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#11
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Wyatt Emmerich wrote:
Flying back from Atlanta to Jackson, my Echo Flight finally received its downloaded Nexrad data. It showed me flying right in the middle of a big blotch of red. I look outside the window. I'm in light 40 F light drizzle with ceilings of about 6000 above a broken 2000 layer. I turn on the Bendix/King RDR 2000 on-board radar. It shows nothing. Nothing on the stormscope. Why the huge contrast between the on-board and the Nexrad return? Perhaps the Nexrad was picking up water far above me, while the on-board was looking ahead (I was at 5,000.) Hi Wyatt, I see the 12/19 date on your posting and note that I was flying on 12/18 (maybe that's when you noticed this phenomenon?) and noticed a lot of NEXRAD radar returns (but nothing red) in western North Carolina, but no ground stations were reporting any precipitation. Ceilings were in the 4-6000 range. I and several others reported light rime icing in the 6-9000 range, in the areas where the NEXRAD was showing precipitation returns. I ultimately descended to 5000 and completed my trip at that altitude, below the bases, and there was no precipitation at 5000 ft. Dave Remove SHIRT to reply directly. |
#12
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On Mon, 22 Dec 2003 10:13:18 -0500, Dave Butler wrote:
Wyatt Emmerich wrote: Flying back from Atlanta to Jackson, my Echo Flight finally received its downloaded Nexrad data. It showed me flying right in the middle of a big blotch of red. I look outside the window. I'm in light 40 F light drizzle with ceilings of about 6000 above a broken 2000 layer. I turn on the Bendix/King RDR 2000 on-board radar. It shows nothing. Nothing on the stormscope. Why the huge contrast between the on-board and the Nexrad return? Perhaps the Nexrad was picking up water far above me, while the on-board was looking ahead (I was at 5,000.) My guess would be the EchoFlight system had an issue. A friend of mine had that system and kept trying to get it work for 2+ years. He had a lot of issues with accuracy. He has recently abandoned the system and has gone to WxWorx with XM radio. That system is working much better for him. jerry |
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