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sinjunBusy Friday, and my head is killing me. But that's okay, since we apparently have a closed low planning to stall overhead of us and drop up to 60mm of rain on our heads this weekend. That's all the rain we usually get in a month. I heard we actually might have flooding - did I suddenly move to Vancouver without noticing?
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Date: 2003-05-23 06:11 am (UTC)no subject
Date: 2003-05-23 06:20 am (UTC)Maybe at lunch.
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Date: 2003-05-23 06:30 am (UTC)Good question. Some low pressure system, perhaps? I don't know.
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Date: 2003-05-23 06:37 am (UTC)no subject
Date: 2003-05-23 06:47 am (UTC)A closed low has several characteristics. Closed lows tend to be deep pressure systems with one or more height contours encircling them on the analysis charts at all levels in the troposphere. A closed low is occluded and vertically stacked. Because the low is closed, it does not generate much PVA and NVA. The vort max will be near the center of rotation. It is difficult to get a windflow that produces vorticity advection because the vorticity isopleths for the most part are parallel to the height contours. The weather associated with closed lows tends to be cloudy with showers in the vacinity of the low's center. Closed lows are often slow movers but can move quickly if they are embedded within the jet stream. Cloudy and rainy weather can persist with the slow movers. A special case of the closed low is the cut-off low. Thermal advection tends to be weak with closed lows since they are occluded.
- http://www.theweatherprediction.com/habyhints/200/
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Date: 2003-05-23 06:51 am (UTC)Is that written in English?
*grins*
Thanks!
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Date: 2003-05-23 07:06 am (UTC)no subject
Date: 2003-05-23 07:17 am (UTC)no subject
Date: 2003-05-23 09:01 am (UTC)no subject
Date: 2003-05-23 08:19 am (UTC)You've got a low pressure system, overcast and dreary, for a few days probably.
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Date: 2003-05-23 08:21 am (UTC)*grins*
Overcast, dreary and lots of rain, apparently. Yay?!
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Date: 2003-05-23 07:11 am (UTC)Wait. Of course it does. That's why it's raining this weekend (or so says the Weatherman).
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Date: 2003-05-23 08:19 am (UTC)Mind you, I'm glad it is, cause facing this rain with that plotting? I'd have been dead all week.
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Date: 2003-05-23 07:15 am (UTC)You say that's to settle in for the whole weekend? Well, damn... I'd better pick up some more tylenol.
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Date: 2003-05-23 08:18 am (UTC)Whether he's right or not, that's another question.
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Date: 2003-05-23 08:30 am (UTC)