Right now
The most recent data we hold from IEM arrived 32 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.
Reported by IEM yesterday.
It is one of only 3 we have recorded within 20 km of this point since 25 September 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
IEM reported: Dexter Fire Chief reported on facebook NM2 at Jackson Rd south of Lake Arthur having flooded and underwater. Time estimated based on radar.
Urban PEI: 48,544 within a heuristic 50 km radius; not unique people.
How we know
One source: IEM. Not yet confirmed by a second, independent source.
Our own score for this event is 21 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
Computed under scoring rules v5. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Floods |
| Severity | High |
| Calamity Score (ours) | 21 / 100 |
| Legacy data-support index | 0.60/1 |
| Coordinates | 32.9800, -104.3700 |
| Nearest City | Roswell (48 km) |
| Urban exposure index (PEI) | 48.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-25T09:05:00.000Z |
| Source | https://mesonet.agron.iastate.edu/lsr/ |
Physical priority index · v5. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: iem. Occurrence: 2026-09-25T09:05:00.000Z.
First archived: 2026-09-25T13:16:35.486Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
2026-09-26T02:53:16.333Z · data_change
Index 21 → 21; severity high → high; version 5 → 5.
2026-09-26T02:16:28.423Z · data_change
Index 21 → 21; severity high → high; version 5 → 5.
2026-09-26T01:55:22.432Z · data_change
Index 21 → 21; severity high → high; version 5 → 5.
2026-09-26T00:04:48.492Z · data_change
Index 21 → 21; severity high → high; version 5 → 5.
2026-09-25T23:05:50.740Z · data_change
Index 21 → 21; severity high → high; version 5 → 5.
2026-09-25T22:49:37.867Z · data_change
Index 21 → 21; severity high → high; version 5 → 5.
2026-09-25T21:18:27.778Z · data_change
Index 21 → 21; severity high → high; version 5 → 5.
2026-09-25T19:03:46.426Z · data_change
Index 21 → 21; severity high → high; version 5 → 5.
2026-09-25T16:12:30.126Z · data_change
Index 21 → 21; severity high → high; version 5 → 5.
2026-09-25T15:40:31.668Z · data_change
Index 21 → 21; severity high → high; version 5 → 5.
2026-09-25T15:29:52.746Z · data_change
Index 21 → 21; severity high → high; version 5 → 5.
2026-09-25T15:13:54.881Z · data_change
Index 21 → 21; severity high → high; version 5 → 5.
2026-09-25T14:41:34.365Z · data_change
Index 21 → 21; severity high → high; version 5 → 5.
Score Breakdown
Technical Details
| TypeSummary | Flash flood |
| LsrCode | F |
| LsrType | FLASH FLOOD |
| City | 2 SSW Lake Arthur |
| County | Chaves |
| State | NM |
| Wfo | ABQ |
| Remark | Dexter Fire Chief reported on facebook NM2 at Jackson Rd south of Lake Arthur having flooded and underwater. Time estimated based on radar. |
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.
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