This alert expired on 5 July 2026 at 04:15 UTC. It is kept here as a record.
No stronger detection stands among the 18 recorded within 20 km of this point since 15 April 2026 — 8 others scored the same. Another comparable one was recorded here earlier the same day. 11 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 4 at 10:40PM CDT until July 4 at 11:15PM CDT by NWS Norman OK
An estimated 643,844 people live within 50 km of this point.
Nearby, since 15 April 2026
- June 24, 2026 · score 48 · 13.6 km
- May 22, 2026 · score 43 · 20.7 km
How we know
Confirmed by 14 independent sources, including NOAA.
Our own score for this event is 48 out of 100, at 91 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 48 / 100 |
| Our confidence | 91% |
| Coordinates | 35.7638, -95.8083 |
| Nearest City | Bixby (21 km) |
| Population Exposed | 643.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-05T03:40:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.e721bf929878265028ac4bf0548b6388 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Cleveland, OK; Garvin, OK; Grady, OK; McClain, OK; Stephens, OK; Cleveland, OK; McClain, OK; Pottawatomie, OK; Haskell, OK; Latimer, OK; Le Flore, OK; Pittsburg, OK; Pushmataha, OK; Sequoyah, OK and 9 more areas |
| Headline | Severe Thunderstorm Warning issued July 4 at 10:40PM CDT until July 4 at 11:15PM CDT by NWS Norman OK |
| Expires | 2026-07-04T23:15:00-05:00 |
| SenderName | NWS Norman OK |
| HasExactCoords | true |
| MergedCount | 12 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.e721bf929878265028ac4bf0548b6388356e87e0.001.1","noaa_urn:oid:2.49.0.1.840.0.da24f7dbe189f5aebb4cece7612a48b4537225ba.001.1","noaa_urn:oid:2.49.0.1.840.0.f16e2b8b58728b579bb77191da7f9809df4c886d.002.1","noaa_urn:oid:2.49.0.1.840.0.720e9c854c868ac3a38d5b53fdbb83903e58a55b.001.1","noaa_urn:oid:2.49.0.1.840.0.70728f9f86883a7346a4ea5eea5e2fcfd2642f87.001.1","noaa_urn:oid:2.49.0.1.840.0.525cd5877e58acd5c7aba1d2aa6ecc3947cd2507.001.1","noaa_urn:oid:2.49.0.1.840.0.6ed0a9d78694a961c2bf0880a413861cdad42b95.001.1","noaa_urn:oid:2.49.0.1.840.0.8f54a2560d1e42c4ad4dffc3be535e39cf559849.001.1","noaa_urn:oid:2.49.0.1.840.0.4f27317cf1c419023b0723133b7c4f02bba08aa8.001.1","noaa_urn:oid:2.49.0.1.840.0.4511d078a92e3ec7feb978131f5092c5366db007.001.1","noaa_urn:oid:2.49.0.1.840.0.ebafce3eb50c42539ccfdec2e5f2c5b4a32a2fbc.001.1","noaa_urn:oid:2.49.0.1.840.0.0007b21ee2a9ad34f3f2c5b087b6682b80c7ccf6.001.1"] |
| Iem TypeSummary | D |
| Iem City | Okmulgee |
| Iem County | Okmulgee |
| Iem State | OK |
| Iem Wfo | TSA |
| Iem Remark | Limbs broken off large pecan trees. Public report on County EM Facebook page. Time estimated by radar. Exact location in town unknown from post. |
| MergedSources | [{"id":"iem_D_36.250_-95.560_1783215900000","source":"iem","severity":"low","severityValue":25,"timestamp":1783215900000,"latitude":36.25,"longitude":-95.56},{"id":"iem_G_35.930_-95.140_1783217520000","source":"iem","severity":"low","severityValue":25,"timestamp":1783217520000,"latitude":35.93,"longitude":-95.14},{"id":"iem_G_36.200_-95.890_1783213200000","source":"iem","severity":"low","severityValue":25,"timestamp":1783213200000,"latitude":36.2,"longitude":-95.89},{"id":"iem_G_36.250_-95.340_1783216440000","source":"iem","severity":"low","severityValue":25,"timestamp":1783216440000,"latitude":36.25,"longitude":-95.34},{"id":"iem_D_36.030_-95.800_1783214700000","source":"iem","severity":"low","severityValue":25,"timestamp":1783214700000,"latitude":36.03,"longitude":-95.8},{"id":"iem_D_35.820_-95.910_1783215300000","source":"iem","severity":"low","severityValue":25,"timestamp":1783215300000,"latitude":35.82,"longitude":-95.91},{"id":"iem_G_36.430_-95.710_1783213800000","source":"iem","severity":"low","severityValue":25,"timestamp":1783213800000,"latitude":36.43,"longitude":-95.71},{"id":"iem_D_36.180_-95.950_1783213200000","source":"iem","severity":"low","severityValue":25,"timestamp":1783213200000,"latitude":36.18,"longitude":-95.95},{"id":"iem_D_36.300_-95.990_1783212900000","source":"iem","severity":"low","severityValue":25,"timestamp":1783212900000,"latitude":36.3,"longitude":-95.99},{"id":"iem_D_36.320_-95.870_1783213800000","source":"iem","severity":"low","severityValue":25,"timestamp":1783213800000,"latitude":36.32,"longitude":-95.87},{"id":"iem_G_35.640_-95.960_1783215780000","source":"iem","severity":"low","severityValue":25,"timestamp":1783215780000,"latitude":35.64,"longitude":-95.96},{"id":"iem_G_35.660_-95.360_1783218360000","source":"iem","severity":"low","severityValue":25,"timestamp":1783218360000,"latitude":35.66,"longitude":-95.36},{"id":"iem_D_35.620_-95.960_1783215900000","source":"iem","severity":"low","severityValue":25,"timestamp":1783215900000,"latitude":35.62,"longitude":-95.96}] |
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 10 February 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.
Calamity.live data shows a weather event with CalamityScore 48/100, near Bixby (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.