Alert archive / Indiana / Tornado Warnings in 2026
Tornado Warning 41, NWS Chicago, IL
NWS Chicago, IL issued this tornado warning at Jun 11, 2026, 7:40 PM CDT for Ford County, Illinois; Benton County, Jasper County, Newton County, Indiana. It was in force for 65 min. 16 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jun 11, 2026, 7:40 PM CDT (00:40 UTC)
- Expired
- Jun 11, 2026, 8:45 PM CDT
- In force
- 65 min
- Issued by
- NWS Chicago, IL
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.0 in
Counties Ford County, IL, Benton County, IN, Jasper County, IN, Newton County, IN
The radar
The Chicago radar (KLOT), 115 km from the middle of the area, began a volume at 00:39 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 11, 7:57 PM CDT | TSTM WND DMG | 2 Sw Kentland, IN | Public report of damage to trees and outbuildings southwest of Kentland. Time estimated by radar. |
| Jun 11, 7:57 PM CDT | TSTM WND DMG | 2 Sw Kentland, IN | Public report of damage to trees and outbuildings southwest of Kentland. Time estimated by radar. |
| Jun 11, 7:58 PM CDT | TORNADO | 2 Sw Boswell, IN | NWS survey confirms a preliminary EF-1 tornado. Peak winds of 95 mph, width of 250 yards, and length of 4.9 miles. |
| Jun 11, 7:58 PM CDT | TORNADO | 2 Sw Boswell, IN | Updates previous tornado report from 2 SW Boswell. NWS survey confirms a preliminary EF-1 tornado. Peak winds of 95 mph, width of 250 yards, and length of 12.3 miles. |
| Jun 11, 7:58 PM CDT | TORNADO | 3 Wsw Morocco, IN | NWS storm survey confirmed that an EF-0 tornado with peak winds estimated around 85 mph occurred near Morocco, IN. |
| Jun 11, 7:58 PM CDT | TORNADO | 5 Nnw Kentland, IN | NWS storm survey confirms a preliminary EF-0 tornado. Peak winds of 85 mph, width of 200 yards, and length of 15.6 miles. |
| Jun 11, 8:00 PM CDT | TSTM WND GST 69 | 4 Wnw Kentland, IN | Private weather station KINKENTL6 reported 69 mph wind gust just prior to gauge outage. |
| Jun 11, 8:00 PM CDT | TSTM WND GST 69 | 4 Wnw Kentland, IN | Private weather station KINKENTL6 reported 69 mph wind gust just prior to gauge outage. |
| Jun 11, 8:05 PM CDT | TSTM WND GST 85 | 2 Wnw Brook, IN | Peak gust measured on personal weather station. |
| Jun 11, 8:05 PM CDT | TSTM WND GST 85 | 2 Wnw Brook, IN | Peak gust measured on personal weather station. |
| Jun 11, 8:07 PM CDT | TSTM WND GST 75 | Fowler, IN | Power lines also downed just west of Fowler. |
| Jun 11, 8:07 PM CDT | TSTM WND GST 75 | Fowler, IN | Power lines also downed just west of Fowler. |
| Jun 11, 8:15 PM CDT | TSTM WND GST 55 | 2 Wnw Rensselaer, IN | Jasper County Airport AWOS KRZL reported 55 mph gust. |
| Jun 11, 8:15 PM CDT | TSTM WND GST 55 | 2 Wnw Rensselaer, IN | Jasper County Airport AWOS KRZL reported 55 mph gust. |
| Jun 11, 8:24 PM CDT | TSTM WND GST 65 | 4 Ese Oxford, IN | Peak gust measured on personal weather station before data stopped being reported. |
| Jun 11, 8:24 PM CDT | TSTM WND GST 65 | 4 Ese Oxford, IN | Peak gust measured on personal weather station before data stopped being reported. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
Did it verify
Verified. The Iowa Environmental Mesonet's Cow matched 4 storm reports to this tornado warning; the first came 18 minutes after it went out.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
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 11, 1:57 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 0.7 hours before the alert went out and 280 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.
- Mixed-layer CAPE
- 9 J/kg
- Mixed-layer CIN
- -418 J/kg
- Mixed-layer LCL
- 893 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- -130 m²/s²
- 0-3 km storm-relative helicity
- -57 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -1.5
The text
As transmitted.
059
WFUS53 KLOT 120040
TORLOT
ILC053-INC007-073-111-120145-
/O.NEW.KLOT.TO.W.0041.260612T0040Z-260612T0145Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Chicago/Romeoville
740 PM CDT Thu Jun 11 2026
The National Weather Service in Chicago has issued a
* Tornado Warning for...
Southeastern Ford County in east central Illinois...
Newton County in northwestern Indiana...
Benton County in northwestern Indiana...
Jasper County in northwestern Indiana...
* Until 845 PM CDT/945 PM EDT/.
* At 739 PM CDT/839 PM EDT/, severe thunderstorms capable of
producing a tornado were located along a line extending from
Chebanse to near Ashkum to 6 miles southwest of Watseka to near
Cissna Park to near Rankin, moving east at 60 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* These dangerous storms will be near...
Kentland and Morocco around 755 PM CDT.
Earl Park around 855 PM EDT.
Other locations in the path of these tornadic storms include
Goodland, Brook, Fowler, Boswell, Rensselaer, Remington and Hanging
Grove.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
This line of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.
&&
LAT...LON 4091 8699 4084 8699 4084 8710 4048 8709
4048 8793 4040 8793 4040 8801 4049 8801
4049 8753 4106 8753 4113 8693 4091 8693
TIME...MOT...LOC 0039Z 256DEG 55KT 4099 8792 4086 8785 4071 8781 4059
8782 4050 8782
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
DK5 follow-up statements
099
WWUS53 KLOT 120051
SVSLOT
Severe Weather Statement
National Weather Service Chicago/Romeoville
751 PM CDT Thu Jun 11 2026
ILC053-INC007-073-111-120145-
/O.CON.KLOT.TO.W.0041.000000T0000Z-260612T0145Z/
Ford IL-Newton IN-Benton IN-Jasper IN-
751 PM CDT Thu Jun 11 2026
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 PM CDT/945 PM EDT/
FOR SOUTHEASTERN FORD...NEWTON...BENTON AND JASPER COUNTIES...
At 751 PM CDT/851 PM EDT/, severe thunderstorms capable of producing
tornadoes were located along a line extending from St. Anne to near
Martinton to near Sheldon to near Stockland to near Hoopeston, moving
east at 60 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
These dangerous storms will be near...
Kentland around 755 PM CDT.
Earl Park around 855 PM EDT.
Morocco and Brook around 800 PM CDT.
Fowler and Boswell around 900 PM EDT.
Other locations in the path of these tornadic storms include
Goodland, Rensselaer, Remington and Hanging Grove.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
This line of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.
&&
LAT...LON 4091 8699 4084 8699 4084 8710 4048 8709
4048 8793 4040 8793 4040 8801 4049 8801
4049 8753 4106 8753 4113 8693 4091 8693
TIME...MOT...LOC 0051Z 256DEG 55KT 4103 8773 4090 8766 4075 8762 4063
8763 4054 8763
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
DK916
WWUS53 KLOT 120101
SVSLOT
Severe Weather Statement
National Weather Service Chicago/Romeoville
801 PM CDT Thu Jun 11 2026
ILC053-120111-
/O.CAN.KLOT.TO.W.0041.000000T0000Z-260612T0145Z/
Ford IL-
801 PM CDT Thu Jun 11 2026
...THE TORNADO WARNING FOR SOUTHEASTERN FORD COUNTY IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 900 PM CDT/1000 PM EDT/ for
northwestern Indiana.
&&
LAT...LON 4091 8699 4084 8699 4084 8710 4048 8709
4048 8751 4105 8752 4113 8693 4091 8693
TIME...MOT...LOC 0101Z 270DEG 55KT 4106 8756 4093 8749 4078 8745 4066
8746 4057 8746
$$
INC007-073-111-120145-
/O.CON.KLOT.TO.W.0041.000000T0000Z-260612T0145Z/
Newton IN-Benton IN-Jasper IN-
801 PM CDT Thu Jun 11 2026
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 PM CDT/945 PM EDT/
FOR NEWTON...BENTON AND JASPER COUNTIES...
At 801 PM CDT/901 PM EDT/, severe thunderstorms capable of producing
tornadoes were located along a line extending from near Hopkins Park
to near Morocco to Kentland to near Earl Park to near Boswell, moving
east at 65 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
These dangerous storms will be near...
Kentland, Morocco, Goodland, and Brook around 805 PM CDT.
Fowler, Boswell, and Earl Park around 905 PM EDT.
Remington around 810 PM CDT.
Oxford around 910 PM EDT.
Other locations in the path of these tornadic storms include
Rensselaer and Hanging Grove.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
This line of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.
&&
LAT...LON 4091 8699 4084 8699 4084 8710 4048 8709
4048 8751 4105 8752 4113 8693 4091 8693
TIME...MOT...LOC 0101Z 270DEG 55KT 4106 8756 4093 8749 4078 8745 4066
8746 4057 8746
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
DK060
WWUS53 KLOT 120123
SVSLOT
Severe Weather Statement
National Weather Service Chicago/Romeoville
823 PM CDT Thu Jun 11 2026
INC007-120132-
/O.CAN.KLOT.TO.W.0041.000000T0000Z-260612T0145Z/
Benton IN-
823 PM CDT Thu Jun 11 2026
...THE TORNADO WARNING FOR BENTON COUNTY IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled. The threat of heavy
rains and gusty winds remain with ongoing thunderstorms.
A Tornado Watch remains in effect until 900 PM CDT for northwestern
Indiana.
&&
LAT...LON 4091 8699 4084 8699 4084 8710 4074 8710
4074 8737 4106 8744 4113 8693 4091 8693
TIME...MOT...LOC 0122Z 255DEG 55KT 4110 8713 4100 8708 4085 8707 4073
8708 4064 8708
$$
INC073-111-120145-
/O.CON.KLOT.TO.W.0041.000000T0000Z-260612T0145Z/
Newton IN-Jasper IN-
823 PM CDT Thu Jun 11 2026
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 PM CDT FOR
SOUTHEASTERN NEWTON AND JASPER COUNTIES...
At 822 PM CDT, severe thunderstorms capable of producing tornadoes
were located along a line extending from 7 miles southwest of
Wheatfield to 6 miles northeast of Rensselaer to near Wolcott to 9
miles southeast of Remington, moving east at 65 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Hanging Grove.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
This line of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.
&&
LAT...LON 4091 8699 4084 8699 4084 8710 4074 8710
4074 8737 4106 8744 4113 8693 4091 8693
TIME...MOT...LOC 0122Z 255DEG 55KT 4110 8713 4100 8708 4085 8707 4073
8708 4064 8708
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
DK406
WWUS53 KLOT 120133
SVSLOT
Severe Weather Statement
National Weather Service Chicago/Romeoville
833 PM CDT Thu Jun 11 2026
INC111-120143-
/O.CAN.KLOT.TO.W.0041.000000T0000Z-260612T0145Z/
Newton IN-
833 PM CDT Thu Jun 11 2026
...THE TORNADO WARNING FOR SOUTHEASTERN NEWTON COUNTY IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 900 PM CDT for northwestern
Indiana.
&&
LAT...LON 4091 8699 4110 8712 4113 8693 4091 8693
TIME...MOT...LOC 0133Z 256DEG 55KT 4113 8697 4103 8692 4088 8691 4076
8692 4067 8692
$$
INC073-120145-
/O.CON.KLOT.TO.W.0041.000000T0000Z-260612T0145Z/
Jasper IN-
833 PM CDT Thu Jun 11 2026
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 PM CDT FOR EAST
CENTRAL JASPER COUNTY...
At 833 PM CDT, severe thunderstorms capable of producing tornadoes
were located along a line extending from near Medaryville to near
Francesville to near Monon to 6 miles east of Wolcott to near
Brookston, moving east at 65 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Hanging Grove and Baileys Corner.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
This line of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.
&&
LAT...LON 4091 8699 4110 8712 4113 8693 4091 8693
TIME...MOT...LOC 0133Z 256DEG 55KT 4113 8697 4103 8692 4088 8691 4076
8692 4067 8692
TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN
$$
DK687 WWUS53 KLOT 120143 SVSLOT Severe Weather Statement National Weather Service Chicago/Romeoville 843 PM CDT Thu Jun 11 2026 INC073-120152- /O.EXP.KLOT.TO.W.0041.000000T0000Z-260612T0145Z/ Jasper IN- 843 PM CDT Thu Jun 11 2026 ...THE TORNADO WARNING FOR EAST CENTRAL JASPER COUNTY WILL EXPIRE AT 845 PM CDT... The storms which prompted the warning have moved out of the area. Therefore, the warning will be allowed to expire. However, heavy rain is still possible with these thunderstorms. A Tornado Watch remains in effect until 900 PM CDT for northwestern Indiana. && LAT...LON 4091 8699 4110 8712 4113 8693 4091 8693 TIME...MOT...LOC 0142Z 256DEG 55KT 4116 8683 4106 8678 4091 8677 4079 8678 4070 8678 $$ DK
What forecasters said that day
The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Chicago, IL wrote its last area forecast discussion before this tornado warning went out at Jun 11, 6:34 PM CDT, 1 hour 6 minutes earlier. Its key messages:
- Severe storms likely through this evening (highest threat between 5 and 10 PM). All hazards (tornadoes, destructive winds, significant hail) are possible across the entire area.
- After a dry and cooler day on Friday, there is another threat for severe weather late Saturday.
Area forecast discussion, Jun 11, 6:34 PM CDT, 1 hour 6 minutes before
Area Forecast Discussion
National Weather Service Chicago/Romeoville, IL
634 PM CDT Thu Jun 11 2026
.KEY MESSAGES...
- Severe storms likely through this evening (highest threat
between 5 and 10 PM). All hazards (tornadoes, destructive
winds, significant hail) are possible across the entire area.
- After a dry and cooler day on Friday, there is another threat
for severe weather late Saturday.
&&
.MESOSCALE...
Issued at 222 PM CDT Thu Jun 11 2026
Quick update on latest thinking regarding today's severe threat.
The 18z sounding from ILX has shown an impressive EML (elevated
mixed layer) has advected into the area. This is resulting in
MUCH steeper 700-400 mb lapse rates, however at the base of those
steeper lapse rates there's been about a 2C+ warming in/near
700mb. That warming near 700mb and resultant convection
inhibition combined with weaker large scale ascent (for now) has
prevented the convection near the tail end of the morning MCS from
becoming rooted in the boundary layer and taking off. This bodes
well for reducing the chances for discrete convection in the open
warm sector across central IL.
HRRR continues to lose that convection much more quickly than
what is actually happening, however the WOFS (Warn-on Forecast
System) hangs onto that convection and the lingering footprint
of the cold pool longer than the HRRR. It too, loses that
convection quickly, perhaps a bit too quickly, but generally
depicts that the northern extent of the very concerning tornado
environment later this afternoon would be a farther south. It
wouldn't be shocking to see that northern extent shift a bit
farther south in later runs as WOFS initializes from current
radar.
Farther west, the low level response the sfc cyclone lifting
northeast has been quite impressive with northward surge of low
level moisture. Cloud cover and precipitation is preventing
boundary layer temps from warming in this area resulting in very
weak low level lapse rates. Farther south, across far northeast
Missouri some breaks in the cloud cover have allowed temps to warm
into the low to mid 80s, resulting stronger low level CAPE.
Satellite trends suggest that some partial clearing will
overspread much of northern IL this afternoon. This combined
with increasing southerly flow in the synoptic response to the
deepening low lifting north in Iowa should result in the
outflow boundary/southern extent of outflow from the morning
convection gradually lifting north and perhaps mixing out a bit
this afternoon.
It still seems like there will be a gradient between stronger
low level CAPE and weaker low level destabilization somewhere in
our CWA. Latest WOFS has the northern extent of that better low
instability and resultant very favorable tornado environment
getting as far north as roughly to an Ottawa to Chicago line by
later this afternoon. While the exactly how far north the more
concerning environment gets is lower confidence (ultimately may
not be a sharp line rather more of a gradient), but the general
idea of significant tornado threat increasing near/south of I-55
and I-80 seems reasonable.
There is a dramatic increase in low and deep layer shear comparing
ILX's VWP to DVN's VWP. The unseasonably strong shear noted on
DVN's VWP is expected to spread eastward across our CWA as the
afternoon progresses. Storm mode may tend to favor linear by the
time the convection reaches our CWA, but given the very strong low
level shear, QLCS tornadoes and perhaps even tornadic supercells
embedded within the QLCS will be a threat. This threat will likely
be more prolific where the stronger boundary layer heating leads
to stronger low level CAPE, but even farther north the strong
shear will support a QLCS tornado threat.
Finally, any discrete supercell within the warm sector later this
afternoon (especially southern CWA) will be in an exceptionally
favorable environment for strong tornadoes. While linear storm
mode is most likely, there is still some chance for discrete
supercell development in the warm sector, so we will be
watching that closely. If the remnant outflow boundary from
this morning's MCS doesn't mix out, then it would be a potential
source for enhanced low level vorticity and a zone we'd watch
for a locally higher tornado threat (both supercellular and
QLCS).
- Izzi
&&
.DISCUSSION...
Issued at 242 PM CDT Thu Jun 11 2026
Broad mid and upper-level cyclonic flow will persist across the
northern United States through the period. While this will
maintain periodic opportunities for showers and thunderstorms
into next week, we will experience a brief break in pattern for
Friday. On Friday, a much less humid airmass shifting overhead
on westerly winds in the wake of this evenings cold frontal
passage will support a more comfortable weather day with
temperatures topping out around 80 under mainly sunny skies.
Humidity values will be back on the increase again for Saturday
as the low-level flow turns south-southwesterly in advance of
the next approaching surface cold front dropping southward from
the Upper Midwest. As the front shifts into our area late
Saturday into Saturday night, a narrow corridor of slightly
better low-level moisture return preceding it may support the
development of some scattered showers and thunderstorms. Should
these materialize, we will also have to monitor the potential
for some more organized storms into Saturday evening,
particularly given the presence of strong deep layer flow. While
not looking to be a major severe weather event at this time, we
certainly cannot rule out the threat for a few stronger storms
to become capable of producing instances of damaging winds and
hail. Accordingly, the SPC Day 3 outlook continues to highlight
our area in a level 1 of 5 severe weather threat for late
Saturday.
A push of much cooler and dry weather is anticipated for the
second half of the weekend into early next week following the
cold frontal passage Saturday night. Interestingly, this airmass
looks to hold daytime highs in the 70s (lows in the low to mid
50s) early next week. Conditions then look to turn more active
again (return of showers and thunderstorms) mid to late next
week as an enhanced northwesterly upper-level flow pattern sets
up across the central part of the country.
KJB
&&
.AVIATION /00Z TAFS THROUGH 06Z SATURDAY/...
Issued at 634 PM CDT Thu Jun 11 2026
Key Messages:
- Strong storms impact the terminals through 02-03Z this
evening. Brief period of gusty winds in excess of 45 kt and
torrential downpours may accompany these storms.
- Winds shift westerly and gradually abate mid to late this
evening following a cold frontal passage.
The main aviation weather concern revolves around the strong
thunderstorms that will impact the terminals through 02-03Z
this evening. Very heavy rainfall will accompany these storms,
which will likely result in a short (hour or less) period of
sub mile VSBYs. Also, a period of strong, potentially damaging
wind gusts (in excess of 45 kt) may accompany this line of
storms. Fortunately, the line of storms will quickly shift east
of the terminals after 02-03z this evening as a cold front
shifts across the area. Winds will shift westerly following
this frontal passage, with speeds expected to ease overnight.
Quieter weather is expected overnight and through the day
Friday, with mainly clear skies and westerly winds.
KJB
&&
.LOT WATCHES/WARNINGS/ADVISORIES...
IL...Flood Watch until 11 PM CDT this evening for ILZ003-ILZ004-
ILZ005-ILZ006-ILZ008-ILZ010-ILZ011-ILZ012-ILZ013-ILZ019-
ILZ020-ILZ021-ILZ023-ILZ032-ILZ033-ILZ039-ILZ103-ILZ104-
ILZ105-ILZ106-ILZ107-ILZ108.
IN...Flood Watch until 11 PM CDT /midnight EDT/ this evening for
INZ001-INZ002-INZ010-INZ011-INZ019.
LM...Small Craft Advisory until 10 PM CDT this evening for the IL
and IN nearshore waters.
&&
Visit us at weather.gov/chicagoHazardous weather outlook, Jun 11, 3:11 PM CDT, 4 hours 29 minutes before
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
311 PM CDT Thu Jun 11 2026
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-122015-
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
311 PM CDT Thu Jun 11 2026 /411 PM EDT Thu Jun 11 2026/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Elevated Thunderstorm Risk...with an associated:
Level 4 of 5 Damaging Wind Risk...up to 80 mph.
Level 3 of 5 Tornado Risk.
Level 2 of 5 Isolated Large Hail Risk...up to 2 inches in diameter.
Elevated Flooding Risk.
Elevated Non Thunderstorm Wind Risk.
DISCUSSION...
Severe thunderstorms will continue to develop in advance of an
approaching cold front this afternoon. These storms are expected
to move across the area through 10 PM this evening, and will be
capable of producing tornadoes and destructive winds, some
possibly significant. Instances of flash flooding may also occur
where thunderstorms repeatedly hit the same area.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
Saturday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Flooding Risk.
Tuesday and Wednesday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotters will be needed through this evening.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east at around 45 mph.
LMZ740>745-122015-
Winthrop Harbor to Wilmette Harbor IL-
Wilmette Harbor to Northerly Island IL-
Northerly Island to Calumet Harbor IL-
Calumet Harbor IL to Gary IN-Gary to Burns Harbor IN-
Burns Harbor to Michigan City IN-
311 PM CDT Thu Jun 11 2026
This Hazardous Weather Outlook is for portions of the Illinois
nearshore waters of Lake Michigan and the Indiana nearshore
waters of Lake Michigan.
.DAY ONE...Tonight.
Weather hazards expected...
Hazardous conditions for small craft.
Significant Thunderstorm Risk...with an associated:
Thunderstorm Waterspout Risk
Level 4 of 5 Thunderstorm Wind Gust Risk...up to 65 knots.
Level 2 of 5 Hail Risk...up to 1 inch in diameter.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
Saturday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Tuesday and Wednesday...
Limited Thunderstorm Risk.
KJB
Visit us at www.weather.gov/chicagoIn the hours before
Local storm report, Jun 11, 7:10 PM CDT, 30 minutes before
Preliminary Local Storm Report
National Weather Service Chicago IL
710 PM CDT Thu Jun 11 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0708 PM Funnel Cloud 3 SSE Hopkins Park 41.03N 87.60W
06/11/2026 Kankakee IL Public
Multiple reports of funnel clouds south and
southeast of Hopkins Park.
&&
WSLLocal storm report, Jun 11, 7:14 PM CDT, 26 minutes before
Preliminary Local Storm Report
National Weather Service Chicago IL
714 PM CDT Thu Jun 11 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0712 PM Flood 1 E Kirkland 42.10N 88.82W
06/11/2026 De Kalb IL Public
6 inches of standing water on IL-72 near
Ault Road.
&&
WSLLocal storm report, Jun 11, 7:17 PM CDT, 23 minutes before
Preliminary Local Storm Report
National Weather Service Chicago IL
717 PM CDT Thu Jun 11 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0711 PM Flood McHenry 42.34N 88.27W
06/11/2026 McHenry IL Law Enforcement
McHenry Police Department reports flooding
on Front Street between John Street and Oak
Avenue.
&&
WSLLocal storm report, Jun 11, 7:26 PM CDT, 14 minutes before
Preliminary Local Storm Report
National Weather Service Chicago IL
726 PM CDT Thu Jun 11 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0718 PM Flood 3 S Timberlane 42.30N 88.85W
06/11/2026 Boone IL Public
Multiple public reports of roadway flooding
between Belvidere and Timberland. Relayed
via mping.
&&
WSLLocal storm report, Jun 11, 7:32 PM CDT, 8 minutes before
Preliminary Local Storm Report
National Weather Service Chicago IL
732 PM CDT Thu Jun 11 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0729 PM Funnel Cloud 3 W Cedar Lake 41.36N 87.51W
06/11/2026 Lake IN Trained Spotter
Trained spotter reports rotating wall cloud
with funnel cloud just west of Cedar Lake.
&&
WSLLocal storm report, Jun 11, 7:39 PM CDT, 1 minute before
Preliminary Local Storm Report
National Weather Service Chicago IL
739 PM CDT Thu Jun 11 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0724 PM Tstm Wnd Gst 3 NW Merrillville 41.50N 87.37W
06/11/2026 M54 MPH Lake IN Public
Private weather station KINMERRI15 reported
54 mph gust.
&&
WSLThe office that day
Everything else NWS Chicago, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 7:03 PM CDT | Areal Flood Advisory | LOT | DeKalb, Ogle | 2 hr |
| Jun 11, 7:11 PM CDT | Severe Thunderstorm Warning | LOT | Ford, Iroquois, Livingston | 64 min |
| Jun 11, 7:14 PM CDT | Severe Thunderstorm Warning | LOT | Kane | 26 min |
| Jun 11, 7:20 PM CDT | Tornado Warning | LOT | Will | 40 min |
| Jun 11, 7:24 PM CDT | Tornado Warning | LOT | Ford, Iroquois | 40 min |
| Jun 11, 7:37 PM CDT | Areal Flood Advisory | LOT | Will | 3 hr |
| Jun 11, 7:53 PM CDT | Severe Thunderstorm Warning | LOT | Cook, DuPage, Kendall, Will | 52 min |
| Jun 11, 7:54 PM CDT | Tornado Warning | LOT | Cook, DuPage | 16 min |
| Jun 11, 8:04 PM CDT | Tornado Warning | LOT | DuPage | 26 min |
| Jun 11, 8:07 PM CDT | Severe Thunderstorm Warning | LOT | Cook, Lake | 53 min |
| Jun 11, 8:13 PM CDT | Special Marine Warning | LOT | 67 min | |
| Jun 11, 8:17 PM CDT | Tornado Warning | LOT | Cook | 28 min |
| Jun 11, 9:06 PM CDT | Areal Flood Advisory | LOT | Boone, DeKalb, Lake, Lee, McHenry, Ogle and 1 more | 22 hr |
| Jun 11, 9:44 PM CDT | River Flood Warning | LOT | Cook | 37 hr |
| Jun 11, 9:47 PM CDT | River Flood Warning | LOT | Cook | 19 hr |
| Jun 11, 10:49 PM CDT | Areal Flood Advisory | LOT | Will | 20 hr |
| Jun 12, 10:39 AM CDT | River Flood Warning | LOT | LaSalle | 38 hr |
| Jun 12, 10:57 AM CDT | River Flood Warning | LOT | Winnebago | 33 hr |
| Jun 12, 11:07 AM CDT | River Flood Watch | LOT | Livingston | 8 hr |
| Jun 11, 7:14 PM CDT | Tornado Warning | LOT | Lake | 34 min |
| Jun 11, 7:30 PM CDT | Tornado Warning | LOT | Lake | 30 min |
| Jun 11, 7:35 PM CDT | Tornado Warning | LOT | Porter | 34 min |
| Jun 11, 7:51 PM CDT | Tornado Warning | LOT | Jasper, Porter | 39 min |
| Jun 11, 8:13 PM CDT | Tornado Warning | LOT | Jasper, Lake, Newton | 31 min |
| Jun 11, 8:26 PM CDT | Severe Thunderstorm Warning | LOT | Lake | 34 min |
| Jun 11, 8:30 PM CDT | Severe Thunderstorm Warning | LOT | Jasper, Lake, Porter | 49 min |
| Jun 12, 11:09 AM CDT | River Flood Watch | LOT | Lake, Newton | 8 hr |
Nearby
Tornado Warnings in Indiana, 2026Tornado Warnings in Illinois, 2026Every tornado warning in 2026Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.