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Weather at the Frozen North
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Last Updated: Aug 07, 2008 03:30 PM
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Sunday - September 04, 2005 at 10:23 AM inTrain Echo
Usually thunderstorms rumble through and are gone after 20 minutes to an hour. Every now and then, you get clusters of storms continually re-forming over the same spot for an extended period of time. This is known as a "train echo" pattern, and can dump a lot of rain over a short period of time.
That's what we had at our home last night. The first thunderstorm came through at about 3:30 PM yesterday, and the forecast called for a decent chance of rain overnight, and clearing today. But then the train echo started. Every hour or two since the first storm, another one has rolled through. Even now, 19 hours later, there's still thunder and lightning. We've gotten well over two inches of rain in our backyard rain gauge, and some places just a few miles from here have gotten at much as six inches of rain. Local streams are running high and fast, even though they were hardly flowing at all a couple days ago. Watching the time-lapse on the weather radar shows exactly what's been happening. Every hour or two, a storm would form over about the same spot somewhere northwest of our house and start moving southeast, forming a very clear line of storms about 25-50 miles apart, each following in the wake of the one before. Throughout the night, the spot where the storms have been forming has been very gradually drifting southeast, and is now right over our house. If this pattern holds, in another hour or two it should clear out and we may have a nice day. Posted at 10:23 AM | Permalink | | | |