Reported by IEM 60 days ago.
No stronger detection stands among the 100 recorded within 20 km of this point since 16 March 2026 — 11 others scored the same. Another comparable one was recorded here earlier the same day. 8 more were recorded here in the fortnight before it.
What the source measured
IEM reported: AWOS station KASH Nashua Boire Fld.
An estimated 1,332,460 people live within 50 km of this point.
Nearby, since 16 March 2026
- June 26, 2026 · score 52 · 8.5 km
- July 16, 2026 · score 52 · 12.0 km
- July 16, 2026 · score 52 · 15.2 km
How we know
Confirmed by 2 independent sources, including IEM.
Our own score for this event is 52 out of 100, at 66 % 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 | 66% |
| Coordinates | 42.7800, -71.5200 |
| Nearest City | Nashua (4 km) |
| Population Exposed | 1.3M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-02T17:56:00.000Z |
| Source | https://mesonet.agron.iastate.edu/lsr/ |
Score Breakdown
Technical Details
| TypeSummary | I |
| Magnitude | 101 |
| Unit | F |
| City | 3 NNW Nashua |
| County | Hillsborough |
| State | NH |
| Wfo | GYX |
| Remark | AWOS station KASH Nashua Boire Fld. |
| Google News RssFeed | weather |
| Google News SourceName | Boston 25 News |
| MergedSources | [{"id":"gnews_weather_495278_197","source":"google_news","severity":"medium","severityValue":40,"timestamp":1783003000000,"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 Nashua?
Calamity.live data shows a weather event with CalamityScore 52/100, near Nashua (United States), based on data from iem. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.