  Suppose that $O_L$ is the ring of integers of a number field $L$, and suppose
that $f(z)=\sum_{n=1}^\infty a_f(n)q^n\in S_k\cap O_L[[q]]$ (note: $q :=
e^{2\pi iz}$) is a normalized Hecke eigenform for $\mathrm{SL}_2(\mathbb{Z})$.
We say that $f$ is non-ordinary at a prime $p$ if there is a prime ideal
$\mathfrak{p}\subset O_L$ above $p$ for which $a_f(p)\equiv 0 \ (mod\
{\mathfrak{p}})$. For any finite set of primes $S$, we prove that there are
normalized Hecke eigenforms which are non-ordinary for each $p\in S$. The proof
is elementary and follows from a generalization of work of Choie, Kohnen and
the third author.
