This alert expired on 25 June 2026 at 02:00 UTC. It is kept here as a record.
It is the 2nd strongest of the 92 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 18 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 24 at 7:53PM CDT until June 24 at 9:00PM CDT by NWS Chicago IL
An estimated 7,578,623 people live within 50 km of this point.
Nearby, since 16 March 2026
- August 10, 2026 · score 52 · 2.4 km
- July 3, 2026 · score 46 · 7.2 km
- July 3, 2026 · score 52 · 8.9 km
How we know
Confirmed by 14 independent sources, including NOAA.
Our own score for this event is 52 out of 100, at 89 % 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 | 89% |
| Coordinates | 42.0948, -88.0908 |
| Nearest City | Palatine (5 km) |
| Population Exposed | 7.6M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-25T00:53:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.aa2bff998623860715fbbd402081d008 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Lake, IN; Grundy, IL; La Salle, IL and 3 more areas |
| Headline | Severe Thunderstorm Warning issued June 24 at 7:53PM CDT until June 24 at 9:00PM CDT by NWS Chicago IL |
| Expires | 2026-06-24T21:00:00-05:00 |
| SenderName | NWS Chicago IL |
| HasExactCoords | true |
| MergedCount | 6 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.aa2bff998623860715fbbd402081d008c7f4a8cb.001.1","noaa_urn:oid:2.49.0.1.840.0.8109f0985d171ecb7756fa695c436d5ab9b78173.001.1","noaa_urn:oid:2.49.0.1.840.0.b25e8247fe82d2b5df6e0736819d6d09318ad5ac.001.1","noaa_urn:oid:2.49.0.1.840.0.eb115d2d94386a686eb64d5cca6d34247b8b7d79.001.1","noaa_urn:oid:2.49.0.1.840.0.0cbd2168abb0141f511e89c688d0461d00382b40.001.1","noaa_urn:oid:2.49.0.1.840.0.76a83aeb0e213667851eacda82a258a1c1dd0175.001.1"] |
| Iem TypeSummary | G |
| Iem Magnitude | 58 |
| Iem Unit | MPH |
| Iem City | 1 S Hanover Park |
| Iem County | DuPage |
| Iem State | IL |
| Iem Wfo | LOT |
| Iem Remark | Private weather station KILHANOVI2 measured a wind gust to 58 mph. |
| MergedSources | [{"id":"iem_E_42.000_-88.140_1782345000000","source":"iem","severity":"low","severityValue":25,"timestamp":1782345000000,"latitude":42,"longitude":-88.14},{"id":"iem_H_42.160_-88.300_1782341640000","source":"iem","severity":"low","severityValue":25,"timestamp":1782341640000,"latitude":42.16,"longitude":-88.3},{"id":"iem_D_41.980_-88.140_1782344400000","source":"iem","severity":"low","severityValue":25,"timestamp":1782344400000,"latitude":41.98,"longitude":-88.14},{"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_41.970_-88.850_1782343560000","source":"iem","severity":"low","severityValue":25,"timestamp":1782343560000,"latitude":41.97,"longitude":-88.85},{"id":"iem_D_42.100_-88.280_1782342780000","source":"iem","severity":"low","severityValue":25,"timestamp":1782342780000,"latitude":42.1,"longitude":-88.28},{"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},{"id":"iem_G_41.980_-88.150_1782344340000","source":"iem","severity":"low","severityValue":25,"timestamp":1782344340000,"latitude":41.98,"longitude":-88.15}] |
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 Palatine?
Calamity.live data shows a weather event with CalamityScore 52/100, near Palatine (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.