- Overview
- Storm Reports
- Additional Info
Overview
- Thunderstorms associated with a mesoscale convective vortex (MCV) tracked across portions of northern Illinois during the afternoon of June 16th, producing scattered wind damage.
- These storms weakened as they approached the Chicago metro, but an aggregate outflow boundary produced by these storms continued to surge eastward, producing strong winds that caused additional instances of wind damage in the Chicago metro despite very little accompanying rain and lightning. Blowing dust was also reported in the strong winds behind the outflow boundary.
- The most significant damage occurred on the far west side of Rockford, where a microburst caused a gas station canopy to collapseand produced a concentrated area of tree and power line damage.
Meteorological Glossary:
- Mesoscale convective vortex (MCV): A compact low pressure center that forms within large thunderstorm complexes. The winds around this low pressure center take on a swirl-like or vortex-like pattern and are oriented in a counterclockwise direction.MCVs can persist long after their parent storm complex has decayed, and can often go on to generate new thunderstorms several hours after this has happened. They are notoriously difficult to forecast as models often struggle to resolve to them and how they will evolve with time.
- Outflow boundary: The leading edge of rain-cooled air that rushesout ahead of a thunderstorm after it produces a downdraft. This boundary is also known as a gust front. When an outflow boundary passes through, it usually produces a gusty wind shift and a drop in temperatures. In some cases, the winds behind an outflow boundary can be strong enough to produce damage, sometimes well before the associatedstorm arrives.
- Microburst: A localized column of sinking air, or a downdraft, within a thunderstorm that spreads out and produces strong winds in various directions once it hits the ground. Microbursts often reach the ground with enough force to produce a concentrated area of wind damage, which can oftentimes be similar to what an EF-0 or EF-1 tornado can produce.
More information on different severe weather types and terms can be found here.
Storm Reports
Preliminary Storm Report Map |
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| Wind damage in Rockford. Photo courtesy of the Winnebago County Emergency Management Agency. | Wind damage in Rockford. Photo courtesy of the Winnebago County Emergency Management Agency. |
Preliminary Local Storm Report...SummaryNational Weather Service Chicago IL536 AM CDT Mon Jun 17 2024..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON.....DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS..0316 PM Tstm Wnd Dmg Polo 41.98N 89.58W06/16/2024 Ogle IL Public A few 3-5 inch diameter tree limbs were downed in Polo. Time estimated from radar.0317 PM Tstm Wnd Gst 3 ESE Dixon 41.83N 89.43W06/16/2024 M54 MPH Lee IL Mesonet Mesonet station UR568 Dixon2.0325 PM Tstm Wnd Dmg 1 NNE Dixon 41.86N 89.47W06/16/2024 Lee IL Broadcast Media Picture of downed tree relayed to us from a viewer.0352 PM Tstm Wnd Gst Rockford Airport 42.20N 89.10W06/16/2024 M53 MPH Winnebago IL ASOS KRFD ASOS peak gust.0356 PM Tstm Wnd Dmg 1 NNE Rockford 42.29N 89.08W06/16/2024 Winnebago IL Trained Spotter Report of a 5 to 6 inch diameter tree limb down near North Main Street and Auburn in Rockford.0356 PM Tstm Wnd Dmg 4 ENE Winnebago 42.29N 89.17W06/16/2024 Winnebago IL Broadcast Media Report of a 6 to 7 inch diameter tree limb down at WIFR in Rockford. Time estimated from radar.0359 PM Tstm Wnd Dmg 3 E Winnebago 42.27N 89.17W06/16/2024 Winnebago IL Broadcast Media Corrects previous tstm wnd dmg report from 3 E Winnebago. Mobil gas station canopy collapsed at US 20 and Meridian Road on the far west side of Rockford.0402 PM Tstm Wnd Dmg 4 E Winnebago 42.27N 89.17W06/16/2024 Winnebago IL Emergency Mngr Pictures received of numerous trees and power lines down in the Parker Wood Subdivision. Time estimated from radar.0404 PM Tstm Wnd Dmg 3 W Rockford 42.27N 89.16W06/16/2024 Winnebago IL Emergency Mngr Pictures received of a large tree down on the side of a home. Time estimated from radar.0408 PM Tstm Wnd Gst 3 NNE Leland 41.66N 88.78W06/16/2024 M58 MPH De Kalb IL Mesonet Ambient Weather station WS2902 recorded a 58.2 mph gust associated with thunderstorm outflow.0410 PM Tstm Wnd Dmg Rochelle 41.92N 89.08W06/16/2024 Ogle IL Trained Spotter Report of 5 inch diameter branch down on a home causing damage to the porch.0415 PM Tstm Wnd Gst 1 NNW Cortland 41.93N 88.70W06/16/2024 M52 MPH De Kalb IL AWOS KDKB AWOS peak gust.0415 PM Tstm Wnd Dmg 2 N Maple Park 41.94N 88.60W06/16/2024 Kane IL Emergency Mngr Report of trees down blocking both lanes of traffic on west County Line Road at Winters Road in Maple Park. Time estimated from radar.0416 PM Hail 2 NW Roscoe 42.43N 89.03W06/16/2024 U0.50 Inch Winnebago IL Public From mPING.0425 PM Blowing Dust 1 N Lily Lake 41.96N 88.48W06/16/2024 Kane IL Public Strong gust front caused lots of blowing dust and significantly reduced visibility for about 10 minutes. Peak measured wind gust 49 mph.0427 PM Tstm Wnd Dmg 2 W Campton Hills 41.94N 88.43W06/16/2024 Kane IL Emergency Mngr Report of trees and power lines down on Circle drive in Campton Hills. Time estimated from radar.0431 PM Tstm Wnd Dmg 1 SW Campton Hills 41.93N 88.41W06/16/2024 Kane IL Emergency Mngr *** 1 INJ *** Report that a tree fell on a child resulting in an injury. Time estimated from radar.0438 PM Tstm Wnd Dmg 1 NW Elgin 42.05N 88.30W06/16/2024 Kane IL Emergency Mngr Report of a large tree blocking Buckeye Street in Elgin. Time estimated from radar.0445 PM Tstm Wnd Dmg Lakewood 42.22N 88.38W06/16/2024 McHenry IL Public Trees downed.0447 PM Tstm Wnd Dmg 1 SSW West Dundee 42.09N 88.28W06/16/2024 Kane IL Emergency Mngr Multiple reports of down power lines and power outages near the Elgin, West Dundee, and Carpentersville areas. Time estimated from radar.0506 PM Tstm Wnd Dmg Bolingbrook 41.70N 88.07W06/16/2024 Will IL Public Report of 8 inch diameter tree limb snapped. Time estimated from radar.0525 PM Tstm Wnd Dmg Humboldt Park - Chicago 41.90N 87.72W06/16/2024 Cook IL 911 Call Center Numerous trees and large branches down in the west Humboldt Park neighborhood.0530 PM Tstm Wnd Dmg 1 NW Portage Park - Chi 41.96N 87.77W06/16/2024 Cook IL 911 Call Center Numerous downed trees/large branches in the Jefferson Park and Portage Park neighborhoods.0537 PM Tstm Wnd Gst 1 NE Montrose Harbor 41.97N 87.63W06/16/2024 M47 MPH LMZ741 IL Mesonet Corrects previous tstm wnd gst report from 1 NE Montrose Harbor. Mesonet station XMTB Montrose Beach Light measured a 41 kt (47 mph) wind gust.0540 PM Tstm Wnd Gst 2 E Winthrop Harbor 42.48N 87.78W06/16/2024 M40 MPH LMZ740 IL Buoy0544 PM Tstm Wnd Gst 3 NE Navy Pier 41.92N 87.57W06/16/2024 M49 MPH LMZ741 IL Mesonet Mesonet station CHII2 Harrison-Dever Crib measured a 43 kt (49 mph) wind gust.0545 PM Tstm Wnd Dmg 1 SSE Chatham - Chicago 41.73N 87.61W06/16/2024 Cook IL 911 Call Center Several trees/large branches down in Chatham and Burnside neighborhoods.
Additional Information
Links:
- NWS Quad Cities Event Summary
- NWS Chicago Past Events Page
