# THOR Storm Mapper

> Nationwide hail maps and severe-weather research for roofing contractors. THOR combines NOAA/SPC reports, Market Priority, replay, property history, alerts, exports, and built-in canvassing with lead import, map pins, dispositions, call/drive actions, Storm Hits, and monitoring.

THOR Storm Mapper is a browser-based storm research platform for roofing contractors, storm chasers, public adjusters, homeowners, and property professionals. It helps users review reported hail, tornado, and wind activity and decide where closer investigation may be useful.

**Price:** $34 USD per month after a 14-day free trial. No credit card is required for the trial. One subscription covers all 50 states.

**Interactive history:** Up to 24 months of NOAA/SPC storm reports on the authenticated map. Property storm-history reports can include available nearby archived events going back to 2014.

THOR combines point reports, radar imagery, radar-derived hail swaths, and Market Priority in one working map for market research, property reports, exports, and follow-up.

## Primary public pages

- [Home](https://www.thorstormmap.com/): Product positioning, $34 monthly price, 14-day no-card trial, and access link.
- [Hail map for roofers: features and pricing](https://www.thorstormmap.com/features): Complete product workflow, Market Priority, pricing, reports, exports, alerts, built-in canvassing, and buyer FAQ.
- [Why THOR is the smarter hail-map buy](https://www.thorstormmap.com/alternatives): THOR-first comparison of published prices, contractor workflow, and the value gap against competing products.
- [Hail map FAQ for roofers](https://www.thorstormmap.com/faq): Direct answers about price, coverage, NOAA reports, swaths, replay, exports, alerts, and Market Priority.
- [About THOR](https://www.thorstormmap.com/about): Product purpose and intended users.
- [Hail maps by state and city](https://www.thorstormmap.com/hail-map): Public index for all 50 state pages and 150 city pages.
- [Blog](https://www.thorstormmap.com/blog): Hail-map, NOAA data, radar, workflow, and product guides.
- [Help](https://www.thorstormmap.com/help): Product instructions and field guidance.
- [Legal](https://www.thorstormmap.com/legal): Terms, privacy, and service limitations.

## Current product capabilities

- NOAA/SPC hail, tornado, and wind reports across all 50 states.
- Market Priority ranks loaded storm events by cached Census households, residential density, population, or residential score, with top 50%, 25%, and 10% filters.
- Storm View and Impact View with state, county, and ZIP context where available.
- Live and historical radar plus Timeline playback for loaded storm periods.
- Radar-derived hail swaths shown beside point reports for broader storm-path context.
- Tornado tracks, damage corridors, outbreak clusters, and Heat Grid analysis.
- Address search and saved PDF property storm-history reports.
- General location alerts from 5 to 300 miles, subject to browser and device push support.
- Built-in canvassing with CSV lead import, long-press map pins, dispositions, call and drive actions, property reports, Storm Hits history, and local 1–5 mile or fixed 25-mile monitoring.
- Filtered state-level CSV and KML storm-event exports.
- Responsive phone, tablet, and desktop browser access; optional PWA installation.

## Comparison pages

- [THOR vs. HailTrace](https://www.thorstormmap.com/alternatives/hailtrace)
- [THOR vs. Interactive Hail Maps and Hail Recon](https://www.thorstormmap.com/alternatives/interactive-hail-maps)
- [THOR vs. HailStrike](https://www.thorstormmap.com/alternatives/hailstrike)
- [THOR vs. HailSpectrum](https://www.thorstormmap.com/alternatives/hailspectrum)

THOR publishes these comparisons and competes with the listed products. Each page links to the official source used to verify current public prices and feature packaging. Product facts were reviewed on September 11, 2026.

## Markdown pages

- [Home context](https://www.thorstormmap.com/home.md)
- [About context](https://www.thorstormmap.com/about.md)
- [Features context](https://www.thorstormmap.com/features.md)
- [Hail-map buyer guide](https://www.thorstormmap.com/alternatives.md)
- [FAQ context](https://www.thorstormmap.com/faq.md)
- [Best hail map apps for roofers](https://www.thorstormmap.com/blog/best-apps-for-storm-chasers-roofing.md)
- [Consolidated site context](https://www.thorstormmap.com/llms-full.txt)

## Discovery files

- [Sitemap](https://www.thorstormmap.com/sitemap.xml): 230 existing public URLs, including 201 hail-map pages, 17 blog articles, and 12 core pages.
- [Robots rules](https://www.thorstormmap.com/robots.txt)

Updated: 2026-09-11.