WRF, NAM, and GFS numerical weather prediction models update 4-times daily.

The Weather Research and Forecasting Model (WRF) 36-hour forecast (Last Updated: 12/12/2018 at 23:44:16)

The North American Model (NAM) 84-hour forecast (Last Updated: 12/12/2018 at 22:29:04)

The Global Forecast System (GFS) 186-hour Forecast (Last Updated: 12/13/2018 at 03:45:07)