(In 10.8, Apple Calendar will always display an additional alert that says None. To add an additional alert, click the arrow next to None .). Then repeat steps 2 through 4. 1  Once you have added your desired number of alerts for that event, simply click outside the event.
Tomball is a city in Harris County in the U.S. state of Texas, a part of the Houston metropolitan area. The population was 10,753 at the 2010 census. In 1907, the community of Peck was renamed Tomball for local congressman Thomas Henry Ball, who had a major role in the development of the Port of Houston.
Tomball, Texas - Basic Facts. The City of Tomball had a population of 11,601 as of July 1, 2016. The primary coordinate point for Tomball is located at latitude 30.0974 and longitude -95.6194 in Harris County. The formal boundaries for the City of Tomball (see map below) encompass a land area of 11.94 sq. miles and a water area of 0.17 sq. miles.