That's not entirely correct! While Texas is located in the Northern hemisphere and the Western hemisphere, latitude and longitude numbers are *not* always followed by N or W in Texas.

Here's why:

* Latitude: Latitude measures distance north or south of the equator. Since Texas is located north of the equator, all latitude values will be followed by the letter N.

* Longitude: Longitude measures distance east or west of the prime meridian. However, Texas is located both east and west of the prime meridian. The easternmost part of Texas is west of the prime meridian, but the westernmost part of Texas is east of the prime meridian. This means that:

* Locations west of the prime meridian will be followed by the letter W.

* Locations east of the prime meridian will be followed by the letter E.

For example:

* Austin, Texas: 30.2672° N, 97.7431° W (west of the prime meridian)

* El Paso, Texas: 31.7619° N, 106.4850° W (west of the prime meridian)

* Galveston, Texas: 29.3153° N, 94.7778° W (west of the prime meridian)

* Texarkana, Texas: 33.2383° N, 94.0405° W (west of the prime meridian)

* Brownsville, Texas: 25.9012° N, 97.5027° W (west of the prime meridian)

The only exception would be locations extremely far east, very close to the prime meridian, but these are highly unlikely to be found in Texas.

So, while most locations in Texas will have latitude numbers followed by 'N' and longitude numbers followed by 'W', some locations close to the Eastern time zone might actually have 'E' for longitude.