What is up with the polka dot pattern? Is that an artifact of radar placement, or do rainstorms really form in patterns like that? posted by phrontist at 8:44 PM on February 10
I suspect the polka dot pattern is just "ground clutter" around the radar sites. posted by HuronBob at 8:46 PM on February 10
And form the same polka dot pattern three times over three days. Weird. posted by 3FLryan at 8:46 PM on February 10
Is this another thing I'd need to live in the US to understand? posted by Samuel Farrow at 8:49 PM on February 10
"Is this another thing I'd need to live in the US to understand?"
geez...I would hope not... :-\ posted by HuronBob at 8:50 PM on February 10
Is this another thing I'd need to live in the US to understand?
Only if the US is the only country with people who think weather patterns are interesting. posted by 3FLryan at 8:50 PM on February 10
Ah, the memories. posted by hwyengr at 9:28 PM on February 10
"WTF is happening at @26:25 ?"
In a word: Obama. posted by Sys Rq at 9:31 PM on February 10
The pulsing is "clear air mode." During clear weather, the radar is turned to extremely high sensitivity. It picks up more ground clutter, hell, it can pick up flocks of insects. Clear air mode is often used at night and is turned back to regular mode during the day. Thus the pulsing effect. posted by charlie don't surf at 9:37 PM on February 10 [3 favorites]
Past jet stream. posted by Mblue at 9:39 PM on February 10
It seems like every US weather map I see has these "radar-borders", so that we never see the weather in Mexico or Canada. Why is that? Are there regulations on what we can see on a weather map? I know that this video, and lots of other displays, maps, whatevers, are "US" weather maps, but not seeing systems until they appear at our borders has always seemed odd to me. Regulations? Processing cost? What? posted by Lukenlogs at 2:26 PM on February 11
It seems like every US weather map I see has these "radar-borders", so that we never see the weather in Mexico or Canada. Why is that? Are there regulations on what we can see on a weather map? I know that this video, and lots of other displays, maps, whatevers, are "US" weather maps, but not seeing systems until they appear at our borders has always seemed odd to me. Regulations? Processing cost? What?
The data in the video comes from WSI (The Weather Channel) and Nexrad. American radar on American soil. posted by Sys Rq at 3:31 PM on February 11
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posted by crunchland at 8:09 PM on February 10