Severe weather near Lutherville-Timonium
This alert expired on 6 July 2026 at 00:15 UTC. It is kept here as a record.
It is the 2nd strongest of the 78 detections recorded within 20 km of this point since 12 March 2026. Another comparable one was recorded here earlier the same day. 10 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 5 at 7:54PM EDT until July 5 at 8:15PM EDT by NWS Baltimore MD/Washington DC
An estimated 2,134,504 people live within 50 km of this point.
Nearby, since 12 March 2026
- July 6, 2026 · score 52 · 4.5 km
- March 16, 2026 · score 52 · 9.0 km
- March 17, 2026 · score 52 · 10.3 km
How we know
Confirmed by 3 independent sources, including NOAA.
Our own score for this event is 52 out of 100, at 88 % 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 | 88% |
| Coordinates | 39.4908, -76.5411 |
| Nearest City | Lutherville-Timonium (8 km) |
| Population Exposed | 2.1M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-05T23:54:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.dd441049e64b50b9923b4d9995848e95 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Anne Arundel, MD; Prince Georges, MD; Anne Arundel, MD; Howard, MD; Montgomery, MD; Prince Georges, MD; Bucks, PA; Montgomery, PA; Philadelphia, PA and 2 more areas |
| Headline | Severe Thunderstorm Warning issued July 5 at 7:54PM EDT until July 5 at 8:15PM EDT by NWS Baltimore MD/Washington DC |
| Expires | 2026-07-05T20:15:00-04:00 |
| SenderName | NWS Baltimore MD/Washington DC |
| HasExactCoords | true |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.dd441049e64b50b9923b4d9995848e9570e9d03d.001.1","noaa_urn:oid:2.49.0.1.840.0.ea02a0e3a4daad2c9bfc57e6d7569ed6fc08cf6c.001.1","noaa_urn:oid:2.49.0.1.840.0.d17e8688f6b44d40f5e6a101799c0d99bedded48.001.1","noaa_urn:oid:2.49.0.1.840.0.e4ba219bd91b8d36a3f2e04ae732027457a63daa.001.1","noaa_urn:oid:2.49.0.1.840.0.f6971072d50bd7d2f7e7c25d4b6fb7efa70acf1e.001.1"] |
| Iem TypeSummary | D |
| Iem City | 3 S Roxbury Mills |
| Iem County | Montgomery |
| Iem State | MD |
| Iem Wfo | LWX |
| Iem Remark | Numerous trees down at the intersection of Damascus Rd. and Georgia Ave. |
| MergedSources | [{"id":"iem_D_39.230_-77.120_1783290960000","source":"iem","severity":"low","severityValue":25,"timestamp":1783290960000,"latitude":39.23,"longitude":-77.12},{"id":"iem_D_39.220_-77.060_1783291560000","source":"iem","severity":"low","severityValue":25,"timestamp":1783291560000,"latitude":39.22,"longitude":-77.06}] |
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.
Calamity.live data shows a weather event with CalamityScore 52/100, near Lutherville-Timonium (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.