United States Hail Map — Last 30 SPC Reporting Days
Review preliminary NOAA Storm Prediction Center (SPC) hail reports across the United States from the last 30 SPC reporting days. These reports are not damage estimates.
Nationwide hail research for contractors and property owners
Use these public state pages to begin local hail research, then open THOR to inspect storm reports with available hail swaths, NEXRAD radar, Timeline replay, Market Priority, property reports, and field workflows.
Open the nationwide hail map in THOR · Read the storm-data methodology
Browse hail maps by state
- Alabama Hail Map
- Alaska Hail Map
- Arizona Hail Map
- Arkansas Hail Map
- California Hail Map
- Colorado Hail Map
- Connecticut Hail Map
- Delaware Hail Map
- Florida Hail Map
- Georgia Hail Map
- Hawaii Hail Map
- Idaho Hail Map
- Illinois Hail Map
- Indiana Hail Map
- Iowa Hail Map
- Kansas Hail Map
- Kentucky Hail Map
- Louisiana Hail Map
- Maine Hail Map
- Maryland Hail Map
- Massachusetts Hail Map
- Michigan Hail Map
- Minnesota Hail Map
- Mississippi Hail Map
- Missouri Hail Map
- Montana Hail Map
- Nebraska Hail Map
- Nevada Hail Map
- New Hampshire Hail Map
- New Jersey Hail Map
- New Mexico Hail Map
- New York Hail Map
- North Carolina Hail Map
- North Dakota Hail Map
- Ohio Hail Map
- Oklahoma Hail Map
- Oregon Hail Map
- Pennsylvania Hail Map
- Rhode Island Hail Map
- South Carolina Hail Map
- South Dakota Hail Map
- Tennessee Hail Map
- Texas Hail Map
- Utah Hail Map
- Vermont Hail Map
- Virginia Hail Map
- Washington Hail Map
- West Virginia Hail Map
- Wisconsin Hail Map
- Wyoming Hail Map
Hail map questions
What is a hail swath map?
A hail swath is a radar-derived estimate of where a hail-producing storm cell traveled. THOR places swaths beside reported hail events, radar, and Timeline replay so you can study the full storm corridor.
Can I check hail history by address?
Yes. THOR searches by address, ZIP code, county, or place and creates Property Storm History reports that stay in My Reports for reopening, sharing, or browser PDF export.
Can roofing teams use THOR for canvassing?
Yes. THOR includes built-in canvassing with map pins, imported leads, statuses, notes, call and drive actions, follow-up dates, Storm Hits, Lead Storm Monitor, and exportable storm data.
How does THOR help prioritize storm damage work?
Market Priority compares the storm events already on the map with household, residential-density, population, and Residential Score context. Impact View, Heat Grid, and Timeline help the team sort the broader storm picture before field follow-up.