Greg,
Semp seeds are TINY and tend to go right through many envelopes. I use glassine envelopes to store the seed (ungummed) and then put the envelope in a sealed coin envelope for further protection. Plan B is that you leave them in the paper bags and just crush them and plant them all in one fell swoop. Hold off until late February to actually plant as they might try to come up now and you'll lose many over the winter.
The rain is coming in HARD tonight. Not pretty!
Kevin