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Old 06-02-2008, 01:50 PM   #1
TimmyG
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Default What happened Saturday

CLA, I was wondering what happened to all of the rain they predicted for Saturday. I heard as late as friday night that Sat was going to be a washout. I live in Henniker and we haven't seen any good rain since April. I planted a bunch of veggies and set them out hoping for a good soaker. Not a drop!
Yesterday I was on the lake (2:30pm til 6pm) There was a very strong wind from the north whipping the lake into quite the frenzy. My wife thinks it is her. Everytime we go out together it's cloudy windy and rough. When I go myself it's beautiful! When I docked about 6 it seemed to all die. Still no rain in Henniker.

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Old 06-03-2008, 10:55 AM   #2
CanisLupusArctos
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We've had very dry air lately. As is the case in the desert, dry air eats rain before it hits the ground, and also causes weather systems to dry up as they approach. On Friday evening I saw the National Weather Service going for .25 to .50" rain here, and based on the dryness (like the fact that my skin feels like I've been sleeping on a chalkboard) I went for the low end of the scale. I ended up being too high. The actual rain we got at the lake was 0.13, most of which fell during a downpour with thunder on Saturday morning. If you weren't lucky enough to get one of those hit-or-miss downpours, then I'm not surprised you got nothing at all.

The last couple days we've seen a trend toward higher dewpoints (a more accurate measure of humidity than *relative* humidity, because dewpoint is not relative to the temperature.)

The dewpoint fills in the blank in this statement:

Warm air can hold more moisture than cold air, and there is enough moisture in the air right now to saturate the air if it cooled to _____ degrees. The warmer the air, the bigger the glass. The closer the dewpoint is to the temperature, the fuller the glass is. Half full (50%) at 90 degrees is a lot more moisture than 50% at 20 degrees... and that's why relative humidity is irrelevant.

Anyway... lately we've been having dewpoints in the 30s, even with temps in the 70s. That's not conducive to rainfall. The last couple days we've had dewpoints in the 50s, enough to feel, and as a result we actually have some rain happening up here now. A few days ago this same situation would've evaporated before hitting the ground.

We're going to see a trend toward more humidity this week. Our flow has been out of Canada where there's abnormally cold, dry air for this time of year. This week the prevailing winds will shift to southwest, and this will bring up some Gulf of Mexico air. Gulf Coast air is soup to your lungs. It supports rain forests where it comes from, so evaporation of rain showers will no longer be an issue.

Tomorrow I see the bulk of the widespread rain simply missing us to the south, as the past several storms have done. Rather than dryness, this sort of thing is just weather pattern. The storm track isn't hitting us. We'll still get some good downpours scattered around the area, but predicting which towns will get one of them is like any casino bet. Call it in the air, heads or tails?
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Old 06-03-2008, 05:03 PM   #3
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At least it isn't snow!

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