Federal records document 173 natural disaster events in the Rock Valley, IA area (ZIP 51247). These include 113 hailstorms, 21 floods, and 21 severe wind events. Total documented property damage amounts to $39.7M. These events have resulted in 3 recorded deaths and 4 injuries.
Hailstorms represent the most common natural hazard in this area, accounting for 65% of all recorded events (113 total). Hail-related events have caused a combined $3.5M in documented property damage. The most recent recorded hailstorm occurred on Sep 21, 2025.
There have been 21 recorded floods in this area, representing 12% of all disaster events. Of these, 12 (57%) were rated at severity level 4 or 5 — the most intense on the normalized scale. The highest recorded severity for flood-related events here is 5/5 (extreme). Flood-related events have caused a combined $24.6M in documented property damage. The most recent recorded flood occurred on Jun 20, 2024.
There have been 21 recorded severe wind events in this area, representing 12% of all disaster events. Wind-related events have caused a combined $552K in documented property damage. The most recent recorded severe wind event occurred on Jul 28, 2025.
There have been 11 recorded tornadoes in this area, representing 6% of all disaster events. Tornado-related events have caused a combined $835K in documented property damage. The most recent recorded tornado occurred on Jul 28, 2025.
Rock Valley has experienced 7 blizzards on record. Of these, 4 (57%) were rated at severity level 4 or 5 — the most intense on the normalized scale. The highest recorded severity for winter storm events here is 5/5 (extreme). Winter storm events have caused a combined $10.2M in documented property damage. 3 fatalities have been attributed to blizzards in this area. The most recent recorded blizzard occurred on Jan 14, 2021.
The most significant disaster event on record for Rock Valley was Flood on Jun 20, 2024, which caused $13.2M in property damage. Another major event was Winter Storm (Apr 9, 2013), causing $10M in damages. Flood on Jun 1, 2019 also caused significant damage ($4M).
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Based on federal and state records, ZIP code 51247 has experienced 173 natural disaster events. The hazard types affecting this area include hailstorms (113 events), floods (21 events), severe wind events (21 events), tornadoes (11 events), and blizzards (7 events). The primary hazard is hailstorms, which account for 65% of all recorded events.
Hailstorms are the most frequently recorded hazard in Rock Valley, IA, with 113 events documented. These events have caused a combined $3.5M in property damage.
Yes, Rock Valley (ZIP 51247) has 21 recorded flood events. These floods have caused $24.6M in total property damage. The most recent flood on record occurred on Jun 20, 2024.
Rock Valley has 11 recorded tornado events in the historical record. The strongest tornado recorded reached severity level 3/5 on the normalized scale. Total property damage from tornadoes in this area is $835K. The most recent tornado was recorded on Jul 28, 2025.
The most damaging natural disaster on record for ZIP code 51247 was Flood, which occurred on Jun 20, 2024. This event caused $13.2M in documented property damage. It was rated at severity level 5/5.
Natural disasters have caused a documented total of $39.7M in property damage in the Rock Valley, IA area (ZIP 51247). This figure is based on historical records from FEMA, NOAA Storm Events Database, and USGS, and covers events from the 1950s through the present. Actual damages may be higher, as not all events have complete damage assessments.
Data sourced from FEMA (disaster declarations, NFIP flood claims), NOAA Storm Events Database, USGS Earthquake Hazards Program, and NIFC wildfire records. Historical coverage varies by source, with most records beginning in the 1950s–1970s. Full methodology →