ST. LOUIS – The National Weather Service is predicting moderate flooding in Valley Park this weekend, along with rising river levels across the St. Louis metro area.

At 9 a.m. Thursday, the Meramec River gauge at Valley Park measured 12.4 feet. Those levels have been steadily rising throughout the day and are expected to reach moderate flood stage by Friday morning between 7 a.m. and 8 a.m. The Meramec River will crest at 21 feet Saturday evening. It’ll fall back below flood stage by late Sunday evening.

Fenton will reach minor flood stage (23 feet) by Friday night and won’t dip below the mark until early Monday morning.

The Meramec River at Arnold has been above minor flood stage (24 feet) since April 30 and, after several days of drifting downward, is once again on an upward trajectory. It’ll hit its crest of 30.5 feet overnight Sunday into the morning. It’ll drop below flood stage by Tuesday evening, around 7 p.m.

Meanwhile, the Missouri River surpassed the minor flood stage level (20 feet) at Washington on Thursday morning and will crest at 21.3 feet by 9 a.m. Friday. It will drop below the flood stage late Saturday morning.

At the St. Charles gauge, the Missouri River is expected to crest at 26.6 feet Friday afternoon into the evening. St. Charles has been at a minor flood stage (25 feet) since dawn on Thursday and will remain so until Sunday afternoon.

In Alton, the Mississippi River is nearing minor flood stage (21 feet) at the Mel Price Lock and Dam and will surpass the marker by about 1 a.m. Friday. The river will crest around 9 p.m. at 22.3 feet and drop below the flood stage by 1 p.m. on Monday.

Finally, the National Weather Service is predicting the Mississippi River will come dangerously close to reaching minor flood stage (30 feet) but will ultimately crest inches shy of the mark. The river will dip below what’s known as the acting stage (28 feet) by late Sunday morning.