Right now
The most recent data we hold from NOAA arrived 34 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 18 June 2026 at 22:45 UTC. It is kept here as a record.
It is the 6th strongest of the 60 detections recorded within 20 km of this point since 9 March 2026. The last comparable one was on 18 June 2026. 12 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Warning issued June 17 at 11:40PM CDT until June 22 at 7:00AM CDT by NWS New Orleans LA
Urban PEI: 67,174 within a heuristic 50 km radius; not unique people.
Nearby, since 9 March 2026
- June 21, 2026 · score 39 · 3.3 km
- September 10, 2026 · score 37 · 4.2 km
- June 2, 2026 · score 39 · 11.1 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 39 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) | 39 / 100 |
| Legacy data-support index | 0.81/1 |
| Coordinates | 30.6717, -90.6242 |
| Nearest City | Hammond (25 km) |
| Urban exposure index (PEI) | 67.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-21T15:00:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flood Warning_noaa_urn:oid:2.49.0.1.840.0.8db9cef03861299ee86a40e4ddbd0fb5 |
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: 2026-06-21T15:00:00.000Z.
First archived: 2026-06-18T06:36:20.267Z. 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 | Observed |
| AreaDesc | St. Helena, LA; East Baton Rouge, LA; Livingston, LA; St. Tammany, LA and 31 more areas |
| Headline | Flood Warning issued June 17 at 11:40PM CDT until June 22 at 7:00AM CDT by NWS New Orleans LA |
| Expires | 2026-06-18T17:45:00-05:00 |
| SenderName | NWS New Orleans LA |
| HasExactCoords | true |
| MergedCount | 44 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.8db9cef03861299ee86a40e4ddbd0fb5fde3886b.001.1","noaa_urn:oid:2.49.0.1.840.0.ff787dec58934d8bf04743fd2bf7fe18b8f45139.001.1","noaa_urn:oid:2.49.0.1.840.0.69ba806c2bdd85404c9c565e401cc0001e49908c.001.1","noaa_urn:oid:2.49.0.1.840.0.97401da3eda6e7bdb9587dd4c208fee19e3cc7dd.002.1","noaa_urn:oid:2.49.0.1.840.0.97401da3eda6e7bdb9587dd4c208fee19e3cc7dd.001.1","noaa_urn:oid:2.49.0.1.840.0.97401da3eda6e7bdb9587dd4c208fee19e3cc7dd.003.1","noaa_urn:oid:2.49.0.1.840.0.a7ac6b51eade36f0106c2720371b261177444820.001.1","noaa_urn:oid:2.49.0.1.840.0.a7ac6b51eade36f0106c2720371b261177444820.007.1","noaa_urn:oid:2.49.0.1.840.0.a7ac6b51eade36f0106c2720371b261177444820.002.1","noaa_urn:oid:2.49.0.1.840.0.a7ac6b51eade36f0106c2720371b261177444820.004.1","noaa_urn:oid:2.49.0.1.840.0.a7ac6b51eade36f0106c2720371b261177444820.003.1","noaa_urn:oid:2.49.0.1.840.0.a7ac6b51eade36f0106c2720371b261177444820.005.1","noaa_urn:oid:2.49.0.1.840.0.a7ac6b51eade36f0106c2720371b261177444820.006.1","noaa_urn:oid:2.49.0.1.840.0.3fdc854dd9194eec17abacb68edec5b9e6366f3e.001.1","noaa_urn:oid:2.49.0.1.840.0.3fdc854dd9194eec17abacb68edec5b9e6366f3e.002.1","noaa_urn:oid:2.49.0.1.840.0.110609c212a246db99063eeee2c5b6a42516d655.001.1","noaa_urn:oid:2.49.0.1.840.0.d84029028cbb8de162f6be73e2eb095f38094bb3.002.1","noaa_urn:oid:2.49.0.1.840.0.d84029028cbb8de162f6be73e2eb095f38094bb3.001.1","noaa_urn:oid:2.49.0.1.840.0.223d7e7135a291fa3a8b4cf0dd377e69f602da24.001.1","noaa_urn:oid:2.49.0.1.840.0.3d268d21d13d3e33e0146eaa47c71632479ff589.002.1","noaa_urn:oid:2.49.0.1.840.0.3d268d21d13d3e33e0146eaa47c71632479ff589.001.1","noaa_urn:oid:2.49.0.1.840.0.4107570982ca98010ad7978e3b969f04738da0a2.001.1","noaa_urn:oid:2.49.0.1.840.0.01894b92911cf4e871f49ca64169f5061927ad00.002.1","noaa_urn:oid:2.49.0.1.840.0.01894b92911cf4e871f49ca64169f5061927ad00.001.1","noaa_urn:oid:2.49.0.1.840.0.bc7cf4adec932c16a0fef55180e4bf0501c8dec5.001.1","noaa_urn:oid:2.49.0.1.840.0.e425261d0735d459ca55004e1eeb31f5e8a1f18c.001.1","noaa_urn:oid:2.49.0.1.840.0.4209d40831c8157071e413c81cc70a191183e96a.003.1","noaa_urn:oid:2.49.0.1.840.0.4209d40831c8157071e413c81cc70a191183e96a.001.1","noaa_urn:oid:2.49.0.1.840.0.3dac3aee0fe15ca33adb80b1d2f30ef152f5172e.001.1","noaa_urn:oid:2.49.0.1.840.0.21c502fff6796e3dbad37e5814251b5c0974ee6e.001.1","noaa_urn:oid:2.49.0.1.840.0.c64f8c733c6076de914af0f85c904539168c8db9.001.1","noaa_urn:oid:2.49.0.1.840.0.ebd9ef8754e4e0e3aeefc59eece744c1ce3eb6c8.001.1","noaa_urn:oid:2.49.0.1.840.0.59fa567a7fff2a1d4c098379cd257a2ef6c77ee5.001.1","noaa_urn:oid:2.49.0.1.840.0.b8bc15c4fa6dfa8596f1676cd64036a03bd0a9f1.001.1","noaa_urn:oid:2.49.0.1.840.0.b8bc15c4fa6dfa8596f1676cd64036a03bd0a9f1.002.1","noaa_urn:oid:2.49.0.1.840.0.f9e92ec86043fe468e9ebee9dc508f81556705a1.001.1","noaa_urn:oid:2.49.0.1.840.0.857124d60c5577674775ae0119b21f730747bd5a.002.1","noaa_urn:oid:2.49.0.1.840.0.857124d60c5577674775ae0119b21f730747bd5a.001.1","noaa_urn:oid:2.49.0.1.840.0.a3e944e69c4a190d46da834ddbaceacff3a160bc.001.1","noaa_urn:oid:2.49.0.1.840.0.01c4b29ece621c8512d1723aa699a90ba630b610.001.1","noaa_urn:oid:2.49.0.1.840.0.ca1edf6f97878cdc6ea3e666f876b4feff872da1.001.1","noaa_urn:oid:2.49.0.1.840.0.ca1edf6f97878cdc6ea3e666f876b4feff872da1.002.1","noaa_urn:oid:2.49.0.1.840.0.ff8484a213626b9d32fabe5f0bb2f4b39c9f463b.001.1","noaa_urn:oid:2.49.0.1.840.0.e01e228bffd5e296b4767256c91e1ead6a3947af.001.1"] |
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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