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Subtropical Depression becomes Tropical…

Brian Neudorff @ 5:46 pm September 21st, 2007 · No Comments

From Dr. Jeff Masters’ Blog:

Tropical Depression Ten has gradually been acquiring tropical characteristics today, and officially made the transition from a subtropical storm to a tropical storm at 2 pm. One could still argue that the storm is subtropical, since the satellite presentation still shows a large band of strong thunderstorms well removed from the center. However, TD 10 has developed some heavy thunderstorms right at its center, which is a key characteristic of a tropical system. This transition means that TD 10 is likely to intensify, and surface winds measured by the Hurricane Hunter aircraft have increased about 10% since this morning. An Air Force aircraft measured a 37 knot surface wind at 1:05 pm EDT, and a NOAA aircraft measured 38 knots at 1:35 pm EDT. It’s a judgment call on NHC’s part to decide when this slow increase in winds merits an upgrade of the system to Tropical Storm Jerry. The storm still has subtropical characteristics, and this will keep its intensification rate far slower than Hurricane Humberto’s. I think a 50 mph tropical storm is the strongest we’ll see TD 10 get.

I can’t much argument here with what Dr. Masters has above. There will be some intensification but because it is so close to land probably won’t see much

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Tags: Discussion · Forecasting · Jerry · Tropics 2007

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