Right now
The most recent data we hold from NOAA arrived 10 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 5 July 2026 at 01:00 UTC. It is kept here as a record.
It is the 9th strongest of the 26 detections recorded within 20 km of this point since 3 April 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: Flash Flood Warning issued July 4 at 5:01PM CDT until July 4 at 8:00PM CDT by NWS Quad Cities IA IL
Urban PEI: 70,748 within a heuristic 50 km radius; not unique people.
Nearby, since 3 April 2026
- July 4, 2026 · score 43 · 11.3 km
- August 12, 2026 · score 67 · 11.7 km
- August 12, 2026 · score 43 · 15.5 km
How we know
32 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 39 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) | 39 / 100 |
| Legacy data-support index | 0.89/1 |
| Coordinates | 41.4706, -88.8599 |
| Nearest City | Ottawa (14 km) |
| Urban exposure index (PEI) | 70.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-04T22:01:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.7be2e8f7a88b2985e602b2e4047398b4 |
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: 2026-07-04T22:01:00.000Z.
First archived: 2026-07-05T00:34:15.011Z. 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 | Bureau, IL; Putnam, IL; Kendall, IL |
| Headline | Flash Flood Warning issued July 4 at 5:01PM CDT until July 4 at 8:00PM CDT by NWS Quad Cities IA IL |
| Expires | 2026-07-04T20:00:00-05:00 |
| SenderName | NWS Quad Cities IA IL |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.7be2e8f7a88b2985e602b2e4047398b46bd48ae6.001.1","noaa_urn:oid:2.49.0.1.840.0.4ea7509782665b41e73e1a6781706dc7ac2a512a.002.1"] |
| Iem TypeSummary | D |
| Iem City | 2 SSE Plainfield |
| Iem County | Will |
| Iem State | IL |
| Iem Wfo | LOT |
| Iem Remark | Estimated 50 to 60 mph winds with damage to trees reported. Time estimated by radar. |
| MergedSources | [{"id":"iem_R_41.770_-88.770_1783198260000","source":"iem","severity":"low","severityValue":25,"timestamp":1783198260000,"latitude":41.77,"longitude":-88.77},{"id":"iem_F_41.780_-88.280_1783201500000","source":"iem","severity":"low","severityValue":25,"timestamp":1783201500000,"latitude":41.78,"longitude":-88.28},{"id":"iem_F_41.750_-88.040_1783203300000","source":"iem","severity":"low","severityValue":25,"timestamp":1783203300000,"latitude":41.75,"longitude":-88.04},{"id":"iem_E_41.750_-88.100_1783201800000","source":"iem","severity":"low","severityValue":25,"timestamp":1783201800000,"latitude":41.75,"longitude":-88.1},{"id":"iem_D_41.600_-88.550_1783195440000","source":"iem","severity":"low","severityValue":25,"timestamp":1783195440000,"latitude":41.6,"longitude":-88.55},{"id":"iem_F_41.640_-88.440_1783203300000","source":"iem","severity":"low","severityValue":25,"timestamp":1783203300000,"latitude":41.64,"longitude":-88.44},{"id":"iem_F_41.580_-88.260_1783202400000","source":"iem","severity":"low","severityValue":25,"timestamp":1783202400000,"latitude":41.58,"longitude":-88.26},{"id":"iem_G_41.820_-88.270_1783199040000","source":"iem","severity":"low","severityValue":25,"timestamp":1783199040000,"latitude":41.82,"longitude":-88.27},{"id":"iem_F_42.010_-88.330_1783200600000","source":"iem","severity":"low","severityValue":25,"timestamp":1783200600000,"latitude":42.01,"longitude":-88.33},{"id":"iem_R_41.570_-89.350_1783194240000","source":"iem","severity":"low","severityValue":25,"timestamp":1783194240000,"latitude":41.57,"longitude":-89.35},{"id":"iem_F_41.760_-88.140_1783201500000","source":"iem","severity":"low","severityValue":25,"timestamp":1783201500000,"latitude":41.76,"longitude":-88.14},{"id":"iem_F_41.730_-88.100_1783204680000","source":"iem","severity":"low","severityValue":25,"timestamp":1783204680000,"latitude":41.73,"longitude":-88.1},{"id":"iem_G_40.880_-88.630_1783198740000","source":"iem","severity":"low","severityValue":25,"timestamp":1783198740000,"latitude":40.88,"longitude":-88.63},{"id":"iem_F_41.730_-88.120_1783206000000","source":"iem","severity":"low","severityValue":25,"timestamp":1783206000000,"latitude":41.73,"longitude":-88.12},{"id":"iem_F_41.740_-88.100_1783205100000","source":"iem","severity":"low","severityValue":25,"timestamp":1783205100000,"latitude":41.74,"longitude":-88.1},{"id":"iem_G_41.470_-88.060_1783197900000","source":"iem","severity":"low","severityValue":25,"timestamp":1783197900000,"latitude":41.47,"longitude":-88.06},{"id":"iem_F_41.330_-89.200_1783195080000","source":"iem","severity":"low","severityValue":25,"timestamp":1783195080000,"latitude":41.33,"longitude":-89.2},{"id":"iem_F_41.730_-88.120_1783206600000","source":"iem","severity":"low","severityValue":25,"timestamp":1783206600000,"latitude":41.73,"longitude":-88.12},{"id":"iem_F_41.730_-88.120_1783204800000","source":"iem","severity":"low","severityValue":25,"timestamp":1783204800000,"latitude":41.73,"longitude":-88.12},{"id":"iem_F_41.810_-88.320_1783205400000","source":"iem","severity":"low","severityValue":25,"timestamp":1783205400000,"latitude":41.81,"longitude":-88.32},{"id":"iem_F_41.740_-88.500_1783198620000","source":"iem","severity":"low","severityValue":25,"timestamp":1783198620000,"latitude":41.74,"longitude":-88.5},{"id":"iem_F_41.510_-88.080_1783204800000","source":"iem","severity":"low","severityValue":25,"timestamp":1783204800000,"latitude":41.51,"longitude":-88.08},{"id":"iem_F_41.760_-88.520_1783205100000","source":"iem","severity":"low","severityValue":25,"timestamp":1783205100000,"latitude":41.76,"longitude":-88.52},{"id":"iem_F_41.760_-88.150_1783204200000","source":"iem","severity":"low","severityValue":25,"timestamp":1783204200000,"latitude":41.76,"longitude":-88.15},{"id":"iem_F_41.730_-88.120_1783205100000","source":"iem","severity":"low","severityValue":25,"timestamp":1783205100000,"latitude":41.73,"longitude":-88.12},{"id":"iem_F_41.780_-88.210_1783202400000","source":"iem","severity":"low","severityValue":25,"timestamp":1783202400000,"latitude":41.78,"longitude":-88.21},{"id":"iem_D_41.590_-88.540_1783195260000","source":"iem","severity":"low","severityValue":25,"timestamp":1783195260000,"latitude":41.59,"longitude":-88.54},{"id":"iem_F_41.760_-88.530_1783201980000","source":"iem","severity":"low","severityValue":25,"timestamp":1783201980000,"latitude":41.76,"longitude":-88.53},{"id":"iem_G_41.560_-88.210_1783197600000","source":"iem","severity":"low","severityValue":25,"timestamp":1783197600000,"latitude":41.56,"longitude":-88.21},{"id":"iem_R_41.770_-88.760_1783198800000","source":"iem","severity":"low","severityValue":25,"timestamp":1783198800000,"latitude":41.77,"longitude":-88.76},{"id":"iem_D_41.580_-88.190_1783197480000","source":"iem","severity":"low","severityValue":25,"timestamp":1783197480000,"latitude":41.58,"longitude":-88.19}] |
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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