Right now
The most recent data we hold from NOAA arrived 4 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 23 June 2026 at 06:15 UTC. It is kept here as a record.
It is the 13th strongest of the 48 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: Flash Flood Warning issued June 22 at 11:15PM EDT until June 23 at 2:15AM EDT by NWS Wakefield VA
Urban PEI: 677,669 within a heuristic 50 km radius; not unique people.
Nearby, since 17 March 2026
- August 4, 2026 · score 48 · 1.1 km
- July 28, 2026 · score 72 · 10.2 km
- September 13, 2026 · score 49 · 14.6 km
How we know
16 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 48 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) | 48 / 100 |
| Legacy data-support index | 0.89/1 |
| Coordinates | 37.0827, -76.8275 |
| Nearest City | Williamsburg (23 km) |
| Urban exposure index (PEI) | 677.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-23T03:15:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.73687a26f3ce9d282191af12980281b1 |
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: 2026-06-23T03:15:00.000Z.
First archived: 2026-06-23T04:19:37.452Z. 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 | City of Chesapeake, VA; City of Hampton, VA; City of Newport News, VA; City of Norfolk, VA; City of Portsmouth, VA; City of Suffolk, VA; City of Virginia Beach, VA; Chesterfield, VA; Prince George, VA; City of Colonial Heights, VA; City of Hopewell, VA; City of Petersburg, VA |
| Headline | Flash Flood Warning issued June 22 at 11:15PM EDT until June 23 at 2:15AM EDT by NWS Wakefield VA |
| Expires | 2026-06-23T02:15:00-04:00 |
| SenderName | NWS Wakefield VA |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.73687a26f3ce9d282191af12980281b1eca513ab.001.1","noaa_urn:oid:2.49.0.1.840.0.8b26278a6240fc05dc8e9ec4f3f71ecb2092fce0.001.1"] |
| Iem TypeSummary | F |
| Iem City | 1 N Downtown Norfolk |
| Iem County | City of Norfolk |
| Iem State | VA |
| Iem Wfo | AKQ |
| Iem Remark | Member of the public reported 6-8 inches of standing water on the corner of Monticello Avenue and E 17th Street. |
| MergedSources | [{"id":"iem_D_36.910_-76.740_1782179580000","source":"iem","severity":"low","severityValue":25,"timestamp":1782179580000,"latitude":36.91,"longitude":-76.74},{"id":"iem_M_36.950_-76.390_1782182100000","source":"iem","severity":"low","severityValue":25,"timestamp":1782182100000,"latitude":36.95,"longitude":-76.39},{"id":"iem_D_37.480_-77.490_1782170400000","source":"iem","severity":"low","severityValue":25,"timestamp":1782170400000,"latitude":37.48,"longitude":-77.49},{"id":"iem_D_36.990_-77.140_1782178080000","source":"iem","severity":"low","severityValue":25,"timestamp":1782178080000,"latitude":36.99,"longitude":-77.14},{"id":"iem_M_37.010_-76.310_1782182580000","source":"iem","severity":"low","severityValue":25,"timestamp":1782182580000,"latitude":37.01,"longitude":-76.31},{"id":"iem_D_36.950_-77.400_1782177600000","source":"iem","severity":"low","severityValue":25,"timestamp":1782177600000,"latitude":36.95,"longitude":-77.4},{"id":"iem_D_36.950_-76.950_1782178980000","source":"iem","severity":"low","severityValue":25,"timestamp":1782178980000,"latitude":36.95,"longitude":-76.95},{"id":"iem_D_37.070_-76.320_1782181800000","source":"iem","severity":"low","severityValue":25,"timestamp":1782181800000,"latitude":37.07,"longitude":-76.32},{"id":"iem_M_36.980_-76.360_1782182340000","source":"iem","severity":"low","severityValue":25,"timestamp":1782182340000,"latitude":36.98,"longitude":-76.36},{"id":"iem_D_37.130_-77.230_1782177960000","source":"iem","severity":"low","severityValue":25,"timestamp":1782177960000,"latitude":37.13,"longitude":-77.23},{"id":"iem_D_36.980_-76.410_1782181620000","source":"iem","severity":"low","severityValue":25,"timestamp":1782181620000,"latitude":36.98,"longitude":-76.41},{"id":"iem_D_36.910_-76.840_1782179280000","source":"iem","severity":"low","severityValue":25,"timestamp":1782179280000,"latitude":36.91,"longitude":-76.84},{"id":"iem_D_37.030_-76.440_1782181200000","source":"iem","severity":"low","severityValue":25,"timestamp":1782181200000,"latitude":37.03,"longitude":-76.44},{"id":"iem_D_36.900_-76.570_1782180900000","source":"iem","severity":"low","severityValue":25,"timestamp":1782180900000,"latitude":36.9,"longitude":-76.57},{"id":"iem_F_36.860_-76.290_1782185100000","source":"iem","severity":"low","severityValue":25,"timestamp":1782185100000,"latitude":36.86,"longitude":-76.29}] |
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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