Calamity
MediumSevere WeatherCS: 48 · v1

Severe Weather near Broken Arrow

United StatesNOAA

Right now

The most recent data we hold from NOAA arrived 47 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.

2 other detections within 20 km in the last 24 hours, the nearest 8 km from here.

This alert expired on 5 July 2026 at 03:30 UTC. It is kept here as a record.

No stronger detection stands among the 38 recorded within 20 km of this point since 10 April 2026 — 12 others scored the same. Another comparable one was recorded here earlier the same day. 15 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Severe Thunderstorm Warning issued July 4 at 10:15PM CDT until July 4 at 10:30PM CDT by NWS Springfield MO

Urban PEI: 677,600 within a heuristic 50 km radius; not unique people.

Nearby, since 10 April 2026

How we know

17 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

TypeSevere Weather
SeverityMedium
Calamity Score (ours)48 / 100
Legacy data-support index0.90/1
Coordinates35.9994, -95.5802
Nearest CityBroken Arrow (20 km)
Urban exposure index (PEI)677.6K within 50 km
Impact Tiersignificant
Timestamp2026-07-05T03:15:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.82c29a58968562d036135f75915dd8fe

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: 2026-07-05T03:15:00.000Z.

First archived: 2026-07-05T03:21:25.446Z. 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

35
intensity
85
Urban PEI term
0
Scenario weight
80
Recorded reference / batch anomaly

Technical Details

EventSevere Thunderstorm Warning
UrgencyImmediate
CertaintyObserved
AreaDescJasper, MO; Barry, MO; McDonald, MO; Newton, MO; Jasper, MO; Lawrence, MO; Newton, MO and 7 more areas
HeadlineSevere Thunderstorm Warning issued July 4 at 10:15PM CDT until July 4 at 10:30PM CDT by NWS Springfield MO
Expires2026-07-04T22:30:00-05:00
SenderNameNWS Springfield MO
HasExactCoordstrue
MergedCount10
MergedIds["noaa_urn:oid:2.49.0.1.840.0.82c29a58968562d036135f75915dd8fe660e523b.001.1","noaa_urn:oid:2.49.0.1.840.0.8f54a2560d1e42c4ad4dffc3be535e39cf559849.001.1","noaa_urn:oid:2.49.0.1.840.0.4511d078a92e3ec7feb978131f5092c5366db007.001.1","noaa_urn:oid:2.49.0.1.840.0.f42125d0df92850445bd38344d75ed6b3d10dddc.001.1","noaa_urn:oid:2.49.0.1.840.0.328b39f6103acf5f874785ada4e5b575e06197aa.001.1","noaa_urn:oid:2.49.0.1.840.0.a13c28a5fbeffab72c3a4a65222bf2be0128a9a2.001.1","noaa_urn:oid:2.49.0.1.840.0.4f27317cf1c419023b0723133b7c4f02bba08aa8.001.1","noaa_urn:oid:2.49.0.1.840.0.42e0ba25ae5f8e6a5592efaed9d567d2d9202c1c.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"]
Iem TypeSummaryD
Iem CityOkmulgee
Iem CountyOkmulgee
Iem StateOK
Iem WfoTSA
Iem RemarkLimbs 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_G_36.570_-95.740_1783213500000","source":"iem","severity":"low","severityValue":25,"timestamp":1783213500000,"latitude":36.57,"longitude":-95.74},{"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_G_36.370_-95.270_1783215900000","source":"iem","severity":"low","severityValue":25,"timestamp":1783215900000,"latitude":36.37,"longitude":-95.27},{"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_G_35.930_-95.000_1783217880000","source":"iem","severity":"low","severityValue":25,"timestamp":1783217880000,"latitude":35.93,"longitude":-95},{"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 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.

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