Missouri River Basin Water Management Monthly Update

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Missouri River Basin Water Management Monthly Update Participating Agencies 255 255 255 237 237 237 0 0 0 217 217 217 163 163 163 200 200 200 131 132 122 239 65 53 80 119 27 National Oceanic and

1 Missouri River Basin Water Management Monthly Update Participating Agencies National Oceanic and Atmospheric Administration National Weather Service U.S. Army Corps of Engineers June 6, 2017 Teleconference #: Access #: Security Code: 0606 Webinar address: Webmeeting #: The views, opinions and findings contained in this report are those of the authors(s) and should not be construed as an official Department of the Army position, policy or decision, unless so designated by other official documentation.

2 WEATHER / CLIMATE Mr. Doug Kluck Climatologist, Central Region Climate Services Director National Oceanic and Atmospheric Administration Kansas City, MO 2

3 Conditions Last 30 days 3

4 Conditions Since January 1 st 4

5 Mountain Snowpack (snow water equivalent % of normal) 5

6 Total Precipitation Next 7 Days June 6 th 13 th 6

7 Week 2: Temperature and Precipitation Probabilities June Temperature 7 Precipitation

8 Temperature and Precipitation Probabilities For June 2017 Temperature 8 Precipitation

9 Precipitation http://www.cpc.ncep.noaa.

9 3 Month Temperature and Precipitation Probabilities (June July August) Temperature 9 Precipitation

10 Drought Update 10

11 Current Conditions Current ENSO condition continued neutral Mountain snowpack much above normal* mainly WY & CO MT mountain snowpack varies from below to above Near normal temperatures for the most part over the last 30 days Somewhat wet from eastern CO, western KS into NE last 30 days Drought conditions developing over Dakotas Predictions Key Points Neutral ENSO next 3 months Temperatures: For June enhanced chances of below normal temps in the Lower MO Basin Equal chances of above, below and near normal for the rest of the summer (June August) Precipitation: For June, slightly better chances of above normal from MO west and north to MT For June through August, enhanced chances of above normal precip across the entire basin Drought: There is concern of drought continuing short term across the Dakotas but no long term prediction of worsening through the summer. 11

12 BASIN CONDITIONS / FLOOD OUTLOOK Kevin Low Hydrologist, Missouri Basin River Forecast Center National Weather Service Pleasant Hill, MO 12

13 UPPER MISSOURI RIVER BASIN WATER MANAGEMENT UPDATE FOR 2017 Jody Farhat, P.E., Chief U.S. Army Corps of Engineers Missouri River Basin Water Management 13 12

14 UPPER BASIN RUNOFF FOR 2017 Kevin Stamm, P.E. U.S. Army Corps of Engineers Missouri River Basin Water Management 14 12

15 Inches of Water Equivalent Total above Fort Peck Peaked at 99% of Normal 25% of Peak Remaining Missouri River Basin Mountain Snowpack Water Content June 5, 2017 OND J FMAMJ J AS Inches of Water Equivalent Total Fort Peck to Garrison Peaked at 148% of Normal 35% of Peak Remaining OND J FMAMJ J AS Ave Ave The Missouri River Basin mountain snowpack normally peaks near April

7 6 5 4 Missouri River Runoff above Sioux City,

29.9 MAF 3 2 1 0 Jan Feb Mar Apr May Jun Jul Aug

16 Missouri River Runoff above Sioux City, IA 2017 Forecast 2017 Calendar Year Forecast = 29.9 MAF Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Observed 2017 Forecast Average 16

17 RESERVOIR SYSTEM REGULATION Joel Knofczynski, P.E. U.S. Army Corps of Engineers Missouri River Basin Water Management 17

18 MISSOURI RIVER MAINSTEM SYSTEM STORAGE ZONES AND ALLOCATIONS Exclusive Flood Control 6% Annual Flood Control & Multiple Use 16% Current Storage Historic max Jun 6, Storage In MAF* Carryover Multiple Use 53% Historic min *Storages updated in August 2013 based on reservoir surveys. Permanent Pool 25%

19 CURRENT RESERVOIR LEVELS JUNE 6, 2017 Fort Peck Exclusive Flood Control Annual Flood Control & Multiple Use Elevation in feet msl Garrison 2250 Exclusive Flood Control Annual Flood Control & Multiple Use Elevation in feet msl Carryover Multiple Use Carryover Multiple Use Exclusive Flood Control Annual Flood Control & Multiple Use Permanent Pool 5.3 feet above base of Flood Control zone Oahe Permanent Pool 5.9 feet above base of Flood Control zone Elevation in feet msl Fort Randall 1620 Exclusive Flood Control Annual Flood Control & Multiple Use Elevation in feet msl Carryover Multiple Use Carryover Multiple Use Permanent Pool 2.6 feet above base of Flood Control zone Permanent Pool 4.7 feet above base of Flood Control zone

20 KEY POINTS Currently, 11.9 MAF of 16.3 MAF of flood storage space is available. Full navigation season. Full service flow support for season. Annual power production of 10.5 BKWhrs (average is 9.3 BKWhrs) Good service to all authorized purposes. 20

21 21

22 JULY S UPDATE Thursday, July 6, :00 pm CDT 22

23 CONTACT INFORMATION Name Office Address Phone Number Eileen Williamson Doug Kluck Kevin Low Jody Farhat Kevin Stamm Joel Knofczynski USACE, NWD Public Affairs Office NOAA, Kansas City, Climatologist National Weather Service, Hydrologist USACE, Chief, Missouri River Basin Water Management USACE, MRBWM, Hydraulic Engineer USACE, MRBWM, Hydraulic Engineer

Missouri River Basin Water Management Monthly Update

Missouri River Basin Water Management Monthly Update Participating Agencies 255 255 255 237 237 237 0 0 0 217 217 217 163 163 163 200 200 200 131 132 122 239 65 53 80 119 27 National Oceanic and Atmospheric