Playing Hooky by Jessica Gleason

Fear can spring forth from the most unlikely of places.
Professors Micah and Ryan ditch out on another boring faculty in-service and head to a local bar for a little day drinking. When bodies start dropping and an oppressive wind storm sweeps into town, they find themselves trapped in the bar for the long haul with a small group of terrified patrons and an attractive headstrong bartender.
As time runs out, and hope is wearing thin, the group needs to decide whether to wait for rescue or face the malevolent hungry winds.