Right now
The most recent data we hold from NOAA arrived 23 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 3 August 2026 at 00:30 UTC. It is kept here as a record.
It is the 6th strongest of the 38 detections recorded within 20 km of this point since 16 April 2026. Another comparable one was recorded here earlier the same day. 5 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued August 2 at 5:33PM EDT until August 2 at 8:30PM EDT by NWS State College PA
Urban PEI: 29,201 within a heuristic 50 km radius; not unique people.
Nearby, since 16 April 2026
- August 2, 2026 · score 34 · 4.1 km
How we know
4 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 28 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) | 28 / 100 |
| Legacy data-support index | 0.91/1 |
| Coordinates | 41.3652, -76.7611 |
| Nearest City | Williamsport (24 km) |
| Urban exposure index (PEI) | 29.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-02T21:33:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.f75d6f7ca6c0777bfb1d5126d12537d5 |
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: 2026-08-02T21:33:00.000Z.
First archived: 2026-08-02T23:05:47.952Z. 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 | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Union, PA; Lycoming, PA; Bradford, PA and 1 more areas |
| Headline | Flash Flood Warning issued August 2 at 5:33PM EDT until August 2 at 8:30PM EDT by NWS State College PA |
| Expires | 2026-08-02T20:30:00-04:00 |
| SenderName | NWS State College PA |
| HasExactCoords | true |
| MergedCount | 4 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.f75d6f7ca6c0777bfb1d5126d12537d50a7645e4.001.1","noaa_urn:oid:2.49.0.1.840.0.f99ebb6130ba340c8ebad48644a6cfb7989d43cf.001.1","noaa_urn:oid:2.49.0.1.840.0.08b38e9dd67110d574041a828aac76107c4e78ff.001.1","noaa_urn:oid:2.49.0.1.840.0.24588da49bc62840192e3b07c2c0a6ec5baf32bc.001.1"] |
| Iem TypeSummary | F |
| Iem City | 2 SE Cogan Station |
| Iem County | Lycoming |
| Iem State | PA |
| Iem Wfo | CTP |
| Iem Remark | Water rescue reported due to car trapped on flooded roadway. |
| MergedSources | [{"id":"iem_F_41.270_-76.980_1785706800000","source":"iem","severity":"low","severityValue":25,"timestamp":1785706800000,"latitude":41.27,"longitude":-76.98},{"id":"iem_F_41.280_-77.050_1785703140000","source":"iem","severity":"low","severityValue":25,"timestamp":1785703140000,"latitude":41.28,"longitude":-77.05},{"id":"iem_F_41.290_-77.000_1785705060000","source":"iem","severity":"low","severityValue":25,"timestamp":1785705060000,"latitude":41.29,"longitude":-77}] |
Safety Information
During flooding: never walk, swim, or drive through floodwaters. Six inches of moving water can knock you down, and one foot of water can sweep away a vehicle. Move to higher ground if waters rise. After flooding, avoid contact with floodwater which may contain sewage, chemicals, or debris. Follow local emergency service guidance.
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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