SwathIQ / How it works
SwathIQ turns NOAA MRMS weather radar -- the same data the National Weather Service uses -- into an address-level map of exactly where hail fell and how big it was. Free, no login. Here is how a storm becomes a booked roof:
Most hail tools show you a colored map and hide where the numbers came from. SwathIQ does the opposite: every layer is a named, public NOAA dataset, and we tell you exactly what it can -- and cannot -- prove.
The Multi-Radar Multi-Sensor system estimates Maximum Estimated Size of Hail from the national radar network on a ~1 km grid. That is the colored swath you see.
Ground-truth reports from the Storm Prediction Center -- the dots on the map -- show where hail was actually observed, and how big.
New storms are mapped within hours of the cell; the archive reaches back to 2010 so you can pull hail history for any address.
Straight talk: radar-estimated hail size is an indicator, not a guarantee of damage. A swath tells you where to look and which doors to knock first -- the roof inspection confirms it. We will never dress radar data up as a damage report.
Radar-estimated hail size is a guide to where damage is likely. Bigger stones, more functional damage -- but always confirm on the roof.
More detail: hail size and roof damage ->
Most hail tools paywall the map, hide where their data comes from, or stop at a colored blob. SwathIQ is built to put roofers on the right doors -- fast, free, and backed by a real call center.
The map, address lookup, today's report, and alerts are free with no login. Most tools gate all of this behind a subscription.
Real radar-measured hail size, sourced from NOAA and stated on every page. No mystery scores, no undisclosed data chain.
We resolve the swath to actual street addresses your crew can knock -- or we can dial -- not just a heat map to stare at.
Click any point and pull every hail day on record -- chase aged claims and prove a date of loss.
Drop the live hail map on your own roofing site with one snippet -- a lead magnet that runs on your brand.
The one thing no other hail tool has: Call Center Doctors dials the storm and books your inspections. The map plus the floor.
Yes. The hail map, hail-history-by-address lookup, today's report, and email alerts are free with no login. The paid tiers are the door-knock data lists and the Call Center Doctors dialing service.
It is NOAA MRMS radar-estimated hail size on a roughly 1 km grid, plus NOAA SPC ground reports. Radar-indicated size shows you where to look first -- it is not a guarantee of roof damage. The on-site inspection confirms it.
Within hours of the cell passing -- not days later -- so you can work the storm the same day.
To 2010. Click any point or type any address to pull every hail day and size on record -- useful for confirming a date of loss or working an aged claim.
The continental U.S., wherever NOAA radar reaches. There are dedicated pages for the top hail states (Texas, Oklahoma, Kansas, Colorado, and more).
No. The Call Center Doctors floor dials homeowners by phone and books inspections -- we never knock doors. You and your crew run the inspections and close the roofs.
Call Center Doctors is the US-based parent of SwathIQ. It dials the homeowners in your storm on a predictive dialer and books roof inspections onto your calendar. You buy booked appointments in packs -- see the storm appointment packs for current rates.
Yes -- there is a free embeddable widget. Drop one snippet on your roofing site and the live map becomes a lead magnet under your brand.
Open the free hail map now, or let Call Center Doctors dial the storm and book your roofs.