rdale
EF5
Dan Cobb from NWS GRR has revised his snow accumulation algorithm (a very old version is in Bufkit as it's snow table) and I've incorporated that into the web feed... http://66.70.209.226/weather/snow/output.txt (and sub in the desired location into output, so Lansing MI would be http://66.70.209.226/weather/snow/klan.txt )
1) Ptype logic has been adjusted to better detect mixed precip.
2) Output Ptypes of SNZRPL and SNRAPL are now possible.
3) Default sleet ratio has been reduced from 3:1 to 2:1 and default FZRA ratio has been reduced from 1.09:1 to 1.05:1. This should result in more conservative sleet and ice accumulations.
4) Now provide separate accumulations of sleet (ice pellets) and freezing rain.
5) Accumulation of sleet or snow is not allowed above a temp of 32.9F.
6) Output has been reorganized into an hourly group and storm-total group. I have added 6 hour (12 hour for GFS) separators for ease of reading the table.
7) Fixed bug that resulted in crashes when using GFS bufkit files. The issue was due to a slight variation in GFS bufkit file formats generated locally versus Penn State website.
The critical temperature for refreezing rain drops is -6C. The critical temperature for ice in cloud remains at -8C with an RH threshold of 85%.
1) Ptype logic has been adjusted to better detect mixed precip.
2) Output Ptypes of SNZRPL and SNRAPL are now possible.
3) Default sleet ratio has been reduced from 3:1 to 2:1 and default FZRA ratio has been reduced from 1.09:1 to 1.05:1. This should result in more conservative sleet and ice accumulations.
4) Now provide separate accumulations of sleet (ice pellets) and freezing rain.
5) Accumulation of sleet or snow is not allowed above a temp of 32.9F.
6) Output has been reorganized into an hourly group and storm-total group. I have added 6 hour (12 hour for GFS) separators for ease of reading the table.
7) Fixed bug that resulted in crashes when using GFS bufkit files. The issue was due to a slight variation in GFS bufkit file formats generated locally versus Penn State website.
The critical temperature for refreezing rain drops is -6C. The critical temperature for ice in cloud remains at -8C with an RH threshold of 85%.