Tum'a: Missing Opportunity To Say Blessing

Situation

You wake up after sleeping for more than 30 minutes and need to say a blessing immediately or else you might lose the opportunity to do so.

What To Do

Even though you have not washed your hands after sleep, you should say the blessing.

Example

Situation

You are in bed and hear thunder.

What To Do

You should immediately say kocho u'gvurato even though you did not wash your hands (but you should quickly rub your hands on cloth or clothing first). If you then see lightning, you say oseh ma'aseh vreishit.