A strong cold front will gradually push through the Eastern U.S. over the next couple of days and will bring heavy rain and severe weather, primarily damaging winds . Excessive rainfall may result in flash flooding in the central Great Lakes and central Appalachians. Flash flood watches are currently in effect from the coastal Carolinas to the Great Lakes. Read More >
Overview
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Memorial Day thunderstorms produced widespread large hail and wind damage across northern Illinois and northwest Indiana. There were five brief EF-0 tornadoes confirmed. See this Public Information Statement for the details. In addition to the severe weather, heavy rainfall and flooding were reported in many locations. With the 1.92" of rain recorded at Chicago O'Hare, this set a daily record for precipitation for May 27th, as well as making it the wettest Memorial Day on record. |
 Preliminary Overview Map - Updated May 29 |
Tornadoes & Wind:
See this PUBLIC INFORMATION STATEMENT for a summary.
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Tornado - Plattville, IL Area
Track Map  
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Tornado - Romeoville, IL
Track Map 
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Tornado - Paw Paw, IL Area
Track Map 
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Tornado - Sauk Village, IL
Track Map 
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Tornado - Dyer, IN
Track Map 
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Straight-Line Wind Damage - Benton County, IN
Track Map 
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Thank you to Emergency Management, law enforcement, trained storm spotters, and academic partners for their help in assisting with the damage assessment.
The Enhanced Fujita (EF) Scale classifies tornadoes into the following categories:
| EF0 Weak 65-85 mph |
EF1 Moderate 86-110 mph |
EF2 Significant 111-135 mph |
EF3 Severe 136-165 mph |
EF4 Extreme 166-200 mph |
EF5 Catastrophic 200+ mph |
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Hail:
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| Photo by Cat Barr Schuyler Aurora, IL |
Photo by William Bell Oswego, IL |
Photo by Jason Fisher Fowler, IN |
Photo by Alex Pipkalejs Romeoville, IL |
Flooding:
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| Photo by Dolph Zielinski Elmhurst, IL |
Photo by Tim North Aurora, IL |
Photo by Bill Alstrom Wheatland Township, IL |
Photos & Video
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| Plattville, IL (intersection of Ashley and Walker) |
Yorkville, IL (Ben Smith) |
Valparaiso, IN (Stacia Meiss) |
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| Walnut, IL (Sandra Mallery-Davis) |
St. John, IN (Ellen Hanneman ) |
Radar
Radar snapshots of supercells associated with tornado reports in Lee County and Lake County IN
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| Lee County | Lake County IN |
Storm Reports
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE CHICAGO IL
907 PM CDT FRI MAY 31 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0121 PM HAIL 1.9 NE SOMONAUK 41.65N 88.66W
05/27/2019 M1.00 INCH DE KALB IL COCORAHS
CORRECTS PREVIOUS HAIL REPORT FROM 1.9 NE
SOMONAUK FOR TIME.
0144 PM HAIL NAPERVILLE 41.77N 88.15W
05/27/2019 M1.50 INCH DUPAGE IL AMATEUR RADIO
FLOODING 1 FOOT NEAR NAPERVILLE ROAD.
0145 PM TSTM WND DMG 1 N YORKVILLE 41.66N 88.45W
05/27/2019 KENDALL IL TRAINED SPOTTER
6FT DIAMETER TREE UPROOTED. TIME ESTIMATED
BY RADAR.
0148 PM TORNADO 3 NNE PLATTVILLE 41.57N 88.36W
05/27/2019 KENDALL IL TRAINED SPOTTER
A VERY BRIEF ROPE TORNADO OCCURRED IN A
FIELD SOUTH OF WALKER ROAD BETWEEN 1:48 AND
1:49 PM. LOCATION IS ESTIMATED BY RADAR AND
DETAILED SPOTTER REPORT AS WELL AS A PHOTO
TAKEN NEARBY FROM WALKER ROAD. THE TORNADO
LASTED ABOUT 30 SECONDS BEFORE DISSIPATING
AND PRODUCED NO KNOWN DAMAGE.
0150 PM HAIL AURORA 41.76N 88.31W
05/27/2019 M1.00 INCH KANE IL TRAINED SPOTTER
0155 PM HAIL OSWEGO 41.68N 88.36W
05/27/2019 M2.00 INCH KENDALL IL TRAINED SPOTTER
MULTIPLE REPORTS OF HAIL TO 2 IN OWSEGO.
WINDS TO 60 MPH.
0155 PM HAIL AURORA 41.76N 88.31W
05/27/2019 M1.00 INCH KANE IL TRAINED SPOTTER
0200 PM HEAVY RAIN OSWEGO 41.68N 88.36W
05/27/2019 M0.49 INCH KENDALL IL TRAINED SPOTTER
HEAVY RAIN IN 15 MINUTES. 6-10 OF STANDING
WATER IN NEIGHBORHOOD.
0200 PM HEAVY RAIN 1.9 NE SOMONAUK 41.65N 88.66W
05/27/2019 M3.01 INCH DE KALB IL COCORAHS
3 INCHES OF RAIN IN 30 MINUTES.
0203 PM HAIL PLAINFIELD 41.61N 88.21W
05/27/2019 M1.00 INCH WILL IL TRAINED SPOTTER
0204 PM TORNADO 2 SW ROMEOVILLE 41.62N 88.14W
05/27/2019 WILL IL NWS STORM SURVEY
TORNADO WITH ESTIMATED MAXIMUM WINDS OF 85
MPH TRACKED FOR 3.3 MILES EASTWARD ACROSS
THE SOUTH SIDE OF THE TOWN OF ROMEOVILLE.
ESTIMATED MAXIMUM PATH WIDTH WAS 300 YARDS.
DAMAGE WAS LIGHT ROOF DAMAGE, LEANING
UTILITY POLES, AND DOWNED LIMBS.
0207 PM HAIL 3 S NAPERVILLE 41.74N 88.15W
05/27/2019 M1.00 INCH DUPAGE IL TRAINED SPOTTER
95TH AND NAPERVILLE PLAINFIELD ROAD IN SOUTH
NAPEVILLE.
0208 PM TSTM WND GST BOLINGBROOK 41.70N 88.07W
05/27/2019 M60 MPH WILL IL TRAINED SPOTTER
0209 PM HAIL BOLINGBROOK 41.70N 88.07W
05/27/2019 M1.25 INCH WILL IL TRAINED SPOTTER
0210 PM HAIL BOLINGBROOK 41.70N 88.07W
05/27/2019 M1.50 INCH WILL IL TRAINED SPOTTER
0210 PM TSTM WND DMG 2 NNE CRYSTAL LAWNS 41.59N 88.15W
05/27/2019 WILL IL NWS EMPLOYEE
TREE UPROOTED ALONG RENWICK ROAD. TIME
ESTIMATED BY RADAR.
0211 PM HAIL ROMEOVILLE 41.65N 88.09W
05/27/2019 M1.00 INCH WILL IL EMERGENCY MNGR
0213 PM HAIL ROMEOVILLE 41.65N 88.09W
05/27/2019 M1.25 INCH WILL IL OFFICIAL NWS OBS
HIGHEST GUST TO 48 MPH AT NWS IN ROMEOVILE,
IL.
0215 PM HAIL 3 WSW BOLINGBROOK 41.69N 88.13W
05/27/2019 M1.00 INCH WILL IL TRAINED SPOTTER
TIME ESTIMATED BY RADAR.
0216 PM HAIL BOLINGBROOK 41.70N 88.07W
05/27/2019 M1.00 INCH WILL IL TRAINED SPOTTER
0220 PM HEAVY RAIN 2.8 SSW NAPERVILLE 41.74N 88.17W
05/27/2019 M1.32 INCH DUPAGE IL COCORAHS
HEAVY DOWNPOUR 2:04 TO 2:20.
0222 PM HEAVY RAIN BOLINGBROOK 41.70N 88.07W
05/27/2019 M2.00 INCH WILL IL TRAINED SPOTTER
ESTIMATED 2 INCH FLOOD DEPTH.
ASHBURY/LIBERTY.
0229 PM FLOOD NAPERVILLE 41.78N 88.15W
05/27/2019 DUPAGE IL TRAINED SPOTTER
ESTIMATED TWO FEET OF STANDING WATER
REPORTED IN ROADWAYS.
0230 PM FLOOD 5 ESE BOULDER HILL 41.67N 88.25W
05/27/2019 WILL IL DEPT OF HIGHWAYS
WHEATLAND TOWNSHIP HIGHWAY COMMISSIONER
REPORTS FLOODING OF HEGGS ROAD BETWEEN 111TH
AND 119TH.
0230 PM HAIL AURORA 41.76N 88.31W
05/27/2019 M0.88 INCH KANE IL TRAINED SPOTTER
0233 PM HEAVY RAIN WINFIELD 41.87N 88.15W
05/27/2019 M1.88 INCH DUPAGE IL EMERGENCY MNGR
FELL IN 45 MINUTES.
0235 PM TSTM WND DMG 1 ENE ORLAND PARK 41.63N 87.83W
05/27/2019 COOK IL EMERGENCY MNGR
DELAYED REPORT. A SECTION OF A TREE SNAPPED
OFF AND FELL ONTO A HOUSE APPROXIMATELY AT
8600 BLOCK OF W 145TH STREET. TIME IS
ESTIMATED BY RADAR AND EM REPORT TO HAVE
OCCURRED BETWEEN 2:30 AND 2:35 PM.
0240 PM FLOOD 1 N PALOS HILLS 41.71N 87.82W
05/27/2019 COOK IL FIRE DEPT/RESCUE
BRIDGEVIEW FD REPORTS FLOODING OF ROBERTS
ROAD UP TO 2FT IN DEPTH. WATER RESCUES ALSO
REPORTED IN PALOS HEIGHTS, CHICAGO RIDGE,
AND OAK LAWN.
0240 PM HAIL 1 NE PALOS HILLS 41.71N 87.80W
05/27/2019 E1.50 INCH COOK IL FIRE DEPT/RESCUE
BRIDGEVIEW FD REPORTS HAIL OF UP TO 1.5 IN
IN VICINITY OF STATION #2.
0240 PM TSTM WND DMG 1 N WORTH 41.70N 87.80W
05/27/2019 COOK IL FIRE DEPT/RESCUE
BRIDGEVIEW FD REPORTS WIDESPREAD DAMAGE TO
TREES AND POWERLINES FROM HAIL/WIND IN
VICINITY OF STATION #2. DAMAGE ALONG HARLEM
AVE AND CICERO AVE STRETCHED FROM
APPROXIMATELY 103RD TO 111TH.
0242 PM HAIL AURORA 41.76N 88.31W
05/27/2019 M0.88 INCH KANE IL AMATEUR RADIO
0245 PM HAIL 2 ESE LEMONT 41.66N 87.96W
05/27/2019 E1.00 INCH COOK IL PUBLIC
HAIL OF AT LEAST 1.0IN SIZE, POSSIBLY UP TO
1.5IN SIZE. TIME ESTIMATED BY RADAR.
0245 PM TSTM WND DMG ALSIP 41.67N 87.73W
05/27/2019 COOK IL BROADCAST MEDIA
BROADCAST MEDIA SHARED PICTURE OF GAS
STATION CANOPY BLOW OFF IN ALSIP. EXACT
LOCATION UNKNOWN. TIME ESTIMATED BY RADAR.
0245 PM TSTM WND DMG 2 ESE LEMONT 41.66N 87.96W
05/27/2019 COOK IL PUBLIC
TREE UPROOTED, NUMEROUS BRANCHES DOWN IN THE
AREA MAKING ROADWAYS NEAR IMPASSABLE. TIME
ESTIMATED BY RADAR.
0246 PM TSTM WND DMG EVERGREEN PARK 41.73N 87.71W
05/27/2019 COOK IL OTHER FEDERAL
REPORTS OF NUMEROUS TREES AND POWER LINES
DOWN NEAR AND AROUND THE 19TH WARD. RELAYED
BY CHICAGO OEMC AND TIME ESTIMATED BASED ON
RADAR.
0249 PM HEAVY RAIN 3 SW MIDWAY AIRPORT 41.75N 87.78W
05/27/2019 M1.20 INCH COOK IL CO-OP OBSERVER
1.20 INCHES OF RAIN MEASURED IN 19 MINUTES.
0315 PM FLOOD 3 WSW BOLINGBROOK 41.69N 88.13W
05/27/2019 WILL IL TRAINED SPOTTER
1-2 FEET OF STANDING WATER ON ROADWAYS IN
VICINITY OF WEBER AND LILY CACHE IN
BOLINGBROOK.
0326 PM HEAVY RAIN 3 SW MIDWAY AIRPORT 41.75N 87.79W
05/27/2019 M1.73 INCH COOK IL CO-OP OBSERVER
FELL IN 48 MINUTES. UPDATE TO EARLIER
REPORT.
0335 PM HEAVY RAIN WARRENVILLE 41.82N 88.18W
05/27/2019 M1.90 INCH DUPAGE IL PUBLIC
TOTAL RAINFALL OVER ABOUT 1 HOUR PERIOD.
DURATION ESTIMATED BY RAINFALL.
0347 PM FLOOD NAPERVILLE 41.77N 88.15W
05/27/2019 DUPAGE IL TRAINED SPOTTER
REPORTED AT NAPERVILLE. FLOODING 1 FOOT DEEP
GARTNER AVE AND CHARLES ROAD.
0406 PM HAIL STEGER 41.47N 87.64W
05/27/2019 M1.50 INCH WILL IL EMERGENCY MNGR
0409 PM HAIL PARK FOREST 41.48N 87.69W
05/27/2019 M1.25 INCH COOK IL TRAINED SPOTTER
0410 PM TSTM WND DMG SUBLETTE 41.64N 89.23W
05/27/2019 LEE IL PUBLIC
TREES AND LIMBS DOWN.
0415 PM FLOOD CHICAGO RIDGE 41.71N 87.79W
05/27/2019 COOK IL PUBLIC
PUBLIC REPORTS ROADWAY FLOODING ALONG
SOUTHWEST HIGHWAY IN CHICAGO RIDGE AREA.
0415 PM TSTM WND DMG STEGER 41.47N 87.64W
05/27/2019 COOK IL LAW ENFORCEMENT
ROOF BLOWN OFF A BUILDING ON PARK AVENUE.
TIME ESTIMATED. POSSIBLE TORNADO DAMAGE.
0421 PM HAIL CRETE 41.44N 87.63W
05/27/2019 M0.88 INCH WILL IL TRAINED SPOTTER
0427 PM TORNADO 1 SSE SAUK VILLAGE 41.49N 87.55W
05/27/2019 COOK IL NWS STORM SURVEY
BRIEF TORNADO WITH MAXIMUM ESTIMATED WINDS
OF 85 MPH AND WIDTH OF 50 YARDS PRODUCED
ONLY MINOR DAMAGE TO ROOFS AND A DOWNED
LIGHT POLE ONTO A CAR.
0430 PM TSTM WND DMG AMBOY 41.71N 89.33W
05/27/2019 LEE IL EMERGENCY MNGR
CORRECTS PREVIOUS TSTM WND DMG REPORT FROM
AMBOY FOR TIME. TREES AND LIMBS DOWN.
0432 PM TORNADO 2 SSW DYER 41.48N 87.52W
05/27/2019 LAKE IN TRAINED SPOTTER
A COMBINATION OF TRAINED SPOTTER REPORTS
(RELAYED BY HAMS IN REAL TIME) AND DAMAGE
PICTURES RELAYED BY LAKE CO DEPUTY EM
INDICATE BRIEF TORNADO OCCURRED NEAR E SAUK
TRAIL AND HART STREET.
0433 PM TORNADO 2 SW PAW PAW 41.67N 89.00W
05/27/2019 LEE IL BROADCAST MEDIA
VIDEO ON TWITTER OF A BRIEF TORNADO NEAR PAW
PAW. TIME ESTIMATED BASED ON RADAR.
0435 PM HEAVY RAIN 1 NE LYNWOOD 41.54N 87.53W
05/27/2019 M0.97 INCH COOK IL AWOS
LANSING AIRPORT MEASURED 0.97 INCHES OF
RAINFALL IN 20 MINUTES.
0500 PM FLOOD HICKORY HILLS 41.72N 87.83W
05/27/2019 COOK IL PUBLIC
PICTURES SHARED ON SOCIAL MEDIA OF MINOR
STREET FLOODING AND FILLING OF DETENTION
PONDS IN HICKORY HILLS NEAR 95TH STREET AND
84TH AVENUE.
0510 PM FLOOD NAPERVILLE 41.78N 88.15W
05/27/2019 DUPAGE IL UNKNOWN
NAPERVILLE COMMUNITY TELEVISION REPORTS
FLOODING OF WEBSTER AND EAGLE STREETS AS
WELL AS 5TH AT MILL.
0520 PM HAIL VALPARAISO 41.47N 87.06W
05/27/2019 M1.50 INCH PORTER IN TRAINED SPOTTER
0553 PM TSTM WND DMG 3 SW WOODWORTH 40.64N 87.88W
05/27/2019 IROQUOIS IL TRAINED SPOTTER
DELAYED REPORT RELAYED VIA SOCIAL MEDIA FROM
2 SEPARATE SPOTTER REPORTS. TWO SNAPPED
EVERGREENS BLOCKING IL-49 BETWEEN CRESCENT
CITY AND CISSNA PARK. TIME ESTIMATED BY
RADAR.
0615 PM HEAVY RAIN 3 SW MIDWAY AIRPORT 41.74N 87.78W
05/27/2019 M2.56 INCH COOK IL CO-OP OBSERVER
0618 PM TSTM WND DMG 4 WNW EARL PARK 40.69N 87.48W
05/27/2019 BENTON IN EMERGENCY MNGR
POWER POLES DOWN NEAR N800W AND W600N. TIME
ESTIMATED BY RADAR.
0640 PM TSTM WND DMG 3 NW OXFORD 40.56N 87.29W
05/27/2019 BENTON IN EMERGENCY MNGR
DESTRUCTION OF OUTBUILDING.
0641 PM HAIL 3 N OXFORD 40.56N 87.24W
05/27/2019 M1.00 INCH BENTON IN PUBLIC
NEAR BENTON CENTRAL HIGH SCHOOL. TIME
ESTIMATED BASED ON RADAR.
0641 PM TSTM WND DMG 3 N OXFORD 40.56N 87.24W
05/27/2019 BENTON IN PUBLIC
REPORTS OF TREE DAMAGE NEAR BENTON CENTRAL
HS RELAYED BY MEDIA. TIME ESTIMATED BASED ON
RADAR.
0644 PM TSTM WND GST 3 SE FOWLER 40.59N 87.27W
05/27/2019 M71 MPH BENTON IN MESONET
MEASURED GUSTS AT A PERSONAL WEATHER
STATION. ADDITIONAL MEASURED 70 MPH WIND
GUSTS IN OTTERBEIN.
0646 PM HAIL OXFORD 40.52N 87.25W
05/27/2019 M1.75 INCH BENTON IN EMERGENCY MNGR
0700 PM TSTM WND DMG OTTERBEIN 40.49N 87.10W
05/27/2019 BENTON IN PUBLIC
POWER POLES DOWN IN OTTERBEIN. RELAYED BY
MEDIA AND TIME ESTIMATED BASED ON RADAR.
Rain Reports
Public Information Statement
National Weather Service Chicago IL
1007 AM CDT Tue May 28 2019
...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 Tuesday(05/28/19)...
Illinois Rain
Location (County): fall (inches)
Somonauk 2NE (De Kalb).......................3.76
Willow Springs (Cook)........................3.60
Somonauk (De Kalb)...........................3.49
Worth (Cook).................................2.62
Elmhurst 2SE (Du Page).......................2.57
Midway Coop (Cook)...........................2.56
Oak Lawn 2SE (Cook)..........................2.54
Villa Park 1NW (Du Page).....................2.52
Aurora 4NE (Du Page).........................2.50
North Aurora 2NE (Kane)......................2.45
Elmhurst (Du Page)...........................2.25
Elmhurst 1ESE (Du Page)......................2.23
Lisle Morton Arb (Du Page)...................2.22
Elmwood Park 1ESE (Cook).....................2.18
Oak Lawn (Cook)..............................2.17
Naperville 1NW (Du Page).....................2.16
Wheaton 2NNE (Du Page).......................2.13
Aurora 4SE (Du Page).........................2.12
Glen Ellyn 1WSW (Du Page)....................2.08
Bridgeview 1NNW (Cook).......................2.07
Aurora 4SE (Du Page).........................2.07
Batavia (Kane)...............................2.06
Oak Park 1NNE (Cook).........................2.05
Naperville 4SSW (Will).......................2.03
Aurora (Kane)................................2.00
Darien (Du Page).............................2.00
Plainfield 3ESE (Will).......................1.99
Lombard 1NNW (Du Page).......................1.93
Ohare Airport (Cook).........................1.92
Burr Ridge 2SW (Du Page).....................1.89
Countryside 1ENE (Cook)......................1.86
Aurora (Kane)................................1.85
Chicago Ridge (Cook).........................1.85
Batavia 1WSW (Kane)..........................1.84
Homer Glen 1ENE (Will).......................1.82
Oak Park 2S (Cook)...........................1.77
Sugar Grove 1NE (Kane).......................1.76
Sugar Grove 1ENE (Kane)......................1.76
Palos Park 1SW (Cook)........................1.73
Downers Grove 0.4NNE (Du Page)...............1.67
Westmont 1SSW (Du Page)......................1.66
Amboy (Lee)..................................1.65
Romeoville (Will)............................1.63
Chicago 6ESE (Cook)..........................1.55
Oak Park 1SW (Cook)..........................1.55
Westmont (Du Page)...........................1.53
Earlville 3S (La Salle)......................1.52
West Chicago (Du Page).......................1.51
Harwood Heights (Cook).......................1.47
Chicago 6NNE (Cook)..........................1.45
Batavia 1WNW (Kane)..........................1.42
Geneva 4WSW (Kane)...........................1.40
Lansing (Cook)...............................1.38
Batavia 2WNW (Kane)..........................1.38
Geneva 1SSW (Kane)...........................1.38
Park Ridge (Cook)............................1.37
Mendota (La Salle)...........................1.30
Midway (Cook)................................1.28
Park Ridge 1WNW (Cook).......................1.27
Lincolnwood 2E (Cook)........................1.27
Plainfield 2SSE (Will).......................1.26
Plainfield (Will)............................1.24
Midlothian 1SE (Cook)........................1.15
Bull Valley 2WNW (McHenry)...................1.15
La Grange Park 1SSW (Cook)...................1.13
Mendota (La Salle)...........................1.12
Earlville 5NNE (De Kalb).....................1.03
Oswego 5SSE (Kendall)........................1.00
Emington 2SSE (Livingston)...................0.92
Shabbona (De Kalb)...........................0.92
Paw Paw (Lee)................................0.86
St. Charles (Kane)...........................0.85
St Anne (Kankakee)...........................0.85
Roselle 1ESE (Du Page).......................0.78
Park Forest (Cook)...........................0.78
Park Forest 1NNE (Cook)......................0.74
Chebanse (Kankakee)..........................0.71
Woodstock 1SSW (McHenry).....................0.71
South Beloit 2SE (Winnebago).................0.69
Homewood (Cook)..............................0.64
Elk Grove Village 2WSW (Cook)................0.63
Elburn (Kane)................................0.63
Elburn (Kane)................................0.62
Pontiac 1SE (Livingston).....................0.62
Elk Grove Village 1ESE (Cook)................0.61
Waukegan (Lake)..............................0.59
St. Charles 6NW (Kane).......................0.57
Fox Lake 2SE (Lake)..........................0.57
Schaumburg 2E (Cook).........................0.55
Lake Villa 1SSW (Lake).......................0.55
Wonder Lake 1WNW (McHenry)...................0.55
Hoffman Estates 2SE (Cook)...................0.53
Steward (Lee)................................0.53
Streamwood 1W (Cook).........................0.52
Woodstock 5nw (McHenry)......................0.52
Roscoe 2ESE (Winnebago)......................0.51
Roscoe 2se (Winnebago).......................0.51
Arlington Heights 1SW (Cook).................0.50
Pontiac (Livingston).........................0.50
Park Forest 1SW (Cook).......................0.49
Ashkum 5.6E (Iroquois).......................0.48
Barrington (Lake)............................0.42
Arlington Heights 3SSW (Cook)................0.42
Flossmoor (Cook).............................0.41
Rochelle (Ogle)..............................0.41
Elgin (Kane).................................0.40
Hebron (McHenry).............................0.40
Lakemoor 2NW (McHenry).......................0.39
Dwight (Livingston)..........................0.38
Genoa (De Kalb)..............................0.38
Elgin 2W (Kane)..............................0.38
Waukegan 2N (Lake)...........................0.38
Belvidere (Boone)............................0.37
Hoffman Estates 5W (Cook)....................0.37
De Kalb (De Kalb)............................0.37
Lake Villa 2WSW (Lake).......................0.37
Lockport 1SE (Will)..........................0.37
Rochelle (Ogle)..............................0.37
De Kalb 1SW (De Kalb)........................0.35
Buffalo Grove 2N (Lake)......................0.35
Cary (McHenry)...............................0.35
Wheeling (Cook)..............................0.35
New Lenox 3E (Will)..........................0.34
Rockford 1NW (Winnebago).....................0.32
Watseka (Iroquois)...........................0.32
Dixon 3NNW (Lee).............................0.30
Lake Forest 2NNE (Lake)......................0.30
Algonquin 1N (McHenry).......................0.30
McHenry (Stratton Lock & Dam) (McHenry)......0.30
Marseilles Lock & Dam (La Salle).............0.30
Kingston 2WNW (De Kalb)......................0.29
Watseka 6.9WNW (Iroquois)....................0.29
Elgin 8WSW (Kane)............................0.29
Riverwoods (Lake)............................0.29
Crystal Lake 1WSW (McHenry)..................0.29
Botanic Gardens (Cook).......................0.28
Palatine 1NNE (Cook).........................0.28
Mundelein (Lake).............................0.28
Glencoe (Cook)...............................0.27
Ashton (Lee).................................0.27
Highwood 1S (Lake)...........................0.27
Rockford (Winnebago).........................0.27
Plainfield 5SW (Kendall).....................0.26
Lake Bluff 1W (Lake).........................0.26
Rockford 3NE (Winnebago).....................0.26
Rockford 2ENE (Winnebago)....................0.26
Mundelein (Lake).............................0.26
Lake Zurich 1N (Lake)........................0.25
Joliet 2n (Will).............................0.25
Dixon (Lee)..................................0.24
Winthrop Harbor (Lake).......................0.24
Winthrop Harbor 1SSW (Lake)..................0.24
Rockford 6S (Winnebago)......................0.24
Cropsey 1NE (Livingston).....................0.23
Harvard (McHenry)............................0.22
Chatsworth (Livingston)......................0.20
Morris 5NNW (Grundy).........................0.20
Chatsworth (Livingston)......................0.20
Morris (Grundy)..............................0.19
Capron (Boone)...............................0.19
Joliet (Will)................................0.18
Coal City 3N (Grundy)........................0.17
New Lenox 2SE (Will).........................0.17
De Kalb (De Kalb)............................0.16
Brandon Road Lock & Dam (Will)...............0.16
Crete 3E (Will)..............................0.15
Peru (La Salle)..............................0.15
Streator 1WSW (La Salle).....................0.14
Elwood 5NE (Will)............................0.14
Manhattan 5ENE (Will)........................0.14
Bourbonnais (Kankakee).......................0.13
Streator (Livingston)........................0.13
Manhattan (Will).............................0.12
Morris (Grundy)..............................0.12
Channahon 2SSE (Will)........................0.11
Ottawa (La Salle)............................0.10
Minooka (Grundy).............................0.09
Oglesby 1ESE (La Salle)......................0.09
Dwight 4NNW (Grundy).........................0.08
Coal City (Grundy)...........................0.08
Kankakee (Kankakee)..........................0.07
Herscher 3E (Kankakee).......................0.07
Ottawa (La Salle)............................0.07
Peru 1ENE (La Salle).........................0.07
Manhattan 1ESE (Will)........................0.07
Coal City 4NNW (Grundy)......................0.06
Carbon Hill 3.1N (Grundy)....................0.06
Channahon 1NNE (Will)........................0.06
Manhattan 2SE (Will).........................0.06
Morris 6ESE (Grundy).........................0.05
Morris 2SSE (Grundy).........................0.05
Ottawa 1NW (La Salle)........................0.04
Ottawa 2N (La Salle).........................0.04
La Salle (La Salle)..........................0.04
Wilmington 3SE (Will)........................0.04
Monee (Will).................................0.04
Buckley (Iroquois)...........................0.03
Romeoville (Will)............................0.03
Paxton (Ford)................................0.01
Beecher 3SSE (Will)..........................0.01
Peotone (Will)...............................0.01
Manteno 2NW (Kankakee)......................TRACE
Indiana Rain
Location (County): fall (inches)
Chesterton 4E (Porter).......................2.05
Griffith 1N (Lake)...........................1.38
Valparaiso 6NW (Porter)......................1.06
Morocco (Newton).............................0.93
Porter 1S (Porter)...........................0.90
Portage 3E (Porter)..........................0.84
Rensselaer 5NW (Jasper)......................0.79
Rensselaer 8ENE (Jasper).....................0.69
Hammond 1SSW (Lake)..........................0.68
Rensselaer 4N (Jasper).......................0.61
Rensselaer (Jasper)..........................0.58
Rensselaer 2SSW (Jasper).....................0.56
Remington (Jasper)...........................0.49
Valparaiso 2WNW (Porter).....................0.48
Valparaiso 2N (Porter).......................0.45
Kentland 2SSE (Newton).......................0.35
Valparaiso 7WSW (Porter).....................0.34
Rensselaer 10NNE (Jasper)....................0.33
Valparaiso 2WSW (Porter).....................0.31
De Motte 6S (Jasper).........................0.30
Schererville 1E (Lake).......................0.19
Valparaiso 6WSW (Porter).....................0.19
Valparaiso (Porter)..........................0.17
Schererville 1E (Lake).......................0.16
Valparaiso 4SW (Porter)......................0.12
St. John (Lake)..............................0.06
Wheatfield 5W (Jasper).......................0.05
Valparaiso 6SSW (Porter).....................0.05
Crown Point (Lake)...........................0.03
De Motte 4SW (Jasper)........................0.03
Crown Point 1N (Lake)........................0.03
Hebron 1NW (Porter)..........................0.03
De Motte 1NNW (Jasper).......................0.02
De Motte 1SSW (Jasper).......................0.02
Crown Point 2WSW (Lake)......................0.01
$$
Environment
A low pressure system developing over Colorado on Sunday and lifting into eastern Nebraska by early Monday helped to organize an area of thunderstorms that produced widespread severe weather across the Plains during this period. As this low center continued into Iowa on Monday morning, the associated thunderstorms moved ahead into northern Illinois.
By noon on Monday, a warm front stretching east from the low across Illinois into southern Indiana was apparent in surface observations. Soon the thunderstorms began intensifying and becoming more organized along this warm front, with assistance from strong winds at mid and upper levels of the atmosphere.
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| Surface Map - Storms intensified along and ahead of the warm front during the afternoon |
Additional Information
The Forecast
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| SPC Day 3 Categorical Outlook | SPC Day 3 Probabilistic Outlook | SPC Day 2 Categorical Outlook | SPC Day 2 Probabilistic Outlook |
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| SPC Day 1 Categorical Outlook | SPC Day 1 Tornado Outlook | SPC Day 1 Hail Outlook | SPC Day 1 Wind Outlook |
Summaries from other NWS Offices
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