Tuesday, July 26, 2022

New HRRR products on weather.utah.edu

I've added some new HRRR products on weather.utah.edu.  In fact, I've completely upgraded our HRRR postprocessing suite over the past couple of weeks, migrating to python and building in a lot of capabilities that should improve reliability and produce far superior graphics than those that have been around now for 20 years.  In particular, the code uses Amazon Web Services as the primary access point for the data, with a fall back to the National Weather Service if there's a hiccup.  It will auto backfill if products are not produced (assuming our servers are up).  It's also parallelized and, for the three product types that are currently being produced, and download and process an 18-hour HRRR forecast in three and a half minutes.  The color schemes are also supposed to be more color-blind friendly.  

The three products that are available are composite reflectivity and IR, hourly precipitation, and total precipitation.  

On weather.utah.edu, you can loop through these.  Here's a direct link for the western US radar and satellite loop: https://weather.utah.edu/index.php?&t=hrrr&d=CR&r=WE.

There are also plots available for the Northwest, Southwest, Intermountain, Northern Utah, and Wasatch Front regions.  The total precipitation product includes annotated values for several locations including the gridpoint nearest to the Salt Lake City Airport, Cottonwood Heights, Alta-Collins, Canyons Daybreak, Snowbasin Middle Bowl, Ben Lomond Peak SNOTEL, Deer Valley Ontario, Sundance, Powder Mountain, Trial Lake SNOTEL, Tony Grove SNOTEL, and Bunnels Ridge observing sites.  There's nothing to see today (no precip), but this should be useful in the future.  

There's still a lot broken on weather.utah.edu, including time heights.  Many of the graphics are also dated. I will be doing updates from time to time as time permits.  Please be patient.  I only have a little time here and there to work on these things.  Alert me if you see bugs.

4 comments:

  1. I wasn't aware that you are responsible for coding some of the weather.utah.edu visuals. Well done! I'm impressed.

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  2. Ramona (Hull) BeyukaJuly 28, 2022 at 12:13 PM

    Very nice! I really like the grey background. Glad you are aware of the time-height issues...I was very confused yesterday when suddenly I was looking at model runs from May.

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    Replies
    1. Yes, apologies for that. Everything died after they upgraded our computer system in may as my our old code is apparently too old.

      I have a working prototype to produce the skew-T's and time-heights again. They are really nice, and the code is parallelized and blisteringly fast, but I need to do some more testing and then migrate it to our production suite.

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