Excerpt from the book Numerology; Key To Your Inner Self.

The letter Y: Vowel or Consonant.

Note that vowels are pronounced with free-flowing breath: Aaaaaaaa; Eeeeeeee; Ooooooo; Iiiiiiiiiiiii and Uuuuuuu. Consonants, on the other hand, have a distinct beginning or end. They are sharply begun or sharply finished. For Example: B, D, K, P, S, T, X, and so on.

There is a distinction in consonants, a harder edge than the soft and flowing vowels. The vowels reveal the tender you, your love, caring , and vulnerability. Consonants reveal certain of your characteristics that, among other things, shield your more vulnerable parts. Your public personality, which is revealed by the consonants, is a fundamental aspect of who you are, but these characteristics tend to be those aspects that you willingly show the world.

The vowels are A, E, I, O, and U. All other letters are consonants, except, in some cases, the letter Y.

The letter Y is inherently vacillating in its nature and usage, and consequently is sometimes a vowel, sometimes a consonant, depending upon how it is used in the name.

When determining if the Y is a vowel or a consonant, the basic rule is this:
When the letter serves as a vowel, and in fact sounds like one, it is a vowel. The same is true when the Y serves as the only vowel in the syllable. Examples of both of these cases are such names as Lynn, Yvonne, Mary, Betty, Elly, and Bryan.

However, if the Y does not provide a separate vowel sound, as when it is coupled with another vowel, it is considered a consonant.
In names such as Maloney or Murray, the Y is a consonant, because the vowel sound depends upon the long E in Maloney and the long A in Murray.

In general, the Y is a consonant when the syllable already has a vowel. Also, the Y is considered a consonant when it is used in place of the soft J sound, such as in the name Yolanda or Yoda.
In the names Bryan and Wyatt, the Y is a vowel, because it provides the only vowel sound for the first syllable of both names. For both of these names, the letter A is part of the second syllable, and therefore does not influence the nature of the Y.

More examples:
In Sydney, the first Y is a vowel, the second Y is a consonant.

In Billy, Sylvia, Missy, Kyle, Blythe, Sylvester, and Katy, the Y is a vowel

In Kay, Yeltsin, May, and Kuykendahl, the Y is a consonant.

The letter W: Vowel or Consonant.

Some numerologists consider the W a vowel in certain circumstances, such as when found between two vowels. I don't. However, if you do believe the W in some names should be considered a vowel, you have the option to designate it as such.

The Personal Profiles & Forecasts numerology software program, as well as our other programs, offer you the option of designating vowel or consonant status to the letters Y and W. The default for the letter Y is vowel, for the letter W the default is consonant. Whenever you do a reading for someone with a Y or W in the name, the following dialog box pops up:

If you type in the letter y, the software will read it as a vowel. If instead, you type in an asterisk (*), the software reads it as a y-consonant. Example: Barne* would be read as Barney with the y being a consonant. Barney would be read as Barney with the y being a vowel.

If you type in the letter w, the software reads it as a consonant. If you type in a pound sign  instead (#), the w  will be read as a vowel.

The science of numerology comes natural to us.

It is impossible to talk about patterns in life without symbols, and numerology is a language of symbols—the symbolism of numbers. Symbols serve to draw upon themselves the vast amount of knowledge that exists in the archetypal world. Archetypes are unique bundles of information, stored in the psyche until we have the means to attract their wealth into our lives. They convey knowledge of things that we previously did not know, or were not conscious of.
The beauty of the use of numbers—as we do in numerology—and human characteristics is that they are naturally and inherently joined. There is nothing arbitrary about joining the number 1 with originality or inventiveness, because 1, no matter what language the number is used in, means the beginning, the origin, the first, the birth. Similarly, you will find that in numerology all single digit numbers have a meaning that relates easily to our perspective of the rhythm of things. They just make sense!