This alert expired on 10 August 2026 at 20:45 UTC. It is kept here as a record.
No stronger detection stands among the 114 recorded within 20 km of this point since 12 March 2026 — 2 others scored the same. The last comparable one was on 8 August 2026. 11 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued August 10 at 4:14PM EDT until August 10 at 4:45PM EDT by NWS Baltimore MD/Washington DC
An estimated 3,145,107 people live within 50 km of this point.
Nearby, since 12 March 2026
- July 28, 2026 · score 52 · 2.2 km
- March 12, 2026 · score 52 · 5.1 km
- July 28, 2026 · score 52 · 6.3 km
How we know
Confirmed by 6 independent sources, including NOAA.
Our own score for this event is 76 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 | critical |
| Calamity Score (ours) | 76 / 100 |
| Our confidence | 89% |
| Coordinates | 39.3740, -76.7700 |
| Nearest City | Randallstown (3 km) |
| Population Exposed | 3.1M within 50 km |
| Impact Tier | catastrophic |
| Timestamp | 2026-08-10T20:14:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.be9a74069276d74f5842d712e8e14faad4abc86b.001.1 |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Baltimore, MD; Carroll, MD; Howard, MD; Baltimore City, MD |
| Headline | Tornado Warning issued August 10 at 4:14PM EDT until August 10 at 4:45PM EDT by NWS Baltimore MD/Washington DC |
| Expires | 2026-08-10T16:45:00-04:00 |
| SenderName | NWS Baltimore MD/Washington DC |
| HasExactCoords | true |
| Iem TypeSummary | D |
| Iem City | 2 NNE New Salem |
| Iem County | York |
| Iem State | PA |
| Iem Wfo | CTP |
| Iem Remark | Trees down on wires Woodberry Road and West College Avenue. |
| Google News RssFeed | weather |
| Google News SourceName | WMAR 2 News Baltimore |
| MergedSources | [{"id":"iem_D_39.930_-76.760_1786387500000","source":"iem","severity":"low","severityValue":25,"timestamp":1786387500000,"latitude":39.93,"longitude":-76.76},{"id":"iem_D_39.930_-76.740_1786388700000","source":"iem","severity":"low","severityValue":25,"timestamp":1786388700000,"latitude":39.93,"longitude":-76.74},{"id":"iem_H_39.980_-76.790_1786387500000","source":"iem","severity":"low","severityValue":25,"timestamp":1786387500000,"latitude":39.98,"longitude":-76.79},{"id":"iem_D_39.930_-76.770_1786388700000","source":"iem","severity":"low","severityValue":25,"timestamp":1786388700000,"latitude":39.93,"longitude":-76.77},{"id":"gnews_weather_496219_233","source":"google_news","severity":"medium","severityValue":40,"timestamp":1786390421000,"latitude":39.29,"longitude":-76.61}] |
Safety Information
If a tornado warning is issued: go to a basement or an interior room on the lowest floor, away from windows. A vehicle and a mobile home are not shelter. Cover your head and neck. Wait for the official all-clear before going outside, and watch for downed power lines and gas leaks afterwards.
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.
Calamity.live data shows a weather event with CalamityScore 76/100, near Randallstown (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.