Reports plus radar
See NOAA/SPC hail, wind, and tornado events beside NEXRAD radar overlay and replay.
THOR FOR STORM CHASERS & FIELD OBSERVERS
Read the storm story on one field-ready map.
Layer severe-weather reports, radar, tracks, outbreaks, hail swaths, and Timeline replay before, during, and after a storm window.
$34/month after the trial · No card required for the trial · All 50 states in one base plan
4-minute full app walkthrough
THOR Storm Mapper — Complete App Walkthrough
A broad tour of the live map, storm research, and practical field tools.
Tracks and outbreaks
Inspect tornado tracks, damage corridors, and outbreak clustering on the same map.
History that travels
Use the web app on phone, tablet, or desktop for live and retrospective storm work.
HOW IT FITS THE WORK
A severe-weather workflow for the field
Load one field-ready map before the storm, use it through the chase day, then replay the setup when the day is over.
Your next move: Layer the radar. Track the structure. Replay the storm. Export the data.
Short field-view demo
Live Storm Tracking
Watch reported activity and live storm context come together on the map.
- 01
Filter current or historical storm activity by type, severity, location, and date.
- 02
Layer radar over reports and inspect storm tracks, corridors, and outbreak footprints.
- 03
Replay a storm period in Timeline to watch reported activity build across the map.
- 04
Save a report or export filtered data for your own analysis tools.
BUILT FOR THE FIELD
Keep reports, radar, and storm structure on one screen.
Every THOR tool stays in the field kit before the chase, during the storm, and in the replay afterward.
- NOAA/SPC hail, wind, and tornado maps with date, severity, ZIP code, county, and place filters for building the target area before the chase.
- Tracks, outbreaks, corridors, Heat Grid, Impact View, and Satellite View layers for reading storm structure beyond the individual report markers.
- Live and Past NEXRAD radar for following current cells and reviewing the earlier frames behind the setup.
- Timeline replay with NOW, Cumulative, and hail-swath views for reconstructing the storm after the chase day.
- Market Priority household, density, population, and Residential Score lenses for studying the exposure behind a storm footprint.
- Historical map slices and storm scans across the two-year interactive archive for comparing an earlier event or analogue day.
- Property Storm History reports for pulling an address-centered record when a location needs deeper storm context.
- My Reports for saved Property Storm History, Hail History, and Storm Reports, with sharing, browser print, and PDF export.
- Map-created and imported leads with pins, statuses, notes, calls, driving directions, follow-up dates, and individual lead CSV export.
- Lead Storm Monitor with 1–5 mile local coverage, a 25-mile Area Monitor, hourly checks, and recorded Storm Hits.
- Business Teams with separate member logins, owner controls, invitations, seats, shared lead context, and team hit visibility.
- 48H Alerts with your location, radius, event type, and severity settings for watching the next storm window.
- AI Mode for typed map requests, optional microphone input, fast searches, layer controls, GPS, filters, and map actions.
- Filtered state-level storm-event CSV and KML exports plus owner-managed organization lead import and export.
- One browser app for iOS, Android, tablets, and desktop PCs, so the field map stays available in the truck and at the desk.
6-minute guided Market Priority walkthrough
THOR Storm Mapper — Market Priority Walkthrough
See how Market Priority adds household and market context to storm research.
REPLAY THE CHASE DAY
Watch the storm rebuild frame by frame.
Use Timeline to follow reports, radar, tracks, outbreaks, and hail swaths through the storm period you loaded.
Timeline demonstration
Timeline Replay + Hail Swaths
Replay a storm as radar, reports, and hail swaths build across the map.
Export workflow demonstration
Move Storm Data and Team Leads
See how to export filtered storm data and work with team lead lists.
FOR THE NEXT CHASE
Carry the full storm map in your browser.
Open THOR on the road or at the desk and keep the storm record, radar, and replay tools in reach.
FREQUENT QUESTIONS
Questions from Storm chasers
Does THOR include radar replay?
Yes. THOR includes live and historical radar tools plus Timeline playback for the storm periods you load.
Where does THOR fit into a field weather setup?
Use THOR to keep reports, radar, tracks, outbreaks, replay, and hail swaths in one field-ready map.
Can storm chasers use THOR on mobile?
Yes. THOR is built for phone, tablet, and desktop browsers, with map, GPS, radar, and alert tools ready for the field.
THOR STORM MAPPER
Carry the full storm map in your browser.
Start a 14-day trial with no card required.