We've had several questions on whether the audio tones sounded by SW+ Alerts (commonly called "wake-me-up alerts") when a Tornado Warning or Severe Thunderstorm Warning can be heard if one's device is silenced or on Do Not Disturb. iOS devices and Android devices work differently. Let's take them one at a time.
Wake-me-up alerts from SW+ Alerts will not be audible if your phone is silenced/muted, on vibrate, or if "Do Not Disturb" is activated. However push notifications for your warning will still be sent and received by your device. This is how these devices are configured by Apple -- we have no control over this.
Our strong recommendation is that if severe weather is possible during a period while you are sleeping, or another time you want to be sure to receive alerts, keep your ringer turned on, volume up, and Do Not Disturb off.
NOTE: Apple has an "entitlement" program called Critical Alerts that allows apps they approve to override a silenced device or one that has Do Not Disturb enabled. We applied for this entitlement in fall 2019 and heard nothing back from Apple. We re-applied (with a more comprehensive request) on March 15, 2020. If we are granted access to Critical Alerts, we will update our recommendations to you. In the meantime, keep the volume up.
On modern versions on Android (9+), it is possible for you to configure your device's settings to allow SW+ Alerts audio notifications to override Do Not Disturb when it's activated. (This does not apply to silenced devices.)
From within the StormWatch+ app with an active subscription to SW+ Alerts, tap the Settings button on the Active Alerts card.
Tap "Send Test Notification," which should test your device to make sure your settings are correct and send you a test push notification. On the bottom of that test screen, tap "Go To Settings App," which takes you to your phone's settings for the StormWatch+ app.
You should see your device's app notifications options for StormWatch+. Tap "SW+ Alerts: Wake Me Up Alerts" and scroll to the bottom. You will see "Ignore Do Not Disturb." Turn this ON.
Wake-me-up alerts sent by SW+ Alerts will now sound even if Do Not Disturb is activated on your device.