The Weather Forecasting Forum

RAOB Fog Index
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Author:  JohnShewchuk [ Sun Dec 23, 2012 4:23 am ]
Post subject:  RAOB Fog Index

I am currently developing a user-configurable fog forecast index (similar to RAOB's Severe Weather Table) which will consolidate a variety of individual parameters into one overall index. So far I'm adding the following parameters: Sfc wind speed, Sfc wind direction, Fog stability index, Fog threat, T-Td, Cloud cover, Lapse-rate (Sfc-3000ft), Avg RH% (in PBL), Month, and MRi (modified richardson index as developed by UPS). So, if there are any other favorites out there, I'd be interested in hearing from you.


Author:  JohnShewchuk [ Wed Dec 26, 2012 4:15 am ]
Post subject:  Re: RAOB Fog Index

So far I received 2 suggestions. (1) Develop two Indexes, one for Advection fog and one for Radiation fog -- that is a good idea. (2) Use the moon phase as a predictor -- ha ha -- very funny.


Author:  JohnShewchuk [ Fri Jan 25, 2013 2:17 pm ]
Post subject:  Re: RAOB Fog Index

The new Fog Index table is now complete ( and is available with the RAOB 6.4 Beta program (


Author:  Budgie [ Fri Jan 25, 2013 11:58 pm ]
Post subject:  Re: RAOB Fog Index

Sorry John, I missed the two spam posts which were on here.
Now deleted so your info can continue.
Keep up the good work. :mrgreen:

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