Right now
The most recent data we hold from NOAA arrived 11 minutes ago, and this point is in it.
3 other detections within 20 km in the last 24 hours, the nearest 3 km from here.
This alert is in force until 10 September 2026, 12:00 UTC.
It is the 26th strongest of the 73 detections recorded within 20 km of this point since 12 March 2026. Another comparable one was recorded here earlier the same day. 6 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Warning issued September 10 at 4:56AM EDT until September 10 at 8:00AM EDT by NWS Charleston WV
An estimated 56,489 people live within 50 km of this point.
Nearby, since 12 March 2026
- August 10, 2026 · score 39 · 2.6 km
- March 12, 2026 · score 39 · 9.0 km
- July 5, 2026 · score 39 · 10.9 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 32 out of 100, at 87 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 32 / 100 |
| Our confidence | 87% |
| Coordinates | 39.6476, -81.6769 |
| Nearest City | Parkersburg (43 km) |
| Population Exposed | 56.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-10T08:56:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.fbac46efa3008e0227f95917cda459c76328a671.001.1 |
Score Breakdown
Technical Details
| Event | Flood Warning |
| Urgency | Expected |
| Certainty | Likely |
| AreaDesc | Washington, OH; Monroe, OH; Noble, OH; Morgan, OH and 1 more areas |
| Headline | Flood Warning issued September 10 at 4:56AM EDT until September 10 at 8:00AM EDT by NWS Charleston WV |
| Expires | 2026-09-10T08:00:00-04:00 |
| SenderName | NWS Charleston WV |
| HasExactCoords | true |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.fbac46efa3008e0227f95917cda459c76328a671.001.1","noaa_urn:oid:2.49.0.1.840.0.3d7fe8a6d9f0acfbf878c928f0bb0f6569ee1e78.001.1","noaa_urn:oid:2.49.0.1.840.0.37481c88911f1108e095c706d8967d1b73e9e937.001.1","noaa_urn:oid:2.49.0.1.840.0.39e927488a06e315c767ebcab5adb61e89624a51.001.1","noaa_urn:oid:2.49.0.1.840.0.cb76287ab2efc9b2edc0ce94da989c1af15eadbb.001.1"] |
| Iem TypeSummary | F |
| Iem City | 7 ESE Lower Salem |
| Iem County | Washington |
| Iem State | OH |
| Iem Wfo | RLX |
| Iem Remark | High water observed along Fifteenmile Creek Road. |
| MergedSources | [{"id":"iem_F_39.770_-82.100_1789011360000","source":"iem","severity":"low","severityValue":25,"timestamp":1789011360000,"latitude":39.77,"longitude":-82.1},{"id":"iem_F_39.650_-81.850_1789013220000","source":"iem","severity":"low","severityValue":25,"timestamp":1789013220000,"latitude":39.65,"longitude":-81.85},{"id":"iem_F_39.650_-81.850_1789015140000","source":"iem","severity":"low","severityValue":25,"timestamp":1789015140000,"latitude":39.65,"longitude":-81.85},{"id":"iem_F_39.700_-82.120_1789014900000","source":"iem","severity":"low","severityValue":25,"timestamp":1789014900000,"latitude":39.7,"longitude":-82.12},{"id":"iem_F_39.680_-81.830_1789013820000","source":"iem","severity":"low","severityValue":25,"timestamp":1789013820000,"latitude":39.68,"longitude":-81.83},{"id":"iem_F_39.520_-81.280_1789016400000","source":"iem","severity":"low","severityValue":25,"timestamp":1789016400000,"latitude":39.52,"longitude":-81.28}] |
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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