Calamity
MediumSevere WeatherCS: 41 · v5

Severe Weather near Jeffersontown

United StatesSPC

Right now

The most recent data we hold from SPC arrived 3 hours ago, and this point is in it.

One other detection within 20 km in the last 24 hours, <1 km from here.

Reported by SPC today.

It is the 89th strongest of the 144 detections recorded within 20 km of this point since 15 March 2026. The last comparable one was on 18 September 2026. One more was recorded here in the fortnight before it.

What the source measured

SPC reported: Wind UNK kt near 1 SSE Crestwood, Oldham, KY. Downed tree and power lines. (LMK)

Urban PEI: 924,632 within a heuristic 50 km radius; not unique people.

Nearby, since 15 March 2026

How we know

2 recorded sources include SPC; independence is not established by this count.

Our own score for this event is 41 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 v5. Rows carrying other versions were judged by different rules and are not directly comparable.

Event Data

TypeSevere Weather
SeverityMedium
Calamity Score (ours)41 / 100
Legacy data-support index0.70/1
Coordinates38.3200, -85.4700
Nearest CityJeffersontown (16 km)
Urban exposure index (PEI)924.6K within 50 km
Impact Tiersignificant
Timestamp2026-09-19T08:02:05.524Z
Sourcehttps://www.spc.noaa.gov/climo/reports/today.html

Physical priority index · v5. 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: spc. Occurrence: 2026-09-19T08:02:05.524Z.

First archived: 2026-09-19T04:15:58.299Z. Material modification: 2026-09-19T08:06:39.262Z.

Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.

  1. 2026-09-19T08:06:39.262Z · data_change

    Index 4141; severity mediummedium; version 55.

  2. 2026-09-19T08:01:17.893Z · data_change

    Index 4141; severity mediummedium; version 55.

  3. 2026-09-19T07:50:35.547Z · data_change

    Index 4141; severity mediummedium; version 55.

  4. 2026-09-19T07:45:12.798Z · data_change

    Index 4141; severity mediummedium; version 55.

  5. 2026-09-19T07:39:51.583Z · data_change

    Index 4141; severity mediummedium; version 55.

  6. 2026-09-19T07:34:30.552Z · data_change

    Index 4141; severity mediummedium; version 55.

  7. 2026-09-19T07:29:08.379Z · data_change

    Index 4141; severity mediummedium; version 55.

  8. 2026-09-19T07:23:47.018Z · data_change

    Index 4141; severity mediummedium; version 55.

  9. 2026-09-19T07:18:27.856Z · data_change

    Index 4141; severity mediummedium; version 55.

  10. 2026-09-19T07:13:07.383Z · data_change

    Index 4141; severity mediummedium; version 55.

  11. 2026-09-19T07:02:24.770Z · data_change

    Index 4141; severity mediummedium; version 55.

  12. 2026-09-19T06:57:03.502Z · data_change

    Index 4141; severity mediummedium; version 55.

  13. 2026-09-19T06:51:43.824Z · data_change

    Index 4141; severity mediummedium; version 55.

  14. 2026-09-19T06:46:21.821Z · data_change

    Index 4141; severity mediummedium; version 55.

  15. 2026-09-19T06:41:00.702Z · data_change

    Index 4141; severity mediummedium; version 55.

  16. 2026-09-19T06:30:17.180Z · data_change

    Index 4141; severity mediummedium; version 55.

  17. 2026-09-19T06:24:54.894Z · data_change

    Index 4141; severity mediummedium; version 55.

  18. 2026-09-19T06:19:34.508Z · data_change

    Index 4141; severity mediummedium; version 55.

  19. 2026-09-19T06:14:14.330Z · data_change

    Index 4141; severity mediummedium; version 55.

  20. 2026-09-19T06:08:48.193Z · data_change

    Index 4141; severity mediummedium; version 55.

Score Breakdown

35
intensity
85
Urban PEI term
0
Scenario weight
18
Recorded reference / batch anomaly

Technical Details

ReportTypewind
SpeedUNK
Location1 SSE Crestwood
CountyOldham
StateKY
CommentsDowned tree and power lines. (LMK)
Iem TypeSummaryR
Iem Magnitude1.62
Iem UnitInch
Iem City3 SSW Simpsonville
Iem CountyShelby
Iem StateKY
Iem WfoLMK
Iem RemarkMesonet station GW7436 SIMPSONVILLE. 12 hour total.
MergedSources[{"id":"iem_R_38.740_-85.830_1789792080000","source":"iem","severity":"low","severityValue":25,"timestamp":1789792080000,"latitude":38.74,"longitude":-85.83},{"id":"iem_R_38.010_-84.980_1789791540000","source":"iem","severity":"low","severityValue":25,"timestamp":1789791540000,"latitude":38.01,"longitude":-84.98},{"id":"iem_R_38.740_-85.830_1789792680000","source":"iem","severity":"low","severityValue":25,"timestamp":1789792680000,"latitude":38.74,"longitude":-85.83},{"id":"iem_R_38.120_-85.110_1789791480000","source":"iem","severity":"low","severityValue":25,"timestamp":1789791480000,"latitude":38.12,"longitude":-85.11},{"id":"iem_R_38.100_-86.130_1789791300000","source":"iem","severity":"low","severityValue":25,"timestamp":1789791300000,"latitude":38.1,"longitude":-86.13},{"id":"iem_R_38.160_-85.380_1789791000000","source":"iem","severity":"low","severityValue":25,"timestamp":1789791000000,"latitude":38.16,"longitude":-85.38},{"id":"iem_R_38.410_-85.290_1789792500000","source":"iem","severity":"low","severityValue":25,"timestamp":1789792500000,"latitude":38.41,"longitude":-85.29},{"id":"iem_R_38.420_-86.040_1789792680000","source":"iem","severity":"low","severityValue":25,"timestamp":1789792680000,"latitude":38.42,"longitude":-86.04},{"id":"iem_R_38.690_-86.000_1789788780000","source":"iem","severity":"low","severityValue":25,"timestamp":1789788780000,"latitude":38.69,"longitude":-86},{"id":"iem_R_38.190_-85.380_1789791180000","source":"iem","severity":"low","severityValue":25,"timestamp":1789791180000,"latitude":38.19,"longitude":-85.38}]

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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