Rosalia, WA (ZIP 99170) has a moderate disaster history with 17 recorded events. These include 8 hailstorms, 6 floods, and 1 earthquake. Total documented property damage amounts to $1M.
With 8 recorded incidents (47% of all events), hailstorms are the leading natural hazard for this ZIP code. Hail-related events have caused a combined $357K in documented property damage. The most recent recorded hailstorm occurred on Aug 12, 2022.
Rosalia has experienced 6 floods on record. Of these, 2 (33%) 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 $661K in documented property damage. The most recent recorded flood occurred on Feb 23, 2025.
Rosalia has experienced 1 earthquake on record. The most recent recorded earthquake occurred on Aug 2, 1969.
Rosalia has experienced 1 tornado on record. Tornado-related events have caused a combined $25K in documented property damage. The most recent recorded tornado occurred on Jun 15, 1954.
Rosalia has experienced 1 wildfire on record. The most recent recorded wildfire occurred on Aug 18, 2008.
The most significant disaster event on record for Rosalia was Flash Flood on May 16, 2015, which caused $420K in property damage. Another major event was 2.8" Hail (Aug 11, 2022), causing $350K in damages.
Explore disaster history for adjacent areas
Based on federal and state records, ZIP code 99170 has experienced 17 natural disaster events. The hazard types affecting this area include hailstorms (8 events), floods (6 events), earthquake (1 event), tornado (1 event), and wildfire (1 event). The primary hazard is hailstorms, which account for 47% of all recorded events.
Hailstorms are the most frequently recorded hazard in Rosalia, WA, with 8 events documented. These events have caused a combined $357K in property damage.
Yes, Rosalia (ZIP 99170) has 6 recorded flood events. These floods have caused $661K in total property damage. The most recent flood on record occurred on Feb 23, 2025.
Rosalia has 1 recorded tornado event 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 $25K. The most recent tornado was recorded on Jun 15, 1954.
The most damaging natural disaster on record for ZIP code 99170 was Flash Flood, which occurred on May 16, 2015. This event caused $420K in documented property damage. It was rated at severity level 5/5.
Natural disasters have caused a documented total of $1M in property damage in the Rosalia, WA area (ZIP 99170). 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 →