We live in the south. Everyone knows that when you lived down here, severe weather can pop up at any time. I have got several different severe weather apps on my phone, but MWN is consistently the first want to alert me every time. I spent the extra money and got the storm watch plus addition and it has been a godsend. Spend the money and buy the app and then get the storm watch plus additions. You will not regret it. Great app!