January, February, March Final. April Final. May Final. July Final. June Final. December Final
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1 Water Year 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 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 Water Year Official MARCH Final WSF (6-MAR-2015) ch 3, 2015 Hungry Horse Dam Here are the volumes for the ch final forecast for Hungry Horse Inflow: - Jul: 1,954 kaf (99) - Aug: 1,916 kaf (99) -Sep: 1,676 kaf (99) The ch forecast for sets the minimum flows for Columbia Falls and below Hungry Horse for the rest of the calendar year. They are as follows: Columbia Falls: 3,500 cfs Hungry Horse: 900 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: Ensemble: Issued: s Are in days QPF:Ensemble: Issued: days QPF:Ensemble: Issued: Move the mouse over the desired " " to display a graph. CSV ( / ) 2/6/2015
4 Water Supply - COLUMBIA - THE DALLES DAM COLUMBIA - THE DALLES DAM (TDAO3) s for Water Year 2015 Official 10 days QPF: Ensemble: Issued: s Are in days QPF:Ensemble: Issued: days QPF:Ensemble: Issued: Move the mouse over the desired " " to display a graph. CSV ( / ) 3/6/2015
5 Water Supply - SNAKE - LOWER GRANITE DAM SNAKE - LOWER GRANITE DAM (LGDW1) s for Water Year 2015 Official 10 days QPF: Ensemble: Issued: s Are in days QPF:Ensemble: Issued: days QPF:Ensemble: Issued: Move the mouse over the desired " " to display a graph. CSV ( / ) 3/6/2015
6 Water Year Official MARCH Final WSF (6-MAR-2015) Libby : ch 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 3 Flood Control Space 3 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) , Kevin Shaffer (206) , Adam Price (206) , or Kristian Mickelson (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. 3. Fernie precipitation values were not collected for 11 days during ruary. Fernie precipitation was scaled up using the ratio of Total ruary precipitation at Sparwood to precipitation at Sparwood on the days Fernie reported precip.
7 Water Year Official MARCH Final WSF (6-MAR-2015) Libby : ch 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 inches Stahl Peak, MT SWE East Creek, BC SWE inches Moyie Mountain, BC SWE Sunshine Village, AB SWE Akamina Pass, AB SWE South Racehorse Creek, AB SWE Intercept Hawkins Lake, MT SWE 74 () 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 WY 2015 Jul Oct-14 Nov-14 Dec Jun Jun Jun Units inch inch Units inch inch Units Units feet for: Peter F. Brooks, P.E., D. WRE Approving Official Ch., Hydrologic Engineering and Power Branch Northwestern Division Sara C. xen, P.E. Ch., Water Management Section 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: Ensemble: Issued: s Are in days QPF:Ensemble: Issued: days QPF:Ensemble: Issued: Move the mouse over the desired " " to display a graph. CSV ( / ) 3/6/2015
9 Dworshak : ch Runoff & Flood Control Calculation Runoff and Flood Control Most Probable Runoff Volume WY Percent of Percent of ft Seasonal Flood Control (assumes no shift of flood control space to Grand Coulee) Date>> Oct Nov Dec Jun Jul -Jul 3 Flood Control Space 3 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 1-1- 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 700.
10 Dworshak : ch Runoff & Flood Control Calculation -Jul Runoff Calculation: Variable Month SOI HQSI Cumulative Precip Elk Butte SWE Hoodoo Basin SWE Sherwin SWE Lost Lake SWE Crater meadows SWE Intercept Sep Oct-Date Observed Value A () Data Station Sept Nov Climate (Stdzd SOI) September SOI Precipitation (in) Oct Headquarters, ID Cumulative HQSI Data Snow Water Equiv (First of Month values) (in) Elk Butte, 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 of Regression Coefficient B ginal Runoff () =A*B Dec Jun Jun Jul 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 1-Jul
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: Ensemble: Issued: s Are in days QPF:Ensemble: Issued: days QPF:Ensemble: Issued: Move the mouse over the desired " " to display a graph. CSV ( / ) 3/6/2015
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: Ensemble: Issued: s Are in days QPF:Ensemble: Issued: days QPF:Ensemble: Issued: Move the mouse over the desired " " to display a graph. CSV ( / ) 3/6/2015
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: Ensemble: Issued: s Are in days QPF:Ensemble: Issued: days QPF:Ensemble: Issued: Move the mouse over the desired " " to display a graph. CSV ( / ) 3/6/2015
January, February, March Final. April Final. May Final. July Final. June Final. December Final
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
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