A statewide tornado drill will be conducted at 9:45 a.m. Tuesday.

If widespread severe weather threatens the commonwealth on that date, then the drill will be moved to Wednesday.

The town of South Boston Emergency Services will conduct a siren test as part of this event.

Residents should hear a long continuous siren blast during this exercise. This test should only last for approximately three to give minutes.

Since this year’s drill will use the required monthly test, most NOAA weather radios will not automatically sound an alert tone alert.

For those participating in the drill, including schools and businesses, turn on a NOAA Weather Radio by 9:40 a.m. and listen to the voice broadcast. Those listening to the broadcast will hear the audible test alert broadcast at 9:45 am. Local radio stations, TV stations and cable outlets also will broadcast the test message via the Emergency Alert System.

Tornadoes have occurred in every month of the year, but are most likely from April through September.

Have a plan, know a location and surroundings and have a way to receive watches and warnings from the National Weather Service.

Check to see if your smartphone is set to receive wireless emergency Alerts.

When a tornado watch is issued, review a plan and know where to seek safe shelter when a tornado warning is issued.

For more information about tornado preparedness, visit https://www.vaemergency.gov/threats/tornadoes.