Finding the first row which stratifies two conditions in python data frame

I have a data frame which looks like this:

data frame

I want to write a code which locates points that have distance less than 250 from the next point. When it finds the point searches for the first point that is more than 250 away with speed greater than 5. For example in the sample data set, first find row 7 and then locate row 10 which is more than 250 away and has speed of 10.8 and return the index of row 10 I have write this code so far:

for i in (number+1 for number in range(data_gpd.index[-1]-1)):
if (data_gpd['distance'][i+1]< 250):

I'm not sure what should I do after this condition. I had in mind to use "Next" statement with conditions but I was only able to find it for list comprehension with one condition.

I really appreciate your help as I'm new to python and not sure which syntax would work better