Reported by IEM 29 days ago.
No stronger detection stands among the 120 recorded within 20 km of this point since 16 March 2026 — one other scored the same. The last comparable one was on 30 July 2026. 95 more were recorded here in the fortnight before it.
What the source measured
IEM reported: R report (1.23 Inch) near 1 NW Lexington, Middlesex Co., MA. Source: NWS BOX.
An estimated 4,914,449 people live within 50 km of this point.
Nearby, since 16 March 2026
- July 30, 2026 · score 52 · 16.0 km
How we know
Confirmed by 2 independent sources, including IEM.
Our own score for this event is 52 out of 100, at 67 % 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 | 67% |
| Coordinates | 42.4500, -71.2400 |
| Nearest City | Lexington (2 km) |
| Population Exposed | 4.9M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-03T13:49:00.000Z |
| Source | https://mesonet.agron.iastate.edu/lsr/ |
Score Breakdown
Technical Details
| TypeSummary | R |
| Magnitude | 1.23 |
| Unit | Inch |
| City | 1 NW Lexington |
| County | Middlesex |
| State | MA |
| Wfo | BOX |
| Google News RssFeed | weather |
| Google News SourceName | NBC Boston |
| MergedSources | [{"id":"gnews_weather_496041_257","source":"google_news","severity":"medium","severityValue":40,"timestamp":1785749407000,"latitude":42.36,"longitude":-71.06}] |
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 Lexington?
Calamity.live data shows a weather event with CalamityScore 52/100, near Lexington (United States), based on data from iem. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.