YUKON SNOW SURVEY BULLETIN & WATER SUPPLY FORECAST 1, 213 Prepared and issued by: Water Resources Branch Environment Yukon
PREFACE The Yukon Snow Survey Bulletin and Water Supply Forecast is prepared and issued three times annually - after ch 1 st, April 1 st and 1 st - by Environment Yukon s Water Resources Branch. The bulletin provides a summary of winter meteorological and streamflow conditions for Yukon, as well as current snow depth and snow water equivalent observations for 56 locations. This information is used to make projections of total volume runoff for the summer period and an estimate of peak flow for the main river basins and sub-basins including the upper and lower Yukon, Pelly, Stewart, Liard, Alsek, Porcupine and Peel Rivers. Information about the bulletin, snowpack conditions or streamflow projections can be obtained by contacting: Jonathan Kolot Richard owicz Hydrology Technologist Manager, Hydrology (867) 667-3234 (867) 667-3223 jonathan.kolot@gov.yk.ca richard.janowicz@gov.yk.ca NETWORK CHANGES for 213 As of 21, snow surveys are no longer conducted at Clay Creek, Profile Mountain, Duke River or Arrowhead Lake. This bulletin as well as earlier editions is available online at: www.env.gov.yk.ca/air-water-waste/snow_survey.php ISSN 175-883X It is recommended that reference to this report be made in the following form: Yukon Snow Survey Bulletin and Water Supply Forecast Water Resources Branch Department of Environment Government of Yukon Box 273, Whitehorse, Yukon Y1A 2C6 Yukon Snow Survey 213 2
ACKNOWLEDGMENTS The Yukon Snow Survey Bulletin and Water Supply Forecast is published three times annually: after ch 1 st, April 1 st, and 1 st. The Bulletin forms part of the Yukon Snow Survey Program administered by the Water Resources Branch, Department of Environment, Government of Yukon. Other agencies that contribute significantly to the Snow Survey Program by providing data, assistance and information for the bulletin are: Meteorologist, Wildland Fire Management, Yukon Department of Community Services, Whitehorse Officer in Charge, Water Survey of Canada, Whitehorse Agencies cooperating with Environment Yukon in the Snow Survey Program are: Client Service and Inspections Branch, Yukon Department of Energy Mines and Resources Information Management and Technology Branch, Yukon Department of Environment B.C. Ministry of Environment, Water Stewardship Division USDA Natural Resources Conservation Service Yukon Department of Highways and Public Works Parks Canada Yukon Energy Corporation Yukon Snow Survey 213 3
YUKON TERRITORY SNOWPACK CONDITIONS AND RUNOFF PROJECTION WEATHER Temperatures were well below normal for the month of April. Late in the month, areas throughout southern Yukon received unseasonably high snowfall; some weather stations recorded more than 2mm over a two-day period. This late-month precipitation created monthly anomalies in excess of 2% throughout much of southwest and southeast Yukon. Such anomalies are somewhat misleading, however, as April is typically the driest month of year. SNOWPACK Due to cooler than average April temperatures, the 1 st Yukon snowpack is well above normal. The delay in spring melt was taken into account when calculating percentages of normal; April averages were used in place of averages. The overall Yukon snowpack is quite variable, ranging from below normal to well above normal. The Porcupine River and Peel River watersheds are near normal, whereas the Haines Junction area is below normal. By contrast, there is an above-normal snowpack in much of southern Yukon with well-above-normal values in the Dawson area and an area extending south and east from Faro and Ross River to the headwaters of the Liard River. STREAMFLOW Streamflow conditions throughout Yukon are generally near normal. The Stewart River is slightly below normal while the Alsek River is well above normal. The upper Yukon, Pelly, Porcupine, Liard and Peel Rivers are near normal. Streamflow during this period represents winter baseflow, which provides an indication of winter groundwater contributions. Yukon Snow Survey 213 4
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millimetres of water YUKON RIVER BASIN Snowpack conditions in the Yukon River basin range from well above normal in the southeastern portion of the basin to above normal in south-central regions and normal in northern regions. Overall conditions for the Yukon River basin are generally above normal. UPPER YUKON RIVER SUB-BASIN (SOUTHERN LAKES) Snowpack conditions in the upper Yukon River watershed are above normal. Values range from 13 percent of normal at Atlin to 17 percent of normal at Tagish; which is a 38-year record. The basin-wide average has been estimated to be 134 percent of normal. UPPER YUKON RIVER SUB-BASIN (SOUTHERN LAKES/WHITEHORSE) 4 35 3 25 2 15 5 GREATER THAN HISTORICAL MAXIMUM LESS THAN HISTORICAL MINIMUM 1-1-Apr 1- Basin average snowpack based on selected snow courses Mean 213 Yukon Snow Survey 213 8
percent of normal millimetres of water WHITEHORSE AREA Snowpack conditions in the Whitehorse area are above normal for 1 st. Values range from 117 percent of normal at Whitehorse Airport to 17 percent of normal at Tagish. An area-wide average is estimated to be 139 percent of normal. 2 15 WHITEHORSE AREA GREATER THAN HISTORICAL MAXIMUM 5 LESS THAN HISTORICAL MINIMUM 1-1-Apr 1- Basin average snowpack based on selected snow courses Mean 213 35 ACCUMULATED PRECIPITATION Whitehorse 3 25 2 15 5 Oct Dec Feb Apr Jun MONTHLY PRECIP PRECIP TO DATE Yukon Snow Survey 213 9
DISCHARGE (m 3 /s) Note: The Tagish snow pillow went offline early in the winter necessitating the use of data provided by Water Resources Wolf Creek Subalpine snow pillow to illustrate build-up of the snow pack in the Whitehorse area. The three-year mean was developed using data from 29-212. YUKON RIVER AT WHITEHORSE.. 1. 211 212 213 AVERAGE FLOW ('4-'13) MEAN MONTHLY FLOW Yukon Snow Survey 213 1
ELEVATION (m) YUKON RIVER and MARSH LAKE The mean elevation of sh Lake during April was 654.127m or.197m below normal. Yukon River at Whitehorse mean discharge during April was 94 percent of normal. Given normal summer meteorological conditions, volume runoff and peak flows for the season are each expected to be 125 and 13 percent of normal, respectively. MARSH LAKE NEAR WHITEHORSE 658. 657. 656. 655. 654. 653. 211 212 213 AVERAGE ELEVATION ('76-'13) MEAN MONTHLY ELEVATION Yukon Snow Survey 213 11
percent of normal millimetres of water PELLY RIVER SUB-BASIN Snowpack conditions in the Pelly River watershed are well above normal. Values of snow water equivalent range from 135 percent of normal at Twin Creeks to 192 percent of normal at Hoole River; which is a 36-year record. A basin-wide average has been estimated to be 144 percent of normal. Mean April streamflow for the watershed was 16 percent of normal as indicated by the Pelly River below Vangorda Creek. Given normal summer meteorological conditions, volume runoff and peak flows are expected to be 14 percent and 145 percent of normal, respectively. 3 25 2 15 5 PELLY BASIN GREATER THAN HISTORICAL MAXIMUM LESS THAN HISTORICAL MINIMUM 1-1-Apr 1- Basin average snowpack based on selected snow courses Mean 213 7 ACCUMULATED PRECIPITATION Ross River 6 5 4 3 2 Oct Dec Feb Apr Jun MONTHLY PRECIP PRECIP TO DATE Yukon Snow Survey 213 12
DISCHARGE (m 3 /s) PELLY RIVER BELOW VANGORDA CREEK 1 211 212 213 AVERAGE FLOW ('72-'13) MEAN MONTHLY FLOW Yukon Snow Survey 213 13
percent of normal millimetres of water STEWART RIVER SUB-BASIN Snowpack conditions in the Stewart River watershed are slightly above normal for 1 st. Values of snow water equivalent range from 98 percent of normal at Calumet to 116 percent of normal at Plata Airstrip. A basinwide average has been estimated to be 17 percent of normal. Mean April streamflow for the watershed was 91 percent of normal as indicated by the Stewart River at the Mouth. Given normal summer meteorological conditions, volume runoff and peak flows for the season are each expected to be 11 and 115 percent of normal, respectively. 3 25 2 15 5 STEWART BASIN GREATER THAN HISTORICAL MAXIMUM LESS THAN HISTORICAL MINIMUM 1-1-Apr 1- Basin average snowpack based on selected snow courses Mean 213 3 ACCUMULATED PRECIPITATION o 25 2 15 5 Oct Dec Feb Apr Jun MONTHLY PRECIP PRECIP TO DATE Yukon Snow Survey 213 14
DISCHARGE (m 3 /s) STEWART RIVER AT THE MOUTH 1 211 212 213 AVERAGE FLOW ('64-'13) MEAN MONTHLY FLOW Yukon Snow Survey 213 15
percent of normal millimetres of water CENTRAL YUKON RIVER BASIN (CARMACKS AREA) Snowpack conditions in the Carmacks area are above normal for 1 st. Values of snow water equivalent range from 126 percent of normal at MacIntosh to 134 percent of normal at Mt. Berdoe. An areawide average has been estimated to be 127 percent of normal. 25 2 15 CENTRAL YUKON BASIN GREATER THAN HISTORICAL MAXIMUM 5 LESS THAN HISTORICAL MINIMUM 1-1-Apr 1- Basin average snowpack based on selected snow courses Mean 213 ACCUMULATED PRECIPITATION Carmacks 3 25 2 15 5 Oct Dec Feb Apr Jun MONTHLY PRECIP PRECIP TO DATE Yukon Snow Survey 213 16
percent of normal millimetres of water LOWER YUKON RIVER BASIN (DAWSON AREA) Snowpack conditions in the Dawson area are well above normal for 1 st. Values of snow water equivalent range from 14 percent of normal at Grizzly Creek to a record of 17 percent of normal at Midnight Dome; which is a 38-year record. An area-wide average has been estimated to be 137 percent of normal. 3 25 2 15 LOWER YUKON BASIN GREATER THAN HISTORICAL MAXIMUM 5 LESS THAN HISTORICAL MINIMUM 1-1-Apr 1- Basin average snowpack based on selected snow courses Mean 213 3 ACCUMULATED PRECIPITATION Dawson 25 2 15 5 Oct Dec Feb Apr Jun MONTHLY PRECIP PRECIP TO DATE Yukon Snow Survey 213 17
percent of normal millimetres of water LIARD RIVER BASIN Snowpack conditions within the Liard River watershed are above normal. Values of snow water equivalent range from 125 percent of normal at the Frances River to 154 percent of normal at Tintina Airstrip. A basin-wide average has been estimated to be 141 percent of normal. Mean April streamflow for the Liard River upstream of Upper Liard was percent of normal. Given normal summer meteorological conditions, volume runoff and peak flows for the season are expected to be 14 percent and 145 percent of normal, respectively. 35 3 25 2 15 5 LIARD BASIN GREATER THAN HISTORICAL MAXIMUM LOWER THAN HISTORICAL MINIMUM 1-1-Apr 1- Basin average snowpack based on selected snow courses Mean 213 35 ACCUMULATED PRECIPITATION Watson Lake 3 25 2 15 5 Oct Dec Feb Apr Jun MONTHLY PRECIP PRECIP TO DATE Yukon Snow Survey 213 18
DISCHARGE (m 3 /s) LIARD RIVER AT UPPER CROSSING 1 211 212 213 AVERAGE FLOW ('6-'13) MEAN MONTHLY FLOW Yukon Snow Survey 213 19
percent of normal millimetres of water ALSEK RIVER BASIN Snowpack conditions within the Alsek River watershed, although variable, are mostly below normal for 1 st. Values of snow water equivalent range from 64 percent of normal at Summit to 124 percent of normal at Alder Creek. A basin-wide average has been estimated to be 93 percent of normal. Mean monthly streamflow for April as indicated by the Alsek River above Bates River was 131 percent of normal. The Alsek River is primarily a glacial regime type, which is largely dependent on summer temperatures. Given normal summer meteorological conditions, volume runoff and peak flows for the season are expected to be 95 and percent of normal, respectively. 4 35 3 25 2 15 5 ALSEK BASIN GREATER THAN HISTORICAL MAXIMUM LESS THAN HISTORICAL MINIMUM 1-1-Apr 1- Basin average snowpack based on selected snow courses Mean 213 3 ACCUMULATED PRECIPITATION Haines Junction 25 2 15 5 Oct Dec Feb Apr Jun MONTHLY PRECIP PRECIP TO DATE Yukon Snow Survey 213 2
DISCHARGE (m 3 /s) ALSEK RIVER ABOVE BATES RIVER 1 211 212 213 AVERAGE FLOW ('74-'13) MEAN MONTHLY FLOW Yukon Snow Survey 213 21
DISCHARGE (m 3 /s) millimetres of water PEEL RIVER BASIN Snowpack conditions in the Peel River watershed are near normal with values of snow water equivalent ranging from 92 percent of normal at Blackstone to 95 percent of normal at Ogilvie. A basin-wide average has been estimated to be 95 percent of normal. 25 2 15 PEEL BASIN GREATER THAN HISTORICAL MAXIMUM Mean monthly streamflow for April as indicated by the Peel River above Canyon Creek station was 13 percent of normal. Given normal summer meteorological conditions, volume runoff and peak flows for the season are expected to be 95 and percent of normal, respectively. 5 LESS THAN HISTORICAL MINIMUM 1-1-Apr 1- Basin average snowpack based on selected snow courses Mean 213 PEEL RIVER ABOVE CANYON CREEK 1 211 212 213 AVERAGE FLOW ('62-'13) MEAN MONTHLY FLOW Yukon Snow Survey 213 22
DISCHARGE (m 3 /s) millimetres of water PORCUPINE RIVER BASIN Snowpack conditions in the Porcupine River watershed are near normal with values of snow water equivalent ranging from 79 percent of normal at Eagle Plains to 112 percent of normal at Old Crow. A basin-wide average has been estimated to be 95 percent of normal. Mean April streamflow for the basin as indicated by the Porcupine River near the International Boundary is 97 percent of normal. Given normal summer meteorological conditions, volume runoff and peak flows for the season are expected to be 95 and percent of normal, respectively. 25 2 15 5 PORCUPINE BASIN GREATER THAN HISTORICAL MAXIMUM LESS THAN HISTORICAL MINIMUM 1-1-Apr 1- Basin average snowpack based on selected snow courses Mean 213 PORCUPINE RIVER NEAR INTERNATIONAL BORDER 1 211 212 213 AVERAGE FLOW ('87-'13) MEAN MONTHLY FLOW Yukon Snow Survey 213 23
Drainage Basin and Snow Course For Sample Date: 213-5-1 This Year Water Content Name Number Elev Date of Snow Water Last Average Yrs (m) Survey Depth Content Year of (cm) (mm) (mm) (mm) Rec Alsek River Basin Canyon Lake 8AA-SC1 116 4/3/213 5 85 66 39 36 Alder Creek 8AA-SC2 768 4/29/213 76 199 124 83 32 Aishihik Lake 8AA-SC3 945 4/3/213 42 16 32 48 19 Haines Junction Farm 8AA-SC4 61 4/25/213 36 66 76 54 13 Summit 8AB-SC3 4/26/213 81 172 294 213 33 Yukon River Basin Tagish 9AA-SC1 18 4/25/213 18 252 126 117 37 Montana Mountain 9AA-SC2 12 4/25/213 12 192 151 117 37 Log Cabin (B.C.) 9AA-SC3 884 4/3/213 147 494 571 347 55 Atlin (B.C) 9AA-SC4 73 5/1/213 6 126 46 46 Mt McIntyre B 9AB-SC1B 197 4/3/213 95 211 214 133 37 Whitehorse Airport 9AB-SC2 7 4/3/213 53 12 95 25 46 Meadow Creek 9AD-SC1 1235 4/3/213 154 368 33 278 37 Jordan Lake 9AD-SC2 93 4/3/213 78 168 122 88 26 Morley Lake 9AE-SC1 824 4/29/213 89 218 48 85 25 Mount Berdoe 9AH-SC1 135 4/29/213 78 147 132 64 37 Satasha Lake 9AH-SC3 116 4/29/213 62 115 N.S. 29 24 Williams Creek 9AH-SC4 914 4/29/213 65 123 N.S. 43 16 Twin Creeks 9BA-SC2 9 4/29/213 99 256 28 146 36 Hoole River 9BA-SC3 136 4/3/213 13 265 126 88 36 Burns Lake 9BA-SC4 1112 4/29/213 112 288 288 216 27 Finlayson Airstrip 9BA-SC5 988 4/3/213 82 186 53 51 26 Fuller Lake 9BB-SC3 1126 4/29/213 96 237 248 28 27 Russell Lake 9BB-SC4 16 4/29/213 14 25 314 222 26 Rose Creek 9BC-SC1 18 5/1/213 79 193 8 35 19 Mount Nansen 9CA-SC1 121 4/29/213 61 14 19 36 MacIntosh 9CA-SC2 116 4/29/213 78 129 N.S. 47 35 Burwash Airstrip 9CA-SC3 81 4/25/213 32 59 8 36 Burwash Uplands 9CA-SC6 18 No Surv N.S. 8 4 Beaver Creek 9CB-SC1 655 4/25/213 47 13 26 3 38 Chair Mountain 9CB-SC2 167 4/26/213 64 124 38 1 White River 9CB-SC3 823 No Surv N.S. 2 Casino Creek 9CD-SC1 165 4/29/213 8 127 16 122 35 Pelly Farm 9CD-SC3 472 4/28/213 43 9 34 19 27 Plata Airstrip 9DA-SC1 83 4/29/213 87 222 225 149 34 Withers Lake 9DB-SC1 975 4/29/213 84 23 311 238 27 Code "E" - Estimate Yukon Snow Survey 213 24
Drainage Basin and Snow Course For Sample Date: 213-5-1 This Year Water Content Name Number Elev Date of Snow Water Last Average Yrs (m) Survey Depth Content Year of (cm) (mm) (mm) (mm) Rec Yukon River Basin Rackla Lake 9DB-SC2 14 4/29/213 78 17 248 28 26 o Airport A 9DC-SC1A 54 4/29/213 41 12 12 42 o Airport B 9DC-SC1B 54 4/29/213 36 9 11 25 Edwards Lake 9DC-SC2 83 4/29/213 8 18 231 159 26 Calumet 9DD-SC1 131 4/29/213 77 192 236 194 32 King Solomon Dome 9EA-SC1 18 4/26/213 95 222 131 16 38 Grizzly Creek 9EA-SC2 975 5/1/213 85 186 123 38 Midnight Dome 9EB-SC1 855 5/1/213 253 188 128 38 Porcupine River Basin Riff's Ridge 9FA-SC1 65 4/3/213 81 138 147 118 26 Eagle Plains 9FB-SC1 71 4/3/213 76 129 151 128 28 Eagle River 9FB-SC2 34 4/3/213 63 127 133 96 28 Old Crow 9FD-SC1 299 4/26/213 54 131 93 87 29 Liard River Basin Watson Lake Airport 1AA-SC1 685 4/3/213 85 24 48 46 48 Tintina Airstrip 1AA-SC2 167 4/3/213 113 318 232 181 36 Pine Lake Airstrip 1AA-SC3 995 4/3/213 116 298 258 194 37 Ford Lake 1AA-SC4 111 4/3/213 116 28 195 17 25 Frances River 1AB-SC1 73 4/26/213 84 23 72 87 38 Hyland River 1AD-SC1 855 5/1/213 96 26 238 19 37 Peel River Basin Blackstone River 1MA-SC1 92 5/1/213 62 97 71 37 Ogilvie River 1MA-SC2 595 4/3/213 6 11 73 36 Bonnet Plume Lake 1MB-SC1 112 4/29/213 81 191 221 197 27 Alaska Snow Courses Eaglecrest 8AK-SC1 35 4/29/213 211 82 945 444 29 Moore Creek Bridge 8AK-SC2 7 5/2/213 26 686 46 5 21 Code "E" - Estimate Yukon Snow Survey 213 25
INDEX OF YUKON SNOW COURSES NAME NUMBER ELEVATION (m) LATITUDE LONGITUDE AGENCY YUKON RIVER BASIN Tagish 9AA-SC1 18 6 o 17' 134 o 11' 2 Montana Mountain 9AA-SC2 12 6 o 8' 134 o 44' 2 Log Cabin (B.C.) 9AA-SC3 884 59 o 46' 134 o 58' 2 Atlin (B.C.) 9AA-SC4 73 59 o 34' 133 o 42' 3 Mt. McIntyre (B) 9AB-SC1B 197 6 o 39' 135 o 8' 1 Whitehorse Airport 9AB-SC2 7 6 o 42' 135 o 4' 1 Meadow Creek 9AD-SC1 1235 6 o 35' 133 o 5' 2 Jordan Lake 9AD-SC2 93 6 o 52' 132 o 5' 2 Morley Lake 9AE-SC1 824 6 o ' 132 o 7' 2 Mount Berdoe 9AH-SC1 135 62 o 2' 136 o 14' 2 Satasha Lake 9AH-SC3 116 61 o 29' 136 o 16' 2 Williams Creek 9AH-SC4 914 6 o 21' 136 o 43' 2 Twin Creeks 9BA-SC2 9 62 o 37' 131 o 16' 2 Hoole River 9BA-SC3 136 61 o 32' 131 o 36' 2 Burns Lake 9BA-SC4 1112 62 o 17' 129 o 57' 2 Finlayson Airstrip 9BA-SC5 988 61 o 42' 13 o 46' 2 Fuller Lake 9BB-SC3 1126 62 o 58' 13 o 46' 2 Rose Creek 9BC-SC1 18 62 o 2' 133 o 23' 2 Russell Lake 9BB-SC4 16 63 o 12' 133 o 29' 2 Mount Nansen 9CA-SC1 121 62 o 2' 137 o 3' 2 Macintosh 9CA-SC2 116 61 o 43' 137 o 2' 2 Burwash Airstrip 9CA-SC3 81 61 o 23' 139 o 3' 2 Duke River 9CA-SC5 131 61 o 15' 138 o 59' 6 Beaver Creek 9CB-SC1 655 62 o 25' 14 o 51' 2 Chair Mountain 9CB-SC2 167 62 o 4' 14 o 48' 2 White River 9CB-SC3 823 61 o 55' 14 o 32' 2 Casino Creek 9CD-SC1 1164 62 o 44' 138 o 48' 2 Pelly Farm 9CD-SC3 472 62 o 5' 137 o 2' 8 Plata Airstrip 9DA-SC1 83 63 o 31' 132 o 3' 2 Arrowhead Lake 9DA-SC2 112 63 o 42' 131 o 1' 2 Withers Lake 9DB-SC1 975 63 o 59' 132 o 18' 2 Rackla Lake 9DB-SC2 14 64 o 17' 133 o 15' 2 o Airport (A) 9DC-SC1A 54 63 o 38' 135 o 53' 2 o Airport (B) 9DC-SC1B 54 63 o 38' 135 o 53' 2 Edwards Lake 9DC-SC2 83 63 o 42' 134 o 18' 2 Calumet 9DD-SC1 131 63 o 55' 135 o 24' 2 King Solomon Dome 9EA-SC1 18 63 o 52' 138 o 56' 2 Grizzly Creek 9EA-SC2 975 64 o 26' 138 o 16 2 Boundary (Alaska) 9EC-SC2 5 64 o 5' 141 o 27' 4 Midnight Dome 9EB-SC1 855 64 o 4' 139 o 24' 2 Yukon Snow Survey 213 26
NAME NUMBER ELEVATION (m) LATITUDE LONGITUDE AGENCY LIARD RIVER BASIN Watson Lake Airport 1AA-SC1 685 6 o 7' 128 o 5' 2 Tintina Airstrip 1AA-SC2 167 61 o 5' 131 o 15' 2 Pine Lake Airstrip 1AA-SC3 995 6 o 6' 13 o 56' 2 Ford Lake 1AA-SC4 111 6 o 47' 131 o 28' 2 Frances River 1AB-SC1 73 6 o 35' 129 o 11' 2 Hyland River 1AD-SC1 855 61 o 31' 128 o 16' 2 ALSEK RIVER BASIN Canyon Lake 8AA-SC1 116 61 o 7' 136 o 59' 7 Alder Creek 8AA-SC2 768 6 o 22' 137 o 6' 2 Aishihik Lake 8AA-SC3 945 61 o 12' 137 o ' 7 Haines Junction Farm 8AA-SC4 61 6 o 45' 137 o 34' 2 Clay Creek 8AB-SC2 67 6 o 9' 137 o 56' 6 Summit 8AB-SC3 6 o 51' 137 o 47' 2 Profile Mountain 8AB-SC4 9 6 o 38' 137 o 56' 6 PEEL RIVER BASIN Blackstone River 1MA-SC1 92 64 o 57' 138 o 15' 2 Ogilvie River 1MA-SC2 595 65 o 21' 138 o 18' 2 Bonnet Plume Lake 1MB-SC1 112 64 o 18' 132 o ' 2 PORCUPINE RIVER BASIN Riff's Ridge 9FA-SC1 65 65 o 57' 137 o 22' 2 Eagle Plains 9FB-SC1 71 66 o 22' 136 o 44' 2 Eagle River 9FB-SC2 34 66 o 27' 136 o 43' 2 Old Crow 9FD-SC1 299 67 o 34' 139 o 51' 6 ALASKA SNOW COURSES Eaglecrest 34J3 35 58 o 17' 134 o 32' 4 Moore Creek Bridge 34K2 71 59 o 31' 135 o 15' 4 Numbers refer to Agencies cooperating in the Yukon Snow Surveys: 1. Department of Environment, Government of Yukon 2. Dept of Energy Mines and Resources Yukon 3. British Columbia Ministry of Environment 4. USDA Natural Resources Conservation Service 5. Yukon Transportation and Highways 6. Parks Canada 7. Yukon Energy Corp. 8. Private Contract Yukon Snow Survey 213 27
Location of Water Resource Snow Courses Yukon Snow Survey 213 28