This alert expired on 25 June 2026 at 01:00 UTC. It is kept here as a record.
No stronger detection stands among the 40 recorded within 20 km of this point since 3 April 2026 — 9 others scored the same. Another comparable one was recorded here earlier the same day. 5 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 24 at 7:13PM CDT until June 24 at 8:00PM CDT by NWS Chicago IL
An estimated 1,148,760 people live within 50 km of this point.
Nearby, since 3 April 2026
- June 24, 2026 · score 52 · 5.7 km
- June 25, 2026 · score 52 · 10.5 km
- July 3, 2026 · score 48 · 11.9 km
How we know
Confirmed by 11 independent sources, including NOAA.
Our own score for this event is 52 out of 100, at 88 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 52 / 100 |
| Our confidence | 88% |
| Coordinates | 42.1791, -88.6378 |
| Nearest City | Huntley (17 km) |
| Population Exposed | 1.1M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-25T00:13:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.6097a3633787025b26ddcabf1adc79c8 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Cook, IL; DuPage, IL; Will, IL; La Salle, IL; Dodge, WI; Washington, WI and 4 more areas |
| Headline | Severe Thunderstorm Warning issued June 24 at 7:13PM CDT until June 24 at 8:00PM CDT by NWS Chicago IL |
| Expires | 2026-06-24T20:00:00-05:00 |
| SenderName | NWS Chicago IL |
| HasExactCoords | true |
| MergedCount | 8 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.6097a3633787025b26ddcabf1adc79c87222a9e6.001.1","noaa_urn:oid:2.49.0.1.840.0.1623a999378d573f71c2924453f229aacba04d32.002.1","noaa_urn:oid:2.49.0.1.840.0.dbea807a02216c6b81a78ea2a2deb2306905df85.001.1","noaa_urn:oid:2.49.0.1.840.0.519214d23829ce94de897ff02ded56ba7f7d7495.001.1","noaa_urn:oid:2.49.0.1.840.0.1738daaa8a6d4a1e1539d08c84103e5d5c42a90a.001.1","noaa_urn:oid:2.49.0.1.840.0.3604873dfa2b2ac3cfd6082987fb131c72c01e57.001.1","noaa_urn:oid:2.49.0.1.840.0.97c0e682a2df80b7332df81931779bef3352de99.002.1","noaa_urn:oid:2.49.0.1.840.0.4021f2ea82f77d6903d90ba24323798a5c44843a.001.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1.5 |
| Iem Unit | Inch |
| Iem City | 2 E Huntley |
| Iem County | McHenry |
| Iem State | IL |
| Iem Wfo | LOT |
| Iem Remark | Public report of 1.5 inch hail near Huntly. Relayed via mping. |
| MergedSources | [{"id":"iem_H_42.760_-88.910_1782333960000","source":"iem","severity":"low","severityValue":25,"timestamp":1782333960000,"latitude":42.76,"longitude":-88.91},{"id":"iem_H_42.160_-88.300_1782341640000","source":"iem","severity":"low","severityValue":25,"timestamp":1782341640000,"latitude":42.16,"longitude":-88.3},{"id":"iem_H_42.150_-89.230_1782340920000","source":"iem","severity":"low","severityValue":25,"timestamp":1782340920000,"latitude":42.15,"longitude":-89.23},{"id":"iem_D_42.000_-88.190_1782344160000","source":"iem","severity":"low","severityValue":25,"timestamp":1782344160000,"latitude":42,"longitude":-88.19},{"id":"iem_D_42.000_-88.150_1782344280000","source":"iem","severity":"low","severityValue":25,"timestamp":1782344280000,"latitude":42,"longitude":-88.15},{"id":"iem_G_42.110_-88.280_1782342840000","source":"iem","severity":"low","severityValue":25,"timestamp":1782342840000,"latitude":42.11,"longitude":-88.28},{"id":"iem_H_42.160_-88.340_1782341820000","source":"iem","severity":"low","severityValue":25,"timestamp":1782341820000,"latitude":42.16,"longitude":-88.34},{"id":"iem_H_42.150_-88.270_1782341940000","source":"iem","severity":"low","severityValue":25,"timestamp":1782341940000,"latitude":42.15,"longitude":-88.27},{"id":"iem_E_42.040_-88.290_1782344880000","source":"iem","severity":"low","severityValue":25,"timestamp":1782344880000,"latitude":42.04,"longitude":-88.29},{"id":"iem_H_42.180_-88.390_1782340860000","source":"iem","severity":"low","severityValue":25,"timestamp":1782340860000,"latitude":42.18,"longitude":-88.39}] |
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
Series begins 10 February 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
Want to know when something happens near Huntley?
Calamity.live data shows a weather event with CalamityScore 52/100, near Huntley (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 187 scientific monitoring sources.