Right now
The most recent data we hold from IEM arrived 33 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.
Reported by IEM 148 days ago.
It is the 8th strongest of the 67 detections recorded within 20 km of this point since 15 March 2026. The last comparable one was on 19 April 2026. 2 more were recorded here in the fortnight before it.
What the source measured
IEM reported: All lanes of US-17 are closed at 1512 US-17 in Palatka. The roadway is being used as a staging area for emergency response vehicles for the Railroad Complex Fire. No evacuations in place at this time.
Urban PEI: 250,658 within a heuristic 50 km radius; not unique people.
Nearby, since 15 March 2026
- May 30, 2026 · score 37 · 10.4 km
- June 25, 2026 · score 52 · 13.4 km
- July 27, 2026 · score 37 · 16.9 km
How we know
2 recorded sources include IEM; independence is not established by this count.
Our own score for this event is 43 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) | 43 / 100 |
| Legacy data-support index | 0.74/1 |
| Coordinates | 29.8000, -81.6500 |
| Nearest City | St. Johns (33 km) |
| Urban exposure index (PEI) | 250.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-04-20T20:15:00.000Z |
| Source | https://mesonet.agron.iastate.edu/lsr/ |
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: iem. Occurrence: 2026-04-20T20:15:00.000Z.
First archived: 2026-04-21T08:15:36.780Z. 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
| TypeSummary | U |
| City | 2 NNW Bostwick |
| County | Putnam |
| State | FL |
| Wfo | JAX |
| Remark | All lanes of US-17 are closed at 1512 US-17 in Palatka. The roadway is being used as a staging area for emergency response vehicles for the Railroad Complex Fire. No evacuations in place at this time. |
| Google News RssFeed | weather |
| Google News SourceName | The Florida Times-Union |
| MergedSources | [{"id":"gnews_weather_493528_225","source":"google_news","severity":"medium","severityValue":40,"timestamp":1776703885000,"latitude":30.33,"longitude":-81.66}] |
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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