Right now
The most recent data we hold from NOAA arrived 1 minute 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 22 July 2026 at 01:00 UTC. It is kept here as a record.
It is the 2nd strongest of the 99 detections recorded within 20 km of this point since 12 March 2026. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Watch issued July 21 at 5:31PM EDT until July 21 at 9:00PM EDT by NWS Albany NY
Urban PEI: 1,682,010 within a heuristic 50 km radius; not unique people.
Nearby, since 12 March 2026
- September 16, 2026 · score 58 · 0.0 km
- August 28, 2026 · score 58 · 0.0 km
- August 27, 2026 · score 58 · 0.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 59 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) | 59 / 100 |
| Legacy data-support index | 0.80/1 |
| Coordinates | 41.6000, -72.7000 |
| Nearest City | Middletown (6 km) |
| Urban exposure index (PEI) | 1.7M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-21T21:31:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Tornado Watch_noaa_urn:oid:2.49.0.1.840.0.ffc6e4a93c5008202571bd7e46702fc6 |
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: 2026-07-21T21:31:00.000Z.
First archived: 2026-07-21T23:25:12.828Z. 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 | Tornado Watch |
| Urgency | Future |
| Certainty | Possible |
| AreaDesc | Litchfield, CT; Fairfield, CT; New Haven, CT; Bergen, NJ; Essex, NJ; Hudson, NJ; Passaic, NJ; Union, NJ; Bronx, NY; Kings, NY; Nassau, NY; New York, NY; Orange, NY; Putnam, NY; Queens, NY; Richmond, NY; Rockland, NY; Westchester, NY; Long Island Sound West of New Haven CT/Port Jefferson NY; New York Harbor |
| Headline | Tornado Watch issued July 21 at 5:31PM EDT until July 21 at 9:00PM EDT by NWS Albany NY |
| Expires | 2026-07-21T21:00:00-04:00 |
| SenderName | NWS Albany NY |
| HasExactCoords | false |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.ffc6e4a93c5008202571bd7e46702fc678e68001.002.1","noaa_urn:oid:2.49.0.1.840.0.c2bbec4ec42cffa7f84c1a5766c17eb64f256bcf.001.1","noaa_urn:oid:2.49.0.1.840.0.c2bbec4ec42cffa7f84c1a5766c17eb64f256bcf.002.1"] |
Safety Information
If a tornado warning is issued: go to a basement or an interior room on the lowest floor, away from windows. A vehicle and a mobile home are not shelter. Cover your head and neck. Wait for the official all-clear before going outside, and watch for downed power lines and gas leaks afterwards.
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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