4. Forecast Applications

Boundary Layer » Maximum Temperature Geographic Limitations

Note that this simple, straightforward method does have its limitations and therefore must be applied with care.

Generally the technique will not work at locations near a large body of water.

For higher elevations such as the High Plains of North America or mountain areas, the 850 hPa reference level may be at or below the surface elevation. In these cases, 700 hPa or some other level may be more appropriate, depending on local elevation. It is best to consult or develop a local climatology of soundings in order to determine the appropriate reference level for a given season or station elevation.