News (don't call it blog...)

WRF-GEM now for 3 days The WRF-GEM run driven by the Canadian global model GEM is now being computed for 3 days, instead of only 2. There is only one run in the morning (00Z).

3-day forecast WRF4km @00Z The morning run (00Z) of the 4km-WRF has been extended to cover a 3-day forecast period now. For the moment, the evening run (12Z) stops after day 2 (54h) as it used to.

Thunderstorm-composie archive back online Thunderstorm composite charts, based on 3h-forecasts of 12Z GFS runs for 15UTC, are back online archived in the section "Misc.". Past years are also available back until 2008.

GFS Meteogram generator Added a meteogram generator for the GFS, too. The meteograms are generated live via map click and cover the coming 6 days. The generation is now also speed-up, except for locations outside of Europe (still ca. 2 min).

Added plots to GFS output Several new plots have been added to the GFS maps. They include pressure tendencies, helicity and shear and an isentropic map for the PV2-plane.

GFS world weather up-to-date again Quasi-analysis (+6h forecast) maps for several regions of the world, as well as hemispheric and global plots of all available parameters.

Stratosphere maps up-to-date again Analysis and forecast maps for 20hPa level based on the GFS' 00Z/12Z runs have been re-implemented into the routine output.

GFS upgrade successful The National Center for Environmental Prediction (NCEP) has successfully upgraded its Global Forecast System (GFS). This update includes higher resolution output (now 0.25°) and better model physics, e.g. snow depth, clouds and near-surface temperature and winds.
More details: NCEP bulletin