South Dakota Weather Alert: Sioux Falls Faces Heavy Rain and Flooding Threat Thursday
SIOUX FALLS, S.D. — Drivers and residents across eastern South Dakota should prepare for heavy rain and potential flooding Thursday, as thunderstorms move through the Sioux Falls area.
NWS Warns of Flooding Risks
The National Weather Service in Sioux Falls says storms will strengthen Thursday afternoon, bringing locally heavy rainfall. The highest impacts are expected along the I-29 and I-90 corridors, where runoff may quickly pool on roadways.
Low-lying areas, underpasses, and neighborhoods with poor drainage are especially vulnerable. Officials warn that urban flooding could lead to dangerous conditions during the evening commute, when visibility may be reduced by downpours.
Rainfall Totals and Storm Hazards
Meteorologists say rainfall totals could exceed an inch in some spots, with the potential for storm cells to drop even heavier bursts.
Other risks include:
- Small stream flooding in rural areas.
- Brief spin-up funnels, though the tornado risk is considered low.
- Slowed or hazardous travel across Minnehaha and Lincoln counties.
Preparing for the Storms
Officials advise residents to:
- Charge mobile devices in case of power outages.
- Secure outdoor furniture or equipment ahead of gusty winds.
- Avoid driving through water-covered roads — just a few inches can cause vehicles to stall or be swept away.
Authorities also emphasize monitoring local weather alerts throughout the day for updated warnings.
Forecast Beyond Thursday
Storm chances will taper off late Thursday night, followed by cooler and drier air Friday. The weekend looks much calmer, with temperatures returning to the upper 70s:
- Thursday: Showers and storms likely, high near 77. Heavy rain possible.
- Friday: Chance of showers early, clearing later, high 71.
- Saturday: Partly sunny, high 78, calm winds.
- Sunday: Mostly sunny, high 81, dry.
- Monday: Sunny, high 83, warm and quiet.
Thunderstorm chances may redevelop by midweek, so residents should stay prepared for another round of unsettled weather.
Will you be traveling on I-29 or I-90 during Thursday’s storms in Sioux Falls? Share how you plan to prepare in the comments at SaludaStandard-Sentinel.com.
