A significant heat wave is underway for the Intermountain West, Northern Plains, and Upper Great Lakes, peaking in intensity through Tuesday. This heat is expected to be exceptionally rare and produce numerous high temperature records. Showers and thunderstorms with the potential to produce heavy rainfall and flash flooding is expected across the Gulf Coast. Read More >
Overview
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Fast Facts:
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 Widespread flash flooding across the Chicago metro area Sunday, May 17, 2020. |
Flooding and Storm Reports
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE CHICAGO IL
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1130 AM FLOOD 1 NE GARDNER 41.19N 88.30W
05/18/2020 GRUNDY IL EMERGENCY MNGR
GRUNDY COUNTY EMERGENCY MANAGER REPORTS
WATER RESCUE ONGOING IN THE VICINITY OF
GARDNER.
1100 AM FLOOD 4 ENE MORRIS 41.38N 88.36W
05/18/2020 GRUNDY IL EMERGENCY MNGR
GRUNDY COUNTY EMERGENCY MANAGER REPORTS
NUMEROUS WATER RESCUES HAVE OCCURRED ALONG
CEMETERY ROAD OVER THE LAST SEVERAL HOURS.
TIME APPROXIMATE.
0850 PM FLASH FLOOD 1 NNW CHICAGO LOOP 41.89N 87.64W
05/17/2020 COOK IL LAW ENFORCEMENT
RESIDENTIAL STRUCTURE FLOODING ALONG
KINGBURY STREET FROM THE NB CHICAGO RIVER.
0847 PM FLOOD 1 ESE CRESTWOOD 41.65N 87.73W
05/17/2020 COOK IL EMERGENCY MNGR
CAL-SAG ROAD CLOSED DUE TO FLOODING BETWEEN
CICERO AVENUE AND 135TH STREET. UNKNOWN
DEPTH. RELAYED VIA AMATUER RADIO OPERATOR.
0845 PM HEAVY RAIN 4 NNW PLAINFIELD 41.67N 88.23W
05/17/2020 M3.13 INCH WILL IL NWS EMPLOYEE
3.13 INCHES OF RAINFALL OVER APPROXIMATELY
24 HOURS.
0830 PM FLASH FLOOD 1 S JOLIET 41.51N 88.08W
05/17/2020 WILL IL TRAINED SPOTTER
IL-53 PAVEMENT CHUNKS DAMAGED NEAR I-80 DUE
TO FLASH FLOODING. TIME ESTIMATED.
0825 PM FLOOD FOREST PARK 41.87N 87.81W
05/17/2020 COOK IL UNKNOWN
CHICAGO CTA REPORTS VIA SOCIAL MEDIA L-TRAIN
SERVICE SHUT DOWN BETWEEN HARLEM AVENUE AND
FOREST PARK STATION DUE TO FLOODING.
0813 PM FLASH FLOOD 1 NNE WHEATON 41.87N 88.10W
05/17/2020 DUPAGE IL PUBLIC
VIDEO SHARED VIA SOCIAL MEDIA SHOWS PARK
FLOODED WITH SEVERAL FEET OF WATER NEAR
DOWNTOWN WHEATON.
0811 PM FLOOD 1 W OAK FOREST 41.60N 87.76W
05/17/2020 COOK IL LAW ENFORCEMENT
NUMEROUS CARS STALLED DUE TO FLOODING AT
159TH STREET AND CENTRAL AVENUE. DEPTH
UNKNOWN. RELAYED VIA AMATEUR RADIO OPERATOR.
0805 PM FLASH FLOOD CHICAGO LOOP 41.88N 87.64W
05/17/2020 COOK IL LAW ENFORCEMENT
CARS STALLING IN FLOODWATERS ALONG LOWER
WACKER DRIVE.
0800 PM HEAVY RAIN 3 NNW LAKEWOOD 42.26N 88.40W
05/17/2020 M3.01 INCH MCHENRY IL CO-OP OBSERVER
EVENT TOTAL.
0800 PM FLASH FLOOD CHICAGO RIDGE 41.71N 87.78W
05/17/2020 COOK IL PUBLIC
PHOTO SHARED VIA SOCIAL MEDIA SHOWS FLOODING
FROM STONY CREEK INUNDATING YARDS AND
APPROACHING STRUCTURES NEAR RIDGELAND AVENUE
AND 103RD STREET.
0755 PM FLOOD 2 SW LAKE FOREST 42.24N 87.86W
05/17/2020 LAKE IL PUBLIC
PHOTO SHARED VIA SOCIAL MEDIA SHOWS US-41
CLOSED DUE TO FLOODING AT IL-60.
0755 PM FLOOD CLARENDON HILLS 41.80N 87.95W
05/17/2020 DUPAGE IL PUBLIC
PHOTO SHARED VIA SOCIAL MEDIA SHOWS
RESIDENTIAL STREET FLOODING AT LEAST 1FT
DEEP IN CLARENDON HILLS.
0740 PM FLOOD 1 WSW DEERFIELD 42.17N 87.87W
05/17/2020 LAKE IL PUBLIC
VIDEO SHARED VIA SOCIAL MEDIA SHOWS
RESIDENTIAL STREET FLOODING NEAR DEERFIELD
ROAD AND WILMOT ROAD.
0730 PM FLOOD 2 W PLAINFIELD 41.61N 88.25W
05/17/2020 WILL IL PUBLIC
MULTIPLE REPORTS OF IL-126 CLOSED WEST OF
PLAINFIELD DUE TO FLOODING.
0725 PM HEAVY RAIN 1 N CICERO 41.86N 87.75W
05/17/2020 M1.80 INCH COOK IL PUBLIC
PRIVATE WEATHER STATION REPORTS 1.8 INCHES
IN 1 HOUR PERIOD ENDING AT 725 PM.
0725 PM FLASH FLOOD FOREST PARK 41.87N 87.82W
05/17/2020 COOK IL LAW ENFORCEMENT
ISP REPORTS I-290 FLOODED NEAR DES PLAINES
AVENUE IN FOREST PARK.
0710 PM FLOOD VILLA PARK 41.89N 87.97W
05/17/2020 DUPAGE IL PUBLIC
PHOTO SHARED VIA SOCIAL MEDIA SHOWS WATER AT
LEAST 1FT DEEP ON RESIDENTIAL ROADWAYS IN
VILLA PARK.
0710 PM FLASH FLOOD ROBBINS 41.64N 87.70W
05/17/2020 COOK IL DEPT OF HIGHWAYS
COOK COUNTY DOT REPORTS KEDZIE AVENUE CLOSED
BETWEEN 137TH STREET AND 139TH STREET DUE TO
FLOODING.
0700 PM FLASH FLOOD 2 WSW ROMEOVILLE 41.64N 88.12W
05/17/2020 WILL IL PUBLIC
PHOTO SHARED VIA SOCIAL MEDIA SHOWS SEVERAL
INCHES OF WATER ON WEBER ROAD AT 135TH
STREET.
0700 PM HEAVY RAIN 6 SSW NAPERVILLE 41.70N 88.20W
05/17/2020 M2.60 INCH WILL IL PUBLIC
PRIVATE WEATHER STATION REPORTS 2.6 INCHES
OF RAIN IN 3-HR ENDING AT 7PM.
0700 PM FLOOD 1 NNW SUGAR GROVE 41.77N 88.45W
05/17/2020 KANE IL PUBLIC
NUMEROUS PUBLIC REPORTS OF FLOODED ROADWAYS
IN THE VICINITY OF SUGAR GROVE RELAYED VIA
MPING.
0700 PM FLASH FLOOD 1 ESE DOWNERS GROVE 41.79N 88.00W
05/17/2020 DUPAGE IL DEPT OF HIGHWAYS
VILLAGE OF DOWNERS GROVE REPORTS REPORTS VIA
SOCIAL MEDIA 55TH STREET HAS BEEN CLOSED
BETWEEN LYMAN AVENUE AND FLORENCE AVENUE DUE
TO FLASH FLOODING OF ST. JOSEPH CREEK AND
BARTH POND.
0700 PM FLASH FLOOD 1 ENE DOWNERS GROVE 41.80N 87.99W
05/17/2020 DUPAGE IL DEPT OF HIGHWAYS
VILLAGE OF DOWNERS GROVE REPORTS VIA SOCIAL
MEDIA FLASH FLOODING OF ST. JOSEPH CREEK HAS
OVERTOPPED FAIRVIEW AVENUE. FAIRVIEW AVENUE
CLOSED FROM MAPLE AVENUE TO PRAIRIE AVENUE.
0700 PM FLASH FLOOD 2 N DOWNERS GROVE 41.82N 88.01W
05/17/2020 DUPAGE IL DEPT OF HIGHWAYS
VILLAGE OF DOWNERS GROVE REPORTS VIA SOCIAL
MEDIA HIGHLAND AVENUE CLOSED NEAR 35TH
STREET DUE TO FLOODING OF LACEY CREEK.
0650 PM FLASH FLOOD 4 SW PLAINFIELD 41.57N 88.26W
05/17/2020 WILL IL PUBLIC
VIDEO SHARED VIA SOCIAL MEDIA SHOWS FLOODING
MULTIPLE FEET DEEP ON RESIDENTIAL STREETS
OFF COUNTY LINE ROAD.
0640 PM FLASH FLOOD 1 WSW RIVERSIDE 41.83N 87.83W
05/17/2020 COOK IL LAW ENFORCEMENT
RIVERSIDE PD REPORTS 1ST AVENUE CLOSED NEAR
FOREST AVENUE DUE TO A FLOODED UNDERPASS.
0630 PM FLASH FLOOD 3 NW BOLINGBROOK 41.72N 88.12W
05/17/2020 WILL IL NWS EMPLOYEE
MULTIPLE VEHICLES STALLED DUE TO FLOODING
ALONG NAPER BOULEVARD BETWEEN ROYCE ROAD AND
BAILEY ROAD.
0630 PM FLASH FLOOD 3 SE NAPERVILLE 41.74N 88.12W
05/17/2020 DUPAGE IL NWS EMPLOYEE
SEVERAL FEET OF WATER ON NAPER BOULEVARD
NEAR BAILEY ROAD.
0625 PM FLASH FLOOD HILLSIDE 41.87N 87.90W
05/17/2020 COOK IL PUBLIC
WATER ON A FEW LANES OF I-290 NEAR I-294.
0615 PM FLASH FLOOD PLAINFIELD 41.61N 88.22W
05/17/2020 WILL IL LAW ENFORCEMENT
PLAINFIELD PD INDICATES VIA SOCIAL MEDIA
THAT NUMEROUS ROADWAYS ARE FLOODED ACROSS
THE VILLAGE.
0610 PM FLASH FLOOD 1 N MINOOKA 41.46N 88.26W
05/17/2020 KENDALL IL PUBLIC
NUMEROUS REPORTS OF I-80 FLOODED NEAR RIDGE
ROAD IN MINOOKA.
0605 PM FLASH FLOOD 1 ENE LEMONT 41.68N 87.98W
05/17/2020 COOK IL EMERGENCY MNGR
MAIN STREET CLOSED DUE TO FLOODING FROM 4TH
STREET TO WALKER ROAD EAST OF LEMONT.
0600 PM HEAVY RAIN 4 SW PLAINFIELD 41.56N 88.26W
05/17/2020 M3.00 INCH KENDALL IL PUBLIC
PRIVATE WEATHER STATION SOUTHWEST OF
PLAINFIELD REPORTS 3.0 INCHES OF RAIN IN 2
HOURS ENDING AT 6PM.
0600 PM HEAVY RAIN 3 W MINOOKA 41.45N 88.32W
05/17/2020 M3.50 INCH GRUNDY IL PUBLIC
PRIVATE WEATHER STATION WEST OF MINOOKA
REPORTS 3.5 INCHES OF RAIN IN 2 HOURS ENDING
AT 6PM.
0600 PM HEAVY RAIN 5 WSW MINOOKA 41.41N 88.35W
05/17/2020 M3.60 INCH GRUNDY IL PUBLIC
PRIVATE WEATHER STATION SOUTHWEST OF MINOOKA
REPORTS 3.6 INCHES OF RAIN IN 2 HOURS ENDING
AT 6PM.
0550 PM FLOOD 2 ENE HOMER GLEN 41.61N 87.91W
05/17/2020 COOK IL DEPT OF HIGHWAYS
WILL-COOK ROAD CLOSED BETWEEN 151ST STREET
AND 159TH STREET DUE TO FLOODING.
0548 PM FLOOD 2 SW NEW LENOX 41.49N 87.98W
05/17/2020 WILL IL PUBLIC
FLOODING REPORTED ON NELSON ROAD AT NUMEROUS
LOCATIONS. UNKNOWN DEPTH. RELAYED VIA
SPOTTERNETWORK.
0535 PM FLOOD 5 SW PLAINFIELD 41.56N 88.28W
05/17/2020 KENDALL IL TRAINED SPOTTER
12-18 INCHES OF WATER ON CATON FARM ROAD AND
RIDGE ROAD WEST OF JOLIET.
0530 PM FLASH FLOOD 3 N CAMPUS 41.07N 88.31W
05/17/2020 LIVINGSTON IL FIRE DEPT/RESCUE
NUMEROUS ROADWAYS CLOSED IN ROUND GROVE
TOWNSHIP DUE TO FLOODING.
0526 PM TORNADO 2 SSE COAL CITY 41.26N 88.28W
05/17/2020 GRUNDY IL FIRE DEPT/RESCUE
BRAIDWOOD EMA REPORTED BRIEF TORNADO THAT
CROSSED REED ROAD WEST OF I-55. TIME
ESTIMATED BY RADAR.
0515 PM FLOOD 1 NW BLACKSTONE 41.09N 88.70W
05/17/2020 LIVINGSTON IL TRAINED SPOTTER
1 FOOT OF WATER ON IL-17 NEAR IL-18.
0515 PM FLOOD 4 E OSWEGO 41.65N 88.28W
05/17/2020 KENDALL IL PUBLIC
MULTIPLE PUBLIC REPORTS OF FLOODED ROADWAYS
NEAR 127TH STREET AND COLLINS ROAD NORTHWEST
OF PLAINFIELD.
0503 PM FLASH FLOOD 1 NNE MANHATTAN 41.44N 87.98W
05/17/2020 WILL IL PUBLIC
VIDEO AND PHOTOS SHARED TO SOCIAL MEDIA SHOW
NUMEROUS ROADWAYS FLOODED AT LEAST 1FT DEEP
IN THE MANHATTAN AREA INCLUDING SMITH ROAD
AT FOXFORD DRIVE, SMITH ROAD NEAR MCCORMICK
WAY, AND SCHOOLHOUSE ROAD NEAR SMITH ROAD.
0430 PM FLOOD 3 SSW ONARGA 40.67N 88.02W
05/17/2020 IROQUOIS IL PUBLIC
IL DOT REPORTS US-45 CLOSED BETWEEN PAXTON
AND ONARGO DUE TO FLOODING. LOCATION
APPROXIMATE. TIME APPROXIMATE.
0420 PM FLOOD 3 E MANHATTAN 41.42N 87.94W
05/17/2020 WILL IL PUBLIC
PUBLIC REPORTS VIA SOCIAL MEDIA OF FLOODING
ALONG MANHATTAN-MONEE ROAD AND SCHOOLHOUSE
ROAD EAST OF MANHATTAN.
0345 PM FLOOD 2 ESE MANHATTAN 41.41N 87.94W
05/17/2020 WILL IL PUBLIC
PHOTO SHARED VIA SOCIAL MEDIA OF PRAIRIE
CREEK FLOODING BRUNS ROAD AT THE
INTERSECTION WITH KANKAKEE STREET.
0330 PM FLOOD 1 SE EDGEWATER - CHICAG 41.98N 87.65W
05/17/2020 COOK IL PUBLIC
MULTIPLE PUBLIC REPORTS OF STREET FLOODING
IN EDGEWATER NEIGHBORHOOD OF CHICAGO RELAYED
VIA MPING.
0330 PM FLASH FLOOD OAK FOREST 41.60N 87.74W
05/17/2020 COOK IL DEPT OF HIGHWAYS
IL DOT REPORTS US-6 CLOSED AT UNDERPASS NEAR
IL-50 DUE TO FLOODING.
0310 PM TORNADO 2 NW MILLINGTON 41.58N 88.63W
05/17/2020 LA SALLE IL PUBLIC
PHOTOS AND VIDEO POSTED TO SOCIAL MEDIA SHOW
BRIEF TORNADO NORTHWEST OF MILLINGTON. TIME
ESTIMATED BY RADAR.
0230 PM FLASH FLOOD 2 W PALOS HILLS 41.70N 87.85W
05/17/2020 COOK IL PUBLIC
IL DOT REPORTS 107TH STREET CLOSED NEAR
US-45 DUE TO FLOODING.
1030 AM FLOOD 1 NNE LIBERTYVILLE 42.29N 87.95W
05/17/2020 LAKE IL PUBLIC
VIDEO POSTED TO SOCIAL MEDIA SHOWS FLOODING
OF APPLEY AVENUE NEAR OAK SPRING ROAD IN
LIBERTYVILLE.
Rain Reports
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| Two day total rainfall from Saturday night to Sunday night, May 16-17, 2020. | Five day total rainfall from May 13-17, 2020, including prior heavy rain event of May 14-15 and this one. |
Public Information Statement National Weather Service Chicago IL 848 PM CDT Mon May 18 2020 /948 PM EDT Mon May 18 2020/ ...PRECIPITATION REPORTS... The following are 48-hour totals through Monday morning May 18 from volunteer observers. Location Amount Time/Date ---------------------------------------------------- Oak Lawn 5.36 in 0700 AM 05/18 Oak Forest 1 NNW 5.15 in 0700 AM 05/18 Bridgeview 1 WNW 5.05 in 0730 AM 05/18 Burbank 1 SSW 5.00 in 0800 AM 05/18 Plainfield 4 SW 4.70 in 0700 AM 05/18 Forest Park 1 ESE 4.59 in 0600 AM 05/18 Midlothian 4.48 in 0700 AM 05/18 La Grange Park 1 SSW 4.47 in 0700 AM 05/18 Darien 2 SE 4.42 in 0800 AM 05/18 Chicago - Rogers Park 4.39 in 0800 AM 05/18 Chicago 6.3 NW 4.35 in 0835 AM 05/18 Midway 3 SW 4.35 in 0700 AM 05/18 Chicago - Albany Park 4.34 in 0700 AM 05/18 Chicago - Lincoln Park 4.29 in 0700 AM 05/18 New Lenox 1 SE 4.29 in 0800 AM 05/18 New Lenox 2 NE 4.29 in 0800 AM 05/18 Lockport 2 SE 4.27 in 0700 AM 05/18 Oak Park 1 NNE 4.23 in 0700 AM 05/18 Riverside 4.18 in 0600 AM 05/18 Frankfort 4 SW 4.17 in 0800 AM 05/18 Manhattan 3 NW 4.15 in 0700 AM 05/18 Mokena 2 WSW 4.14 in 0700 AM 05/18 Chicago Ridge 4.07 in 0700 AM 05/18 Hoffman Estates 0.6 ESE 4.06 in 0900 AM 05/18 Naperville 3 SE 4.05 in 0700 AM 05/18 Manhattan 5 ENE 3.97 in 0800 AM 05/18 Homer Glen 3 S 3.92 in 0700 AM 05/18 Alsip 2 NNE 3.86 in 0645 AM 05/18 Harwood Heights 3.86 in 0700 AM 05/18 Chicago - Hyde Park 3.84 in 0600 AM 05/18 Pontiac 1 S 3.77 in 0700 AM 05/18 Lakewood Shores 1 SE 3.77 in 0630 AM 05/18 Chicago - West Ridge 3.74 in 0700 AM 05/18 Lake Bluff 2 W 3.73 in 0600 AM 05/18 Manhattan 2 SE 3.71 in 0700 AM 05/18 Evanston 1 E 3.68 in 0800 AM 05/18 Naperville 5 SSW 3.63 in 0700 AM 05/18 New Lenox 2 SW 3.62 in 0700 AM 05/18 Manhattan 1 E 3.60 in 0830 AM 05/18 Wilmington 0.9 ENE 3.59 in 0800 AM 05/18 Minooka 3.58 in 0800 AM 05/18 Crown Point 3.57 in 0645 AM 05/18 Lombard 1 NW 3.56 in 0800 AM 05/18 Monee 5 W 3.56 in 0745 AM 05/18 Naperville 4 SSW 3.56 in 0900 AM 05/18 Hillside 1 W 3.55 in 0700 AM 05/18 Libertyville 1 ESE 3.53 in 0700 AM 05/18 Lombard 3.52 in 0700 AM 05/18 Plainfield 2 SSE 3.51 in 0700 AM 05/18 Glen Ellyn 1 W 3.49 in 0700 AM 05/18 Mount Prospect 1 SSE 3.47 in 0700 AM 05/18 Morris 2 SSE 3.46 in 0700 AM 05/18 Elmhurst 1 SE 3.45 in 0700 AM 05/18 1 S Darien 3.44 in 0800 AM 05/18 Crystal Lawns 2 N 3.43 in 0900 AM 05/18 Clarendon Hills 1 NW 3.42 in 0700 AM 05/18 Buffalo Grove 2 N 3.41 in 0700 AM 05/18 Evanston 1 SSW 3.34 in 0800 AM 05/18 Downers Grove 1 SSW 3.33 in 0800 AM 05/18 Trout Valley 3.32 in 0700 AM 05/18 New Lenox 1 SSE 3.31 in 0700 AM 05/18 Chicago - Albany Park 3.29 in 0700 AM 05/18 Lincolnshire 2 W 3.28 in 0600 AM 05/18 Buckley 3.27 in 0800 AM 05/18 Clarendon Hills 3.27 in 0700 AM 05/18 Elk Grove Village 1 ESE 3.24 in 0600 AM 05/18 Lisle 2 SW 3.23 in 0700 AM 05/18 Park Ridge 1 SSW 3.21 in 0700 AM 05/18 Glen Ellyn 1 SW 3.20 in 0730 AM 05/18 Golf 1 WSW 3.17 in 0700 AM 05/18 Forest Park 1 ENE 3.17 in 0700 AM 05/18 Lakewood 2 ENE 3.17 in 0700 AM 05/18 Shorewood 2 NE 3.16 in 0700 AM 05/18 Merrillville 2 NNW 3.16 in 0700 AM 05/18 Plainfield 4 NNW 3.15 in 0700 AM 05/18 Cedar Lake 2 S 3.15 in 0800 AM 05/18 Paxton 3.14 in 0700 AM 05/18 Algonquin 1 NNW 3.13 in 0545 AM 05/18 St. John 3.13 in 0600 AM 05/18 Huntley 3.12 in 0700 AM 05/18 Schaumburg 2 E 3.11 in 0700 AM 05/18 Carbon Hill 3 NE 3.11 in 0700 AM 05/18 Campton Hills 3 NNE 3.10 in 0700 AM 05/18 Channahon 3 SE 3.10 in 0700 AM 05/18 Lake Forest 1 NNW 3.09 in 0800 AM 05/18 Riverwoods 1 NE 3.09 in 0700 AM 05/18 Coal City 4 NNW 3.08 in 0700 AM 05/18 Flossmoor 1 SE 3.08 in 0700 AM 05/18 Carbon Hill 3 N 3.08 in 0700 AM 05/18 Highland 0.7 SW 3.08 in 0700 AM 05/18 Carbon Hill 3 NNW 3.07 in 0700 AM 05/18 Elgin 3 W 3.07 in 0700 AM 05/18 Elmhurst 1 SW 3.05 in 0700 AM 05/18 Northfield 3.01 in 0740 AM 05/18 Bull Valley 2 WNW 3.01 in 0800 AM 05/18 Morris 1 NW 2.94 in 0800 AM 05/18 Barrington 2.93 in 0800 AM 05/18 Naperville 2.93 in 0600 AM 05/18 Arlington Heights 2.92 in 0600 AM 05/18 Sleepy Hollow 1 W 2.92 in 0700 AM 05/18 Bannockburn 2.92 in 0700 AM 05/18 Long Lake 2.90 in 0800 AM 05/18 Mundelein 1 NNE 2.90 in 0800 AM 05/18 Fox Lake Hills 2.90 in 0700 AM 05/18 Evanston 2.88 in 0700 AM 05/18 Cissna Park 1 S 2.87 in 0700 AM 05/18 Batavia 2.86 in 0600 AM 05/18 Morris 2 W 2.86 in 0700 AM 05/18 Peotone 2.86 in 0700 AM 05/18 Peotone 2.86 in 0700 AM 05/18 Paxton 2 WSW 2.85 in 0630 AM 05/18 Dwight 2.83 in 0700 AM 05/18 Elgin 3 ENE 2.81 in 0830 AM 05/18 Crescent City 2 N 2.80 in 0600 AM 05/18 Elburn 2.80 in 0700 AM 05/18 Forest Lake 1 SSW 2.80 in 0700 AM 05/18 McHenry 1 SE 2.78 in 0915 AM 05/18 Bloomingdale 1 SSE 2.77 in 0700 AM 05/18 Batavia 1 NW 2.77 in 0530 AM 05/18 Griffith 2.76 in 0600 AM 05/18 Batavia 1 NNW 2.75 in 0730 AM 05/18 Palatine 1 NNE 2.72 in 0700 AM 05/18 Naperville 1 W 2.72 in 0920 AM 05/18 Lisbon 5 S 2.72 in 0930 AM 05/18 Batavia 1 NNW 2.72 in 0730 AM 05/18 Batavia 1 NW 2.72 in 0700 AM 05/18 Elgin 2.70 in 0700 AM 05/18 Arlington Heights 2 NNW 2.69 in 0700 AM 05/18 Wonder Lake 2.69 in 0700 AM 05/18 Highwood 2.67 in 0600 AM 05/18 Arlington Heights 1 W 2.66 in 0700 AM 05/18 Arlington Heights 1 SW 2.63 in 0600 AM 05/18 Lake Station 3 NNW 2.63 in 0725 AM 05/18 Sauk Village 2 SSE 2.62 in 0700 AM 05/18 Dwight 4 NNW 2.61 in 0700 AM 05/18 St. Anne 3 NNE 2.60 in 0700 AM 05/18 Aurora 2 W 2.60 in 0700 AM 05/18 Winthrop Harbor 2.60 in 0800 AM 05/18 St. Anne 2.60 in 0700 AM 05/18 Elgin 2.59 in 0800 AM 05/18 Elgin 1 SSW 2.59 in 0800 AM 05/18 St. Charles 1 ENE 2.58 in 0800 AM 05/18 Batavia 2.57 in 0600 AM 05/18 Sauk Village 3 S 2.57 in 0700 AM 05/18 Ashkum 6 E 2.56 in 0700 AM 05/18 Griffith 2.56 in 0700 AM 05/18 Momence 5 ENE 2.56 in 0800 AM 05/18 Aurora 4 ESE 2.55 in 0700 AM 05/18 Aurora 3 WSW 2.55 in 0720 AM 05/18 Winthrop Harbor 1 SW 2.55 in 0616 AM 05/18 Flossmoor 1 SSW 2.54 in 0700 AM 05/18 Medinah 2.54 in 1004 AM 05/18 Zion 1 NW 2.54 in 0730 AM 05/18 Glen Ellyn 1 SW 2.53 in 0800 AM 05/18 Ottawa - Buffalo Rock SP 2.53 in 0740 AM 05/18 Huntley 2 SW 2.51 in 0700 AM 05/18 St. John 3 SSE 2.50 in 0700 AM 05/18 Mundelein 4 WSW 2.49 in 0700 AM 05/18 Hammond 1 SSW 2.48 in 0800 AM 05/18 Gibson City 3 WNW 2.47 in 0700 AM 05/18 Oswego 3 NW 2.47 in 0730 AM 05/18 Sugar Grove 1 NNW 2.46 in 0700 AM 05/18 Plano 2.45 in 0700 AM 05/18 Lindenhurst 1 NE 2.45 in 0800 AM 05/18 Mundelein 2 WNW 2.45 in 0700 AM 05/18 Greenwood 1 ESE 2.44 in 0700 AM 05/18 Oswego 4 SE 2.43 in 0700 AM 05/18 Hoffman Estates 2.41 in 0700 AM 05/18 Boulder Hill 1 NNE 2.41 in 0700 AM 05/18 South Elgin 0.9 WSW 2.39 in 0900 AM 05/18 Homewood 2.36 in 0700 AM 05/18 Chebanse 1 ENE 2.34 in 0400 AM 05/18 Schererville 1 E 2.34 in 0800 AM 05/18 Aurora 2.32 in 0700 AM 05/18 Chebanse 2.32 in 0600 AM 05/18 Beecher 4 ENE 2.32 in 0800 AM 05/18 Schererville 1 E 2.31 in 0700 AM 05/18 Lake Zurich 1 N 2.30 in 0600 AM 05/18 Melvin 4 WSW 2.29 in 0700 AM 05/18 Lindenhurst 1 NNW 2.29 in 0700 AM 05/18 Romeoville 3 NW 2.29 in 0740 AM 05/18 Ogden Dunes 2.29 in 0530 AM 05/18 Bourbonnais 2.27 in 0700 AM 05/18 Park Forest 1 WNW 2.25 in 0730 AM 05/18 St. Charles 1 SSW 2.25 in 0730 AM 05/18 Grandwood Park 1 SE 2.22 in 0700 AM 05/18 Park Forest 1 NNE 2.20 in 0700 AM 05/18 Geneva 2 WNW 2.19 in 0700 AM 05/18 Irwin 3 W 2.18 in 0700 AM 05/18 Marengo 2.18 in 0700 AM 05/18 Lansing 2.18 in 0700 AM 05/18 Oswego 1 SSE 2.17 in 0700 AM 05/18 Aurora 4 ESE 2.16 in 0700 AM 05/18 Lake Holiday 2.16 in 0700 AM 05/18 Woodstock 4 SW 2.15 in 0700 AM 05/18 Hobart 1 ENE 2.15 in 0600 AM 05/18 Clifton 1 WNW 2.11 in 0600 AM 05/18 Beecher 3 SE 2.08 in 0700 AM 05/18 Goodenow 2 WSW 2.05 in 0800 AM 05/18 Somonauk 2 NE 2.04 in 0600 AM 05/18 Goodenow 2 NNE 2.03 in 0700 AM 05/18 Sugar Grove 1 NNE 2.01 in 0700 AM 05/18 Marseilles 2 WSW 1.99 in 0820 AM 05/18 Mendota 1.98 in 0730 AM 05/18 Kaneville 3 NNW 1.94 in 0700 AM 05/18 Morocco 1.93 in 0600 AM 05/18 Johnsburg 2 SSE 1.91 in 0630 AM 05/18 Streator 1 WSW 1.85 in 0700 AM 05/18 Chatsworth 1 S 1.78 in 0700 AM 05/18 Mount Ayr 5 ENE 1.73 in 0600 AM 05/18 Fair Oaks 4 NE 1.70 in 0700 AM 05/18 Ottawa 1.68 in 0629 AM 05/18 Nelson 3 NNW 1.63 in 0800 AM 05/18 Baileys Corner 5 S 1.63 in 0500 AM 05/18 Stoutsburg 1 WNW 1.61 in 0800 AM 05/18 Sycamore 1.60 in 0700 AM 05/18 Genoa 1.51 in 0700 AM 05/18 Ottawa 1 N 1.50 in 0700 AM 05/18 Cortland 1.49 in 0700 AM 05/18 DeKalb 1.49 in 0700 AM 05/18 Durand 4 NE 1.44 in 0900 AM 05/18 DeKalb 1.42 in 0700 AM 05/18 Rockford 2 ENE 1.39 in 0900 AM 05/18 Rockford 1.39 in 0700 AM 05/18 Roselawn 3 ENE 1.37 in 0700 AM 05/18 Stoutsburg 1 SW 1.36 in 0700 AM 05/18 Kentland 1.36 in 0700 AM 05/18 Rensselaer 2 SW 1.36 in 0730 AM 05/18 Rensselaer 4 N 1.34 in 0700 AM 05/18 DeMotte 4 NNW 1.34 in 0800 AM 05/18 Collegeville 1.33 in 0600 AM 05/18 Rockford 3 WSW 1.31 in 0700 AM 05/18 Kentland 2 SSE 1.31 in 0700 AM 05/18 Machesney Park 1 NW 1.29 in 0500 AM 05/18 Valparaiso 1.29 in 0924 AM 05/18 Valparaiso 4 SW 1.28 in 0600 AM 05/18 South Beloit 2 SE 1.27 in 0700 AM 05/18 Wheatfield 3 SSE 1.27 in 0814 AM 05/18 Boone Grove 2 WNW 1.25 in 0645 AM 05/18 Timberlane 1 SW 1.24 in 0700 AM 05/18 Malta 3 ESE 1.24 in 0700 AM 05/18 Capron 1.23 in 0700 AM 05/18 La Salle 1.23 in 0700 AM 05/18 Dixon 1 NE 1.21 in 0700 AM 05/18 Rockford 4 S 1.21 in 0700 AM 05/18 Valparaiso 2 NW 1.21 in 0700 AM 05/18 DeMotte 1.20 in 0600 AM 05/18 Baileys Corner 5 W 1.20 in 0700 AM 05/18 Mendota 1 SE 1.20 in 0600 AM 05/18 DeMotte 1.18 in 0800 AM 05/18 Remington 1.16 in 0800 AM 05/18 Valparaiso 2 NNW 1.15 in 0850 AM 05/18 New Milford 3 W 1.14 in 0700 AM 05/18 Roscoe 2 ESE 1.13 in 0630 AM 05/18 Hebron 1 W 1.13 in 0929 AM 05/18 Valparaiso 1 N 1.13 in 0700 AM 05/18 Roscoe 1.13 in 0630 AM 05/18 Boone Grove 4 NNE 1.12 in 0630 AM 05/18 Valparaiso 2 NE 1.08 in 0700 AM 05/18 Valparaiso 2 NNE 1.08 in 0900 AM 05/18 Troy Grove 4 ESE 1.06 in 0800 AM 05/18 Paw Paw 2 S 1.03 in 0700 AM 05/18 Wheeler 1 SE 1.01 in 0800 AM 05/18
Rainfall Stats
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| Chicago Record Rainfall Information and Historical Context (as of May 19th) |
During the 4 day period of May 14-17, Chicago recorded 7.88" of rain, making it the 4th wettest 4 day stretch in Chicago recorded weather history dating back to 1871.
The top 4 wettest 4 day stretches in Chicago are:
1) 12.84” (Aug 13-16, 1987)
2) 8.61” (July 21-24, 2011)
3) 8.45” (Sept 11-14, 2008)
4) 7.88” (May 14-17, 2020)
That 7.88" of rainfall is more than has fallen during 1759 of the 1792 months of weather records in Chicago, only 33 months (less than 2%) have had more rain during the entire month than what fell in just that 4 day stretch.
May 2020 is only 0.06" away from breaking the record for wettest May ever in Chicago (as of 7 am on the 18th, so still nearly 2 weeks to potentially add to that total).
The previous wettest May in Chicago was last year with 8.25". Crazily, prior to last year, the wettest May on record as 2018 with 8.21". So in all likelihood Chicago is about to see back to back to back record breaking wet Mays in Chicago!
Finally, prior to the back to back to back record wet Mays, the 7.88" of rain that fell May 14-17th would have been enough to break the record rainfall for the entire month of May prior to 2018, all in just 4 days.
Tornadoes
There were two brief tornadoes that occurred on Sunday, May 17 based on trained spotter reports. One was in northwest Kendall County, southeast of the town of Sandwich. The other was near the Grundy and Will County border just west of Braidwood and just west of I-55.
Additional Info
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| 2 p.m. May 17 hand analyzed surface map depicting the warm frontal zone over the area and high moisture being advected into the region. Temperatures near 70 also supported low-level instability, not much, but enough for some rotating updrafts. Note the southeast winds near the warm front and south of it for a ways resulted in veering low-level profiles to support the threat of brief tornadoes. | 6 p.m. May 17 850-300mb winds | 6 p.m. May 17 precipitable waters |
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| 6 p.m. May 17 mixed layer CAPE. | 6 p.m. May 17 effective helicity. | 7 a.m. May 17 NWS Central Illinois weather balloon data (sounding). |
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Media use of NWS Web News Stories is encouraged! Please acknowledge the NWS as the source of any news information accessed from this site. Additional recaps can be found on the NWS Chicago Past Events Page |
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