Calamity
criticalSevere weatherCalamity Score: 46

Severe Weather in United States

JasperUnited StatesNOAA

This alert expired on 21 June 2026 at 22:37 UTC. It is kept here as a record.

No stronger detection stands among the 173 recorded within 20 km of this point since 16 March 2026 — 18 others scored the same. Another comparable one was recorded here earlier the same day. 23 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Tornado Warning issued June 21 at 6:27PM EDT until June 21 at 6:30PM EDT by NWS Indianapolis IN

Nearby, since 16 March 2026

How we know

Confirmed by 5 independent sources, including NOAA.

Our own score for this event is 46 out of 100, at 70 % confidence.

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

Event Data

TypeSevere weather
Severitycritical
Calamity Score (ours)46 / 100
Our confidence70%
Coordinates38.8694, -88.3156
Nearest CityMattoon (68 km)
Impact Tierminor
Timestamp2026-06-21T22:27:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Tornado Warning_noaa_urn:oid:2.49.0.1.840.0.df959a283a393ce721d6f89de0097fb8

Score Breakdown

95
intensity
0
population
0
cascading
80
historical

Technical Details

EventTornado Warning
UrgencyImmediate
CertaintyObserved
AreaDescParke, IN; Vermillion, IN; Vigo, IN; Sullivan, IN; Vigo, IN; Clay, IN; Sullivan, IN; Vigo, IN and 7 more areas
HeadlineTornado Warning issued June 21 at 6:27PM EDT until June 21 at 6:30PM EDT by NWS Indianapolis IN
Expires2026-06-21T18:37:00-04:00
SenderNameNWS Indianapolis IN
HasExactCoordstrue
MergedCount11
MergedIds["noaa_urn:oid:2.49.0.1.840.0.df959a283a393ce721d6f89de0097fb8143568c9.001.1","noaa_urn:oid:2.49.0.1.840.0.e9641b1e69437320c11c95532239b44243dcb9c7.001.1","noaa_urn:oid:2.49.0.1.840.0.ba6610243d9544dbd5bb7c6658b35ba74c3e6ad0.001.1","noaa_urn:oid:2.49.0.1.840.0.790828a4f2728986e423e2f3d8abb913c763643f.001.1","noaa_urn:oid:2.49.0.1.840.0.f7f256693488ac80070f967fab8114baf562fe92.001.1","noaa_urn:oid:2.49.0.1.840.0.d64addefc2f7ad3fd47d4236333680c4dce1f368.001.1","noaa_urn:oid:2.49.0.1.840.0.ec16833cdbb50d281581951ea5c2332ebc47f3b5.001.1","noaa_urn:oid:2.49.0.1.840.0.22f5044928ec864c1916f49fcc1e440b77aa1bd8.001.1","noaa_urn:oid:2.49.0.1.840.0.a521f176f7e04d6b0e1fe27905bf32da11dcc8ef.001.1","noaa_urn:oid:2.49.0.1.840.0.35f584790363f67a6daf1fa28e033aa35bcbe499.001.1","noaa_urn:oid:2.49.0.1.840.0.e257fcf207f2a09e99a77bc5c3cd90a60fc6ab85.001.1"]
Iem TypeSummaryT
Iem City1 SSE Newton
Iem CountyJasper
Iem StateIL
Iem WfoILX
Iem RemarkLarge TDS on radar.
MergedSources[{"id":"iem_T_38.840_-88.380_1782074820000","source":"iem","severity":"low","severityValue":25,"timestamp":1782074820000,"latitude":38.84,"longitude":-88.38},{"id":"iem_T_38.770_-88.500_1782074040000","source":"iem","severity":"low","severityValue":25,"timestamp":1782074040000,"latitude":38.77,"longitude":-88.5},{"id":"iem_C_38.680_-88.630_1782073200000","source":"iem","severity":"low","severityValue":25,"timestamp":1782073200000,"latitude":38.68,"longitude":-88.63},{"id":"iem_T_38.980_-88.150_1782076440000","source":"iem","severity":"low","severityValue":25,"timestamp":1782076440000,"latitude":38.98,"longitude":-88.15}]

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 10 February 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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Calamity.live data shows a weather event with CalamityScore 46/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.