01Urban rainfall intelligence
We read the city’s rain more closely and bring flood response forward.
Field rainfall observation · flood risk analysis · monitoring and alerts. One platform.
Public & disaster safety
Public & disaster safety
Public & disaster safety
Public & disaster safety
Public & disaster safety
Public & disaster safety
Public & disaster safety
Public & disaster safety
Public & disaster safety
Public & disaster safety
Energy & infrastructure
Energy & infrastructure
Energy & infrastructure
Energy & infrastructure
Energy & infrastructure
Energy & infrastructure
Research
International
International
International
International
International
International
InternationalWorking with public agencies, energy, research and global partners
02The problem
Local downpours can vary sharply within a few kilometers.
Rain between stations is an estimate. Alley- and underpass-level differences vanish in averages.
Several rounds of checking and calling between risk and response.
Without clear roles—who, where, what—action comes late.
03City scale
01 / 04 · 2D · Side
02 / 04 · 3D · Today
03 / 04 · 3D · WOOZZA
04 / 04 · 2D · Top
04WOOZZA Platform
Observe → quality control → risk analysis → alert → response. Tap a card to see each step.
Smart rain gauges measure rain and wind every minute.
Wind-effect correction and gap/outlier checks produce clean data.
Terrain and drainage data, physics models and deep learning estimate flood risk.
Risk levels appear on the monitoring screen and alerts go to staff and residents.
Closures, evacuation support and facility checks follow; outcomes feed back into the models.
Rainfall, wind direction and wind speed readings
Raw observations per site
Raw observations per site
Corrected, validated data with quality status
Clean rainfall + terrain and drainage data
Expected flood depth and risk level by zone
Risk level by zone
Monitoring screen display and alerts to staff and residents
Alerts and on-site conditions
Closures, evacuation support and inspections, with records
Flood Watch
05Products
Start where you need. Extend on the same data.
Rain, wind direction and speed every minute · solar · wireless
Learn more →Neighborhood-level 1-minute rain · quality flags · REST API
Learn more →Field rain + terrain and drainage → flood risk by zone
Learn more →See risk, send alerts, track evacuation—one screen
Learn more →
01 · Device
Rain, wind direction and speed every minute · solar · wireless
Learn more →Field Rainfall Data API
curl "$WOOZZA_API/v1/observations/latest?station=WZ-RG-0002" \
-H "Authorization: Bearer $WOOZZA_API_KEY"{
"station_id": "WZ-RG-0002",
"observed_at": "2026-10-17T01:25:00+09:00",
"rain_10min_mm": 14.4,
"rain_1h_mm": 82.5,
"quality": { "status": "corrected" },
"risk_level": 4
}06Observation network
Pilots in Gwanak-gu, Seoul and Brooklyn, New York. More cities next.
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Drag to rotate. Select a point, or choose a region from the list below.
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Seoul, South Korea
We have been running an urban flood-response pilot here since 2024. We placed observation points at the neighborhood level and connected a 6 m-grid flood scenario with Flood Watch monitoring.
A region where we install field equipment and run a pilot.
New York State, USA
We have been running a deep-learning-based flood-prediction display pilot here since 2025, operating locally from device installation through real-time monitoring to flood alerts.
A region where we install field equipment and run a pilot.
USA
Preparing to expand as a pilot site on the US West Coast.
A region preparing for a pilot under our global expansion roadmap.
Middle East
Preparing to expand as a pilot site in the Middle East.
A region preparing for a pilot under our global expansion roadmap.
Vietnam
Preparing to expand as a pilot site in Southeast Asia.
A region preparing for a pilot under our global expansion roadmap.
Legend
Arcs and light trails illustrate an expansion vision. They do not represent real communication links or data connections.
07Applications
Same data, a different decision on every site.
