Which of the following would not be entered as a visibility value on MF1M-10?

When recording visibility values on the MF1M-10, specific standards dictate which values are acceptable. The visibility must be recorded using fractional values that are deemed standardized for reporting purposes.

In this case, the value of 7/16 is not typically used in weather observations because it does not align with the common fractions utilized in visibility reporting. Fractions like 1/4, 1/2, and 3/8 can be easily interpreted and are recognized within standard meteorological practices. The fractions used in observations are usually those that contribute to a clear communication of conditions on the field, and 7/16 does not fit this criterion, as it is not commonly used or understood in this context.

Thus, only the values that fall within the accepted categories of visibility are recorded, and since 7/16 is not one of them, it would be excluded from the MF1M-10 reporting.