In North Dallas there was just a really loud alarm...

They were either testing the siren (they are probably air-raid sirens, or ‘disaster’ sirens), which they do periodically. Or, there is severe weather heading your way. Although, I just looked at your radar, and you look good, weather wise.

Turn on radio or local TV.

First wednesday of the month. Classic time to sound emergency sirens.

i know around here they test the tornado warnings every first saturday of the month. i think at 1 pm. idk about around you though

In San Francisco they test the warning sirens every day at exactly noon. One of these days, we might just feel the BIG ONE…

The City’s outdoor weather warning system has 94 sirens that alert people who are outdoors to seek shelter in the event of a tornado. The system is tested on the first Wednesday of every month at 12:00 noon weather permitting. We do not test the sirens if the weather is bad or threatening; this helps to ensure that there will be no confusion as to whether it is a test or a real alert.

Uhm i didn’t hear anything, but idk have you heard anything like it since?