THOR Storm Mapper is a nationwide hail-map and severe-weather research platform built for roofing contractors, storm chasers, public adjusters, and property professionals. By combining live NOAA and Storm Prediction Center data with an interactive mapping engine, THOR lets you identify hail-damaged neighborhoods, track tornado paths, and receive proximity alerts from any supported phone, tablet, or desktop browser.
In the roofing industry, speed is revenue. When a hail storm hits, the contractors who arrive first capture the most jobs. THOR Storm Mapper gives roofing crews a practical starting point by displaying official storm reports as they become available, visualized on a full-screen map with severity-coded overlays and county-level impact density analytics.
Identify hail-damaged neighborhoods before competitors. Plan canvassing routes by impact severity and county. Beat the competition to storm jobs.
Track live tornado paths, outbreak clusters, and severe weather systems on a full-screen map with NEXRAD radar overlays and real-time SPC data.
Assess regional storm damage for project pipeline planning. Use historical hail maps to identify high-frequency impact corridors in your service area.
THOR Storm Mapper overlays NOAA/SPC hail reports onto an interactive Google Maps canvas, color-coded by severity. Roofing contractors can instantly identify which neighborhoods took the hardest hits — by state, county, or street level — and prioritize canvassing routes before competitors arrive.
Powered by live NOAA and Storm Prediction Center feeds, THOR delivers tornado tracks, wind events, and hail reports within minutes of official issuance. Storm chasers and roofing crews get the same data used by professional meteorologists, presented in a field-ready interface.
Our outbreak detection engine groups related storm events into outbreak clusters, showing the full geographic footprint of a severe weather system. See which counties were hit hardest in a single outbreak and estimate the volume of storm-damaged roofs in each impact zone.
Toggle NEXRAD radar overlays directly on the map to correlate live precipitation with historical storm event data. Compare where rain is falling now against where hail fell last week — a critical workflow for roofing contractors timing their door-to-door canvassing.
Set a radius around your service area and receive instant alerts when a severe storm event is reported nearby. THOR monitors NOAA feeds continuously and notifies you the moment a hail or tornado event lands within your territory.
Access up to 24 months of NOAA/SPC storm reports on the interactive map. Filter by event type, severity, and date range to review recurring hail corridors, compare seasons, and plan where to investigate next.
The impact zone density view aggregates storm events by state and county, giving roofing contractors a bird's-eye view of where the most damage has accumulated over any time window. Drill down from national view to street level in seconds.
Market Priority ranks the storm events already loaded on the map by households, residential density, population, or a combined residential score. Use the top 50%, 25%, or 10% to narrow the current view while keeping the original weather reports intact.
Import leads from supported CSV exports or long-press the map to create a lead pin. Track dispositions, call or drive from the lead card, open property reports, review Storm Hits, and monitor each lead with local or 25-mile Area Monitor coverage.
THOR Storm Mapper is optimized for mobile, tablet, and desktop. Whether you're in the office planning tomorrow's routes or in the truck between jobs, the full feature set is available on any device with a browser — no app store download required.
Generate a one-click PDF storm history for any address — every NOAA-verified hail event, tornado, and wind record within 1 mile, going back to 2014. Reports are automatically saved to your account so you can re-download or share them anytime. Roofing contractors use them to close jobs on the doorstep. Public adjusters use them to build thorough storm documentation files. Homeowners use them to understand exactly what hit their property and when.
THOR Storm Mapper ingests data from the National Oceanic and Atmospheric Administration (NOAA) Storm Events Database and the Storm Prediction Center (SPC) severe weather reports. All storm events — including hail, tornado, and high-wind reports — are sourced from official government databases and updated continuously throughout active weather periods.
Radar overlays are sourced from NEXRAD (Next-Generation Radar) network data, providing real-time precipitation visualization across the continental United States. Interactive map history extends up to 24 months, enabling trend analysis and seasonal storm pattern research.
14-day free trial with no credit card. Then $34/month. Cancel anytime. No app download required — THOR Storm Mapper runs in any modern browser on desktop, tablet, or mobile.