Right now
The most recent data we hold from NOAA arrived 27 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 27 June 2026 at 08:00 UTC. It is kept here as a record.
What the source measured
NOAA reported: Severe Thunderstorm Watch issued June 27 at 12:52AM CDT until June 27 at 3:00AM CDT by NWS Tulsa OK
Urban PEI: 1,089,769 within a heuristic 50 km radius; not unique people.
How we know
8 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 | 0.91/1 |
| Coordinates | 35.5000, -97.1000 |
| Nearest City | Shawnee (24 km) |
| Urban exposure index (PEI) | 1.1M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-27T05:52:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Watch_noaa_urn:oid:2.49.0.1.840.0.a5b6a5f58f1fc3789dc8fefd1445e616 |
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: 2026-06-27T05:52:00.000Z.
First archived: 2026-06-27T07:52:59.387Z. 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 | Severe Thunderstorm Watch |
| Urgency | Future |
| Certainty | Possible |
| AreaDesc | Creek, OK; Okfuskee, OK; Okmulgee, OK; Osage, OK; Pawnee, OK; Tulsa, OK; Alfalfa, OK; Blaine, OK; Canadian, OK; Custer, OK; Dewey, OK; Ellis, OK; Garfield, OK; Grant, OK; Harper, OK; Kay, OK; Kingfisher, OK; Lincoln, OK; Logan, OK; Major, OK; Noble, OK; Oklahoma, OK; Payne, OK; Roger Mills, OK; Woods, OK; Woodward, OK; Cleveland, OK; Pottawatomie, OK; Seminole, OK |
| Headline | Severe Thunderstorm Watch issued June 27 at 12:52AM CDT until June 27 at 3:00AM CDT by NWS Tulsa OK |
| Expires | 2026-06-27T03:00:00-05:00 |
| SenderName | NWS Tulsa OK |
| HasExactCoords | false |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.a5b6a5f58f1fc3789dc8fefd1445e6167ff2a61f.002.1","noaa_urn:oid:2.49.0.1.840.0.e859bf8fd990a93ca66518cf9ad9aa75144e7c87.002.1","noaa_urn:oid:2.49.0.1.840.0.e859bf8fd990a93ca66518cf9ad9aa75144e7c87.001.1"] |
| Iem TypeSummary | F |
| Iem City | Stillwater |
| Iem County | Payne |
| Iem State | OK |
| Iem Wfo | OUN |
| Iem Remark | Multiple streets flooding (curb deep), with many vehicles stalled out. Similar reports across other parts of Payne county. |
| MergedSources | [{"id":"iem_G_35.660_-97.190_1782540060000","source":"iem","severity":"low","severityValue":25,"timestamp":1782540060000,"latitude":35.66,"longitude":-97.19},{"id":"iem_G_36.160_-97.090_1782523500000","source":"iem","severity":"low","severityValue":25,"timestamp":1782523500000,"latitude":36.16,"longitude":-97.09},{"id":"iem_D_36.160_-97.090_1782523860000","source":"iem","severity":"low","severityValue":25,"timestamp":1782523860000,"latitude":36.16,"longitude":-97.09},{"id":"iem_D_36.160_-97.080_1782523800000","source":"iem","severity":"low","severityValue":25,"timestamp":1782523800000,"latitude":36.16,"longitude":-97.08},{"id":"iem_D_36.140_-97.040_1782525360000","source":"iem","severity":"low","severityValue":25,"timestamp":1782525360000,"latitude":36.14,"longitude":-97.04},{"id":"iem_G_36.170_-97.080_1782523680000","source":"iem","severity":"low","severityValue":25,"timestamp":1782523680000,"latitude":36.17,"longitude":-97.08},{"id":"iem_F_36.120_-97.060_1782528300000","source":"iem","severity":"low","severityValue":25,"timestamp":1782528300000,"latitude":36.12,"longitude":-97.06}] |
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
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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