January, February, March Final. April Final. May Final. July Final. June Final. December Final
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1 2015 Water Management Plan December 31, 2014 APRIL final WSF sets BiOp actions as defined in table below. Other projects provided for informational purposes only. Point Hungry Horse The Dalles Lower Granite il August Provided by Reclamation uary, ruary, ch Final Sets min. flows at Hungry Horse and Columbia Falls uary, ruary, ch Final Sets VARQ FRM targets September Provided by Reclamation il August Provided by NWRFC il July Provided by NWRFC il Final, June Final Dworshak il July Provided by Corps Walla Walla District Sets VARQ refill flows Sets spring flow objective at McNary Dam Final Sets end of September draft limits at Hungry Horse and Libby July Final Sets end of August draft limit at Grand Coulee il Final Sets spring flow objective at Lower Granite June Final Sets suer flow objective at Lower Granite uary, ruary, ch Final Libby Sets VARQ FRM targets and VARQ refill flows il Final December Final il August Provided by Corps Seattle District BiOp Actions to be Determined Sets end of December variable draft target Sets VARQ FRM targets il Final Sets VARQ FRM targets and VARQ refill flows Final Sets Libby min. sturgeon flow volume and min. bull trout flows for after sturgeon pulse through Sept. Sets VARQ FRM targets and VARQ refill flows June Final VARQ refill flows uary through June Final 18 Manage for reservoir FRM and refill
2 il 2, 2015 Hungry Horse Dam Here are the volumes for the il final forecast for Hungry Horse Inflow: - Jul: 1,653 kaf (88) - Aug: 1,704 kaf (88) -Sep: 1,4 kaf (88) The minimum flows for Columbia Falls and below Hungry Horse for the rest of the calendar year remain at: Columbia Falls: 3,500 cfs Hungry Horse: 0 cfs y Mellema River and Reservoir Operations U.S. Bureau of Reclamation PN Regional Office Boise, ID 83706
3 Water Supply - SF FLATHEAD - HUNGRY HORSE DAM *Hungry Horse Dam official water supply forecasts computed by the Bureau of Reclamation (on previous page). -This forecast from NWRFC is provided for informational purposes only. SF FLATHEAD - HUNGRY HORSE DAM (HHWM8) s for Water Year 2015 Official 10 days QPF: : Issued: s Are in days QPF:: Issued: days QPF:: Issued: Move the mouse over the desired " " to display a graph. CSV ( / )
4 Water Supply - COLUMBIA - THE DALLES DAM il final forecast for The Dalles Dam -Aug runoff volume determines spring flow objective at McNary, as follows: TDA -Aug <80 maf = MCN spring flow objective 220 kcfs (average MCN discharge il 10-June 30). COLUMBIA - THE DALLES DAM (TDAO3) s for Water Year 2015 Official 10 days QPF: : Issued: s Are in days QPF:: Issued: days QPF:: Issued: Move the mouse over the desired " " to display a graph. CSV ( / )
5 Water Supply - SNAKE - LOWER GRANITE DAM il final forecast for LWG -Jul runoff volume determines LWG spring flow objective, as follows: LWG -Jul <16 maf = LWG spring flow objective 85 kcfs (average Lower Granite discharge il 3-June 20). SNAKE - LOWER GRANITE DAM (LGDW1) s for Water Year 2015 Official 10 days QPF: : Issued: s Are in days QPF:: Issued: days QPF:: Issued: Move the mouse over the desired " " to display a graph. CSV ( / )
6 Libby : il Runoff & Flood Control Calculation Runoff and Flood Control Most Probable Runoff Volume: Date >> Flood Control Space Flood Control Elevation 30-Nov Nov Percent of Percent of Jul -Jul ft Jun VARQ Flood Control Implemented Dec Dec Aug 30- Flood Control Space 30- Flood Control Elevation Seasonal Flood Control Date >> -Aug Runoff First-of-Month Elev WY / Spread of values around expected forecast 99 whisker bounds 5 1 whisker 35-yr average Nov Dec Jun Libby Flood Control Elevations Latest water supply forecast: Elevation (ft) Flood Control Elevation Requirement First-of-Month Observed Elevation 1-Jun Dec 1-Nov 2300 Notes: 1. The given forecast is the official Corps of Engineers forecast for Libby. If you have any questions please contact Joel Fenolio (206) or Kevin Shaffer (206) If a prior month's forecast as published in this document is different than what was originally published in the issue month, then the earlier forecast has been adjusted to reflect updated values for precipitation or streamflow.
7 Libby : il Runoff & Flood Control Calculation -Aug Runoff Calculation: Variable Units Month(s) Observed Value Percent of A Regression Coefficient ginal Runoff () B =A*B SOI Jun:Jul Eureka RS, MT Oct: Prcp inches West Glacier, MT Oct: Prcp inches Cranbrook A, BC Oct: Prcp Fernie, BC Oct: Prcp Hawkins Lake, MT SWE inches inches East Creek, BC SWE Moyie Mountain, BC SWE Stahl Peak, MT SWE Sunshine Village, AB SWE Akamina Pass, AB SWE South Racehorse Creek, AB SWE Intercept 1 1- () Data used in Libby Water Supply Climate Data Oct Nov Dec SOI Precipitation Data Eureka RS, MT West Glacier, MT Cranbrook A, BC Fernie, BC Snow Water Equiv Hawkins Lake, MT Stahl Peak, MT East Creek, BC Moyie Mountain, BC Sunshine Village, AB Akamina Pass, AB South Racehorse Creek, AB Streamflow Libby Inflow Volume Reservoir Elevation Libby FOM Elev Nov Dec Jun Jul WY 2015 Oct-14 Nov-14 Dec Jun 1-1-Jun Units inch inch Units inch inch Units Units feet for: Barbara Miller Approving Official Act. Ch., Hydrologic Engineering and Power Branch Northwestern Division Joel Fenolio Upper Columbia Senior Water Manager Seattle District
8 Water Supply - KOOTENAI - LIBBY DAM *Libby Dam official water supply forecasts computed by the Corps Seattle District (on previous pages). -This forecast from NWRFC is provided for informational purposes only. KOOTENAI - LIBBY DAM (LYDM8) s for Water Year 2015 Official 10 days QPF: : Issued: s Are in days QPF:: Issued: days QPF:: Issued: Move the mouse over the desired " " to display a graph. CSV ( / )
9 Dworshak : il Runoff & Flood Control Calculation Runoff and Non-Shifted Flood Control Most Probable Runoff Volume WY Percent of 30yr Percent of ft Seasonal Flood Control (assumes no shift of flood control space to Grand Coulee) Date>> Oct Nov Dec Jun -Jul -Jul 30- Flood Control Space 30- Flood Control Elevation -Jul Runoff 2189 First-of-Month Elev Date >> Flood Control Space Flood Control Elevation 15-Dec Dec Spread of values around expected forecast 99 whisker bounds 5 1 whisker 71-yr average Oct Nov Dec Jun Dworshak Flood Control Elevations Latest water supply forecast: Elevation (ft) Oct 1-Nov 1-Dec 1- Flood Control Elevation Requirement Jun First-of-Month Observed Elevation Notes: 1. The given forecast is the official Corps of Engineers forecast for Dworshak. If you have any questions please contact Jeremy Giovando ( ), or Steve Hall ( ). 2. Due to updated values for precipitation, snow or streamflow, subsequent forecasts may be different from the forecast published herein Dec and 31-Dec flood control space is fixed at target elevation does not reflect flood control shift operation between Dworshak and Grand Coulee target elevation may vary as runoff occurs throughout the month of il.
10 Dworshak : il Runoff & Flood Control Calculation -Jul Runoff Calculation: Variable Month Observed Value of A Sep SOI HQSI Cumulative Precip Oct-Date Elk Butte SWE 17.9 Hoodoo Basin SWE 25.8 Sherwin SWE 0.0 Lost Lake SWE 30.2 Crater meadows SWE Intercept () Data Station Sept Nov Dec Climate (Stdzd SOI) September SOI Precipitation (in) Oct Headquarters, ID Cumulative HQSI Data Snow Water Equiv (First of Month values) (in) Elk Butte, ID Cool Creek, ID Hoodoo Basin, MT Sherwin, ID Shanghi Suit, ID Lost Lake, ID Hemlock, ID Crater Meadows Streamflow (End of Month) (kaf) Dworshak Inflow Regression Coefficient ginal Runoff () B =A*B Jun Jun Approval: John J. Heitstuman P.E. Chief Hydrology Section Walla Walla District USACE Peter Brooks, P.E., D. WRE Ch., Hydrologic Engineering and Power Branch Columbia Basin Water Management Division
11 Water Supply - NF CLEARWATER - DWORSHAK DAM * Dworshak Dam official water supply forecasts computed by the Corps Walla Walla District (on previous pages). -This forecast from NWRFC is provided for informational purposes only. NF CLEARWATER - DWORSHAK DAM (DWRI1) s for Water Year 2015 Official 10 days QPF: : Issued: s Are in days QPF:: Issued: days QPF:: Issued: Move the mouse over the desired " " to display a graph. CSV ( / )
12 Water Supply - COLUMBIA - GRAND COULEE DAM * Grand Coulee Dam water supply forecasts are not used for implementation of BiOp actions. -This forecast is provided for informational purposes only. COLUMBIA - GRAND COULEE DAM (GCDW1) s for Water Year 2015 Official 10 days QPF: : Issued: s Are in days QPF:: Issued: days QPF:: Issued: Move the mouse over the desired " " to display a graph. CSV ( / )
13 Water Supply - PEND OREILLE - ALBENI FALLS DAM * Albeni Falls Dam water supply forecasts are not used for implementation of BiOp actions. -This forecast is provided for informational purposes only. PEND OREILLE - ALBENI FALLS DAM (ALFW1) s for Water Year 2015 Official 10 days QPF: : Issued: s Are in days QPF:: Issued: days QPF:: Issued: Move the mouse over the desired " " to display a graph. CSV ( / )
January, February, March Final. April Final. May Final. July Final. June Final. December Final
Water Year 2015 - Official MARCH Final WSF (6-MAR-2015) 2015 Water Management Plan -December 31, 2014 MARCH final WSF sets BiOp actions as defined in table below. Other projects provided for informational
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