This alert expired on 4 August 2026 at 22:15 UTC. It is kept here as a record.
It is the 9th strongest of the 73 detections recorded within 20 km of this point since 15 March 2026. Another comparable one was recorded here earlier the same day. 14 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 4 at 6:03PM EDT until August 4 at 6:15PM EDT by NWS Melbourne FL
An estimated 461,518 people live within 50 km of this point.
Nearby, since 15 March 2026
- July 20, 2026 · score 48 · 3.1 km
- May 10, 2026 · score 43 · 4.1 km
- July 5, 2026 · score 43 · 4.7 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 43 out of 100, at 86 % 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) | 43 / 100 |
| Our confidence | 86% |
| Coordinates | 29.0400, -80.9133 |
| Nearest City | New Smyrna Beach (2 km) |
| Population Exposed | 461.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-04T22:03:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.ec72b9d853ca5c995ae749ab169f23ad6763a59a.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Volusia, FL |
| Headline | Severe Thunderstorm Warning issued August 4 at 6:03PM EDT until August 4 at 6:15PM EDT by NWS Melbourne FL |
| Expires | 2026-08-04T18:15:00-04:00 |
| SenderName | NWS Melbourne FL |
| HasExactCoords | true |
| Iem TypeSummary | M |
| Iem Magnitude | 40 |
| Iem Unit | MPH |
| Iem City | 5 E Lagrange |
| Iem County | Brevard |
| Iem State | FL |
| Iem Wfo | MLB |
| Iem Remark | USSF wind sensor on tower 714 (Merritt Isl Wildlife Refuge) measured a peak wind gust of 40MPH/35KT from the southwest at 5:05 PM. Sensor elevation is 54 feet. |
| MergedSources | [{"id":"iem_M_28.640_-80.750_1785877500000","source":"iem","severity":"low","severityValue":25,"timestamp":1785877500000,"latitude":28.64,"longitude":-80.75}] |
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 43/100, near New Smyrna Beach (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.