ZIP code 37748, covering Harriman, TN, has 64 natural disaster events in the historical record. These include 41 hailstorms, 10 floods, and 6 tornadoes. Total documented property damage amounts to $2.8M. These events have resulted in 10 recorded deaths and 28 injuries.
With 41 recorded incidents (64% of all events), hailstorms are the leading natural hazard for this ZIP code. The most recent recorded hailstorm occurred on Sep 4, 2025.
Harriman has experienced 10 floods on record. Of these, 3 (30%) 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 $742K in documented property damage. The most recent recorded flood occurred on May 9, 2024.
Harriman has experienced 6 tornadoes on record. One event reached severity level 4 or 5 on the normalized scale. The highest recorded severity for tornado-related events here is 4/5 (severe). Tornado-related events have caused a combined $2M in documented property damage. 7 fatalities have been attributed to tornadoes in this area. The most recent recorded tornado occurred on May 20, 2025.
Harriman has experienced 3 severe wind events on record. Wind-related events have caused a combined $3K in documented property damage. The most recent recorded severe wind event occurred on May 20, 2025.
Harriman has experienced 2 blizzards on record. Winter storm events have caused a combined $10K in documented property damage. 2 fatalities have been attributed to blizzards in this area. The most recent recorded blizzard occurred on Jan 14, 2024.
Harriman has experienced 1 extreme cold event on record. 1 fatality has been attributed to extreme cold events in this area. The most recent recorded extreme cold event occurred on Feb 16, 2015.
The most significant disaster event on record for Harriman was EF3 Tornado on Nov 10, 2002, which caused $968K in property damage and was linked to 7 fatalities. Another major event was EF1 Tornado (Feb 21, 1993), causing $500K in damages.
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Based on federal and state records, ZIP code 37748 has experienced 64 natural disaster events. The hazard types affecting this area include hailstorms (41 events), floods (10 events), tornadoes (6 events), severe wind events (3 events), blizzards (2 events), extreme cold event (1 event), and earthquake (1 event). The primary hazard is hailstorms, which account for 64% of all recorded events.
Hailstorms are the most frequently recorded hazard in Harriman, TN, with 41 events documented.
Yes, Harriman (ZIP 37748) has 10 recorded flood events. These floods have caused $742K in total property damage. The most recent flood on record occurred on May 9, 2024.
Harriman has 6 recorded tornado events in the historical record. The strongest tornado recorded reached severity level 4/5 on the normalized scale. Total property damage from tornadoes in this area is $2M. The most recent tornado was recorded on May 20, 2025.
The most damaging natural disaster on record for ZIP code 37748 was EF3 Tornado, which occurred on Nov 10, 2002. This event caused $968K in documented property damage. It resulted in 7 reported fatalities. It was rated at severity level 4/5.
Natural disasters have caused a documented total of $2.8M in property damage in the Harriman, TN area (ZIP 37748). 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 →