AtlasCast · Forecast
See the storm
before it hits.
Address-level storm forecasts, ten days out.
I · AtlasCast
Where others report storms after the fact, AtlasCast tells you which addresses a storm could reach next.
II · Ten storm types
Ten storms. One forecast.
Tornado
Rotating storms
Hail
Ice stones from the sky
Wind
Damaging gusts
Flash flood
Water that rises fast
Heavy rain
Intense downpours
Winter
Snow and blizzards
Ice
Freezing rain
Coastal surge
Sea water inland
Hurricane
Tropical cyclones
Wildfire
Fire danger
III · AtlasCast · Forecast
Ten days out,
graded A to F.
- 24 hours to 10 daysForecast windows
- Four times a dayRefreshed at 03, 09, 15 and 21 UTC
- Every addressA list of addresses inside the forecast footprint
IV · The live map
The forecast,
address by address.
Open the live map to see county grades and the addresses a storm could reach in the coming days. A forecast shows what could happen, not what will.
Open the live mapV · The address-level risk platform
282.9M U.S. addresses, graded for risk.
Three data products, one platform. Atlas United grades every U.S. address across 54 perils. AtlasCast forecasts 10 storm perils to each one, refreshed four times a day. TrueFixR storm data shows where storms were reported. The risk a property carries, the storm coming for it, and what it left behind.
- Atlas UnitedStatic peril grades · 54 perils · 282.9M addresses
- AtlasCast LiveSevere-weather forecast · 10 storm types · multi-day
54 perils · 10 live storm types · Multi-day forecast · 282.9M addresses
VI · How it works
Address in. Audit-ready score out.
Our deterministic peril model spans 282.9 million addresses across 54 perils, calibrated against two decades of observed severe events and a sixteen-day forward layer. Every score is timestamped, versioned, and accompanied by a reason code, patent claim 30, USPTO 64/070,786, built to survive regulatory examination.
Submit any U.S. address or parcel
Single call, batch CSV, or streaming. Address-point geocoding plus parcel-shape resolution where assessor records exist.
Cross-reference the hazard catalog
Fifty-four peril layers, climate normals, and historical events. Each value is timestamped, versioned, and cached to a parcel hash.
Return a graded peril profile
Letter grade, percentile rank, top contributing perils, and full methodology trace, all in one sub-200ms response.
VII · AtlasCast · Live forecasting
Atlas United grades the risk. AtlasCast forecasts the storm.
Static grades tell you what a property is. AtlasCast tells you what's coming: a live, per-address severe-weather forecast refreshed around the clock.
- 10 storm perils
- Tornado, hail, wind, flash flood, heavy rain, winter, ice, wildfire, hurricane and coastal surge, each with its own trained model.
- Per address
- Scored against 282.9M U.S. address points, with modeled likelihood, severity and a reason on every lead, plus county grades and property value in the path.
- 24h to 16d
- Forecast windows from tomorrow to two weeks out, refreshed four times a day.
- Per address
- Every forecast resolves to the individual address, not a county or a ZIP.
AtlasCast · Continental US · Forecast · refreshed 4×/day
VIII · Data products
Three data sets. One platform.
Grades tell you what a property is. AtlasCast tells you what's coming. TrueFixR storm data tells you what was reported. Use one, or all three through the same API.
Atlas peril grades
A deterministic A–F grade and 0–100 percentile for every address across 54 perils, with the model version and methodology trace on every response.
- 54 perils, one schema
- Flood, wind, fire, seismic, chronic climate
- Rate-filing-ready provenance
AtlasCast storm forecast
Trained machine-learning forecasts for 10 storm perils, scored against 282.9M U.S. address points and refreshed four times a day.
- Tornado, hail, wind, flash flood, heavy rain, winter, ice, wildfire, hurricane, coastal surge
- Modeled likelihood, severity and reason per address
- County grades, plus property value and people in the path
- 24-hour to multi-day forecast windows
TrueFixR storm data
Address-level storm-damage leads and event history, built for restoration crews, adjusters and emergency management offices that want the data itself.
- Damage leads by county or state, up to 365 days back
- Radar-reported hail history back to Nov 2019 (bulk)
- Peril breakdowns and flood-risk context
- one JSON API, 8 real datasets, one bearer token
IX · Capabilities
Fifty-four perils, one schema.
From acute hurricane risk to chronic heat-stress trajectories, every peril is normalized to a 0–100 percentile and an A–F grade with full methodology trace.
Hurricane
Coverage100% Atl. coast
Wildfire
WUI parcels44.8M
Flood (riverine)
SFHA layerLive
Storm surge
Surge zonesAll Cat 1–5
Tornado
EF tracks1950–today
Hail
Convective22-yr archive
Earthquake
Seismic hazard50-state
Heat stress
Chronic2050 horizon
X · Methodology
Eight model layers. One unified grade.
Atlas United is a purpose-built deterministic peril model. Each layer is independently calibrated against decades of observed events and folded into a single audit-ready grade per address, no black-box blending, no proprietary aggregator math.
Read the full methodology- AtmosAtmospheric & tropicalHurricane · Climatev2024.3
- SurfaceRiverine & coastal floodSFHA · Surgev2024.2
- SeismicEarthquake & tsunami50-state hazard2023 catalog
- WildfireBurn & WUI exposureWUI · Embersv2024.1
- ConvectiveHail · tornado · severe wind22-yr archive1950–today
- ChronicHeat · drought · sea-level2030 · 2050 · 2100Climate normals
- HistoricalValidated event catalog22 years · all perilsCalibration set
- ForecastForward probability layerMulti-day horizonSub-hour refresh
XI · Atlas grades
Our research peril model.
Atlas United's own peril grades are available by briefing. They are not for sale.
Request a private briefingXII · Atlas data feed · refresh 30s · methodology validated
/v1/risks/fast47msp95 24h
cache hit99.94%edge
throughput12,847 req/speak 60s
addresses indexed282,904,029graph nodes
convective cycle14ZT+18m fresh
forecast run12ZMulti-day fwd
radar scan14:30Z2-min cadence
convective outlookENHTX · OK · KS
tornado watches3active
wildfire incidents471.2M ac YTD
air-quality index152ABQ · USG
flood layerv2024.2refreshed 12d
seismic shakenightly02:14Z
perils modeled54all major classes
SFHA addresses5,389,072addrs · 2.45%
model SLA99.97%trailing 90d
XIII · Industries
Built for the balance sheet, not the demo reel.
Atlas United is engineered for the workflows that actually price and accept risk: actuarial, underwriting, accumulation management, and public-program design.
Personal & commercial lines
Underwrite admitted books with a rate-filable peril score and accumulation control at policy inception.
For carriersPrograms & specialty
Stand up new programs faster. Surplus, parametric, and niche peril MGAs use Atlas as their primary risk lens.
For MGAsTreaty & ILS
Portfolio rollups, PML/AAL benchmarking, and cession-quality validation for treaty pricing and ILS structuring.
For reinsurersFederal, state, local
Mitigation grant prioritization, hazard mapping, and BRIC/HMGP application support: auditable, citable, defensible.
For public sector
Academia & think tanks
Citable peril datasets for peer-reviewed climate, housing, and equity research with reproducible methods.
For researchXIV · Compare
Why teams move off legacy vendors.
Legacy stacks were built when peril modeling meant licensing one vendor's black box and trusting the output. Atlas United is a transparent deterministic model with per-field methodology trace, designed for the way underwriters and regulators actually work.
| Atlas United | Verisk / AIR | Cotality | First Street | |
|---|---|---|---|---|
| Transparent methodology | ✓ Per-field | Vendor docs | Vendor docs | ✓ |
| Cited provenance per score | ✓ Per-field | Vendor docs | Vendor docs | Partial |
| Sub-200 ms address API | ✓ p50 ~10 ms | Batch only | Available | ✓ |
| All 54 perils, one schema | ✓ | Fragmented | Fragmented | 5 perils |
| Source citation per response | ✓ Per-field | No | No | Methodology PDF |
| Per-call pricing, no seat fees | ✓ | License | License | Tiered |
A peril score that ships with the model version, the calibration vintage, and a cryptographic receipt. The methodology is the product.
XV · Data access
Pay for the addresses you use.
Get a free key on TrueFixR. Five cents per address, no contracts. Or ask your AI assistant to pull it for you.
Get a free key
XV · Enterprise briefing
Built for those who carry the risk.
Insurers, MGAs, emergency management and reinsurance. Talk to us about how AtlasCast fits your work.
Request a private briefingXVI · Get started
The peril stack your regulators already trust.
30-day evaluation with API keys, sample data for your book, and a deployment engineer assigned to your account.
XVII · Atlas United
Address-level peril intelligence for insurance, reinsurance, and the public sector. A purpose-built deterministic peril model.
The platform at a glance
01 Peril Scoring 54 hazards, 282.9M addresses
02 AtlasCast Real-time storm forecasting
Capabilities · Methodology · API · Pricing · Investors · Request access
© 2026 Atlas United. Address-level peril intelligence.
282.9M addresses · 54 perils · patent-pending USPTO 64/070,786
USPTO Application #64/070,786 · Filed May 20, 2026