How to pronounce “sonoma valley” in English

Now to give you a real world example, the wording on the left is from a package of Judy's Eggs, which is a popular organic, free-range brand from right herein northern California. It says these hens are raised in wide open spaces in Sonoma Valley, where they are free to roam, scratch,and play. Well, on the right, you can see an aerial photo of what Judy's Farm actually looks like.