The new updates are, as always, great and add a lot of value to Windy. I'm once again asking you to add total precipitable water as one of the parameters offered for display. It's a great way to visualize moisture plumes and whatnot, such as this one later this week where moisture sourced from the Caribbean will be bringing rain to Norway and the United Kingdom.

This sort of thing is critical for severe weather and atmospheric river forecasting and the current humidity and precipitation parameters don't capture it as well as total precipitable water does.

Thanks for this! I am unable to pull up the satellite archive on desktop, any thoughts on how to resolve this issue, or is it a new update coming out soon? My settings show I am running version 37.2.5 in Microsoft Edge on Windows 10. Additionally, will this be added to the iOS version?

Finally, a shameless plug that I'd still love to see total precipitable water added as one of the offered parameters. It would be very useful for forecasting atmospheric river events and spring thunderstorms in my region.

Hello WIndy team! NOAA is planning on launching a new weather model (RRFS) to replace both the HRRR and NAM late 2023. It is operating provisionally so far with a domain that covers the dame domain as the HRRR, but once it is operational the domain is expected to cover all of North America.

Is Windy planning on switching mesoscale modeling in North America from the HRRR and NAM, which will likely be sunset after the RRFS launches, to this new model? I am hoping so. This would also be a win for Canadian, Latin American, and Caribbean users.

Details: https://gsl.noaa.gov/focus-areas/unified_forecast_system/rrfs and https://dtcenter.org/sites/default/files/events/2021/23-carley-rrfs-overview-srw-app-training.pdf

@Ondřej-Šutera Adding my support for total precipitable water. I would find this to be incredibly useful.

Hi all,

I love Windy and find it very useful for my forecasting. It is missing a very important parameter, however, which is total precipitable water. This measures atmospheric moisture content throughout the entire column instead of at specific altitudes, as in RH and dew point and is helpful in tracking impacts from atmospheric rivers, decaying tropical systems, etc.

Most models have this parameter included in their output dataset. Please consider adding it to Windy to improve the usefulness of the product to meteorologists.

Thanks,
Mark Ingalls
Energy meteorologist
Surrey, British Columbia

@anthony10 On a similar note, I've been pushing for total precipitable water for a few years now. Hopefully someday they'll listen.

@javier-ferres Total precipitable water would be the perfect way to do this. Several of us have been asking for it for years, but it currently does not exist on Windy.

@Annual-Salvador-Rally The colors represent the strength of the parameter (wind, waves, etc.) same as on the map.

Still waiting for Total Precipitable Water

@RHsurf It costs money to maintain all these systems.

@Sophia-V-Q-Stoltz Still no total precipitable water? Severely disappointing.

@mccresa Show us an example of the region being called "Gulf of America" before November 2024.

@Jari-Sochorová These parameters are not satisfactory for viewing the aggregate moisture across the entire column of the atmosphere.

@webintn This topic has been discussed extensively in this forum. Frontal boundaries are difficult to determine in an automated way and the weather models don't output that data. Most front maps you see are generated by a human forecaster, which Windy doesn't utilize.

Hello,

The new weather station widget for iOS is awesome. I do have one recommendation, however. I especially like that the current air pressure is shown. On the wide view widget, the orientation of the data is a little unnatural.

Right now, you have it organized (left to right) as most recent, then 4 timestamps ago, 3 ago, and 2 ago. It would make more sense to have it go most recent, second most recent, and so on. Essentially making the oldest visible data point on the right instead of in the middle.

In the attached screenshot, the data should be shown as:
Current, 13:02, 13:00, 12:45 instead of how it is right now (current, 12:45, 13:00, 13:02).

Also once again asking for total precipitable water to be an offered parameter.

It would also be cool if you guys added the ECMWF-AIFS and AIFS-Ensemble as model options. AIFS-Ensemble goes operational tomorrow (July 1).

Thanks,
Mark Ingalls
Meteorologist

Still waiting for Total Precipitable Water

@Suty Being able to filter out low dbz returns could help clean up the display in cases of ground clutter and also to filter out returns from distant radars that are looking into the upper level of a storm.

In areas with good radar coverage, a composite like you guys offer will often (properly) show heavy rain near the thunderstorm's core but also an apron of light rain that is actually a different radar looking at the upper level of the storm.

I'm attaching an image from a non-Windy source that illustrates this phenomenon. It occurs on all composite weather radar displays, which is what Windy has. In this case the user would set the filter to remove the lighter returns ahead of the four storm systems circled.

@Polina-Nozdrina I'm very disappointed that Total Precipitable Water was again not included despite years of several people requesting it.

@javier-ferres Total precipitable water would be the perfect way to do this. Several of us have been asking for it for years, but it currently does not exist on Windy.

@andrew98 The National Blend of Models isn't a weather model, it essentially treats multiple other models (GFS ens, ECMWF ens, etc.) as a single ensemble model. As such the "deterministic" output is essentially just an ensemble mean and isn't very useful in forecasting. The NBM's value comes in probability outputs, such as calling out a 15% chance of a high end event. This sort of data would be hard to communicate on Windy.

The RRFS is not operational yet and NOAA had some setbacks on developing it. In this "experimental" phase it can be erratic in how often or how well it runs, making it difficult to use. The latest estimate for going operational that I heard was during the second half of 2025. It will eventually replace the HRRR and NAM, but does not run reliably yet.