Right now
The most recent data we hold from NOAA arrived 2 hours 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 19 March 2026 at 01:45 UTC. It is kept here as a record.
It is the 4th strongest of the 16 detections recorded within 20 km of this point since 17 March 2026. Another comparable one was recorded here earlier the same day. 5 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Warning issued March 18 at 10:42AM EDT until March 18 at 9:45PM EDT by NWS Caribou ME
Nearby, since 17 March 2026
- March 19, 2026 · score 22 · 0.4 km
- March 18, 2026 · score 22 · 0.4 km
How we know
3 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 22 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 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) | 22 / 100 |
| Legacy data-support index | 0.70/1 |
| Coordinates | 45.2687, -68.7419 |
| Nearest City | Bangor (52 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-03-18T14:42:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.da4aaa15d6a7a9bdade66f8c93e8261e733bda87.001.1 |
Physical priority index · v1. 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: noaa. Occurrence: 2026-03-18T14:42:00.000Z.
First archived: 2026-03-18T20:34:48.527Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Penobscot, ME; Piscataquis, ME |
| Headline | Flood Warning issued March 18 at 10:42AM EDT until March 18 at 9:45PM EDT by NWS Caribou ME |
| Expires | 2026-03-18T21:45:00-04:00 |
| SenderName | NWS Caribou ME |
| HasExactCoords | true |
| Iem TypeSummary | x |
| Iem City | 5 NW Howland |
| Iem County | Penobscot |
| Iem State | ME |
| Iem Wfo | CAR |
| Iem Remark | Ice Jam on the Piscataquis River is flooding the North Howland Road in multiple locations with several inches of moving water. Large ice chunks have been pushed into properties. |
| MergedSources | [{"id":"iem_x_45.280_-68.740_1773841380000","source":"iem","severity":"low","severityValue":25,"timestamp":1773841380000,"latitude":45.28,"longitude":-68.74},{"id":"iem_x_45.280_-68.740_1773845400000","source":"iem","severity":"low","severityValue":25,"timestamp":1773845400000,"latitude":45.28,"longitude":-68.74}] |
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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