What's New

Date	Change	Tags
2026-03-19	NOAA's NBM model is now available in the StormVista API. Due to varying hours and formats/variables, it has its own section in the API documentation. https://www.stormvistawxmodels.com/api Variables/Units: File Description Units tmp2m 2m Temperature °F dpt2m 2m Dewpoint °F relh Relative Humidity % heatindex Heat Index °F windchill Windchill °F wetbulbglobe Wet Bulb Globe Temperature °F windspeed10 10m Wind Speed m/s winddirection10 10m Wind Direction degrees windgust10 10m Wind Gust m/s windspeed80 80m Wind Speed m/s winddirection80 80m Wind Direction degrees visibility Visibility miles cloudtotal Total Cloud Cover % (0% = clear, 100% = cloudy) solar Downward Shortwave Solar Flux W/m² prain Probability of Rain % psnow Probability of Snow % pfrzr Probability of Freezing Rain % picep Probability of Ice Pellets % precip Total Liquid Equivalent Precipitation (accumulated to forecast hour) inches snow Total Snowfall (accumulated to forecast hour) inches
2026-03-17	Poly-Panels on StormVista can now support 16 images (4x4) up from 9 (3x3). https://www.stormvistawxmodels.com/sv/4panels
2026-03-16	New feature with on-demand clustering enables you to progress clusters into future periods. https://www.stormvistawxmodels.com/sv/ondemand/clustering You will see the new option to "Select Other Display Period"
2026-03-11	Canadian ensemble hourlies have been added to StormVista. https://www.stormvistawxmodels.com/sv/hourly-forecasts/KORD/2026031100z/none/imperial https://www.stormvistawxmodels.com/api#/paths/model-data-model---date---cycle-z-city-extraction-all-stations-hourly_-region-.csv/get
2026-03-10	On-demand clustering now allows you to cluster multiple days using your custom blend of models (instead of one set period or hour). https://www.stormvistawxmodels.com/sv/ondemand/clustering - Choose the Daily Composite option when submitting your request. This will allow you to create your own mega clusters, but note that larger volume of model inputs will take longer to produce.
2026-03-02	NOAA CFS subseasonal forecasts out 30 days are added to SV for city and degree day forecasts. These are updated each day on the 0z cycle, like the other subseasonal models (but only 4 members). See degree day changes here: https://www.stormvistawxmodels.com/sv/weekly-dd-changes/cfs-weekly/gw_hdd/2026030200z See city extraction here (both grid-corrected and raw available): https://www.stormvistawxmodels.com/api#/paths/model-data-longmodel---date---cycle-z-city-extraction-corrected-max-min_-region-.csv/get See degree days in API here: https://www.stormvistawxmodels.com/api#/paths/model-data-wkmodel---date---cycle-z-wdd-national.csv/get
2026-02-25	New subseasonal daily analog composites are available for the CFS and European weeklies: https://www.stormvistawxmodels.com/sv/weekly-analogs-daily Subseasonal analog-based forecast line charts for weighted degree days are also now available here: https://www.stormvistawxmodels.com/sv/wdd-weekly-analog-daily
2026-02-23	Subseasonal GEFS weeklies city high/low and weighted degree days added to StormVista throughout SV API feeds (City-Extraction- Long and WDD-Long) Can track DD changes here: https://www.stormvistawxmodels.com/sv/weekly-dd-changes/gfs-ens-weekly/gw_hdd/2026022200z
2026-02-03	Weighted degree day histograms on SV now have a custom/on-demand option: https://www.stormvistawxmodels.com/sv/wdd-histograms/ Choose the Custom button instead of the NWP or AI models.
2026-01-29	For the regional population-weighted HDDs for Russia, we need to remove Omsk, UNOO and are recalibrating the other station weights in response. These changes will take effect over the weekend. New normal and history will be available via the api this weekend too. Sorry for any inconvenience this may cause.
2026-01-28	New Spain and UK solar generation forecasts are added to website and api. See examples here: https://www.stormvistawxmodels.com/sv/solargen/2026012806z/uk https://www.stormvistawxmodels.com/api#/paths/model-data-model---date---cycle-z-renewables--region--solargen-forecast.csv/get
2026-01-27	SV histograms for city temperatures now include AI models and options to choose which models you want in the calculation (choose the Custom button to pick your models). https://www.stormvistawxmodels.com/sv/ensemble-histograms
2026-01-27	New snow and ice change maps (compared to prior cycle) now available on NOAA NBM model. Changes are very small frequently, but some cycles, like the 7z linked here, show bigger changes. https://www.stormvistawxmodels.com/sv/model/nbm/07z/ma/304-1-hr-snow-total-change Seems like the 1z, 7z, 13z, and 19z cycles show the most changes as new data are included.
2026-01-26	New ice maps added for GFS ensemble: https://www.stormvistawxmodels.com/sv/model-maps/model-gfs-ens-suite/cycle-12/region-na/image-293-surface-ice-total
2026-01-22	Ice forecasts added for Euro Op model. See examples here: https://www.stormvistawxmodels.com/sv/model-maps/model-ecmwf-suite/cycle-06/region-ma/image-293-surface-ice-total https://www.stormvistawxmodels.com/sv/model-maps/model-ecmwf-suite/cycle-06/region-ma/image-294-surface-ice-48hr https://www.stormvistawxmodels.com/sv/model-maps/model-ecmwf-suite/cycle-06/region-ma/image-295-line-ice-total https://www.stormvistawxmodels.com/sv/model-maps/model-ecmwf-suite/cycle-06/region-ma/image-296-line-ice-48hr
2026-01-14	European weekly wind generation outlooks now available about 100 minutes faster on website and API (around 730am ET). https://www.stormvistawxmodels.com/sv/windgen-weekly
2026-01-07	Beta testing power/load forecasts on StormVista now has multilinear regression outputs for 15, 30, and 45-day periods. Website here: https://www.stormvistawxmodels.com/sv/power-load API here: https://www.stormvistawxmodels.com/api#/paths/model-data-model---date---cycle-z-power-load--reg--hourly-load-forecast.csv/get
2026-01-02	France and Italy solar generation added to StormVista. https://www.stormvistawxmodels.com/sv/solargen/2026010212z/france https://www.stormvistawxmodels.com/sv/solargen/2026010212z/italy Also on API: https://www.stormvistawxmodels.com/api#/paths/model-data-model---date---cycle-z-renewables--region--solargen-forecast.csv/get
2025-12-30	New AI Teleconnection Round Up Emails Available on StormVista. You can add it to your distribution here. This is similar to the regular model teleconnection roundup that is updated on the 0z and 12z cycles: https://www.stormvistawxmodels.com/sv/custom-email-builder/additional AI Teleconnection Round-up: 0z and 12z summary of AI teleconnection values and trends
2025-12-29	You can now share custom emails on StormVista with other users. https://www.stormvistawxmodels.com/sv/custom-email-builder/ A new button option called share code will allow you to send a code to colleague that they can import (import option at top of page). You can also click multiple emails and choose "bulk share code" to send more than one.

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