Several rounds of overnight thunderstorms soaked parts of northeastern Colorado with up to a foot of heavy rains, prompting new flash flood warnings throughout the weekend.
Six to 12 inches of rain fell over portions of Yuma County on Thursday evening extending over the border into several counties in Kansas, according to the National Weather Service (NWS).
The NWS in Goodland issued a flash flood warning until 5:45 p.m. on Friday for east central areas of Yuma County.
Continued downpours expected on late Friday afternoon and evening could contribute to ongoing and additional flooding. Many areas are likely to see heavy rain including the I-25 corridor, adjacent plains, and San Juan Mountains. Areas burned by wildfires will also be especially vulnerable to flash flooding.
Pattern remains favorable for afternoon showers & t-storms today into this weekend. Today, highest chances across the mountains, high valleys, & parts of the I-25 corridor. Continue to monitor an increased flooding risk during this time, especially for area burn scars. #cowx pic.twitter.com/NuhC3Tvo9v— NWS Pueblo (@NWSPueblo) July 24, 2020
According to the NWS, "stronger storms will produce locally heavy rain and minor street or lowland flooding, with up to an inch of rain in 20 to 30 minutes. A couple storms may reach severe limits from the Palmer Divide east and northeast across the plains toward Akron and Holyoke, with the main threat being wind gusts around 60 mph and hail up to 1 inch in diameter."
Strong thunderstorm moving thru southeast Aurora produced over one inch of rain in 20 minutes & wind gusts to 45 mph. Minor street flooding was also observed. The storm was moving northeast at 20 mph. Thunderstorms will continue to increase in coverage this afternoon. #cowx pic.twitter.com/yWGsYOuzHB— NWS Boulder (@NWSBoulder) July 24, 2020
There will be daily chances for showers and thunderstorms, with the strongest storms expected during the late afternoon and evening hours. Impacts may include rock and mudslides, sudden increases in water levels in slot canyons, frequent lightning, gusty winds, and hail varying in size.
Editor's Note: All weather statements are subject to change or extend. Flash flood warnings should be taken seriously. Drivers are advised to use extreme caution on the roads. Do not drive around barricades or into flooded areas. Check CDOT’s Facebook, Twitter (@coloradodot) or cotrip.org for closures and delays on highways and roads across Colorado.