| OCR Text |
Show Upper Colorado river flow advisory for May The May 1 snow measurements and forecasts indicate that inflows into Lake Powell are 141 percent of normal. This will mean, among other things, that Lake Powell will probably fill for the first time. It will also assure ample water for river boating in the canyons of the Colorado and its principal tributaries, according to the May River Flow Advisory, published by the Water and Power Resources Service Upper Colorado Region. Forecasts for flows below dams operated by the Water and Power Resources Service are as follows: Colorado River above Lake Powell-Colorado Powell-Colorado River at Westwater Canyon the flow is now 22,000 cfs and is expected ex-pected to reach about 46,000 cfs around the first of June. Cataract Canyon (including the Green River) the flow is now 35,000 cfs and is expected to peak at approximately ap-proximately 85,000 cfs around the first of June. Lake Powell, now at elevation 3,680 feet, is expected to fill to elevation 3,700 feet by next July. The lake is rising at v2 foot per day. Colorado River through Grand Canyon Because Lake Powell will probably fill, more water than usual will be released this spring. Also, it is certain that tributary inflow below Glen Canyon Dam will be higher than normal. The minimum release (between (bet-ween midnight and 7 a.m.) will be 3,000 cfs. Upper Green River Fontenelle Reservoir is at elevation 6,489 feet. The present release of 1700 cfs will be increased in-creased as the inflow increases. The inflow is expected to be about normal. Green River Flows Below Flaming Gorge Dam The reservoir is now at 6,002 feet and it expected to increase to 6,023 feet by next summer. Releases are expected to be normal this spring and summer. Green River at Green River, Utah The Green River is flowing at 13,000 cfs. The flow is expected to peak at approximately ap-proximately 42,000 cfs the first of June. San Juan River Flows Current releases (3000 cfs) are being gradually decreased to 1200 cfs. The flow at Bluff, which is now 7000 cfs is expected to peak to 18,000 cfs around the first of June. Navajo Reservoir is at an elevation of 6049 and is expected to raise approximately ap-proximately 5 feet of its 6085 capacity . .' during the summer. . Gunnison River Blue Mesa Reservoir is now at elevation 7,461 feet. The reservoir is expected to fill by next August. |
