WSP14221D

• File Number: 8210.137
• Description: Colorado River Basin-Colorado River Basin Organizations/Entities-Colorado River Forecast Committee
• Date: 5/1/1984
• Author: USDA, SCS
• Title: Colorado and New Mexico Water Supply Outlook
• Water Supply Pro - Doc Type: Report/Study

Water Supply Outlook for Colorado and New Mexico - Page 4
SOUTH PLATTE RIVER; WATERSHED /N COLORADO
® V !, N E B o R A S VC e A SUMMARY of SNOW MEASUREMENTS
- c I I I ' (COMPARISON WITH PREVIOUS YEARS)
I•'-��� Tala RIVER B TwS YEAR S SNOW
and a Cowses BASIN Number o/ WATER AS PERCENT OF.
SUB-WATERSHED Averaged usI Year 1961-90 A.erage
t
DEAaeAe
Big Thompson 7 227
\�I ♦\, 1 Boulder 5 32 166
J A C K SAo
., z$ ;34CIS, Cache La Poudre 8 96 141
v ' v
r • Vie♦ �5 ° 'Nn3 �' Clear Creek 5 123 150
\ o \ .\w�`t�� '� y .''�w ,�y,.:+; ,`#.�: i
�„ •( .; $ �,"\. r \* + z;.<. •,.<z ::.<>�g •€ I Saint Vrain
3 166 163
�Lls2 \♦,�,\ South Platte
fi l l j \*•\\ 1 ) 7 162 171
It s v
\ .
fir
G R A N D 3
��
,
Ni
20
40
LA-KE EL
;10
ur I= 10�IO it
2_ 30 SNOW COURSE MEASUREMBITS
_ \ �F � ` �� �� \•, � ��O E CURRENT INFORMATION PAST RECORD
♦ * , `� \♦ .
AAI T a WATER CONTENT
S U M
� � \\' • •ti ,. . .M1c\.'�"" OOFE SNOW WATER IINCNESI -
JEFFERS- � �' , v • SNOwCOURSE DEPTH CONTENT
wsosi.rKts • I"at, I y�\\.,.F \z♦ �� �\\A' SURVEY (INCHES) (INCHES) LAST AVG
x LEGEND YEAR 61-eo
x "1 R T COLORADO
r'" ros , #•♦'`\ 'v,•,�,,.•,`,"::i:: vv03n t\ U,'' \ >z;`.a • Forecast Point -
PREF Snow Course
SNOTEL Site SOM PIATTE BASIN
• ?s='?<>:`: STREAMFLOW FORECASTS
. � :•*: M�-<;�' Percent of
1961-130 Average
I Boulder Creek
Over 1300/a
TROY•CREEK #` \ vva..
¢ •' EL PASO ' .
FI LE RI' ® 110-130°ia Baltimore 4/27 39 10.3 9.2 4.6
90-110%
'Boulder Falls 4/25 61 19.3 15.0 13.0
a
70- 90% lake Eldora 4/25 49 17.2 11.9 9.3 *
® Under 70% Nimt 4/26 65 20.8 15.6 10.3 *
University Camp 4/25 72 25.4 18.7 18.8
Big Thompson River_
YOUR WATER SUPPLY Bear lake 4/29 68 22.2 18.4 16.7
THE SOUTH PLATTE RIVER DRAINAGE HAS MAINTAINED A WELL ABOVE AVERAGE SNOWPACK Deer Ridge 4/29 26 7.3 4.3 2.8
Hidden Valley 4/29 40 9.8 8.6 10.5
THROUGH APRIL. BASIN AVERAGES ACTUALLY INCREASED FROM 5% TO 36% OF AVERAGE Lake Irene (B) 4/26 87 31.8 27.7 22.9
Tangs Peak 4/26 64 20.0 13.6 12.4
DURING APRIL. OF THE SNOW COURSES MEASURED IN THE BASIN, EIGHT ESTABLISHED Two Mlle 4/29 68 18.0 14.6 17.5
Willow Park 4/29 78 23.4 22.1 21.5
NEW MAXIMUM SNOWPACK ACCUMULATIONS FOR MAY FIRST. SOIL MOISTURE CONDITIONS
Cache Ia Poudre
HAVE BEEN ESTABLISHED AS IN GOOD CONDITION THROUGHOUT THE BASIN AND RESERVOIR Bennett Creek 4/28 48 13.4 11.4 5.2
STORAGE IS NEAR AVERAGE. PROSPECTS FOR PLENTIFUL WATER SUPPLIES ARE EXCELLENT Big South 4/26 20 6.3 6.5 0.5
Cameron Pass 4/26 97 34.4 35.4 32.1
THIS YEAR. ALL FORECASTED STREAMFLOWS ARE FOR MUCH ABOVE AVERAGE VOLUMES. Chambers lake 4/26 31 9.2 11.4 6.8
Deadman Hill 4/30 70 22.6 23.6 18.0
Hourglass Iake 4/28 46 13.5 18.1 6.5
Joe Wright 4/26 102 35.8 34.9 28.7
lost Lake DISC TINUE - - D
Pine Creek 4726 15 3.6 3.1 0.6
STREAMFLOW FORECASTS (1000 Ac. Ft.) April - September Red Feather DISC TINUE - - D
FORECAST POINT Forecast o of Average 1961-60 Average Clear', Creek :e .
Bear Creek at Morrison 46 160 28.7 Baltimore (B) 4/27 39 10.3 9.2 4.6Berthoud Falls 4/27 61 21.0 17.8 12.3 _
Big Thompson River at Drake (1) 154 135 114.0 Empire 4/27 42 12.1 9.9 7.5
Boulder Creek at Orodell 70 150 46.7 Grizzly Peak (B) 4/26 72 25.2 19.0 20.0
Cache La Poudre River at Canyon Mouth (2) 413 154 268.0 Loveland Pass 4/26 54 20.8 16.6 15.1
Clear Creek at Golden (3) 190 150 127.0
r St. Vrain Creek at Lyons 127 161 78.8 St. Vrain River
South Boulder Creek near Eldorado Springs 64 152 42.1
South Platte River at South Platte 286 145 197.0 Copeland lake 5/01 22 6.5 3.8 2.8
Ward 4/25 43 11.5 9.2 5.6
Wild Basin 4/29 57 15.8 7.4 12.4
fll Oh.r.rrd floe plus by-pas. to Paerr plant,. 11) Ohse d ftr .,.as trans"b.-ri d-erslons plus aunlrtpal and Irrigation diversions. (j)Observed floe Riaus
dieersiae or barn--A alto►, yI-City all 111111,11,011s.dad OWt1R Dsta awns....
South Platte River "
Bison Reservoir 4/26 16 5.0 3.1 -
WATER SUPPLY OUTLOOK cel t"With Respect Usulalla upply RESERVOIR STORAGE (Thousand Ac. Ft.) END OF MONTH Como 4/233 31 10.1 6. 5.0p
Flow Per,od Bann or Scream Usable Storage Geneva. Park 4/28 21` 5.1 2. 1.8
Usable Horseshoe
�4, *
STREAM or AREA Spring Lase and or Capacrrr Th.s Lasc 19g1-e0 - Horseshoe Mountain 4/25 42 13.8 9. 10.5
Season Season RE SERvOIR Yea. rear A.era e
Hoosier Pass 4/24 57 18.9 12. 12.9
Antero 16 16 16 14 Jefferson Creek 4/25 38 13.6 10.i 8.4
r Coal Creek ",xcellent Excelle t Barr Lake 32 27 28 26 Mosquito 4/24 35 12.2 7.0 6.7
North Fork of South ExcellentSundance Excelle t Black Hollow 8 4 5 4 NS - -
Pass
Boyd Lake 48 41 48 37 Trout Creek 4/23 22 7.2 2. 2.1
Platte Y
North Fork of Cache xcellen Excelle t Cache La Poudre 10 10 10 8
Carter Lake 111+ 104 105 103
La Poudre
Ralston Creek 'sxcellent Excelle t Chambers Lake 9 3 5 4
Rock Creek sxcellent Excelle t Cheesman 79 79 79 56
South Platte from ,xcellent Excelle t Cobb Lake 34 21 19 14
Greeley to Fort Eleven Mile 98 98 84 .89
Morgan Empire 38 28 31 32
South Platte from ,xcellent Excelle.. t Fossil Creek 12 0 7 9
Fort Morgan to Gross 43 26 23 22 NS-.No survey.
SterlingHalligan 6 6 6 5 �a�-On adjacent drainage.
Halligan 144 136 116 115 D-Snow course discontinued. Estimates available thru
South Platte below xcellen Excelle t
Sterling Jackson 35 23 35 34 SCS office.
Julesburg 28 21 23 .23 *-Less than 15 years of record.
Lake Loveland 14 10 12 10
Lone Tree 9 8 8 7 WATERSHED SNOWPACK
Mariano 6 5 5 5 Based on 5 Selected Snow Courses
Marshall 10 9 10 6 Z
z
Marston o 18 17 17 16 W
35
Milton 24 19 20 16 ><:<
>
<..: .
-
Point of Rocks 70
70 68 67
2 28 2 6 3
P rewi tt
30
33 e�
W
i es Riv r de
58
6 8
1 5 57
2
2 t>r
StandieY
42
37
38 6
w
5 6 6
8 ..
Terry t•-e
Y ..
13
13 13 11
Q
Union 20 _
Windsor 19 16 13 12 3 `�`•aop�e�o9
Horsecreek 16 13 14 14
Z 15
J to
10
0
>�
�n 5
W
U
'; tN MUM ' Ct� .!T`ECt1Rt�
Z
FEB. Ist MAR. Ist APR. Ist MAY. Ist
*Berthoud Pass, Cameron Pass, Deadman Hill,
Hoosier Pass, University Camp.
UWA-tCS-KOTIAt10,OR.11,1111 -