weatherAlerts in REST API?

Has anyone been able to receive "weatherAlerts" back when calling the REST API?

I can successfully pull currentWeather, forecastDaily, forecastHourly, and forecastNextHour, but I can't get it to return anything for a weatherAlert. This is true even when I'm using a location that I know has a current weather alert from the National Weather Service.

For what it's worth, it is listed as a possible dataset when I check using "availability."

Thanks!