Recent Major Storm Days in Idaho: Hail and Wind History

Published 2026-07-20 · Updated 2026-07-20

Understanding Idaho's recent major storm days, including significant hail and wind events, is crucial for property owners and those involved in date-of-loss research.

Recent Major Storm Days in Idaho: Hail and Wind History

Idaho, with its diverse geography, experiences a variety of weather phenomena, including significant hail and wind events. For property owners, insurance professionals, and contractors, knowing the history of such weather can be invaluable for understanding potential property damage. StormAuditor provides detailed historical weather data, helping you uncover the dates and characteristics of past severe weather.

What are Major Storm Days?

Major storm days are characterized by severe weather events that meet or exceed official National Weather Service (NWS) criteria. This includes hail of 1.00 inch (quarter size) or larger, wind gusts of 58 mph (50 knots) or greater, or the occurrence of a tornado. These events have the potential to inflict significant property damage, ranging from cosmetic dents to functional failures on roofs and structures.

For example, asphalt shingles typically begin showing functional hail damage from impacts of 1.00–1.25 inches. Wind gusts exceeding 75 mph can lead to widespread shingle blow-off, especially for older roofing materials. Understanding these thresholds is key to interpreting storm data.

How StormAuditor Measures and Estimates Hail and Wind Events

StormAuditor utilizes a robust methodology to provide accurate historical weather estimates. Our SAHE-2 (Storm Auditor Hail Estimate v2) system primarily uses MRMS MESH (Maximum Estimated Size of Hail) swaths to determine hail sizes at a property location, supplemented by SPC (Storm Prediction Center) storm reports and NWS severe thunderstorm warnings. This approach helps pinpoint not just that hail occurred, but its estimated size relevant to your property.

For wind, our SAWE-2.9 (Storm Auditor Wind Estimate v2.9) methodology creates a detailed background wind field. This is built from high-resolution rapid refresh (HRRR) models and daily peak gust observations from NOAA ASOS/AWOS stations. We then apply an objective analysis using measured wind gusts from these stations and NWS Local Storm Reports (LSRs) to refine wind speed estimates. It's important to note that StormAuditor provides estimations based on these comprehensive data sources, not direct measurements at every specific point.

Our system reports data 'at location' if your queried address falls within a warning polygon or hail swath (with a 0.25-mile buffer). If direct at-location data is unavailable, we show nearby information within 1, 3, or 10 miles to provide context. Discover more about our approach at /methodology/wind and /methodology/hail.

Recent Notable Storm Days in Idaho

StormAuditor meticulously collects and processes National Weather Service (NWS) storm reports and other data to identify significant weather events. Here are some of the recent storm reports in Idaho that indicate impactful weather, including strong wind gusts and hail:

July 19, 2026 — 1 NW Ucon — TSTM WND GST 45.0 mph
July 19, 2026 — 2 NW Idaho Falls — TSTM WND GST 45.0 mph
July 19, 2026 — 5 SSE Roberts — TSTM WND GST 45.0 mph
July 19, 2026 — 3 E Idahome — TSTM WND GST 47.0 mph
July 18, 2026 — 9 SSW Mud Lake — TSTM WND GST 52.0 mph
July 18, 2026 — 12 E Howe — TSTM WND GST 57.0 mph
July 18, 2026 — 7 S Howe — TSTM WND GST 56.0 mph
July 18, 2026 — 6 SE Albion — NON-TSTM WND GST 52.0 mph
July 17, 2026 — 2 SSE Weippe — HAIL 1.0 inch

These reports highlight specific instances where strong winds, some approaching severe thresholds, and severe hail were observed across various parts of Idaho. Even wind gusts below the 58 mph severe threshold can cause damage, especially to older or weaker structures.

Practical Guidance for Date of Loss Research in Idaho

When investigating potential property damage due to weather, accessing accurate historical storm data is essential. Whether you are a homeowner, an insurance adjuster, a contractor, or an attorney, StormAuditor can help streamline your date of loss research. Knowing the precise timing and magnitude of past storm events can inform decisions about inspections, claims, and repairs.

How to Research a Date of Loss in Idaho

1. Start with the Address: Use our /address-lookup tool to find a property-specific historical weather report. This report will detail any severe hail, significant wind gusts, and NWS warnings that intersected your specific location.

2. Explore the Date: If you have a specific date in mind, our /date-of-loss-weather-research page can guide you through event timelines and data available for that period. You can also directly investigate general weather conditions for a past date using our /weather-on-this-date feature.

3. Review Hail Swaths: For hail-specific inquiries, the /hail explorer allows you to visualize MRMS MESH hail swaths across Idaho, identifying areas potentially impacted by different hail sizes.

4. Analyze Wind Events: The /wind explorer provides insights into historical wind gusts and severe thunderstorm warnings for the state, helping you understand regional wind patterns and specific event magnitudes.

By cross-referencing these tools, you can build a comprehensive understanding of the weather conditions a property experienced on a given date, supporting accurate and informed decision-making.

Limitations

While StormAuditor provides powerful insights, it's crucial to understand the inherent limitations of weather data. Radar-derived hail estimates (MESH) can sometimes under-estimate the size of wet hail or over-estimate in areas of very high reflectivity. Similarly, station-based wind observations, while reliable, are point measurements and may not capture every microburst or localized high gust that occurs between stations. Tornadoes, being very localized, can also be difficult to perfectly map after the fact. Furthermore, a property located within an NWS warning polygon was under a _warning_, but this does not definitively mean it experienced the peak conditions mentioned in the warning. StormAuditor provides estimates of weather events; we do not offer legal, insurance, or engineering advice, nor do we confirm damage causation. For that, qualified experts are needed. Read more on our /limitations page.

Related StormAuditor Tools

FAQ

When was the last major hail storm in Idaho?

According to recent storm reports, Idaho experienced a hail event of 1.0 inch in size on July 17, 2026, near Weippe. You can use our /hail explorer to search for other significant hail events.

How do I find storm history for my Idaho address?

You can easily find storm history by using StormAuditor's /address-lookup tool. Simply enter your property address to generate a detailed report of past hail, wind, and warning events.

What is considered a severe wind gust in Idaho?

According to the National Weather Service, a severe wind gust is generally defined as 58 mph (50 knots) or higher. Wind gusts around this speed, and even strong gusts below this threshold, can cause property damage.

Can StormAuditor confirm if my roof was damaged by a storm?

StormAuditor provides comprehensive historical weather data, including estimated hail sizes and wind speeds at your location. This data can inform discussions with qualified inspectors and engineers, but StormAuditor does not determine damage causation or condition. We provide the weather context; an expert evaluates the damage.

What size hail typically causes damage to asphalt shingles?

Asphalt shingles typically begin showing functional hail damage with impacts from 1.00 inch to 1.25 inches. However, older or softer shingles might show damage from smaller hail sizes. Hail of 1.75 inches or larger can commonly cause window breakage.

Where can I learn more about StormAuditor's data sources?

For a complete list and explanation of the data sources StormAuditor utilizes, please visit our /data-sources page. We rely on authoritative sources like NOAA, SPC, NCEI, and IEM archives.