Station Name: Pella 5SW - Red Rock Lk (TW)
Data Source: USGS

Elevation Above Sea Level: 699 feet

Nearest Address:
Horn's Ferry Bridge
Pella, IA 50219
Marion County

GPS Coordinates: 41.3642, -92.9756

Nearby Water Temperatures

Flash Flood Warning issued July 20 at 9:07PM CDT until July 21 at 3:15AM CDT by NWS Des Moines IA

Effective: Mon July 20, 2026, 9:07 PM
Expires: Tue July 21, 2026, 3:15 AM

FFWDMX The National Weather Service in Des Moines has issued a * Flash Flood Warning for... Northeastern Dallas County in central Iowa... Western Polk County in central Iowa... * Until 315 AM CDT Tuesday. * At 907 PM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 2 and 4 inches of rain have fallen. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Des Moines, West Des Moines, Ankeny, Urbandale, Johnston, Clive, Altoona, Waukee, Norwalk, Pleasant Hill, Grimes, Perry, Windsor Heights, Carlisle, Polk City, Saylorville, Dallas Center, Granger, Woodward and Saylorville Lake. Expect flash flooding in the Fourmile Creek Basin.

For the latest stream observations and forecasts refer to weather.gov/desmoines/water. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.

Flood Warning issued July 20 at 9:02PM CDT until July 21 at 2:00PM CDT by NWS Des Moines IA

Effective: Mon July 20, 2026, 9:02 PM
Expires: Tue July 21, 2026, 2:00 PM

...The National Weather Service in Des Moines IA has issued a Flood Warning for the following rivers in Iowa... Fourmile Creek at Des Moines Easton Blvd affecting Polk County. * WHAT...Moderate flooding is forecast. * WHERE...The Fourmile Creek at Des Moines Easton Blvd, or from below Interstate 80 to the Des Moines River. * WHEN...From late tonight to early tomorrow afternoon. * IMPACTS...At 14.0 feet, Widespread flooding occurs along the reaches of the creek primarily upstream from Easton Blvd near the Hubbell overpass. Water affects lowland areas of the community center near Easton Blvd. * ADDITIONAL DETAILS... - At 8:45 PM CDT Monday the stage was 5.3 feet. - Forecast...The river is expected to rise above flood stage just after midnight tonight to a crest of 14.1 feet late tonight. It will then fall below flood stage tomorrow morning. - Flood stage is 12.5 feet.

Be especially cautious at night when it is harder to recognize the dangers of flooding. For the latest stream observations and forecasts refer to weather.gov/desmoines/water. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. River forecasts include observed precipitation plus forecast precipitation over the next 24 hours.