Alert archive / Illinois / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 160, NWS Quad Cities, IA

June 10, 2026Putnam County, Illinois

NWS Quad Cities, IA issued this severe thunderstorm warning at Jun 10, 2026, 2:38 PM CDT for Putnam County, Illinois. It was in force for 22 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 10, 2026, 2:38 PM CDT (19:38 UTC)
Expired: Jun 10, 2026, 3:00 PM CDT
In force: 22 min
Issued by: NWS Quad Cities, IA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Putnam County, IL

The radar

The Chicago radar (KLOT), 110 km from the middle of the area, began a volume at 19:36 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 10, 12:00 PM CDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 7.6 hours before the alert went out and 131 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1372 J/kg
Mixed-layer CIN: -173 J/kg
Mixed-layer LCL: 1070 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 26 m²/s²
0-3 km storm-relative helicity: -58 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Quad Cities, IA wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 10, 12:55 PM CDT, 1 hour 43 minutes earlier.

Area forecast discussion, Jun 10, 12:55 PM CDT, 1 hour 43 minutes before

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Hazardous weather outlook, Jun 10, 3:42 AM CDT, 10 hours 56 minutes before

Hazardous Weather Outlook
National Weather Service Quad Cities IA IL
342 AM CDT Wed Jun 10 2026

IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-110845-
Buchanan-Delaware-Dubuque-Benton-Linn-Jones-Jackson-Iowa-Johnson-
Cedar-Clinton-Muscatine-Scott-Keokuk-Washington-Louisa-Jefferson-
Henry IA-Des Moines-Van Buren-Lee-Jo Daviess-Stephenson-Carroll-
Whiteside-Rock Island-Henry IL-Bureau-Putnam-Mercer-Henderson-
Warren-Hancock-McDonough-Scotland-Clark-
342 AM CDT Wed Jun 10 2026

This Hazardous Weather Outlook is for portions of north central
Illinois...northwest Illinois...west central Illinois...east
central Iowa...northeast Iowa...southeast Iowa and northeast
Missouri.

.DAY ONE...TODAY AND TONIGHT

Severe storms will be seen today into this evening. The Storm
Prediction Center has an Enhanced, level 3 out of 5, risk for
severe storms today.

Two rounds of storms are expected today; the first from 10 AM to 4
PM and the second from 4 to 10 PM. There may only be a few hours
between each round of storms at any location.

Initial storm development of discrete storms will be seen over the
area with each round. Very large hail and tornadoes are the
primary risks during this phase.

The individual storms will grow upscale into a line. Damaging
winds and spin-up tornadoes will be possible with the lines.
Information suggests very damaging winds of 70 to 80 plus mph are
possible in the strongest storms.

Heavy rainfall will be seen with the rounds of storms that may
result in localized flooding.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

On Thursday, two more rounds of storms will be seen across the
area; the first in the morning and the second in the afternoon and
evening. The Storm Prediction Center has an Enhanced, level 3 out
of 5, risk for the area.

Very large hail and tornadoes will be the primary risks during the
initial storm development. The individual storms will grow
upscale into lines that will transition the severe risks to
damaging winds and spin-up tornadoes. Information suggests there
may be very damaging winds of 70 to 80 plus mph in the strongest
storms.

The tornado risk on Thursday may be higher due to a strong low
moving through the area.

Heavy rainfall will again be a risk with the storms on Thursday.
With the ground primed from heavy rain on Wednesday, a flash flood
risk will exist for Thursday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will be needed today and Thursday.

In the hours before

Local storm report, Jun 10, 2:05 PM CDT, 33 minutes before

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Local storm report, Jun 10, 2:12 PM CDT, 26 minutes before

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Local storm report, Jun 10, 2:14 PM CDT, 24 minutes before

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Local storm report, Jun 10, 2:15 PM CDT, 23 minutes before

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Local storm report, Jun 10, 2:22 PM CDT, 16 minutes before

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Local storm report, Jun 10, 2:24 PM CDT, 14 minutes before

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The office that day

Everything else NWS Quad Cities, IA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 10, 9:14 AM CDT	River Flood Warning	DVN	Clinton, Scott	14 days
Jun 10, 10:58 AM CDT	Flood Watch	DVN	Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more	32 hr
Jun 10, 11:15 AM CDT	Severe Thunderstorm Warning	DVN	Benton	60 min
Jun 10, 11:26 AM CDT	Severe Thunderstorm Warning	DVN	Cedar, Clinton, Johnson, Louisa, Muscatine, Scott	64 min
Jun 10, 11:36 AM CDT	Severe Thunderstorm Warning	DVN	Buchanan, Linn	54 min
Jun 10, 11:38 AM CDT	Severe Thunderstorm Warning	DVN	Benton, Cedar, Johnson, Jones, Linn	67 min
Jun 10, 12:07 PM CDT	Severe Thunderstorm Warning	DVN	Clinton, Dubuque, Jackson	68 min
Jun 10, 12:26 PM CDT	Severe Thunderstorm Warning	DVN	Delaware, Dubuque	45 min
Jun 10, 5:19 PM CDT	Severe Thunderstorm Warning	DVN	Henry, Jefferson, Keokuk, Louisa, Muscatine, Washington	56 min
Jun 10, 5:30 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Johnson, Muscatine, Scott, Washington	60 min
Jun 10, 5:37 PM CDT	Severe Thunderstorm Warning	DVN	Henry, Jefferson, Van Buren	68 min
Jun 10, 5:41 PM CDT	Tornado Warning	DVN	Van Buren	52 min
Jun 10, 5:53 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Louisa, Muscatine	52 min
Jun 10, 6:03 PM CDT	Tornado Warning	DVN	Cedar, Muscatine, Scott	33 min
Jun 10, 6:17 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Clinton, Scott	58 min
Jun 10, 6:23 PM CDT	Severe Thunderstorm Warning Destructive damage threat	DVN	Clinton, Scott	52 min
Jun 10, 12:35 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DVN	Carroll, Jo Daviess, Stephenson	55 min
Jun 10, 12:44 PM CDT	Severe Thunderstorm Warning	DVN	Carroll, Jo Daviess, Stephenson, Whiteside	76 min
Jun 10, 12:51 PM CDT	Severe Thunderstorm Warning Destructive damage threat	DVN	Carroll, Jo Daviess, Stephenson	54 min
Jun 10, 6:41 PM CDT	Tornado Warning	DVN	Bureau, Henry, Whiteside	49 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2026 Every severe thunderstorm warning in 2026

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.