov/new/index.php Comparing lowflow conditions nationally – June and Sept., 2012
3
3 Map of below normal 7-day average streamflow for July 30 and Oct. 1, 2012 http://waterwatch.usgs.gov/new/index.php?m=dryw&r=mn
4
Flow Conditions at USGS gages in Minnesota http://waterdata.usgs.gov/mn/nwis/ current/?type=intro
5
5
6
6
7
7
8
8
9
9
10
9 10
11
11
12
Summary of current streamflows for 72 USGS stream gages within Minnesota. 28 (39%) locations have flows in the lower 10 th percentile. Mostly in the northern third and south-central parts of state. 28 (39%) locations have flows in the lower 10 th percentile. Mostly in the northern third and south-central parts of state. 27 (38%) locations have flows in the 10-24 th percentile 27 (38%) locations have flows in the 10-24 th percentile 17 (23%) locations have flows in the 25-75 th percentile. Mostly in the west-central part of state. 17 (23%) locations have flows in the 25-75 th percentile. Mostly in the west-central part of state. 12
13
13 Additional Drought Resources http://mn.water.usgs.gov/infodata/lowflow/ Low-Flow Statistics Web Page Drought-related Web Page http://mn.water.usgs.gov/drought/
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.