Light to moderate snow will continue into Saturday over the Great Lakes, Central Appalachians, and Northeast. This weekend into next week, a series of atmospheric rivers will bring gusty winds, periods of heavy rain, and mountain snow to northern California and the Pacific Northwest. Colder temperatures are in store for the weekend from the Great Lakes to East Coast. Read More >
Overview
Thunderstorms developed during the late morning and early afternoon across a zone just south of I-80 in northern Illinois and northwest Indiana and persisted for several hours. An extremely moist environment set the stage for very heavy rainfall rates. In addition, storms were moving slow and training over the same areas. This brought about flash flooding due to rainfall amounts estimated at three plus inches, and possibly near six, in some locations. The hardest hit communities were Braceville and Odell in northern Illinois, and in Indiana near the town of Hebron experienced very heavy rainfall. |
Flooding
Braceville
Courtesy of Karen Arndt |
Courtesy of Christina Brock | Courtesy of Karen Arndt | Courtesy of Karen Arndt | Stacy Brown |
Other Locations
Odell, IL: Courtesy of Heidi Legner | Odell, IL: Courtesy of Kathy Heddins | Verona, IL: Courtesy of Stacy Gans |
Radar:
NWS Chicago 0.5° Radar reflectivity loop from August 28, 11:30 a.m. - 4:30 p.m. at 5 minute intervals. |
Storm Reports
PRELIMINARY LOCAL STORM REPORT...SUMMARY NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 757 PM CDT SUN AUG 28 2016 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 0200 PM LIGHTNING 1 NNE ODELL 41.02N 88.52W 08/28/2016 LIVINGSTON IL LAW ENFORCEMENT CAR STUCK BY LIGHTNING ON I-55 AT MILE MARKER 210. 0200 PM HEAVY RAIN 4 NNW DWIGHT 41.15N 88.45W 08/28/2016 M1.75 INCH GRUNDY IL COCORAHS RAIN FELL IN PAST HOUR 0215 PM FLOOD LOWELL 41.29N 87.41W 08/28/2016 LAKE IN PUBLIC FLOODED YARDS AND MINOR FLOODING ON ROADS. 0215 PM FLASH FLOOD 3 SE HEBRON 41.29N 87.16W 08/28/2016 PORTER IN LAW ENFORCEMENT WATER OVER 500 WEST AND 1000 SOUTH TO THE POINT WHERE THE ROAD WAS CLOSED. TIME ESTIMATED PER RADAR. 0230 PM FLASH FLOOD ODELL 41.00N 88.52W 08/28/2016 LIVINGSTON IL PUBLIC SOME ROADS WITH WATER ON THEM AND MANY YARDS FLOODED. TIME ESTIMATED PER RADAR. 0230 PM FLASH FLOOD GODLEY 41.24N 88.24W 08/28/2016 WILL IL PUBLIC WATER AT LEAST ONE FOOT DEEP ON MULTIPLE ROADS. TIME ESTIMATED PER RADAR. 0250 PM FLASH FLOOD BRACEVILLE 41.22N 88.27W 08/28/2016 GRUNDY IL PUBLIC AT INTERSECTION OF RAILROAD AND MCNEIL ST WATER IS 2 TO 3 FEET DEEP. 0300 PM FLASH FLOOD 3 N GARDNER 41.23N 88.31W 08/28/2016 GRUNDY IL PUBLIC WATER RUNNING OVER ROADWAYS THAT TYPICALLY DO NOT FLOOD. ESTIMATED RAINFALL OF OVER FOUR INCHES IN OVER AN HOUR. 0302 PM HEAVY RAIN BRACEVILLE 41.22N 88.27W 08/28/2016 E4.50 INCH GRUNDY IL PUBLIC RAIN FELL IN AROUND 90 MINUTES 0315 PM FLOOD 5 SW HEBRON 41.27N 87.27W 08/28/2016 LAKE IN PUBLIC FLOODED FIELDS. 0327 PM FLASH FLOOD BRACEVILLE 41.22N 88.27W 08/28/2016 GRUNDY IL PUBLIC MANY ROADS IN TOWN FLOODED...SOME SIGNIFICANTLY. 0330 PM FLOOD VERONA 41.22N 88.50W 08/28/2016 GRUNDY IL PUBLIC FLOODED YARDS AND DITCHES.
Rain Reports
24 Hour Precipitation Ending at 7 AM August 29 |
Public Information Statement National Weather Service Chicago IL 1005 AM CDT Mon Aug 29 2016 ...Morning Rainfall Roundup... The following are rain amounts for the previous 24-hours as measured in the morning by NWS Cooperative Observers and CoCoRaHS observers. Observations are usually taken between 6 AND 8 AM. 24-hour rainfall amounts for Monday(08/29/16)... Illinois Rain Location (County): fall (inches) Braceville (Grundy)..........................4.68 Dwight 4NNW (Grundy).........................1.81 Pontiac 1SE (Livingston).....................1.63 Pontiac 1ESE (Livingston)....................1.33 Sterling 4NE (Lee)...........................1.30 Joliet 3WNW (Will)...........................1.22 Dwight (Livingston)..........................1.15 Coal City (Grundy)...........................1.01 Pontiac (Livingston).........................0.94 Joliet 2n (Will).............................0.87 Wilmington 3SE (Will)........................0.79 Dixon (Lee)..................................0.75 Mazon 0.5ENE (Grundy)........................0.73 Streator 1WSW (La Salle).....................0.66 Joliet (Will)................................0.66 Joliet 2W (Will).............................0.63 Emington 2SSE (Livingston)...................0.53 Dixon 2SW (Lee)..............................0.51 Seneca 1NNE (La Salle).......................0.51 Pontiac (Livingston).........................0.51 Bonfield 4NNE (Kankakee).....................0.50 Beecher 3SSE (Will)..........................0.47 Joliet Lock/dam (Will).......................0.45 Seneca 2SSW (La Salle).......................0.35 Minooka (Grundy).............................0.33 Morris (Grundy)..............................0.32 Bonfield 4WSW (Kankakee).....................0.31 Peotone (Will)...............................0.22 Park Forest 1SW (Cook).......................0.18 Morris 6ESE (Grundy).........................0.18 Morris (Grundy)..............................0.18 Crete 3E (Will)..............................0.17 Channahon 2SSE (Will)........................0.17 Bourbonnais (Kankakee).......................0.15 Park Forest (Cook)...........................0.15 Elwood 5NE (Will)............................0.14 Channahon 1NNE (Will)........................0.14 New Lenox 4SE (Will).........................0.14 Marseilles (La Salle)........................0.14 Manhattan 5ENE (Will)........................0.13 Manhattan (Will).............................0.12 Morris 2SSE (Grundy).........................0.11 Coal City 3N (Grundy)........................0.11 Wilmington 6NW (Will)........................0.11 Manhattan 2SE (Will).........................0.11 Barrington (Lake)............................0.10 Chebanse (Kankakee)..........................0.09 Manhattan 1ESE (Will)........................0.09 Lockport 3ESE (Will).........................0.09 Lockport 1SE (Will)..........................0.09 Coal City 4NNW (Grundy)......................0.08 Carbon Hill 3.1N (Grundy)....................0.08 New Lenox 2SE (Will).........................0.08 Homewood (Cook)..............................0.07 Plainfield 5SW (Kendall).....................0.07 Plainfield 3SE (Will)........................0.07 New Lenox 3E (Will)..........................0.06 Ottawa (La Salle)............................0.05 Plainfield 1SW (Will)........................0.04 Chatsworth (Livingston)......................0.03 Amboy (Lee)..................................0.03 Plainfield 2SSE (Will).......................0.03 Romeoville (Will)............................0.03 Paw Paw (Lee)................................0.03 St Anne (Kankakee)...........................0.03 Ottawa 1NW (La Salle)........................0.02 Ottawa 2N (La Salle).........................0.02 Mendota (La Salle)...........................0.02 Amboy (Lee)..................................0.01 La Salle (La Salle)..........................0.01 Homer Glen 1ENE (Will).......................0.01 Steward (Lee)................................0.01 De Kalb (De Kalb)...........................TRACE Oak Lawn (Cook).............................TRACE Palos Park 1SW (Cook).......................TRACE Aurora 4SE (Du Page)........................TRACE Bolingbrook 3NE (Du Page)...................TRACE Ashkum 5.6E (Iroquois)......................TRACE Watseka 6.9WNW (Iroquois)...................TRACE Sugar Grove 1NE (Kane)......................TRACE Ashton (Lee)................................TRACE Highwood 1S (Lake)..........................TRACE Plainfield (Will)...........................TRACE Paxton (Ford)...............................TRACE Indiana Rain Location (County): fall (inches) Hebron 3SSW (Lake)...........................6.43 St. John (Lake)..............................0.31 Valparaiso 6WSW (Porter).....................0.27 (kb9f)Valparaiso 4S (Porter).................0.25 Valparaiso 1SE (Porter)......................0.21 Valparaiso 4SW (Porter)......................0.21 Valparaiso 6S (Porter).......................0.21 Crown Point 2WSW (Lake)......................0.20 Valparaiso 6SSW (Porter).....................0.20 Valparaiso (Porter)..........................0.19 Crown Point 1N (Lake)........................0.18 Merrillville 2ESE (Lake).....................0.14 Morocco (Newton).............................0.07 Hobart 1SSW (Lake)...........................0.06 Gary 4SSW (Lake).............................0.06 Hobart 1NNW (Lake)...........................0.05 (w9opr)Wheatfield 1ENE (Jasper)..............0.03 Wheatfield 3S (Jasper).......................0.02 De Motte 4SW (Jasper)........................0.02 De Motte 6S (Jasper).........................0.01 Gary 5ENE (Lake).............................0.01 Lake Village (Newton)........................0.01 De Motte 1NNW (Jasper)......................TRACE Kentland (Newton)...........................TRACE Porter 1S (Porter)..........................TRACE $$
Environment
11 a.m. Surface Weather Map | Figure 2: 7 a.m. NWS Lincoln, IL Weather Balloon Data |
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