There will NOT be a death certificate in Nebraska as she did NOT die there... (Just saved you some money...)
If you haven't already obtained a copy, here is the article on the explosion form the March 23, 1944 edition of the Ogden Standard Examiner. I have the full page if you want it.
The owner of the family tree containing Alice:http://trees.ancestry.com/tree/1117838/person/-1993677994?ss...
has her email address in her profile (if you are not a member of Ancestry.com, you couldn't access it from home. It does not have much information on Alice within the tree. So, the owner either doesn't have it, or hadn't posted it).
I sent the owner a message to read this thread.
Considering the information about the blast, I would not expect to find a grave site, unless it was a cenotaph.
Tacoma, WA NOT related.