Calamity
Live Map
MediumSevere WeatherCS: 46 · v5

Severe Weather near Storrs

TollandUnited StatesNOAA

Right now

The most recent data we hold from NOAA arrived 60 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 27 September 2026 at 10:00 UTC. It is kept here as a record.

It is the only one we have recorded within 20 km of this point since 17 March 2026. The last comparable one was on 13 August 2026.

What the source measured

NOAA reported: Storm Warning issued September 26 at 2:21PM EDT until September 27 at 12:00PM EDT by NWS Upton NY

Urban PEI: 1,259,993 within a heuristic 50 km radius; not unique people.

Nearby, since 17 March 2026

How we know

One source: NOAA. Not yet confirmed by a second, independent source.

Our own score for this event is 46 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)46 / 100
Legacy data-support index0.80/1
Coordinates41.8000, -72.3000
Nearest CityStorrs (4 km)
Urban exposure index (PEI)1.3M within 50 km
Impact Tiersignificant
Timestamp2026-09-26T18:21:00.000Z
Sourcehttps://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.b6fa79156ac6166c77a74bd1add9d817c2de4fcd.001.2

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: noaa. Occurrence: 2026-09-26T18:21:00.000Z.

First archived: 2026-09-26T18:26:04.264Z. Material modification: not recorded.

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

  1. 2026-09-27T05:06:32.656Z · data_change

    Index 46 → 46; severity medium → medium; version 5 → 5.

  2. 2026-09-27T03:52:01.006Z · data_change

    Index 46 → 46; severity medium → medium; version 5 → 5.

  3. 2026-09-27T03:20:10.721Z · data_change

    Index 46 → 46; severity medium → medium; version 5 → 5.

  4. 2026-09-27T02:58:59.781Z · data_change

    Index 46 → 46; severity medium → medium; version 5 → 5.

  5. 2026-09-27T02:53:43.804Z · data_change

    Index 46 → 46; severity medium → medium; version 5 → 5.

  6. 2026-09-27T02:48:14.389Z · data_change

    Index 46 → 46; severity medium → medium; version 5 → 5.

  7. 2026-09-27T02:16:33.563Z · data_change

    Index 46 → 46; severity medium → medium; version 5 → 5.

  8. 2026-09-27T01:44:50.901Z · data_change

    Index 46 → 46; severity medium → medium; version 5 → 5.

  9. 2026-09-27T00:14:44.155Z · data_change

    Index 46 → 46; severity medium → medium; version 5 → 5.

  10. 2026-09-27T00:04:03.778Z · data_change

    Index 46 → 46; severity medium → medium; version 5 → 5.

  11. 2026-09-26T23:42:18.436Z · data_change

    Index 46 → 46; severity medium → medium; version 5 → 5.

  12. 2026-09-26T23:31:28.900Z · data_change

    Index 46 → 46; severity medium → medium; version 5 → 5.

  13. 2026-09-26T23:04:25.584Z · data_change

    Index 46 → 46; severity medium → medium; version 5 → 5.

  14. 2026-09-26T22:48:06.191Z · data_change

    Index 46 → 46; severity medium → medium; version 5 → 5.

  15. 2026-09-26T22:42:37.637Z · data_change

    Index 46 → 46; severity medium → medium; version 5 → 5.

  16. 2026-09-26T21:53:37.595Z · data_change

    Index 46 → 46; severity medium → medium; version 5 → 5.

  17. 2026-09-26T21:48:10.133Z · data_change

    Index 46 → 46; severity medium → medium; version 5 → 5.

  18. 2026-09-26T21:15:36.531Z · data_change

    Index 46 → 46; severity medium → medium; version 5 → 5.

  19. 2026-09-26T20:42:42.590Z · data_change

    Index 46 → 46; severity medium → medium; version 5 → 5.

  20. 2026-09-26T20:10:03.458Z · data_change

    Index 46 → 46; severity medium → medium; version 5 → 5.

Score Breakdown

35
intensity
100
Urban PEI term
0
Scenario weight
18
Recorded reference / batch anomaly

Technical Details

EventStorm Warning
MessageIdurn:oid:2.49.0.1.840.0.b6fa79156ac6166c77a74bd1add9d817c2de4fcd.001.2
UrgencyImmediate
CertaintyObserved
AreaDescLong Island Sound East of New Haven CT/Port Jefferson NY to the Mouth of the Connecticut River; Long Island Sound East of the Mouth of the Connecticut River; Peconic and Gardiners Bays; South Shore Bays from Jones Inlet through Shinnecock Bay; Long Island Sound West of New Haven CT/Port Jefferson NY; Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM; Ocean Waters from Provincetown to Nantucket from 20 to 60 NM
HeadlineStorm Warning issued September 26 at 2:21PM EDT until September 27 at 12:00PM EDT by NWS Upton NY
Expires2026-09-27T06:00:00-04:00
SenderNameNWS Upton NY
HasExactCoordsfalse
MergedCount3
MergedIds["noaa_urn:oid:2.49.0.1.840.0.b6fa79156ac6166c77a74bd1add9d817c2de4fcd.001.2","noaa_urn:oid:2.49.0.1.840.0.b6fa79156ac6166c77a74bd1add9d817c2de4fcd.002.2","noaa_urn:oid:2.49.0.1.840.0.761cd7d3a4f528f0aace12609fb0482d80f9f41d.005.1"]
Iem TypeSummaryWind damage
Iem LsrCodeO
Iem LsrTypeNON-TSTM WND DMG
Iem City1 NNE Willington
Iem CountyTolland
Iem StateCT
Iem WfoBOX
Iem RemarkIn Willington, a tree and wires were down on Rt 320. Relayed by amateur radio.
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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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