One crisis. Many faces.
Climate change isn't a single event you can plan for. The same warming atmosphere that drives a flash flood this month deepens a drought the next — and makes the weather in between harder to predict every year. Too much water. Too little water. At the wrong time, in the wrong place.
Too little water
Drought & water scarcity
The balance we've lost.
Too much water
Floods & flash floods
Climate change doesn't reach us as temperature. It reaches us as water.
When we talk about climate change, we usually talk about temperature. But temperature floods nobody's cellar, dries no field and empties no reservoir. Warming reaches people, towns and infrastructure almost entirely through water — as floods, drought, storms and failing water quality.
A warmer atmosphere does both at once: it drops a heavier downpour, then dries the land faster between two of them — so what changes isn't how much water falls, but how unevenly it arrives. And these are the hardest events to see: they form on an unnamed stream with no gauge, under a cell that fits between the two nearest measuring points. That's why Meratch exists — to measure where the data doesn't yet.

Jozef Pecho
Climate/NWP Model & Data Analyst

Floods
Flash floods and overflow arrive faster and hit harder than legacy warning systems can detect.

Droughts
Soil dries out and water runs short — threatening crops, supply and raising wildfire risk.

Storms
Rainfall, storms and heat swing to extremes the historical record no longer predicts.

Water Quality
Sediment and microbes, drought, heat strips out oxygen. And it shows up hours later.
These aren't four separate problems. They're symptoms of one crisis — and they demand one response.
One connected platform for climate adaptation.
Three earth sciences — hydrology, meteorology and climatology — on a single hyperlocal platform. Meratch owns the whole chain, from sensor in the ground to AI-driven forecast on your screen.
Flash Flood Early Warning
Floodar
Floodar is a flash flood early warning system that gives municipalities, river basin authorities, and critical infrastructure operators the time they need to act before water rises.
Storm Nowcasting
Atmoseer
Meratch's extreme weather forecasting engine delivers hyperlocal forecasts of severe weather phenomena from the next few hours to several days ahead, with a special focus on the nowcasting window — the critical time frame where traditional forecasts fall short.
Drought Early Warning
Drought
Flash droughts strike fast — developing in weeks instead of months as heatwaves and rainfall deficits rapidly deplete soil moisture.
Water Quality Monitoring
AquaSensio
AquaSensio is an autonomous water quality monitoring system designed for continuous, in-situ measurement in wells, boreholes, rivers, and reservoirs — even in remote locations with minimal maintenance.
The blind spot.
Regional forecasts miss the street, the field and the catchment where decisions are made.
National forecasts and warnings are good — they're just not close enough. It isn't a question of quality, but of scale. The weather that matters happens at a single point: this substation, this plant intake, this stretch of road, this field. But a storm cell is only a few kilometres wide and lasts tens of minutes, while the public sensor network measures every few tens of kilometres — and a network can't resolve anything smaller than the spacing between its points. An area-wide forecast can't tell apart two places three kilometres apart — even when one is hit and the other stays clear.
And the gap is widening. A warming climate doesn't only make extremes stronger — it also changes how they are distributed in space. As dew points rise, a growing share of heavy rainfall is taking on a convective rather than stratiform character: short, violent, and concentrated in cells just a few kilometres across, instead of spread evenly across a region. Sub-hourly downpours are intensifying the fastest of all. In practice, this means the events causing the most damage are becoming exactly the events a coarse regional grid cannot see.

Events a coarse regional grid cannot see
Which is why area-wide warnings are losing their audience. A warning is issued for a whole district; the storm hits one village inside it. For everyone else it registers as another false alarm. In our survey among Slovak mayors, most said they no longer rely on district-level warnings for their own decisions — not because the warnings are wrong, but because they are not specific enough to be actionable. Every false positive costs a little credibility, until the one alert that really matters is the one nobody moves on.
Weather made to measure
Meratch closes the gap. Instead of country-wide weather, it gives you the weather where you actually operate. Smart IoT sensors monitor rainfall, water level, wind and related parameters directly on site; data is evaluated in real time, and when preset thresholds are crossed the system automatically alerts the people responsible.
Because the trigger is your own measurement — not an average over a district — an alert means something is happening to you. That is what makes it worth acting on. Meratch doesn't replace national warnings; it adds the hyperlocal layer that ordinary forecasts routinely miss, and turns "somewhere in the region, sometime today" into "here, now, this much."
End-to-end,
one company.

Sensors
LoRa, NB-IoT, 2G, and satellite connectivity options ensure data transfer even during the worst floods, when infrastructure is failing.

Real-time data
High-quality electronics and advanced post-processing ensure reliable flood warnings. We flag suspicious data and adjust system predictions.

Edge & cloud computing
Intuitive online dashboard and mobile app to view and understand sensor data is part of the Floodar package at no additional cost.

Hyperlocal forecast
Durable sensors withstand harsh flood conditions. Plug & play design with installation hardware for easy setup.

Bulletproof connectivity
99.8% uptime

Seal of Excellence

AI models
Behind every alert is a real scientist.
Meratch isn't a black box. Our hydrological, meteorological and climatological models are built and validated by working scientists — the same expertise national agencies rely on.
Real deployments. Real institutions.
Monitoring groundwater levels is our obligation at CHMI, and getting it right matters – the data feeds directly into national drought monitoring, hydrological balance assessments, and publicly available reports and maps about the state of groundwater across the Czech Republic.

The deployment of these smart sensors enables us to monitor water levels, soil conditions and atmospheric factors in real time, providing crucial data for flood prediction and prevention. Early warning is crucial for emergency services to act quickly and manage the risks.
















