enforced_measured_snow_height not always enforced

Mathias Bavay
2019-11-07T17:55:05Z

In this attached simulation, the measured snow height increments do not always lead to precipitation in Snowpack (both the the trunk and dev versions), despite high relative humidity, TA<0 and low radiation (there is no TSS but even generating TSS as TA-2.5 did not change anything).

**Attachments**:
* [io_shin2017sp.ini](/uploads/e82d7a883a1734195b5cc1e18ba4855e/io_shin2017sp.ini)
* [shin2017sp.smet](/uploads/f211da3badf30c52c355d5ebd1d0c7c3/shin2017sp.smet)
* [shin2017sp.sno](/uploads/32f19e07a9c0fc85756790613ccf4875/shin2017sp.sno)