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Comment by pfdietz | Hacker News Reader

The storm arrived early and already was dying down before nightfall in North America.

I expect more from NOAA getting "tonight's" and "tomorrow night's" more clearly communicated on their site using UTC. Not sure that site's graphic uses my browser locale.

If you click their link to the 30 minute forecast data, it has times in UTC there

I agree - I'm seeing a "creation time" which simply seems to be set to the current UTC time whenever I refresh it. This map seems to bear little resemblance to the 30-minute forecast for the current time, which shows very little activity.

The NOAA map is confusing, the webpage is titled "30 minute forecast" but it is not a forecast, nor is it 30 minutes. It shows 24 hours of history.

It's 24 hours of past 30 minute forecasts + one additional 30 miniute forcast (into "the future")

eg: Data collected at the L1 point at 2024-03-25 02:51 (UTC) is transmitted to earth, feed into the NOAA model which creates AT 2024-03-25 03:00 (UTC) (nine minutes after the L1 observations) a forecast for 2024-03-25 03:31 (UTC) (31 minutes after "present time" when model run using data observed nine minutes earlier)

Oh. I wish they had a "forecast vs. actual" for the past 24 hours.

This was my complaint as well. I have no idea what "tonight" and "tomorrow" mean in the context of those images. The creation times help me kind of understand but it'd have been way nicer if they'd have just said "The night of 03/25/2024" or something.

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