This alert expired on 18 May 2026 at 18:30 UTC. It is kept here as a record.
It is the 2nd strongest of the 57 detections recorded within 20 km of this point since 31 March 2026. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 18 at 1:44PM EDT until May 18 at 2:30PM EDT by NWS Northern Indiana
An estimated 265,573 people live within 50 km of this point.
Nearby, since 31 March 2026
- July 4, 2026 · score 43 · 5.5 km
- July 27, 2026 · score 43 · 9.9 km
- May 18, 2026 · score 43 · 14.8 km
How we know
Confirmed by 3 independent sources, including NOAA.
Our own score for this event is 43 out of 100, at 90 % 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 | 90% |
| Coordinates | 41.3452, -86.1969 |
| Nearest City | Mishawaka (35 km) |
| Population Exposed | 265.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-18T17:44:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.f91a4ccb42b1d8625f696e91fe1978ee |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Kosciusko, IN; Wabash, IN; Elkhart, IN; St. Joseph, IN; Cass, MI; St. Joseph, MI; Marshall, IN; St. Joseph, IN and 4 more areas |
| Headline | Severe Thunderstorm Warning issued May 18 at 1:44PM EDT until May 18 at 2:30PM EDT by NWS Northern Indiana |
| Expires | 2026-05-18T14:30:00-04:00 |
| SenderName | NWS Northern Indiana |
| HasExactCoords | true |
| MergedCount | 7 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.f91a4ccb42b1d8625f696e91fe1978ee07de7b32.001.1","noaa_urn:oid:2.49.0.1.840.0.35d6fe98da85ae2719264da4a03ea7b19f7cf392.001.1","noaa_urn:oid:2.49.0.1.840.0.bc8dfaf14b6021392006871778abf32dc48ad07a.001.1","noaa_urn:oid:2.49.0.1.840.0.6d391646e305da5e0b219c6f1bc604ecb00b81f2.001.1","noaa_urn:oid:2.49.0.1.840.0.f20ee889731e67f48f967597887fe984a48c2321.001.1","noaa_urn:oid:2.49.0.1.840.0.0417cd7e42bcbb41bf9cfe1ea3df5d82bb65057c.001.1","noaa_urn:oid:2.49.0.1.840.0.c867a9423a9ea3ffc94072d7c61f8a36fcd30606.001.1"] |
| Iem TypeSummary | M |
| Iem Magnitude | 62 |
| Iem Unit | MPH |
| Iem City | 4 NE Beverly Shores |
| Iem County | LMZ745 |
| Iem State | IN |
| Iem Wfo | LOT |
| Iem Remark | Michigan City CMAN station reported 54 kt gust. |
| MergedSources | [{"id":"iem_G_41.340_-87.020_1779122400000","source":"iem","severity":"low","severityValue":25,"timestamp":1779122400000,"latitude":41.34,"longitude":-87.02},{"id":"iem_M_41.730_-86.930_1779122640000","source":"iem","severity":"low","severityValue":25,"timestamp":1779122640000,"latitude":41.73,"longitude":-86.93}] |
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 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.