On July 9, 2009, I posed a question regarding what caused the above radar "spike" feature.

On July 10, 2009, I posted an answer that Bill Murray of the netcast "Weatherbrains" was able to find by speaking with a representative of the NWS Billings, Montana.

Thanks to Bill for digging deeper and getting a much more detailed response which was aired at the end of Episode 181 of Weatherbrains!

By the way it was also very nice that J.B. Elliott and Bill Murray mentioned my post on severe weather coverage at the end of Weatherbrains Episode 171.
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