Calamity
HighSevere WeatherCalamity Score: 40

Severe Weather in United States

ShawanoUnited StatesSPC

Right now

The most recent data we hold from SPC 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.

Reported by SPC 8 days ago.

It is the 3rd strongest of the 67 detections recorded within 20 km of this point since 15 March 2026. The last comparable one was on 12 August 2026.

What the source measured

SPC reported: Hail 125 in near 1 SW Shawano, Shawano, WI. Report from mPING: Half Dollar (1.25 in.). (GRB)

An estimated 19,250 people live within 50 km of this point.

Nearby, since 15 March 2026

How we know

Confirmed by 2 independent sources, including SPC.

Our own score for this event is 40 out of 100, at 80 % confidence.

The score is ours, computed from intensity, exposed population and local history — not the source’s.

Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.

Event Data

TypeSevere Weather
SeverityHigh
Calamity Score (ours)40 / 100
Our confidence80%
Coordinates44.7700, -88.6100
Nearest CityHoward (48 km)
Population Exposed19.3K within 50 km
Impact Tiersignificant
Timestamp2026-09-04T05:31:00.000Z
Sourcehttps://www.spc.noaa.gov/climo/reports/today.html

Score Breakdown

50
intensity
40
population
0
cascading
80
historical

Technical Details

ReportTypehail
Speed125
Location1 SW Shawano
CountyShawano
StateWI
CommentsReport from mPING: Half Dollar (1.25 in.). (GRB)
Iem TypeSummaryD
Iem City1 WSW Polonia
Iem CountyPortage
Iem StateWI
Iem WfoGRB
Iem RemarkTrees down.
MergedSources[{"id":"iem_H_44.770_-88.610_1788499860000","source":"iem","severity":"low","severityValue":25,"timestamp":1788499860000,"latitude":44.77,"longitude":-88.61},{"id":"iem_R_44.340_-89.110_1788505020000","source":"iem","severity":"low","severityValue":25,"timestamp":1788505020000,"latitude":44.34,"longitude":-89.11},{"id":"iem_D_44.550_-89.430_1788501120000","source":"iem","severity":"low","severityValue":25,"timestamp":1788501120000,"latitude":44.55,"longitude":-89.43}]

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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