Shrimp and Macaroni Salad

1 box. of macaroni
2 tbsp. lemon juice
2 c. Miracle Whip Salad Dressing
1/4 c. chopped onions
1/4 c. diced celery
1 sm. pkg. of slivered almonds
2 c. small canned shrimp, drained
8 oz. cool whip

Cook the macaroni, rinse and drain. Marinate overnight in lemon juice and 1 cup of Miracle Whip. The next day, add in onion, celery, almonds and shrimp. Mix. Add cool whip and remaining 1 cup of Miracle whip.