|GFS 04/09/13 03 UTC: Sea Level Pressure and 3hr Precipitation|
The NAM for the same time also shows a large pressure gradient. Below are the predicted surface winds at 03 UTC.
|NAM HIRES, Northern Utah: 04/09/13 03 UTC: 10-m winds and 3hr Precipitation|
Check out the Wasatch Weather Weenies blog for more about the downslope windstorm.