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Water Supply Outlook for Colorado and New Mexico - Page 4 SOUTH PLATTE RIVER 1/A TERS D IN COLORADO ecr SUMMARY of SNOW MEASUREMENTS c VG y ( R� 0 b C I G F_ Ed! Q A S K E A (COMPARISON WITH PREVIOUS YEARS( Tni Y AR A ♦t" t .. .�.^e:........ 01 RI N . ..... S E S SNO .. .::..:::. .::..... .:. .< ,;,sw.wwwq .....:... .. ......... ,.. VER BAST Number of - HATER AS PERCENT OF .... and o Courses B- AT A ra 1 RSH gad ust Yea 961 80 A e.age A,.q...I..ME fie. �, ':::.s.c%. ;:'�`;`::".� �.. G A hF - _rdBig Thompson 7 7285 Boulder 5 54 74 J A C K S )NL ';::;::::::::Ft Eolh i :: �' ttstptg - Cache La Poudre 8 73 94 ## 1 >x S h_::�:; �,r ,• ,...... _.,,.r... � Clear Creek u 5 65 84 ` Saint Vrain 3 53 70 io� * A South Platte 96 w 3t ,�>« Ot t gs Ff IrEi#t8� ter.: .ticran G ' N G R A N D ( o °oe BbttEF� v... .e... ....� I °o" waver ">T J air M e .: o _ - a SNOW COURSE MEASUREM8ITS 10 O 10 20 30am- - s O E CURRENT INFORMATION PAST RECORD S-U M M 1 TWATER CONTENT rxd *fir DATE SNOW WATER (INCHES( SNOW COURSE OF DEPTH CONTENT ' LEGEND SURVEY (INCHES) (INCHES) YEAR AV BO "R q 8 f R T COLORADO Forecast Point Ft it G L A � Snow Course SNOTEL Site STREAMFLOW FORECASTS SOM PLATPE BASIN Percent of 1961-80 Average ',e_ "' Over 130% Boulder Creek „ E L P A S O �7ELLERI- ® 110-10% Baltimore 2/26 20 3.9 7.6 6.0 I "11 'Boulder Falls 2/25 33 7.2 12.8 10.0 x 70- 90% Lake Eldora 2/25 30 6.0 14.1 9.4 ® Under 70% Niv of 2/25 38 8.5E 15.0 8.4 University Camp 2/25 41 10.1 16.2 14.4 YOUR WATER SUPPLY Big Thacnpson River THE SOUTH PLATTE BASIN CURRENTLY HAS THE LOWEST SNOWPACK IN Bey' Lake 3/1 32 9.OE 15.7 13.6E COLORADO AT ONLY 87% OF AVERAGE, 67co OF LAST YEAR AT THIS TIME. Deer Ridge 2/28 13 3.1 7.2 4.6 - Hidden Valley 2/28 29 7.8 6.7 8.4 THE LOWEST SNOWPACK FIGURES IN THE BASIN ARE IN THE SAINT VRAI N Lake Irene (B) 3/1 69 19.2E , 22.4 18.1 AND BOULDER WATERSHEDS AT 70% AND 74% OF AVERAGE RESPECTIVELY. longs Peak 2/26 33 7.7 12.2 8.6 Tuo Mile 2/28 36 9.1 10.3 11.8 STREAMFLOW FORECASTS IN THESE BASINS ARE ALL BELOW. AVERAGE FOR Willaw Park 3/1 43 12.0E 20.2 15.0 THIS YEAR'S IRRIGATION SEASON . THE HIGHEST STREAMFLOW FORECAST IS Cache La Poudre AT BEAR CREEK AT 106% OF AVERAGE FLOW. AN AVERAGE OF THE MAJOR Bennett Creek 2/27 25 5.9 9.6 6.1 RESERVOIRS IN THE BASIN SHOWS THE CURRENT STORAGE AT 1071"0 OF Big South 2/27 11 3.0 5.1 1.9 AVERAGE. SOIL -MOISTURE IS RATED AS ONLY FAIR THROUGHOUT MUCH OF Cameron Pass 2/27 67 22.5 27.0 23.1 THE WATERSHED. Chambers (rake 2/27 17 5.7 7.6 8.3 Deadman Hill 3/1 45 12.5E 16.7 13.4 Hourglass lake 2/27 26 5.4 8.8 5.9 Joe Wright 2/27 65 18.8 24.0 19.8 Lost Lake DISCONTINUED STREAMFLOW FORECASTS (1000 Ac. Ft.) April - September Pine Creek 2/27 8 1.5 4.3 1.9 Red Feather DISCONTINUED FORECAST POINT Forecast fie of Averi.3e 1961-80 •.•-rag^ °•- � a_ Clear Creek Bear Creek at Morrison 30 106 28.7 Baltimore (B) 2/26 20 3.9 7.6 6.0 Big Thompson River at Drake (1) 97 85 114.0 Berthoud Falls 2/26 41 9.4 14.9 11.6 Boulder Creek at Orodell 40 85 46.7 Empire 2/26 25 4.8 7.9 6.2 Cache La Poudre River at Canyon Mouth (2) 250 93 268.0 Grizzly Peak (B) 2/28 52 13.5 19.2 14.5 Clear Creek at Golden (3) 108 85 127.0 Loveland Pass 2/28 43 11.3 16.5 13.0 St. Vrain Creek at Lyons 64 81 78.8 South Boulder Creek near Eldorado Springs 42 100 42.1 Ste Vrain River South Platte River at South Platte 177 90 197.0 Copeland lake 3/1 11 3.OE 5.6 4.2 Ward 2/26 22 3.7 9.1 4.8 (II ne,..,.A ff.. plus b.-puss t„ pe.rr plant,. r11 Obvn.d ft- .gnus trans-b.- du-r plus ......paf and n.tr.rton d-,r .ns. Ill 015- ed floc .ts.r Wild Basin 2/28 33 6.5 10.3 9.8 Jisersl" IV aanb d ai..a. µ.a city a biers ase Cbraa attsa 411 . 11. South Platte River WATER SUPPLY OUTLOOK Expressed as-Poo,, Fau. Average. E.- RESERVOIR STORAGE (Thousand Ae. Ft.) Bison Reservoir 2/27 19 4.2 4.1 -- WATER W.th Respect to Usual Supply. END OF MONTH Flow Peaod Basrn or Stseam Usable Storage - C 2/25 17 3.9 6.8 5.5 and/or Usable Geneva. Park 2/ STREAM or AREA Spring Late RESERVOIR CaOaury Tha Last -e0 25 15 3.4E 4.7 3.2 Season Season Year Year Zr ,A.aaa Horseshoe Mountain.. 2/26 37 - 9.2 10.8 8.4 - Antero .16; 16 16 14 Hoosier Pass 2/25 36 9.6 14.0 10.4 Barr Lake 32' 25 21 23 Jefferson Creek 2/25 30 6.9 9.6 7.7 Coal Creek Fair Poor Mosquito 2/26 32 8.1 10.8 8.2 North Fork of South Black Hollow 8• 4 4 4 Sundance Platte Fair Poor Boyd Lake 48 39 40 36 2/25 31 4.3 5.3 3. Y Trout Creek Pass. North Fork of Cache Cache La Poudre 10; 8 9 7 2/26 20 4.3 5.3 3.9 La Poudre Fair Poor Carter Lake 114 100 94 90 Ralston Creek Fair Poor Chambers Lake 9 4 3 3 Rock Creek Fair Poor Cheesman 79 76 72 49 South Platte from Cobb Lake 34 19 20 14 Greeley to Fort Eleven Mile 98. 98 98 88 Morgan Average Fair Empire 22 14 2$ M South Platte from Fossil Creek 12 5 0 8 Fort Morgan to Gross 43 36 31 27 r Sterling Fair Fair Halligan 6 4 6 4 NS-No survey. �a�-On adjacent drainage. South Platte below Horsetooth 144. ill 130 94 Sterling Fair Fair Jackson 35 30 30 31 Julesburg 28 18 21 20 Lake Loveland 14 10 10 9 Lone Tree 9. 8 8 6 WATERSHED SNOWPACK Mariano 6 5 4 5 Based on 5 Selected Snow Courses Marshall 10 - 8 4 ~ Marston 18 11 15 15 J 35 Milton 24 15 15 14 Point of Rocks 70 66 65 62 "' 30 T s Prewitt 33 17 22 19 W , .. , x, Riverside 58 26 14 49 .4 "< Standley 42 - 38 23 I Terry 8 5 6 5 F Union 13 12 13 10 ; 20e Windsor 19 9 15 11 .80 . Horsecreek 16 11 13 12 Z 15 Vf +•'' I 10 WLW Z O adfliti Ulu F -REC DR FEB. let MAR. let APR. let MAY. let F_� *Berthoud Pass, Cameron Pass, Deadman Hill, f Hoosier Pass, University Camp. :.. krTTY+.r,*e+aF 4 1