This alert expired on 15 March 2026 at 21:00 UTC. It is kept here as a record.
No stronger detection stands among the 144 recorded within 20 km of this point since 15 March 2026 — 50 others scored the same. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued March 15 at 4:13PM EDT until March 15 at 5:00PM EDT by NWS Melbourne FL
An estimated 347,890 people live within 50 km of this point.
Nearby, since 15 March 2026
- March 15, 2026 · score 43 · 5.2 km
- March 17, 2026 · score 43 · 5.4 km
- July 16, 2026 · score 43 · 9.5 km
How we know
Confirmed by 3 independent sources, including NOAA.
Our own score for this event is 43 out of 100, at 88 % 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) | 43 / 100 |
| Our confidence | 88% |
| Coordinates | 28.2711, -80.6434 |
| Nearest City | Merritt Island (11 km) |
| Population Exposed | 347.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-15T20:13:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe-Thunderstorm-Warning_noaa_urn-oid-2_49_0_1_840_0_3f13bbb69a3d9d2a3525a7d3b1d0e4c8 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Brevard, FL |
| Headline | Severe Thunderstorm Warning issued March 15 at 4:13PM EDT until March 15 at 5:00PM EDT by NWS Melbourne FL |
| Expires | 2026-03-15T17:00:00-04:00 |
| SenderName | NWS Melbourne FL |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.3f13bbb69a3d9d2a3525a7d3b1d0e4c831294861.001.1","noaa_urn:oid:2.49.0.1.840.0.2a57876846e5c7547ead3a7acf31a61e077e2a29.001.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1 |
| Iem Unit | Inch |
| Iem City | 3 W Grant-Valkaria |
| Iem County | Brevard |
| Iem State | FL |
| Iem Wfo | MLB |
| Iem Remark | Off duty NWS employee reported dime to quarter sized hail near Ramblebrook St. in Malabar. |
| MergedSources | [{"id":"iem_G_28.080_-80.610_1773603120000","source":"iem","severity":"low","severityValue":25,"timestamp":1773603120000,"latitude":28.08,"longitude":-80.61},{"id":"iem_H_27.940_-80.600_1773603420000","source":"iem","severity":"low","severityValue":25,"timestamp":1773603420000,"latitude":27.94,"longitude":-80.6}] |
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.
Want to know when something happens near Merritt Island?
Calamity.live data shows a weather event with CalamityScore 43/100, near Merritt Island (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.