Official storm reports
Verified government source
Available official storm reports help users research recent and historical severe-weather activity. Source records can be updated as new information becomes available.
Visit source documentationTHOR Methodology Center
Last reviewed: October 4, 2026 Editorial owner: THOR Storm Mapper
Storm research backed by trusted public data.
THOR brings verified government sources and public records into one workspace for smarter storm research. The map helps you investigate storm activity, organize next steps, and keep the evidence in perspective.
Trusted sources
Public data, used responsibly.
THOR brings together complementary information from established public sources so teams can research storm activity with clearer context. Open each link below for the publisher’s documentation.
Weather mapping context
Verified government source
Available weather data adds context around storm activity on the map. It supports research and planning; it does not confirm property damage or insurance coverage.
Visit source documentationStorm replay context
Public weather archive
Available weather imagery helps users review storm timing, movement, and surrounding activity as part of their research.
Visit source documentationMarket research context
Verified public data source
Available public geographic context helps teams compare storm-affected research areas and plan where to focus next.
Visit source documentationResearch with context
A storm map starts the research. It does not end it.
01
Review storm activity
Use available public storm information to research what happened in an area and when it happened.
02
See the wider picture
Use the map and replay tools to understand the timing, movement, and surrounding context of a storm.
03
Plan the next move
Use THOR to organize research, prioritize follow-up, and prepare for appropriate field review and documentation.
Market Priority methodology
Storm activity with practical market context.
Market Priority pairs available public geographic context with storm activity to help teams compare areas, plan their time, and focus their research.
Storm information remains tied to its underlying source.
Public geographic context supports area research.
Available information can vary by place and time period.
The result is a prioritization aid, not a damage model.
Methodology FAQ
Questions about the data behind the map.
Where does THOR get its storm data?
THOR brings together available information from verified government sources, public weather records, and public geographic data. The exact information shown depends on the place, time period, and available source coverage.
Does a hail swath prove property damage?
A hail swath helps a team investigate where a hail-producing storm moved. Use it with the property review and documentation your workflow calls for.
Why can a reported event and radar layer tell different parts of the story?
Each source has its own timing, coverage, and purpose. THOR keeps available information in context so users can research a storm without treating any one map signal as a complete answer.
What does Market Priority measure?
Market Priority brings available public geographic context alongside storm activity to help teams compare research areas and plan where to focus next.
Can source coverage or source reports change?
Yes. Government reports and public records can be updated, and coverage can vary by event, location, and time period. THOR presents available information for research while preserving the need for field review and appropriate documentation.
Continue the research
Put the methodology into a practical workflow.
Check an Address
Run a public bounded hail-signal check, then start a trial for the full property research workflow.
Open workflowHail Swath Maps for Roofers
See how THOR supports storm-area research, Timeline Replay, and practical field workflows.
Open workflowStorm Leads & Reinspection
Use available storm evidence to organize lead research, future monitoring, and paid history screening.
Open workflowSource-aware storm research
Start a free THOR trial to work the full storm picture.
Bring storm research, Timeline Replay, Market Priority, leads, and reports into one browser-based workspace.