Now it is raining, please open the umbrella and put it up over us.

Is this sentence correct?
You need to put 'so' in there:

'Now it is raining so please open the umbrella'

or make it two sentences:

'Now it is raining. Please open the umbrella.'

You don't need to say 'and put it up over us'. That is understood by what you are asking.
Thank you Wainwo

So can I say, "Now it is raining. Please put up umbrella over us"