If the employer's place of business is open, then generally employees don't get paid if they don't show. If the place of business is closed, then it is more likely that an employer will pay staff anyway. State laws may affect the latter (i.e., the law may require employers to pay staff scheduled, under certain circumstances, if the employer decides to close due to snow), but generally will not affect the former (i.e., the law won't force an employer to pay employees who don't show due to snow, if the employer's place of business is open).
Note that a general state of emergency may have no effect on whether a place of business is open or not.
YMMV.