Right now
The most recent data we hold from NOAA arrived 60 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
This alert expired on 8 July 2026 at 03:00 UTC. It is kept here as a record.
What the source measured
NOAA reported: Flash Flood Warning issued July 7 at 8:00PM EDT until July 7 at 11:00PM EDT by NWS Raleigh NC
Urban PEI: 1,529,428 within a heuristic 50 km radius; not unique people.
How we know
7 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 52 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) | 52 / 100 |
| Legacy data-support index | 0.90/1 |
| Coordinates | 35.9218, -78.6468 |
| Nearest City | Wake Forest (14 km) |
| Urban exposure index (PEI) | 1.5M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-08T00:00:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.29f9687703ccc8c58728a24b4332395c |
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: 2026-07-08T00:00:00.000Z.
First archived: 2026-07-08T00:55:02.295Z. 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 | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Wake, NC; Chatham, NC; Durham, NC; Orange, NC; Wake, NC |
| Headline | Flash Flood Warning issued July 7 at 8:00PM EDT until July 7 at 11:00PM EDT by NWS Raleigh NC |
| Expires | 2026-07-07T23:00:00-04:00 |
| SenderName | NWS Raleigh NC |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.29f9687703ccc8c58728a24b4332395c0de32ed2.001.1","noaa_urn:oid:2.49.0.1.840.0.e5886e6069329970dd8066770527ec65b067a754.001.1"] |
| Iem TypeSummary | F |
| Iem City | 3 NNE Durham |
| Iem County | Durham |
| Iem State | NC |
| Iem Wfo | RAH |
| Iem Remark | Entrance/exit ramps near intersection of Duke street and I-85 impassable due to flooding. |
| MergedSources | [{"id":"iem_D_35.960_-78.890_1783465440000","source":"iem","severity":"low","severityValue":25,"timestamp":1783465440000,"latitude":35.96,"longitude":-78.89},{"id":"iem_D_35.540_-78.290_1783455720000","source":"iem","severity":"low","severityValue":25,"timestamp":1783455720000,"latitude":35.54,"longitude":-78.29},{"id":"iem_D_36.180_-78.910_1783464300000","source":"iem","severity":"low","severityValue":25,"timestamp":1783464300000,"latitude":36.18,"longitude":-78.91},{"id":"iem_F_35.860_-78.850_1783467960000","source":"iem","severity":"low","severityValue":25,"timestamp":1783467960000,"latitude":35.86,"longitude":-78.85},{"id":"iem_D_35.980_-78.830_1783465620000","source":"iem","severity":"low","severityValue":25,"timestamp":1783465620000,"latitude":35.98,"longitude":-78.83},{"id":"iem_F_36.020_-78.900_1783466220000","source":"iem","severity":"low","severityValue":25,"timestamp":1783466220000,"latitude":36.02,"longitude":-78.9}] |
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.
Review the area, threshold and delivery channel in your account.
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