Right now
The most recent data we hold from NOAA arrived 3 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 2 July 2026 at 22:15 UTC. It is kept here as a record.
No stronger detection stands among the 45 recorded within 20 km of this point since 16 March 2026 — 18 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
NOAA reported: Severe Thunderstorm Warning issued July 2 at 5:10PM EDT until July 2 at 6:15PM EDT by NWS Burlington VT
An estimated 23,886 people live within 50 km of this point.
Nearby, since 16 March 2026
- July 15, 2026 · score 34 · 11.3 km
- August 8, 2026 · score 34 · 15.2 km
- June 18, 2026 · score 34 · 15.5 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 34 out of 100, at 83 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 34 / 100 |
| Our confidence | 83% |
| Coordinates | 44.5861, -75.3443 |
| Nearest City | Brockville (27 km) |
| Population Exposed | 23.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-02T21:10:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.5f8a26c83691096564bd6da43d195d92 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | St. Lawrence, NY |
| Headline | Severe Thunderstorm Warning issued July 2 at 5:10PM EDT until July 2 at 6:15PM EDT by NWS Burlington VT |
| Expires | 2026-07-02T18:15:00-04:00 |
| SenderName | NWS Burlington VT |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.5f8a26c83691096564bd6da43d195d92520736dc.001.1","noaa_urn:oid:2.49.0.1.840.0.3aa1e5e2c42c2a3422991f2888a0d63a3261a264.001.1"] |
| Iem TypeSummary | R |
| Iem Magnitude | 1.16 |
| Iem Unit | Inch |
| Iem City | Helena |
| Iem County | St. Lawrence |
| Iem State | NY |
| Iem Wfo | BTV |
| MergedSources | [{"id":"iem_R_44.920_-74.720_1783006080000","source":"iem","severity":"low","severityValue":25,"timestamp":1783006080000,"latitude":44.92,"longitude":-74.72}] |
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 8 March 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.
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