Alert archive / Illinois / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 46, NWS Quad Cities, IA

June 12, 2022Henry County, Illinois

NWS Quad Cities, IA issued this severe thunderstorm warning at Jun 12, 2022, 1:13 AM CDT for Henry County, Illinois. It was in force for 47 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 12, 2022, 1:13 AM CDT (06:13 UTC)
Expired: Jun 12, 2022, 2:00 AM CDT
In force: 47 min
Issued by: NWS Quad Cities, IA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Henry County, IL

The radar

The Quad Cities radar (KDVN), 47 km from the middle of the area, began a volume at 06:17 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 nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 6.2 hours before the alert went out and 43 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: 4 J/kg
Mixed-layer CIN: -93 J/kg
Mixed-layer LCL: 1325 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 87 m²/s²
0-3 km storm-relative helicity: 135 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.3

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 12, 12:54 AM CDT, 19 minutes earlier.

Area forecast discussion, Jun 12, 12:54 AM CDT, 19 minutes before

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Hazardous weather outlook, Jun 11, 3:35 AM CDT, 21 hours 38 minutes before

Hazardous Weather Outlook
National Weather Service Quad Cities IA IL
335 AM CDT Sat Jun 11 2022

IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-120845-
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-
335 AM CDT Sat Jun 11 2022

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

Patchy dense fog early this morning will reduce visibilities to
one-quarter mile or less at times posing a travel hazard. The fog
should clear before mid-morning.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

Temperatures early this week, Monday through Wednesday, will
likely reach the highest readings we have seen so far this season,
and perhaps higher than we have experienced for several years.

The current forecast for the Quad Cities on Tuesday is 100
degrees, and upper 90s will be widespread across the area each day.
Multiple days of extreme heat will especially prove stressful
with nighttime temperatures remaining well in the 70s.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated.

wolf

In the hours before

Special weather statement, Jun 11, 8:59 PM CDT, 4 hours 14 minutes before

Special Weather Statement
National Weather Service Quad Cities IA/IL
859 PM CDT Sat Jun 11 2022

IAZ040-120300-
Buchanan IA-
859 PM CDT Sat Jun 11 2022

...Heavy rain from thunderstorms will impact portions of Buchanan
County through 1000 PM CDT...

At 855 PM CDT, Doppler radar was tracking heavy rain producing
thunderstorms along a line extending from 6 miles southwest of
Fairbank to Troy Mills. These storms were nearly stationary.  Up to
one inch of rain has fallen and another inch is possible

HAZARD...Minor flooding of area roads, low-lying areas and small
         creeks.

SOURCE...Radar indicated.

IMPACT...Ponding of water on area roads, sidewalks, and the
         potential for hydroplaning.

Locations impacted include...
Independence, Jesup, Fairbank, Winthrop, Quasqueton, Rowley,
Wapsipinicon Golf Course, Fontana County Park, Littleton, Monti,
Buchanan County Fairgrounds, Otterville, Independence Airport and
Fontana Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is occurring with these storms and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 4241 9160 4230 9160 4230 9183 4241 9207
      4247 9206 4247 9208 4264 9208 4264 9197
TIME...MOT...LOC 0155Z 250DEG 1KT 4257 9212 4229 9165

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...<30 MPH

Gibbs

Special weather statement, Jun 11, 9:35 PM CDT, 3 hours 38 minutes before

Special Weather Statement
National Weather Service Quad Cities IA/IL
935 PM CDT Sat Jun 11 2022

IAZ040-051-120300-
Buchanan IA-Benton IA-
935 PM CDT Sat Jun 11 2022

...A strong thunderstorm will impact portions of southwestern
Buchanan and northeastern Benton Counties through 1000 PM CDT...

At 934 PM CDT, Doppler radar was tracking a strong thunderstorm near
Independence, moving southeast at 25 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

This strong thunderstorm will be near...
  Independence around 940 PM CDT.

Other locations in the path of this storm include Rowley and
Quasqueton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 4239 9173 4229 9186 4246 9207 4246 9206
      4252 9199
TIME...MOT...LOC 0234Z 308DEG 23KT 4245 9198

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

Gibbs

Special weather statement, Jun 11, 10:14 PM CDT, 2 hours 59 minutes before

Special Weather Statement
National Weather Service Quad Cities IA/IL
1014 PM CDT Sat Jun 11 2022

IAZ040-041-052-053-120415-
Linn IA-Buchanan IA-Delaware IA-Jones IA-
1014 PM CDT Sat Jun 11 2022

...Strong thunderstorms will impact portions of Buchanan,
northwestern Cedar, southwestern Jones, southwestern Delaware and
northeastern Linn Counties through 1115 PM CDT...

At 1014 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Fairbank to Olin. Movement was northeast
at 5 mph.

HAZARD...Winds in excess of 30 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Strong thunderstorms will be near...
  Olin and Morley around 1020 PM CDT.

Other locations in the path of these storms include Wyoming, Oxford
Junction, Stanley and Center Junction.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

Persons in campgrounds should consider seeking sturdy shelter until
these storms pass.

&&

LAT...LON 4264 9176 4201 9092 4194 9104 4195 9136
      4252 9208 4264 9208
TIME...MOT...LOC 0314Z 238DEG 4KT 4264 9200 4200 9112

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...30 MPH

Gibbs

Special weather statement, Jun 11, 11:47 PM CDT, 1 hour 26 minutes before

Special Weather Statement
National Weather Service Quad Cities IA/IL
1147 PM CDT Sat Jun 11 2022

IAZ065>068-ILZ015-120530-
Rock Island IL-Scott IA-Clinton IA-Muscatine IA-Cedar IA-
1147 PM CDT Sat Jun 11 2022

...A strong thunderstorm will impact portions of central Rock Island,
east central Cedar, Scott, northeastern Muscatine and southwestern
Clinton Counties through 1230 AM CDT...

At 1146 PM CDT, Doppler radar was tracking a strong thunderstorm over
Wheatland, or 13 miles north of Durant, moving southeast at 30 mph.

HAZARD...Winds in excess of 40 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

This strong thunderstorm will be near...
  Calamus around 1150 PM CDT.

Other locations in the path of this storm include Donahue, Walcott,
Long Grove, Davenport, Eldridge and Bettendorf.

This includes the following highways...
 Interstate 74 in Iowa near mile marker 1.
 Interstate 80 in Iowa between mile markers 281 and 299.
 Interstate 280 between mile markers 1 and 10.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 4177 9101 4190 9087 4167 9041 4146 9065
TIME...MOT...LOC 0446Z 310DEG 28KT 4179 9086

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

Gunkel

Local storm report, Jun 12, 12:13 AM CDT, 1 hour before

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Special weather statement, Jun 12, 12:39 AM CDT, 34 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 11, 8:59 PM CDT	Special Weather Statement	DVN	Buchanan	61 min
Jun 11, 9:35 PM CDT	Special Weather Statement	DVN	Buchanan	25 min
Jun 11, 9:37 PM CDT	Tornado Warning	DVN	Buchanan	23 min
Jun 11, 10:01 PM CDT	Flash Flood Warning	DVN	Buchanan	6 hr
Jun 11, 10:14 PM CDT	Special Weather Statement	DVN	Buchanan, Jones	61 min
Jun 11, 11:47 PM CDT	Special Weather Statement	DVN	Scott	43 min
Jun 11, 11:52 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Clinton, Scott	23 min
Jun 12, 12:09 AM CDT	Severe Thunderstorm Warning	DVN	Scott	36 min
Jun 12, 2:40 PM CDT	Heat Advisory	DVN	Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more	3 days
Jun 12, 12:39 AM CDT	Special Weather Statement	DVN	Henry, Rock Island	51 min
Jun 12, 3:51 AM CDT	Dense Fog Advisory	DVN	Jo Daviess, Stephenson	5 hr
Jun 12, 7:16 AM CDT	Special Weather Statement	DVN	Warren	29 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2022 Every severe thunderstorm warning in 2022

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.