National Weather Service United States Department of Commerce

Tropical Moisture Brings Slight Risk of Excessive Rainfall to the Southwest; Strong to Locally Severe Storms on the Plains

Heavy rain and flash flooding are possible across portions of the Southwest through Friday, where Flood Watches are in effect. Strong to locally severe thunderstorms are possible today across portions of the Plains. A tropical wave is causing heavy rainfall in Puerto Rico and the Virgin Islands, which may cause urban and small stream flooding and landslides today. Read More >

PRIOR LAKE SPRING LAKE WATERSHED QPF FORECAST 
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 
602 AM CDT THU SEP 18 2025

PRIOR LAKE SPRING LAKE WATERSHED
TIME PERIOD                           QPF-6HR 

6 HOUR PRECIP ENDING AT 18/0600 CST     0.02  
6 HOUR PRECIP ENDING AT 18/1200 CST     0.02  
6 HOUR PRECIP ENDING AT 18/1800 CST     0.01  
6 HOUR PRECIP ENDING AT 19/0000 CST     0.06  
6 HOUR PRECIP ENDING AT 19/0600 CST     0.16  
6 HOUR PRECIP ENDING AT 19/1200 CST     0.06  
6 HOUR PRECIP ENDING AT 19/1800 CST     0.20  
6 HOUR PRECIP ENDING AT 20/0000 CST     0.05  
6 HOUR PRECIP ENDING AT 20/0600 CST     0.01  
6 HOUR PRECIP ENDING AT 20/1200 CST     0.04  
6 HOUR PRECIP ENDING AT 20/1800 CST     0.04  
6 HOUR PRECIP ENDING AT 21/0000 CST     0.00  
6 HOUR PRECIP ENDING AT 21/0600 CST     0.00  
6 HOUR PRECIP ENDING AT 21/1200 CST     0.00  
6 HOUR PRECIP ENDING AT 21/1800 CST     0.02  
6 HOUR PRECIP ENDING AT 22/0000 CST     0.01  
6 HOUR PRECIP ENDING AT 22/0600 CST     0.00  
6 HOUR PRECIP ENDING AT 22/1200 CST     0.00  
6 HOUR PRECIP ENDING AT 22/1800 CST     0.00  
6 HOUR PRECIP ENDING AT 23/0000 CST     0.03  
6 HOUR PRECIP ENDING AT 23/0600 CST     0.01  
6 HOUR PRECIP ENDING AT 23/1200 CST     0.00  
6 HOUR PRECIP ENDING AT 23/1800 CST     0.00  
6 HOUR PRECIP ENDING AT 24/0000 CST     0.00  
6 HOUR PRECIP ENDING AT 24/0600 CST     0.00  
6 HOUR PRECIP ENDING AT 24/1200 CST     0.00  
6 HOUR PRECIP ENDING AT 24/1800 CST     0.09

mean precipitation forecast

The precipitation forecast depicted above covers a 6 hour average for the following area:
Prior Lake Spring Lake Watershed areal map