Mosaic Alerts
Hail alerts built on ground truth — a hail warning system that fires up to 30 minutes ahead, for the people who have to move something.
Alerts watches your sites continuously and fires when hail at or above the threshold you set for a site is heading for it, with enough warning to act: stow the trackers, put the car away, get the crew off the roof. It is not a briefing about the weather. It is an instruction to change course.
LEAD TIME: UP TO 30 MIN · PER SITE, PER FLEET
Mosaic AlertsMosaic
Powered by Hailios Fusion AI · Patent pending
Mosaic Alerts · hail alert
Specimen
Utility-scale solar · Front Range, CO
Armed 22:18
Stow the trackers
Alert armed · above your threshold
RADAR INFERS. WE MEASURE. THAT DOESN’T STOP BEING TRUE JUST BECAUSE THE STORM HASN’T ARRIVED YET.
Most hail warning systems are trained on radar and on storm reports. Both are inference: a beam sweeping thousands of feet above the roofline, and a human account filed by whoever happened to be looking. When a warning is checked afterward, it is checked against those same two sources — inference validated against inference, a loop that never touches the ground.
Hailios Fusion AI closes that loop. It is trained on years of Tessera measurements of what actually landed, and every alert is checked against measured impact wherever a Tessera stands. Where it was right, that is confirmed against a physical record rather than an echo. Where it was wrong, the error is itself a measurement, which means it can be corrected instead of argued about.
The practical consequence is the alert threshold. Every warning system fires at some line, and that line is normally drawn on a proxy: reflectivity, a modeled maximum stone size, a product nobody has checked against damage at your address. You choose ours, in hail classes from H1 to H11, and what each class means is trained on impact measured on the ground. It sharpens as the record grows. That is the whole difference, and it is the only forward claim on this page.
It starts from the same weather everyone sees. What it’s checked against is what’s different.
Impact count, impact energy, duration — timestamped by tiles standing in the weather at real sites.
Each class is trained against measured impact, not against another model’s opinion of it.
Hailios Fusion AI does not go home. It watches every site you have, through the night, through the season, through the years when nothing happens. Where a Tessera stands, the tile reports its own state and everything that hits it. That unbroken record, years of it, is what the warnings are trained on, which is why the watch and the alert are one product rather than two.
Severe weather alerts for business have to survive contact with a shift roster. A public watch box is written for a county and read by nobody in particular; an operational alert is written for one address and addressed to the person on duty there. That is the difference between a weather feed and a system somebody can be held to.
THE SYSTEM THAT WARNS YOU IS THE ONE THAT PROVES IT AFTERWARD. NO SECOND VENDOR, NO SECOND ARGUMENT.
Nobody buys a warning. They buy the minutes in front of the storm and whatever fits inside it. So the useful question is never how clever the forecast is — it is what this person does next, and whether they had time to do it.
Solar O&M
MINUTESStow is free protection that costs generation, so the decision needs a line someone will defend at the next review. Tie it to measured impact across the fleet rather than to a radar cell overhead.
Facilities & commercial property
MINUTESPull the maintenance crew off the roof and the scaffold. Get pool vehicles and the visitor lot under structure. Move what is staged outside, and tell the site team when the window opens and when it shuts.
Fleets & dealerships
MINUTESKeep delivery and service vehicles in the depot until the all-clear, stop moving cars onto the open lot, and get the most exposed under the canopy. For a packed staging yard, the value comes afterward: Mosaic Reports says which lots took it.
Contractors, restoration & PDR
AFTER THE STORMCrews, adjusters, technicians, lifts and dry storage are booked days out, so the value is knowing first which markets actually took impact, trained on the ground, not inferred. The alert says a cell is live; the record says where to send the trucks.
Residential & multi-family
MINUTESOne notice, per property, in time for people to move their own vehicles under cover. Property managers do not need a meteorology briefing; they need a message they can forward.
Running a solar plant? See how the stow call works →
Cars in the open, trackers at working tilt, a crew on a roof. The cost of a miss is the full cost of the storm, and it lands on the operator who was told nothing was coming.
Stowing a portfolio is generation sold to nobody. Holding a fleet in the depot is a morning of deliveries. Do it for storms that go around you and the real cost arrives later: the next alert gets read, shrugged at, and ignored.
Both errors cost money, and the second compounds: an alert nobody trusts is an alert nobody reads. Any vendor claiming to have removed that trade-off has quietly chosen a side for you and not said which.
So we say it plainly. Where the threshold sits is a tuning decision, and we make it with you — against what your assets are worth, what your defense costs, and how much of it you can actually execute in the window you get. A household putting one car in the garage needs a different line from a plant that gives up generation every time it stows.
Ground truth is what makes tuning possible at all. Without a physical record of what landed, moving a threshold is guesswork dressed up as configuration. With years of measured impact behind Hailios Fusion AI, every storm is another check on whether your line is in the right place, and the conversation about moving it starts from evidence rather than from somebody’s memory of last summer.
WE’D RATHER SELL YOU A THRESHOLD YOU BELIEVE THAN AN ACCURACY FIGURE YOU DON’T.
Alerts is a subscription, taken per site or across a fleet — the shape scales with how many places you have to protect, not with how many storms turn up. Coverage, thresholds and recipients are set at the same time.
| Lead time | Up to 30 minutes, tightening as the cell resolves: a first notice, then updates as impact nears. |
|---|---|
| What arms it | A threshold per site, set in hail classes from H1 to H11: expressed in the impact your assets care about, not in a proxy for it. |
| Delivery | Email and webhook, into the systems your team already watches. If operations run on a control-room screen or a ticket queue, the alert lands there. |
| Recipients | Named per site, with escalation. The person who can act on site is not always the person who owns the account. |
| All-clear | Sent explicitly. A watch that never closes is a watch nobody stands down from, and a crew needs permission to go back to work. |
| Afterward | What landed becomes the event evidence in Mosaic Reports, measured where a Tessera stands and ground-trained everywhere else, and another check on your threshold. |
| Coverage | Any address in the US, ground-trained by Hailios Fusion AI and measured where a Tessera stands. Outside the US, any site with a Tessera on it, in 150+ countries. |
EVERY DEPLOYMENT IS A DIFFERENT NUMBER OF SITES. TALK TO US AND WE’LL DO THE ARITHMETIC OUT LOUD.
Warnings and Live Updates tells you before the hail arrives and when it’s over. Event Monitoring tells you it happened and sends the evidence. Both run per property for twelve months; take them together and the warning, the all-clear and the evidence afterward all come from the same place.
One property, 12 months
Any US address · any Tessera site in 150+ countries
Is hail coming, and when is it over? An advance warning with the expected hail class and arrival time, the live situation, and the all-clear.
One property, 12 months
Any US address · any Tessera site in 150+ countries
Will I know, and do I get the evidence automatically? Event detection, notifications by email and webhook at the hail class you choose, from H1 to H11, and every Post-Event Report and Hail Check for the property. More in Mosaic Reports.
A Tessera on site comes with Event Monitoring for its property.
Alerts is the question asked in the minutes ahead. Hailios Fusion AI, trained on years of Tessera measurements, answers the other two.
Mosaic Risk
Hail risk drawn from hail that fell, in the US, Canada, Europe, Australia and Japan. How often it’s likely to hit a site, before you build, buy or price it.
Explore Risk →
Mosaic Reports
This address, this date, this degree. Once the storm has been and gone, the record becomes evidence an adjuster can file and a site team can act on.
Explore Reports →
Tessera
A tile that sits outside and records what hits it. Roof, pole or solar tracker — the ground truth every warning here is checked against.
See Tessera →
Powered by Hailios Fusion AI
MEASURED WHERE WE ARE, GROUND-TRAINED WHERE WE AREN’T — AND LABELED ACCORDINGLY. ALL THREE ANSWERS AT ONCE: THE PLATFORM OVERVIEW.
Tell us how many sites or properties you look after and what you can do when a warning arrives, and we’ll help you choose the hail class to warn at.
WE’D LOVE TO HEAR FROM YOU. A REAL PERSON WILL REPLY, USUALLY THE SAME DAY.
Talk to us about alerts