Right now
The most recent data we hold from NOAA arrived 12 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 4 July 2026 at 08:00 UTC. It is kept here as a record.
It is the 4th strongest of the 23 detections recorded within 20 km of this point since 17 April 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 July 4 at 2:43AM CDT until July 4 at 3:00AM CDT by NWS Des Moines IA
An estimated 261,709 people live within 50 km of this point.
Nearby, since 17 April 2026
- June 6, 2026 · score 67 · 9.6 km
How we know
Confirmed by 4 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.
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 | 90% |
| Coordinates | 41.3162, -93.2110 |
| Nearest City | Indianola (30 km) |
| Population Exposed | 261.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-04T07:43:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.f276411abbc88c09b27810c1d0ae8071 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Warren, IA; Lucas, IA; Mahaska, IA; Marion, IA; Monroe, IA; Warren, IA |
| Headline | Severe Thunderstorm Warning issued July 4 at 2:43AM CDT until July 4 at 3:00AM CDT by NWS Des Moines IA |
| Expires | 2026-07-04T03:00:00-05:00 |
| SenderName | NWS Des Moines IA |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.f276411abbc88c09b27810c1d0ae80715fdd9b12.002.1","noaa_urn:oid:2.49.0.1.840.0.1c74c5fe4186a38e0e97c57f32c5425af933b4a1.001.1"] |
| Iem TypeSummary | G |
| Iem Magnitude | 58 |
| Iem Unit | MPH |
| Iem City | 1 WNW Carlisle |
| Iem County | Warren |
| Iem State | IA |
| Iem Wfo | DMX |
| Iem Remark | PWS gust. |
| MergedSources | [{"id":"iem_G_41.540_-93.660_1783149540000","source":"iem","severity":"low","severityValue":25,"timestamp":1783149540000,"latitude":41.54,"longitude":-93.66},{"id":"iem_G_41.540_-93.660_1783149180000","source":"iem","severity":"low","severityValue":25,"timestamp":1783149180000,"latitude":41.54,"longitude":-93.66},{"id":"iem_G_41.510_-93.510_1783149000000","source":"iem","severity":"low","severityValue":25,"timestamp":1783149000000,"latitude":41.51,"longitude":-93.51}] |
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 Indianola?
Calamity.live data shows a weather event with CalamityScore 43/100, near Indianola (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.