Spring 2010 Flood Discussion

codeman671 · 04-08-2010, 12:12 PM

With the current discharge rate of 2300cfs, how long does it take for the lake to drop an inch based on no rain? Just curious.

I have a friend in Parker that wants to launch and can get out at just above full lake, but not by much.

LIforrelaxin · 04-08-2010, 02:25 PM

Quote:

Originally Posted by codeman671

With the current discharge rate of 2300cfs, how long does it take for the lake to drop an inch based on no rain? Just curious.

I have a friend in Parker that wants to launch and can get out at just above full lake, but not by much.

Looking at the DES website today, it appears that the lake has come down about .14 feet from last weekend and that is roughly about 1.6 inches... now that isn't with the dam entirely at 2300 cfs... however that should give you some ideas..... I would say we are a good 2 or 3 weeks from getting down to the full lake mark... and that is assuming no appreciable rain.....

chipj29 · 04-09-2010, 06:47 AM

Quote:

Originally Posted by codeman671

With the current discharge rate of 2300cfs, how long does it take for the lake to drop an inch based on no rain? Just curious.

I have a friend in Parker that wants to launch and can get out at just above full lake, but not by much.

And keep in mind that although there hasn't been much rain the past few days, water is still flowing pretty quick all over. The lake is still filling up with runoff and snowmelt.

CanisLupusArctos · 04-10-2010, 03:30 PM

Don't forget that tree areas have a much cooler climate than open areas. There is plenty of snow in the woods at the higher elevations.

When you hike in the higher mountains, you find forests that are much cooler than open slopes at the same elevation (you can feel the sudden temperature difference as you pass from one to the other.)

The areas shaded by dense evergreens hide deep snow from easy view, and the snow there lasts well into the warm weather if there has been a lot during the winter. This past winter brought enormous snowfall dumps to NH elevations above 1500 feet. So even while the exposed slopes may be melting off quickly, the shaded areas will continue to produce snow melt through the spring.

The amount of contribution will gradually dwindle as the rapid-melt sources go bare and only the shaded slow-melt sources remain.

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04-08-2010, 12:12 PM	#1
codeman671 Senior Member Join Date: Jan 2005 Posts: 3,486 Thanks: 221 Thanked 810 Times in 486 Posts	With the current discharge rate of 2300cfs, how long does it take for the lake to drop an inch based on no rain? Just curious. I have a friend in Parker that wants to launch and can get out at just above full lake, but not by much.

04-10-2010, 03:30 PM	#4
CanisLupusArctos Senior Member Join Date: Jan 2007 Location: Center Harbor Posts: 1,049 Thanks: 15 Thanked 472 Times in 107 Posts	Don't forget that tree areas have a much cooler climate than open areas. There is plenty of snow in the woods at the higher elevations. When you hike in the higher mountains, you find forests that are much cooler than open slopes at the same elevation (you can feel the sudden temperature difference as you pass from one to the other.) The areas shaded by dense evergreens hide deep snow from easy view, and the snow there lasts well into the warm weather if there has been a lot during the winter. This past winter brought enormous snowfall dumps to NH elevations above 1500 feet. So even while the exposed slopes may be melting off quickly, the shaded areas will continue to produce snow melt through the spring. The amount of contribution will gradually dwindle as the rapid-melt sources go bare and only the shaded slow-melt sources remain.

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