The Yakima river PMD's (Pale Morning Duns) will start their daily emergence around 11:00 a.m. and get thicker into the hour.  The hatch will last about 4 to 5 hours, but the fish will remember them well into the evening.

The PMD nymph lives in logs, rocks and vegetation.

Coloration varies considerably from stream to stream; and may vary from week to week on the same stream.  If you wonder why your PMD pattern isn't working well, you may want to take a close look at the color of the actual PMD that may be hatching at the present time.


PMD Hatch


This hatch will last well into the month of June.  I recommend a Waterwisp PMD for the hatch.  We have been using this with great success.  I have had them refuse other PMD patterns that we have offered them, but the Waterwisp PMD has been remarkably producing some nice fish.



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