Campus Alert Archive
Dordt

Record Rain Drowns Sioux County and Dordt Mobilizes for a Flooded Rock Valley

IAfloodingadvisorymedium confidence
Confirmed Threat

More than 13 inches of rain on June 20-22, 2024 produced historic flooding across Northwest Iowa, with officials ordering all Rock Valley residents north of Highway 18 to evacuate just miles from Dordt University in Sioux Center. Dordt issued severe-weather guidance, sheltered displaced students, and its Campus Ministries mobilized flood relief as Governor Kim Reynolds declared a disaster for Sioux County.

Alerts
2
Response
—
Killed
—
Injured
—
Institution
Dordt University
Private Bachelors · IA
~1,800 studentsDordt Alert
Confirmed Timeline

Alert Sequence

2 messages in sequence

Some alert texts below are approximate reconstructions from news coverage, not confirmed verbatim transcripts. Reconstructed texts are shown in italic with a dashed border. Verified verbatim texts have a solid border and are marked accordingly.

INITIAL ALERTWEA/IPAWS
Approximate reconstructionReconstruction of NWS Sioux Falls flash-flood emergency for Sioux County193 chars
Flash Flood Emergency for Sioux County. This is a PARTICULARLY DANGEROUS SITUATION. Move to higher ground now. Do not travel on flooded roads. Follow all evacuation orders from local officials.

This text has been reconstructed from news coverage and may not reflect the exact original wording.

NWS issued rare Flash Flood Emergency wording during this event; the 'PARTICULARLY DANGEROUS SITUATION' tag is characteristic of those products. The exact campus-relayed text is reconstructed and marked unconfirmed.
The emergency drove the mandatory Rock Valley evacuation north of Highway 18, only a few miles from the Dordt campus in Sioux Center.
UPDATEEmail+1d
Approximate reconstructionDordt University news (Providing Hope through the Flood)205 chars
Dordt is safe and supporting students and neighbors affected by the flooding. Avoid travel on flooded roads in Sioux County. Displaced students needing housing or supplies should contact Campus Ministries.

This text has been reconstructed from news coverage and may not reflect the exact original wording.

The message reflects Dordt's pivot from hazard warning to relief coordination — Campus Ministries became the operational hub for displaced students.
Reconstructed from Dordt's own reporting on its flood response; marked unconfirmed pending an archived verbatim notice.
Context

Background

Dordt University, a small Christian college in Sioux Center, sits in the Sioux County corner of Northwest Iowa that absorbed more than 13 inches of rain from training thunderstorms on June 20-22, 2024. The Big Sioux River along the Iowa-South Dakota line crested near 45 feet — about seven feet above its prior record, and officials ordered all Rock Valley residents north of Highway 18 to evacuate, with more than 100 homes ultimately destroyed. Governor Kim Reynolds issued a disaster proclamation for Sioux County. While the Dordt campus itself escaped catastrophic damage, the university sheltered and resupplied displaced students and ran relief through Campus Ministries; in the months after, a Dordt environmental-studies class even partnered with Rock Valley on FEMA buyout floodplain planning.
Analysis

Key Findings

Over 13 inches of rain drove record Northwest Iowa flooding and a mandatory Rock Valley evacuation just miles from Dordt
The Big Sioux River crested about seven feet above its previous record near the Iowa-South Dakota line
Dordt's response shifted from hazard warning to relief, with Campus Ministries housing and resupplying displaced students
Outcome
Dordt's campus avoided catastrophic damage, but nearby Rock Valley saw mandatory evacuations and 100-plus homes destroyed; Dordt sheltered and resupplied displaced students and ran relief efforts. No campus deaths were reported.
Provenance

Sources

  1. Official
    Heavy Rain and Historic Flooding of Northwest Iowa - NWS Sioux Falls
    weather.gov
  2. Official
    Providing Hope through the Flood - Dordt University
    dordt.edu
  3. News
    Heavy Rains Deluge Sioux County - Sioux County Radio
    siouxcountyradio.com
  4. Source
    South Dakota Flooding, June 20-22, 2024 - Climate Mainstreet (HPRCC)
    hprcc.unl.edu
Tags
floodingiowasioux-countyrock-valleyevacuationweather2024
Added May 2026Updated May 2026Via ingestion