United States Natural Resources Water and Climate Center Department of Conservation Portland, Oregon Agriculture Service S N O W - P R E C I P I T A T I O N U P D A T E Based on Mountain Data from NRCS SNOTEL Sites As of SATURDAY: FEBRUARY 27 , 2021 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ ALASKA Arctic and Northwest Atigun Pass 4800 -M -M * 3.3 4.7 70 Imnaviat Creek 3050 -M -M * 1.5 2.6 58 Kelly Station 310 4.5 -M * -M -M * Prudhoe Bay 30 -M -M * 1.4 2.5 56 Sagwon 1000 -M -M * 2.1 2.6 81 ----- ----- Basin Index (%) * 67 Central Yukon American Creek 1050 3.1 -M * 2.9 -M * Atigun Pass 4800 -M -M * 3.3 4.7 70 Eagle Summit 3650 -M -M * 3.9 4.7 83 Fort Yukon 430 -M -M * 2.1 3.0 70 Jack Wade Jct 3585 3.7 -M * 3.1 -M * Monument Creek 1850 4.3 4.0 108 4.3 4.7 91 Mt. Ryan 2800 5.1 4.3 119 5.1 4.8 106 Upper Chena 2850 -M 5.5 * 6.0 5.8 103 Upper Nome Creek 2520 -M -M * -M 4.3 * ----- ----- Basin Index (%) 113* 89 Copper River Fielding Lake 3000 6.5 -M * 6.4 -M * Gulkana River 1830 4.9 -M * 5.8 -M * Horsepasture Pass 4300 -M -M * -M -M * Look Eyrie 5040 -M -M * 3.1 -M * May Creek 1610 6.6 4.5 147 6.6 5.4 122 Mt. Eyak 1405 22.9 21.6 106 55.3 -M * Nicks Valley 4280 -M -M * 3.3 -M * Strawberry Reef 30 -M -M * 34.3 -M * Upper Tsaina River 1750 16.8 16.0 105 21.4 23.8 90 ----- ----- Basin Index (%) 110* 96* Kenai Peninsula Anchor River Divide 1653 15.8 10.1 156 16.3 14.2 115 Cooper Lake 1200 15.3 13.0 118 23.2 22.6 103 Exit Glacier 400 18.9 15.8 120 50.4 -M * Grandview 1100 27.9 26.4 106 31.1 34.5 90 Grouse Creek Divide 700 23.5 14.6 161 39.3 32.9 119 Indian Pass 2350 22.6 19.0 119 23.5 21.7 108 Kenai Moose Pens 300 3.8 3.9 97 8.0 7.2 111 Lower Kachemak Creek 1915 -M -M * -M -M * Mcneil Canyon 1320 12.7 9.0 141 15.2 14.7 103 Middle Fork Bradley 2300 -M -M * 32.2 28.8 112 Moose Inc 132 -M -M * -M -M * Mt. Alyeska 1540 30.3 26.2 116 36.8 39.5 93 Nuka Glacier 1250 -M -M * 49.2 47.7 103 Port Graham 300 6.7 6.5 103 43.4 43.4 100 Schor Garden 393 -M -M * -M -M * Summit Creek 1400 11.0 10.0 110 7.5 13.8 54 Turnagain Pass 1880 33.0 27.6 120 37.9 33.9 112 ----- ----- Basin Index (%) 122 102 Matanuska-Susitna Basins Alexander Lake 160 9.1 -M * 12.2 -M * East Palmer 230 1.5 -M * 1.8 -M * Frostbite Bottom 2700 10.9 -M * 10.5 -M * Horsepasture Pass 4300 -M -M * -M -M * Independence Mine 3550 10.8 10.2 106 12.4 13.1 95 Monahan Flat 2710 5.9 -M * 6.4 6.9 93 Moraine 2100 6.8 6.7 101 9.2 9.9 93 Spring Creek 580 -M -M * 5.6 -M * Susitna Valley High 375 6.7 7.1 94 9.1 10.4 88 Tokositna Valley 850 13.2 10.2 129 13.4 17.0 79 ----- ----- Basin Index (%) 110* 88 Northern Cook Inlet Anchorage Hillside 2080 10.8 8.3 130 12.2 11.9 103 East Palmer 230 1.5 -M * 1.8 -M * Frostbite Bottom 2700 10.9 -M * 10.5 -M * Indian Pass 2350 22.6 19.0 119 23.5 21.7 108 Mcneil River SGS 140 -M -M * -M -M * Moraine 2100 6.8 6.7 101 9.2 9.9 93 Mt. Alyeska 1540 30.3 26.2 116 36.8 39.5 93 Spring Creek 580 -M -M * 5.6 -M * ----- ----- Basin Index (%) 117 98 Southeast Flower Mountain 2510 32.9 -M * 4.1 -M * Heen Latinee 2065 17.5 -M * 40.4 -M * Long Lake 850 26.6 27.2 98 -M 84.8 * Moore Creek Bridge 2250 -M -M * 29.0 23.6 123 ----- ----- Basin Index (%) 98* 123* Southwest Aniak 80 -M -M * 8.3 -M * Checkers Creek 326 -M -M * -M -M * Johnsons Camp 25 -M -M * 2.7 -M * Pargon Creek 100 -M -M * 4.8 5.0 96 Rocky Point 250 -M -M * 2.9 4.7 62 ----- ----- Basin Index (%) * 79* Tanana Chena Lakes 500 3.7 -M * -M -M * Chisana 3320 2.5 4.0 62 2.3 -M * Fielding Lake 3000 6.5 -M * 6.4 -M * Granite Crk 1240 3.2 3.5 91 3.4 3.6 94 Kantishna 1550 5.9 -M * 5.1 3.8 134 Little Chena Ridge 2000 3.7 4.2 88 4.3 4.7 91 Look Eyrie 5040 -M -M * 3.1 -M * Monahan Flat 2710 5.9 -M * 6.4 6.9 93 Monument Creek 1850 4.3 4.0 108 4.3 4.7 91 Mt. Ryan 2800 5.1 4.3 119 5.1 4.8 106 Munson Ridge 3100 7.2 5.9 122 6.0 6.6 91 Nenana 415 -M -M * 3.2 -M * Teuchet Creek 1640 4.0 3.3 121 3.9 3.7 105 Tok 1630 -M -M * -M -M * Upper Chena 2850 -M 5.5 * 6.0 5.8 103 Upper Nome Creek 2520 -M -M * -M 4.3 * ----- ----- Basin Index (%) 103* 100 Western Gulf Cooper Lake 1200 15.3 13.0 118 23.2 22.6 103 Esther Island 50 -M -M * -M 71.4 * Exit Glacier 400 18.9 15.8 120 50.4 -M * Grouse Creek Divide 700 23.5 14.6 161 39.3 32.9 119 Mt. Eyak 1405 22.9 21.6 106 55.3 -M * Nicks Valley 4280 -M -M * 3.3 -M * Nuchek 50 -M -M * 71.1 -M * Nuka Glacier 1250 -M -M * 49.2 47.7 103 Port San Juan 50 -M -M * 67.0 65.6 102 Seal Island 20 -M -M * 33.1 -M * Sugarloaf Mtn 550 -M -M * 35.7 34.3 104 Tatitlek 50 -M -M * 34.3 35.4 97 Upper Tsaina River 1750 16.8 16.0 105 21.4 23.8 90 ----- ----- Basin Index (%) 120* 103 Western Interior Aniak 80 -M -M * 8.3 -M * Atigun Pass 4800 -M -M * 3.3 4.7 70 Bettles Field 640 4.1 5.4 76 2.7 5.7 47 Coldfoot 1040 2.7 5.2 52 3.4 5.5 62 Galena AK 410 4.4 -M * -M -M * Gobblers Knob 2030 -M -M * 3.4 6.1 56 Hozatka Lake 206 -M -M * -M -M * Kanuti Lake 524 -M -M * -M -M * McGrath 340 7.4 -M * 7.1 -M * Telaquana Lake 1275 6.5 -M * 7.6 -M * ----- ----- Basin Index (%) 64* 58* ----------------------------------------------------------------------------- -M = Missing data * = Data may not provide a valid measure of conditions. Units = inches for the Current and Normal Snow Water Equivalent and Total Precipitation values If the Basin Index (%) value is flagged as potentially invalid, care should be taken to evaluate if the value is representative of conditions in the basin. The SNOW WATER EQUIVALENT Percent of Median represents the snow water equivalent found at selected SNOTEL sites in or near the basin compared to the Median value for those sites on this day. The TOTAL PRECIPITATION Percent of Average represents the total precipitation (beginning October 1st) found at selected SNOTEL sites in or near the basin compared to the Average value for those sites on this day. Contact your state water supply staff for assistance. Medians and averages are calculated for the period 1981-2010. Provisional data, subject to revision. * Site -- Either: (a) the current value is missing; (b) the median or average for the day is not available or is zero; or (c) for snow water equivalent, the median for the day is less than 10% of the maximum median value for the year. * Basin - More than half of the sites within the basin are flagged with *, preventing the calculation of a meaningful basin index. The basin index is calculated as the sum of the valid current values divided by the sum of the corresponding medians (for snow water equivalent) or averages (for precipitation) and the resulting fraction multiplied by 100.