cae Posted March 22, 2018 Author Share Posted March 22, 2018 March 20, 2018. Below is the stage IV precipitation analysis (verification data) for the event. The color scale is the same as used for the model runs. This captures 12z 03/20 to 12z 03/22. Some precip had started earlier than that south of the cities, but I can only get up to 48 hours at a time. Below are the 00z and 12z model runs up to the event. The Euro is top left, GFS is top right, GGEM is bottom left, and ICON is bottom right. This gif starts 168 hours before the last run. Before that there was another event, and weather.us doesn't have a way to distinguish between the precip totals. I'm still looking for a consistent way to compare model output for snowfall. Instead of snow depth maps, below I show different snow total maps. They include 10:1 maps for the GFS (top right) and GGEM (bottom left), qpf as snow for the Euro (top left), and the snowfall map for the ICON (bottom right) using its own ratios. This gif starts 108 hours before the last run. Before that there was another event. (Some snow from that event can be seen in NE MD in the earliest panels.) For comparison with the above plots, here are the reported snowfall totals from LWX spotter reports, the LWX analysis map, the Capital Weather Gang, and Tomer Burg (from Twitter). Link to comment Share on other sites More sharing options...
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