Severe thunderstorms and heavy rain may produce large to very-large hail, severe winds, tornadoes and numerous instances of flash flooding across portions of the central Plains. Scattered slow-moving storms will continue to bring a flash flooding threat to the central Gulf Coast. Elevated to critical fire weather conditions are expected across much of the western U.S.. Read More >
A strong weather system took an anomalous path for April 27 and brought a combination of widespread precipitation and cold air. This allowed for rain to change over to snow across northern Illinois and northern Indiana. Precipitation type at times varied, wobbling between snow and rain (even ice pellets in some places). Snow at times was heavy, sharply reducing visibility causing patches of hazardous travel, and by late afternoon into evening causing accumulation on some roadways. With temperatures around freezing, slickness developed on some roads as well. |
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Fast Facts
For more snow climatology for our area, see our local snow climatology page.
Snow/Ice Totals
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| Map of 24 hour snowfalls |
Public Information Statement National Weather Service Chicago IL 0948 AM CDT Sun Apr 28 2019 ...Morning Snowfall Roundup... The following are snow amounts for the previous 24 hours as measured in the morning by NWS Cooperative Observers and CoCoRaHS observers. Observations are usually taken at 7 AM. 24-hour Snowfall Amounts for Sunday(04/28/19)... Northern Illinois Snow Location (County): fall(inches) St. Charles 6NW (Kane)........................6.0 Roscoe 2ESE (Winnebago).......................5.1 Roscoe 2se (Winnebago)........................5.1 Wheaton 2NNE (Du Page)........................5.0 St. Charles (Kane)............................5.0 Hoffman Estates 2SE (Cook)....................4.9 Gilberts (Kane)...............................4.9 Elgin 2W (Kane)...............................4.5 Lake Zurich (Lake)............................4.5 Elk Grove Village 2WSW (Cook).................4.3 Genoa (De Kalb)...............................4.1 Capron (Boone)................................4.0 Schaumburg 2E (Cook)..........................4.0 Roselle 1ESE (Du Page)........................4.0 Algonquin 1N (McHenry)........................4.0 Mundelein (Lake)..............................4.0 Hebron (McHenry)..............................3.8 Bull Valley 2WNW (McHenry)....................3.7 Rockford (Winnebago)..........................3.7 Rockford 1NW (Winnebago)......................3.5 Woodstock (McHenry)...........................3.5 Mundelein 2WNW (Lake).........................3.2 Woodstock 4SW (McHenry).......................3.2 Elk Grove Village 1ESE (Cook).................3.1 Elburn (Kane).................................3.0 Palatine 1E (Cook)............................3.0 Elburn (Kane).................................3.0 De Kalb 1SW (De Kalb).........................2.8 Glen Ellyn 2SSE (Du Page).....................2.8 Highwood 1S (Lake)............................2.8 De Kalb (De Kalb).............................2.7 Fox Lake 2SE (Lake)...........................2.7 Elgin (Kane)..................................2.6 Park Ridge (Cook).............................2.6 Botanic Gardens (Cook)........................2.5 Elmhurst (Du Page)............................2.5 Gurnee 2W (Lake)..............................2.5 Ohare Airport (Cook)..........................2.5 Oak Park 1NNE (Cook)..........................2.0 La Grange Park 1SSW (Cook)....................2.0 Midway Coop (Cook)............................1.7 Batavia (Kane)................................1.6 Cortland (De Kalb)............................1.6 Oak Park 2S (Cook)............................1.5 Naperville 1NW (Du Page)......................1.5 North Aurora 2NE (Kane).......................1.5 Westmont (Du Page)............................1.5 Batavia 1WNW (Kane)...........................1.3 Harwood Heights (Cook)........................1.1 Aurora (Kane).................................1.0 Oak Lawn (Cook)...............................1.0 Countryside 1ENE (Cook).......................1.0 Dixon 3NNW (Lee)..............................1.0 Plainfield (Will).............................0.9 Lincolnwood 2E (Cook).........................0.8 Aurora 4SE (Du Page)..........................0.8 Chicago Ridge (Cook)..........................0.7 Burr Ridge 2SW (Du Page)......................0.5 Plainfield 5SW (Kendall)......................0.5 Worth (Cook)..................................0.4 Romeoville (Will).............................0.4 Barrington (Lake).............................0.3 Paw Paw (Lee).................................0.3 Waukegan 2N (Lake)............................0.2 Plainfield 2SSE (Will)........................0.2 Joliet 2n (Will)..............................0.2 Earlville 3S (La Salle).......................0.1 New Lenox 3E (Will)...........................0.1 Coal City 4NNW (Grundy).....................TRACE Chicago 6ESE (Cook).........................TRACE Park Forest 1SW (Cook)......................TRACE Carbon Hill 3.1N (Grundy)...................TRACE Watseka 6.9WNW (Iroquois)...................TRACE Crete 3E (Will).............................TRACE Mokena 1W (Will)............................TRACE Peotone (Will)..............................TRACE New Lenox 2SE (Will)........................TRACE Lansing (Cook)..............................TRACE Manhattan (Will)............................TRACE Peotone (Will)..............................TRACE Northwest Indiana Snow Location (County): fall(inches) Gary 5ENE (Lake)..............................0.5 Valparaiso 4SW (Porter).......................0.5 Crown Point 2WSW (Lake).....................TRACE Valparaiso 6SSW (Porter)....................TRACE Hebron 4NE (Porter).........................TRACE Valparaiso 6WSW (Porter)....................TRACE Valparaiso 1NNW (Porter)....................TRACE $$
Storm Reports
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE CHICAGO IL
612 PM CDT SUN APR 28 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0800 AM SNOW PALATINE 42.11N 88.04W
04/28/2019 M4.8 INCH COOK IL PUBLIC
0800 AM SNOW NORTH BARRINGTON 42.21N 88.13W
04/28/2019 M3.7 INCH LAKE IL PUBLIC
0717 AM SNOW 1 N BYRON 42.15N 89.25W
04/28/2019 M4.3 INCH OGLE IL PUBLIC
0657 AM SNOW 2 S MOUNT PROSPECT 42.04N 87.93W
04/28/2019 M3.0 INCH COOK IL PUBLIC
0100 AM SNOW 3 SW MIDWAY AIRPORT 41.74N 87.78W
04/28/2019 M1.7 INCH COOK IL CO-OP OBSERVER
STORM TOTAL SNOWFALL. 1.09 OF LIQUID FOR THE
EVENT.
0100 AM SNOW OHARE AIRPORT 41.98N 87.90W
04/28/2019 M2.5 INCH COOK IL OFFICIAL NWS OBS
STORM TOTAL SNOWFALL.
0100 AM SNOW NWS CHICAGO-ROMEOVILLE 41.60N 88.08W
04/28/2019 M0.4 INCH WILL IL OFFICIAL NWS OBS
STORM TOTAL SNOWFALL.
0100 AM SNOW ROCKFORD AIRPORT 42.20N 89.10W
04/28/2019 M3.7 INCH WINNEBAGO IL OFFICIAL NWS OBS
STORM TOTAL SNOWFALL.
1030 PM SNOW 1 SSW MEDINAH 41.96N 88.06W
04/27/2019 M5.1 INCH DUPAGE IL COCORAHS
STORM TOTAL SNOWFALL.
1016 PM SNOW CRYSTAL LAKE 42.24N 88.32W
04/27/2019 M2.8 INCH MCHENRY IL CO-OP OBSERVER
0951 PM SNOW 3 N CAMPTON HILLS 41.98N 88.38W
04/27/2019 M5.8 INCH KANE IL PUBLIC
0950 PM SNOW 6 NW ST. CHARLES 41.98N 88.40W
04/27/2019 M5.8 INCH KANE IL COCORAHS
0940 PM SNOW BELVIDERE 42.26N 88.84W
04/27/2019 M5.5 INCH BOONE IL BROADCAST MEDIA
0930 PM SNOW LIBERTYVILLE 42.28N 87.95W
04/27/2019 M3.1 INCH LAKE IL EMERGENCY MNGR
0930 PM SNOW NORTHBROOK 42.13N 87.83W
04/27/2019 M3.9 INCH COOK IL EMERGENCY MNGR
0930 PM SNOW ROUND LAKE 42.35N 88.09W
04/27/2019 M3.3 INCH LAKE IL PUBLIC
0913 PM SNOW PINGREE GROVE 42.07N 88.41W
04/27/2019 M4.3 INCH KANE IL TRAINED SPOTTER
0910 PM SNOW HUNTLEY 42.17N 88.43W
04/27/2019 M4.9 INCH MCHENRY IL PUBLIC
0900 PM SNOW ROCKFORD AIRPORT 42.20N 89.10W
04/27/2019 M3.7 INCH WINNEBAGO IL OFFICIAL NWS OBS
CORRECTS PREVIOUS SNOW REPORT FROM ROCKFORD
AIRPORT.
0900 PM SNOW 1 WNW CHERRY VALLEY 42.25N 88.98W
04/27/2019 M4.3 INCH WINNEBAGO IL PUBLIC
0900 PM SNOW WOODSTOCK 42.31N 88.45W
04/27/2019 M3.5 INCH MCHENRY IL CO-OP OBSERVER
0846 PM SNOW HIGHWOOD 42.20N 87.81W
04/27/2019 M2.8 INCH LAKE IL PUBLIC
0840 PM SNOW ARLINGTON HEIGHTS 42.08N 87.98W
04/27/2019 M3.5 INCH COOK IL PUBLIC
0821 PM SNOW MACHESNEY PARK 42.35N 89.04W
04/27/2019 M4.0 INCH WINNEBAGO IL PUBLIC
0800 PM SNOW 3 WNW BULL VALLEY 42.33N 88.40W
04/27/2019 M3.6 INCH MCHENRY IL TRAINED SPOTTER
0800 PM SNOW 1 NW PROSPECT HEIGHTS 42.11N 87.93W
04/27/2019 E1.8 INCH COOK IL PUBLIC
0800 PM SNOW DES PLAINES 42.04N 87.89W
04/27/2019 M2.0 INCH COOK IL PUBLIC
Meteorology
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| April 27, 12 pm Hand Analyzed Surface Map. With the area north of the warm front, a stiff easterly wind in the atmospheric low-levels along with widespread precipitation prevented temperatures from warming despite the late April sun angle. The low pressure was strong, a reflection of deep atmospheric lift, and it was quick moving to the east, preventing the warm front from reaching northern Illinois. | April 28, Morning Satellite RGB Composite Image. With the sun making a return the day after the snow, GOES-16 satellite depicted the snowfall across the area. The snow shows up as a reddish-orange hue in this composite image.​ Clodus are in blueish-lavender. |
Photos & Service
Photos
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| Machesney Park, IL courtesy of Kasandra Ann | Schaumburg, IL courtesy of Susan Chervinko |
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| East Rockford, courtesy of Jennifer Sanchez | Algonquin, IL courtesy of Marguerite Van Ness |
Service
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| April 25 Morning Weather Story | April 25 Afternoon Weather Story | April 26 Morning Weather Story |
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| April 26 Afternoon Weather Story | April 26 Morning Weather Story | April 26 Midday Weather Story |
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| Observed Snowfall |
Links
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Media use of NWS Web News Stories is encouraged! Additional recaps can be found on the NWS Chicago Science & Past Events Page. |
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