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Questions tagged [national-weather-service]

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4
votes
2answers
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What's the default meaning of “Valid” in NOAA weather map?

NOAA weather forecast maps often include a valid time period, e.g: "valid from time1 thru time2." However, many maps only indicate a single time, e.g: "valid time1." In the absence of other ...
4
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1answer
38 views

What exactly is an “upper air station”?

What exactly is an "upper air station"? I know they release radiosondes and manage the resulting data, but how does that occur? I notice that some seem to be at universities. Does the National ...