Right now
The most recent data we hold from NOAA arrived 5 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 18 March 2026 at 17:45 UTC. It is kept here as a record.
No stronger detection stands among the 48 recorded within 20 km of this point since 16 March 2026 — 6 others scored the same. The last comparable one was on 16 March 2026. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Warning issued March 17 at 11:40AM EDT until March 21 at 2:00PM EDT by NWS Grand Rapids MI
An estimated 175,807 people live within 50 km of this point.
Nearby, since 16 March 2026
- March 17, 2026 · score 43 · 0.0 km
- September 2, 2026 · score 37 · 7.3 km
How we know
Confirmed by 10 independent sources, including NOAA.
Our own score for this event is 43 out of 100, at 89 % 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 | 89% |
| Coordinates | 42.2849, -85.1927 |
| Nearest City | Battle Creek (4 km) |
| Population Exposed | 175.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-17T15:40:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flood Warning_noaa_urn:oid:2.49.0.1.840.0.7ce20aacd89bb4cb5ea00fa44677db22 |
Score Breakdown
Technical Details
| Event | Flood Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Kent, MI; Clinton, MI; Newaygo, MI and 3 more areas |
| Headline | Flood Warning issued March 17 at 11:40AM EDT until March 21 at 2:00PM EDT by NWS Grand Rapids MI |
| Expires | 2026-03-18T13:45:00-04:00 |
| SenderName | NWS Grand Rapids MI |
| HasExactCoords | true |
| MergedCount | 6 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.7ce20aacd89bb4cb5ea00fa44677db22667b16bc.002.1","noaa_urn:oid:2.49.0.1.840.0.7ce20aacd89bb4cb5ea00fa44677db22667b16bc.003.1","noaa_urn:oid:2.49.0.1.840.0.7ce20aacd89bb4cb5ea00fa44677db22667b16bc.001.1","noaa_urn:oid:2.49.0.1.840.0.32abb25c2ed6f69d06127819563987721e699b31.002.1","noaa_urn:oid:2.49.0.1.840.0.32abb25c2ed6f69d06127819563987721e699b31.001.1","noaa_urn:oid:2.49.0.1.840.0.32abb25c2ed6f69d06127819563987721e699b31.003.1"] |
| Iem TypeSummary | S |
| Iem Magnitude | 1.3 |
| Iem Unit | Inch |
| Iem City | 1 WNW Kalamazoo |
| Iem County | Kalamazoo |
| Iem State | MI |
| Iem Wfo | GRR |
| Iem Remark | 48 Hour Total. |
| MergedSources | [{"id":"iem_S_42.210_-85.660_1773748800000","source":"iem","severity":"low","severityValue":25,"timestamp":1773748800000,"latitude":42.21,"longitude":-85.66},{"id":"iem_S_42.440_-85.650_1773745200000","source":"iem","severity":"low","severityValue":25,"timestamp":1773745200000,"latitude":42.44,"longitude":-85.65},{"id":"iem_S_42.450_-85.540_1773748800000","source":"iem","severity":"low","severityValue":25,"timestamp":1773748800000,"latitude":42.45,"longitude":-85.54},{"id":"iem_S_42.240_-85.860_1773745200000","source":"iem","severity":"low","severityValue":25,"timestamp":1773745200000,"latitude":42.24,"longitude":-85.86},{"id":"iem_S_42.360_-85.860_1773750600000","source":"iem","severity":"low","severityValue":25,"timestamp":1773750600000,"latitude":42.36,"longitude":-85.86},{"id":"iem_S_42.270_-85.480_1773748800000","source":"iem","severity":"low","severityValue":25,"timestamp":1773748800000,"latitude":42.27,"longitude":-85.48},{"id":"iem_S_42.210_-85.480_1773748800000","source":"iem","severity":"low","severityValue":25,"timestamp":1773748800000,"latitude":42.21,"longitude":-85.48},{"id":"iem_S_42.270_-85.860_1773745200000","source":"iem","severity":"low","severityValue":25,"timestamp":1773745200000,"latitude":42.27,"longitude":-85.86},{"id":"iem_S_42.280_-85.610_1773748800000","source":"iem","severity":"low","severityValue":25,"timestamp":1773748800000,"latitude":42.28,"longitude":-85.61}] |
Safety Information
During flooding: never walk, swim, or drive through floodwaters. Six inches of moving water can knock you down, and one foot of water can sweep away a vehicle. Move to higher ground if waters rise. After flooding, avoid contact with floodwater which may contain sewage, chemicals, or debris. Follow local emergency service guidance.
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 Battle Creek?
Calamity.live data shows a weather event with CalamityScore 43/100, near Battle Creek (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.