Welcome to StratObserve

This site is intended to provide realtime plots of polar stratospheric conditions and other related products from the latest forecast data. Click a category from the menu above, and select a product from the dropdown menu.

Notices

• 2025-11-15: StratObserve will now be displaying plots for the Northern Hemisphere stratosphere by default. Plots for the SH will continue to be generated and available.

Changelog

• Added zonal wind + EP-flux cross sections; 20191111
• Changed the max windspeed panels in the strat. winds ensemble time series plots to polar cap averaged temperatures; 20181217
• Changed base period for calculating standardized anomalies of eddy heat fluxes from Sep - May to Oct - Apr; 20181215
• Got rid of the "latest" designation in the date dropdown menu so there's no confusion about what forecast date the plots are based on. StratObserve rolls out plots a bit slower than other places, so I don't want "latest" being confused; 20181204
• Added new products, including anomaly time series, and eddy heat flux longitude/pressure
  cross-sections; 20181120
• Updated the 3D vortex plots to use a better polar projection. Also added the ability to rotate the view of the 3D vortex plots (thanks for the suggestion, Michael Ventrice!); 20181120
• Enabled SSL and automatic redirect to https; 20181116
• Fixed bug that prevented viewing multiple vertical levels on Chrome (possibly other browsers); 20181115
• First online; 20181114