forkyfork Posted February 3, 2020 Share Posted February 3, 2020 https://www.wxcaster.com/gfssnow.txt 1) Find the maximum temperature in the lowest 500 hPa in degrees K (MAXTMP) 2) If MAXTMP is greater than 271.16K, then the liquid equivalent ratio (RATIO) is 12.0 + 2.0*(271.16-MAXTMP) 3) If MAXTMP is less than 271.16K, then the liquid equivalent ratio (RATIO) is 12.0 + (271.16-MAXTMP) The 3-hourly snowfall (SNOW) is RATIO multiplied by the three hour liquid precipitation total. The accumulated snowfall (ACCUM_SNOW) is the sum of all the SNOW values up to that projection time. no accounting for riming or snowflake type. useless. Link to comment Share on other sites More sharing options...
bowtie` Posted February 3, 2020 Share Posted February 3, 2020 Are there any methods that are not stupid, or clownish? Link to comment Share on other sites More sharing options...
forkyfork Posted February 3, 2020 Author Share Posted February 3, 2020 looking at model soundings to determine where the lift will take place and making a best guess Link to comment Share on other sites More sharing options...
Hoosier Posted February 3, 2020 Share Posted February 3, 2020 We can all agree though that nothing is as stupid as the tropical tidbits maps when sleet is involved. Link to comment Share on other sites More sharing options...
twisted.minds Posted February 3, 2020 Share Posted February 3, 2020 Correct. It could be much, much worse though. Link to comment Share on other sites More sharing options...
Baroclinic Zone Posted February 3, 2020 Share Posted February 3, 2020 56 minutes ago, forkyfork said: looking at model soundings to determine where the lift will take place and making a best guess Link to comment Share on other sites More sharing options...
dendrite Posted February 3, 2020 Share Posted February 3, 2020 1 hour ago, bowtie` said: Are there any methods that are not stupid, or clownish? The Cobb method Link to comment Share on other sites More sharing options...
bowtie` Posted February 4, 2020 Share Posted February 4, 2020 4 hours ago, dendrite said: The Cobb method Could you share an article that explains this Cobb Method. I have looked in search engines but only come up with Spine angles, water absorption of paper products and some multicollinearity in some economic functions. Link to comment Share on other sites More sharing options...
Scotty Lightning Posted February 4, 2020 Share Posted February 4, 2020 Instead of complaining here, why not just complain directly to Evan Kuchera instead? Link to comment Share on other sites More sharing options...
dendrite Posted February 4, 2020 Share Posted February 4, 2020 24 minutes ago, bowtie` said: Could you share an article that explains this Cobb Method. I have looked in search engines but only come up with Spine angles, water absorption of paper products and some multicollinearity in some economic functions. https://meteor.geol.iastate.edu/~ckarsten/cobb/cobb_help.pdf https://ams.confex.com/ams/WAFNWP34BC/techprogram/paper_94815.htm Link to comment Share on other sites More sharing options...
bowtie` Posted February 4, 2020 Share Posted February 4, 2020 ^ Thank you for these informative links. Link to comment Share on other sites More sharing options...
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