WSP12946

• File Number: 8040.800
• Description: Water Resources for Colorado
• State: CO
• Date: 5/1/2005
• Author: US Dept of Agriculture - Natural Resoruces Conservation Service
• Title: Colorado Basin Outlook Report May 1, 2005
• Water Supply Pro - Doc Type: Data

YAMPA, WHITE. AND NORTH PLATTE RIVER BASINS
Streamflow Forecasts - May 1. 2005

<<-_.... Drier _.=-_. Future Conditions wetter a...=->>
Forecast Point Forecast .-.====--~._~==_._.- Chance Of Exceeding * .D__===_~__D==___==.__
Period 90% 70% I 50% 30% 10% 30-Yr Avg.
Q...=======..======Q====.=======....============~:~~~~~.=~:~~~~~=.I==.~:~~~~:~==~~=~~:~:=. (1000AF) ( 1000AF) ( 1000AF)
--=.==-===-=.=-=====.=--==-==.====~-=
NORTH PLATTE RIVER nr Northgate MAY-JUL 97 122 140 68 160 191 205
MAY-SEP 99 135 160 70 185 219 230
LARAMIE RIVER nr Woods MAY-JUL 47 71 87 76 103 127 115
MAY-SEP 51 78 96 76 114 141 127
Yampa R abv Stagecoach Res APR-JUL 16.8 19.1 21 72 23 25 29
Yampa River at Steamboat Springs APR-JUL 157 179 195 70 215 240 280
Elk River nr Milner APR-JUL 240 280 305 94 335 375 325
Elkhead Creek nr Elkhead APR-JUL 23 27 31 80 35 41 39
ELKHEAD CREEK blw Maynard Gulch APR-JUL 33 43 50 85 57 67 59
Fortification Ck nr Fortification MAR-JUN 3.70 4.90 6.00 80 7.50 10.30 7.50
Yampa River nr Maybell APR-JUL 575 675 740 75 810 930 990
Little Snake River nr Slater APR-JUL 103 122 137 86 153 175 159
LITTLE SNAKE R nr Dixon APR-JUL 198 250 285 86 325 390 330
LITTLE SNAKE R nr Lily APR-JUL 220 270 310 85 350 420 365
White River nr Meeker APR-JUL 149 176 198 68 222 264 290

=_..==_._~___=_.___.._.D___...==.=_._====.._._...._=..___.._..........___....=......_.......=_==_==__=..._=_____a_______===.___...

YAMPA. WHITE. AND NORTH PLATTE RIVER BASINS
Reservoir Storage (1000 AF) - End of April

YAMPA, WHITE, AND NORTH PLATTE RIVER BASINS
Watershed Snowpack Analysis - May 1, 2005

Reservoir

Usable I
Capacity

... Usable Storage ...
This Last
Year Year Avg

Watershed

Number
of
Data Sites

This Year as % of

Last Yr

Average

..__...__.__..________=______......._........_........._._=_.a.....__=_. ====_==================._==__.._===__.___=_=========.____

STAGECOACH 33.3 29.5 30.5 28.1 LARAMIE RIVER BASIN 4 118 75
YAMCOLO 9,1 5.4 7.0 7.4 NORTH PLATTE RIVER BASIN 11 128 79
TOTAL NORTH PLATTE BASIN 14 125 80
ELK RIVER BASIN 2 247 84
YAMPA RIVER BASIN 12 150 72
WHITE RIVER BASIN 6 117 73
TOTAL YAMPA AND WHITE RIV 17 142 72
LITTLE SNAKE RIVER BASIN 8 150 89
TOTAL YAMPA. WHITE AND NO 36 137 79

=._=_=_=..._..=.._=..=...=_._.____c.__._a.......~_._.==.==.=_........=.._.=.===__=_=_==..._=____..__..._......_.._==._=_=___...._.

. 90%,70%, 50%, 30%, and 10% chances of exceeding are the probabilities that the actual volume will exceed the volumes in the table.

The average is computed for the 1971-2000 base period.

(1) - The values listed under the 10% and 90% Chance of Exceeding are actually 5% and 95% exceedance levels.
(2) - The value is natural volume - actual volume may be affected by upstream water management.

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