Hail map for Derby, KS — July 21, 2025
NOAA radar detected hail up to 1.00″ — quarter size — within 5 miles of Derby on July 21, 2025.
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Every address in Kansas at once — three years of NOAA hail swaths drawn on a map you can zoom, filter and actually work.
$79/moall of Kansas, not one storm day
- The July 21, 2025 swath — and every other storm since 2023 across Kansas
- GPS door-knocking — pins, photos and who you have already hit
- Jobs, contacts, estimates and invoices included
- An alert the next time Kansas gets hit
HailTrace charges $229 for this one day, once. $79 here is all of Kansas, every day.
- Max hail size
- 1.00″
- quarter
- Impact rating
- 3/10
- from stone size
- Size bands over the city
- 1
- distinct radar bands
- Measured on the ground
- 1.00″
- 4.8 mi away · Public
Sizes come from NOAA radar, which runs about ±0.25″ against ground truth. It is canvass-targeting quality, not claim evidence.
Did hail hit your address?
This page covers Derby as a whole. Check your own address to see every storm on record for your roof — the date and the stone size for each one — and we'll email you the full report to keep.
Check my addressFree, and no account needed to look it up. If hail did hit, you'll have the date and the stone size in writing — which is the first thing an adjuster asks for.
Other towns hit on July 21, 2025
Every Kansas city hit on July 21, 2025 →What people on the ground measured in Derby, KS on July 21, 2025
One report filed with the National Weather Service. These are measured stones, not radar estimates, so they are the closest thing to proof that hail actually reached the ground.
- 1.00″ quarter size PublicHaysville, KS · 4.8 mi away11:00 PM CDTSedgwick County
Reports come from the National Weather Service Local Storm Report feed, ingested every 15 minutes. A report records where the observer was, not the full extent of the swath — treat it as evidence about the storm, not about any one roof.
Shopping for a hail app to work Derby, KS?
This page is one storm. If you are deciding which tool to work Derby, KS with all season, these compare the ones roofers actually buy — with every price taken from the vendor's own site and linked.
- Best hail tracking apps, comparedHailMate, HailTrace, Hail Recon, HailStrike and RadarScope — every published price sourced and linked, and who each one is genuinely right for.
- HailMate vs HailTraceStreet-level NOAA swaths on a map your crew can knock, with the CRM already inside — instead of quote-only meteorologist maps billed on top of one.
- Hail map apps for roofers (and the Hail Recon alternative)Every storm on one map instead of loading dates one at a time — plus the canvassing and the whole claim, monthly, for what one state costs them a year.
- Best canvassing apps, comparedHailMate, SalesRabbit, SPOTIO, Knockio, RoofLink and Badger Maps — every published price sourced and linked, and two of them publish none.
Derby hail on July 21, 2025
NOAA radar estimated stones up to 1.00 inches — quarter size — within about 5 miles of Derby that day, across 1 distinct size band. Sizes vary street to street inside a single swath.