Montana Snow Survey Data

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Brian Domonkos, Water Supply Specialist, NRCS presents Snow survey data at the 2013 Clark Fork River Basin Task Force Water Outlook meeting.

Brian Domonkos, Water Supply Specialist, NRCS presents Snow survey data at the 2013 Clark Fork River Basin Task Force Water Outlook meeting.

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  • 1. Clark Fork Task Force MeetingOctober 23rd, 2012Brian DomonkosWater Supply SpecialistBrian.Domonkos@mt.usda.govwww.mt.nrcs.usda.gov/snow/
  • 2. 0510152025301-Oct1-Nov1-Dec1-Jan1-Feb1-Mar1-Apr1-May1-Jun1-Jul1-Aug1-SepSnowWaterEquivalent(Inches)Average WY2013 Minimum 10% 30% 50% 70% 90% MaximumUpper Clark Fork River Basin with Non-Exceedence ProjectionsBasedon Provisional SNOTEL Data as of May 24, 2013Median
  • 3. 0510152025303540451-Oct1-Nov1-Dec1-Jan1-Feb1-Mar1-Apr1-May1-Jun1-Jul1-Aug1-SepSnowWaterEquivalent(Inches)Average WY2013 Minimum 10% 30% 50% 70% 90% MaximumBitterroot River Basin with Non-Exceedence ProjectionsBasedon Provisional SNOTEL Data as of May 24, 2013Median
  • 4. 05101520253035401-Oct1-Nov1-Dec1-Jan1-Feb1-Mar1-Apr1-May1-Jun1-Jul1-Aug1-SepSnowWaterEquivalent(Inches)Average WY2013 Minimum 10% 30% 50% 70% 90% MaximumBlackfoot River Basin with Non-Exceedence ProjectionsBasedon Provisional SNOTEL Data as of May 24, 2013Median
  • 5. 051015202530354045501-Oct1-Nov1-Dec1-Jan1-Feb1-Mar1-Apr1-May1-Jun1-Jul1-Aug1-SepSnowWaterEquivalent(Inches)Average WY2013 Minimum 10% 30% 50% 70% 90% MaximumFlathead River Basin with Non-Exceedence ProjectionsBasedon Provisional SNOTEL Data as of May 24, 2013Median
  • 6. 01020304050601-Oct1-Nov1-Dec1-Jan1-Feb1-Mar1-Apr1-May1-Jun1-Jul1-Aug1-SepSnowWaterEquivalent(Inches)Average WY2013 Minimum 10% 30% 50% 70% 90% MaximumLower Clark Fork River Basin with Non-Exceedence ProjectionsBasedon Provisional SNOTEL Data as of May 24, 2013Median
  • 7. Showing Data For 5/24/2013 % Average LY % Avg % Last Year % of Avg Peak Norm % Avg Peak %of TY PeakColumbia In Montana 73% 104% 70% 43% 59% 45%Kootenai ab Bonners Ferry 78% 146% 54% 44% 56% 43%Kootenay in CanadaKootenai in Montana 78% 146% 54% 44% 56% 43%Kootenai Mainstem 83% 158% 53% 47% 56% 46%Tobacco 85% 120% 71% 57% 67% 53%Fisher 0% 0% 0% 0% 0%Yaak 49% 150% 33% 28% 56% 25%Clark Fk ab Pend Orielle 73% 96% 75% 43% 59% 45%Clark Fork River Basin 59% 85% 70% 34% 57% 38%Upper Clark Fork Basin 60% 72% 84% 40% 66% 44%Flint Creek 7% 0% 2% 35% 3%Rock Creek 7% 35% 21% 5% 64% 6%Clark Fork ab Blackfoot 38% 53% 73% 25% 66% 31%Blackfoot 83% 93% 89% 52% 63% 52%Clark Fork ab Flint Creek 52% 62% 84% 38% 73% 43%Bitterroot River Basin 40% 74% 54% 18% 46% 22%West Fork Bitterroot 51% 61% 84% 27% 53% 30%East Side Bitterroot 33% 59% 57% 20% 59% 24%West Side Bitterroot 49% 94% 52% 20% 41% 24%Flathead River Basin 91% 108% 85% 60% 66% 58%NF Flathead in CanadaFlathead in Montana 91% 108% 85% 60% 66% 58%NF Flathead in Montana 96% 120% 80% 66% 68% 61%MF Flathead 98% 118% 83% 69% 70% 62%SF Flathead 87% 89% 98% 53% 61% 50%Stillwater-Whitefish 0% 0% 0% 0% 0%Swan 93% 104% 90% 74% 79% 67%Mission Valley 100% 123% 82% 69% 69% 67%Little Bitterroot-AshleyJocko 84% 93% 91% 57% 68% 56%Lower Clark Fork Basin 65% 108% 60% 33% 51% 36%
  • 8. 0510152025303540451-Oct1-Nov1-Dec1-Jan1-Feb1-Mar1-Apr1-May1-Jun1-Jul1-Aug1-SepSnowWaterEquivalent(Inches)Upper Clark Fork River Basin with Non-Exceedance ProjectionsBasedon Provisional SNOTEL Data as of May 24, 2013Average WY2013 Minimum 10% 30% 50% 70% 90% Maximum
  • 9. 0510152025303540451-Oct1-Nov1-Dec1-Jan1-Feb1-Mar1-Apr1-May1-Jun1-Jul1-Aug1-SepSnowWaterEquivalent(Inches)Jefferson River Basin with Non-Exceedance ProjectionsBasedon Provisional SNOTEL Data as of May 24, 2013Average WY2013 Minimum 10% 30% 50% 70% 90% Maximum
  • 10. 01020304050601-Oct1-Nov1-Dec1-Jan1-Feb1-Mar1-Apr1-May1-Jun1-Jul1-Aug1-SepSnowWaterEquivalent(Inches)Bitterroot River Basin with Non-Exceedance ProjectionsBasedon Provisional SNOTEL Data as of May 24, 2013Average WY2013 Minimum 10% 30% 50% 70% 90% Maximum
  • 11. 01020304050601-Oct1-Nov1-Dec1-Jan1-Feb1-Mar1-Apr1-May1-Jun1-Jul1-Aug1-SepSnowWaterEquivalent(Inches)Blackfoot River Basin with Non-Exceedance ProjectionsBasedon Provisional SNOTEL Data as of May 24, 2013Average WY2013 Minimum 10% 30% 50% 70% 90% Maximum
  • 12. 0102030405060701-Oct1-Nov1-Dec1-Jan1-Feb1-Mar1-Apr1-May1-Jun1-Jul1-Aug1-SepSnowWaterEquivalent(Inches)Flathead River Basin with Non-Exceedance ProjectionsBasedon Provisional SNOTEL Data as of May 24, 2013Average WY2013 Minimum 10% 30% 50% 70% 90% Maximum
  • 13. 010203040506070801-Oct1-Nov1-Dec1-Jan1-Feb1-Mar1-Apr1-May1-Jun1-Jul1-Aug1-SepSnowWaterEquivalent(Inches)Lower Clark Fork River Basin with Non-Exceedance ProjectionsBasedon Provisional SNOTEL Data as of May 24, 2013Average WY2013 Minimum 10% 30% 50% 70% 90% Maximum
  • 14. 0.000.100.200.300.400.500.600.700.800.901.001.101.200.003.006.009.0012.0015.0018.0021.0024.0027.0030.0033.0036.0010/01/1010/29/1011/26/1012/24/1001/21/1102/18/1103/18/1104/15/1105/13/1106/10/1107/08/1108/05/1109/02/1109/30/1110/28/1111/25/1112/23/1101/20/1202/17/1203/16/1204/13/1205/11/1206/08/1207/06/1208/03/1208/31/1209/28/1210/26/1211/23/1212/21/1201/18/1302/15/1303/15/1304/12/1305/10/13DailyPrecipitation(inches)SoilMoistureResponseandAccumulatedSnowWaterEquivalent(SWE)DateNevada Ridge SNOTEL Water Year 2011-13Soil Moisture Response Data24-Hr Precip Accumulated SWE Avg 4" SMR Avg 8" SMR Avg 20" SMR Avg 40" SMR
  • 15. 0.000.250.500.751.001.251.501.752.002.252.502.753.000.005.0010.0015.0020.0025.0030.0035.0040.0045.0050.0055.0060.0010/01/1010/29/1011/26/1012/24/1001/21/1102/18/1103/18/1104/15/1105/13/1106/10/1107/08/1108/05/1109/02/1109/30/1110/28/1111/25/1112/23/1101/20/1202/17/1203/16/1204/13/1205/11/1206/08/1207/06/1208/03/1208/31/1209/28/1210/26/1211/23/1212/21/1201/18/1302/15/1303/15/1304/12/1305/10/13DailyPrecipitation(inches)SoilMoistureResponseandAccumulatedSnowWaterEquivalent(SWE)DateMt. Lockhart SNOTEL Water Year 2011-13Soil Moisture Response Data24-Hr Precip Accumulated SWE Avg 4" SMR Avg 8" SMR Avg 20" SMR Avg 40" SMR
  • 16. May 1 Volumetric Streamflow ForecastsBasin/Station NameMAY-JUL50%Forecast(KAF)Average(KAF)Last Year ObsStrmflow (KAF) % of Avg% of LastYearStrmflwKootenai River Basin 11325 11097 17778.9 102% 64%Kootenai R at Leonia 5790 5730 9181.9 101% 63%Upper Clark Fork River Basin 1836.8 2469 2709.9 74% 68%Little Blackfoot nr Garrison 37 56 48.4 66% 76%Flint Ck nr Southern Cross 5.9 10.5 7.1 56% 83%Flint Ck bl Boulder Ck 28 45 36.0 62% 78%Lower Willow Ck Reservoir Inflow 2.2 8.5 4.4 26% 50%MF Rock Ck nr Philipsburg 36 53 49.2 68% 73%Rock Ck nr Clinton 135 220 233.6 61% 58%Nevada Ck nr Helmville 7.7 11 14.0 70% 55%Blackfoot R nr Bonner 530 590 690.4 90% 77%Clark Fork R ab Milltown 260 445 468.2 58% 56%Clark Fork R ab Missoula 795 1030 1158.6 77% 69%Bitterroot River Basin 1356 1525 1653.0 89% 82%Bitterroot R nr Missoula 890 990 1069.0 90% 83%Flathead River Basin 17255.4 14982 19796.6 115% 87%Flathead Lake Inflow 5700 4940 6672.2 115% 85%Lower Clark Fork River Basin 21545 21404 26542.8 101% 81%Clark Fork R at Whitehorse Rapids 9190 8740 11148.3 105% 82%
  • 17. 020004000600080001000012000140000.01.02.03.04.05.06.07.08.09.010.0Streamflow(cfs)Runoff(in)WY 2013 Upper Clark Fork Runoff NEVADA RIDGEPrecPETERSONMEADOWS PrecSTUARTMOUNTAIN PrecROCKER PEAKPrecN FK ELK CREEKPrecSKALKAHOSUMMIT PrecWARM SPRINGSPrecBASIN CREEK PrecBARKER LAKESPrecBLACK PINE PrecPETERSONMEADOWS SWESTUARTMOUNTAIN SWEROCKER PEAKSWEN FK ELK CREEKSWENEVADA RIDGESWESKALKAHOSUMMIT SWEWARM SPRINGSSWEBASIN CREEK SWEBARKER LAKESSWEBLACK PINE SWERO LineClark Fork aboveMissoula MT
  • 18. 0200040006000800010000120000.00.51.01.52.02.53.03.54.04.55.0Streamflow(cfs)Runoff(in)WY 2013 Blackfoot at Bonner RunoffSTUARTMOUNTAIN PrecNORTH FORKJOCKO PrecNEVADA RIDGEPrecN FK ELK CREEKPrecLUBRECHT FLUMEPrecSTUARTMOUNTAIN SWENORTH FORKJOCKO SWENEVADA RIDGESWEN FK ELK CREEKSWELUBRECHT FLUMESWERO LineBlackfoot Rivernear Bonner MT
  • 19. 0200040006000800010000120000.00.51.01.52.02.53.03.54.04.55.0Streamflow(cfs)Runoff(in)WY 2013 Blackfoot at Bonner RunoffSTUARTMOUNTAIN PrecNORTH FORKJOCKO PrecNEVADA RIDGEPrecN FK ELK CREEKPrecLUBRECHT FLUMEPrecSTUARTMOUNTAIN SWENORTH FORKJOCKO SWENEVADA RIDGESWEN FK ELK CREEKSWELUBRECHT FLUMESWERO LineBlackfoot Rivernear Bonner MT
  • 20. 0200040006000800010000120000102030405060701-Mar 15-Mar 29-Mar 12-Apr 26-Apr 10-May 24-May 7-Jun 21-Jun 5-Jul 19-JulStreamflow(cfs)Snowpack&Year-to-DatePrecipitation(in)Blackfoot at Bonner Streamflow, Snowpack & PrecipitationLUBRECHT FLUMESWEN FK ELK CREEK SWENEVADA RIDGE SWENORTH FORK JOCKOSWESTUART MOUNTAINSWELUBRECHT FLUMEPrecN FK ELK CREEK PrecNEVADA RIDGE PrecNORTH FORK JOCKOPrecSTUART MOUNTAINPrecBlackfoot River nearBonner MT
  • 21. 02000400060008000100001200014000160000.01.02.03.04.05.06.07.08.0Streamflow(cfs)Runoff(in)WY 2013 Bitterroot River near Missoula Runoff SADDLE MTN.PrecNEZ PERCE CAMPPrecTWIN LAKES PrecTWELVEMILECREEK PrecSKALKAHOSUMMIT PrecDALY CREEK PrecLOLO PASS PrecNEZ PERCE CAMPSWESADDLE MTN.SWETWIN LAKES SWETWELVEMILECREEK SWESKALKAHOSUMMIT SWEDALY CREEK SWELOLO PASS SWERO LineBitterroot Rivernear Missoula MT
  • 22. • Snowpack Peaks– Between Apr 22 & 26 – two - three weeks later than normal– Only the Flathead peaked at normal– All other basins peaked between 80 & 95% of normal– Worse snowpack further south• Despite late peak, snowpack has been melting rapidly,faster than average and snowpack is currently belowaverage• Soil moisture conditions have trended downward sinceWY 2011, would expect summer to be even drier thanlast year without well above average summer precip• May 1 Runoff forecasts are favorable in northern basinsand below average to poor in southern basins• Because of rapid snowpack melt, anticipate June 1 andextended summer forecasts to be below averageReview
  • 23. The U.S. Department of Agriculture (USDA) prohibits discrimination against its customers,employees and applicants for employment on the bases of race, color, national origin, age,disability, sex, gender identity, religion, reprisal, and where applicable, political beliefs, maritalstatus, familial or parental status, sexual orientation, or all or part of an individual’s income isderived from any public assistance program, or protected genetic information in employment or inany program or activity conducted or funded by the Department. (Not all prohibited bases apply toall programs and/or employment activities.)If you wish to file an employment complaint, you must contact your agency’s EEO Counselorwithin 45 days of the date of the alleged discriminatory act, event, or in the case of a personnelaction. Additional information can be found online athttp://www.ascr.usda.gov/complaint_filing_file.html.If you wish to file a Civil Rights program complaint of discrimination, complete the USDA ProgramDiscrimination Complaint Form, found online athttp://www.ascr.usda.gov/complaint_filing_cust.html, or at any USDA office, or call (866) 632-9992to request the form. You may also write a letter containing all of the information requested in theform. Send your completed complaint form or letter to us by mail at U.S. Department ofAgriculture, Director, Office of Adjudication, 1400 Independence Avenue, S.W., Washington, D.C.20250-9419, by fax at (202) 690-7442, or email at program.intake@usda.gov.Individuals who are deaf, hard of hearing or have speech disabilities and you wish to file either anEEO or program complaint please contact USDA through the Federal Relay Service at (800) 877-8339 or (800) 845-6136 (in Spanish). Persons with disabilities, who wish to file a programcomplaint, please see information above on how to contact us by mail or by email. If you requirealternative means of communication for program information (e.g., Braille, large print, audiotape,etc.), please contact USDA’s TARGET Center at (202) 720-2600 (voice and TDD).