|Router may have reset itself to "wireless disabled".|
Re-enable it in the router's web-based configuration utility.
If it's already enabled but no wireless available, switch off the router, leave for one minute, then turn it on again.
Alternatively, if router has a 'Reset' button, use that. (sometimes you need to use an opened-up paper-clip to push the hidden reset button).
If wireless remains dead after all that, it may have been damaged by the storm.