New severe thunderstorm watch #72 issued- Severe storms could reach far northwest portions of the Chicago Metro area after midnight

The Storm Prediction Center in Norman, Oklahoma has just issued Severe Thunderstorm Watch #72 for much of Iowa, southern Wisconsin and portions of extreme north and northwest Illinois valid until 5am Sunday morning.

Severe thunderstorms currently affecting portions of south central and southwest Wisconsin extending back into Iowa is expected to move to the east and south overnight and could reach northwest portions of the Chicago Metro area before daybreak Sunday morning.  Large hail, gusty winds and torrential downpours and the primary severe threats from these storms.

 

Counties in  north central Illinois included in the severe thunderstorm watch include..

Boone, McHenry, Ogle and Winnebago

 

 

ww0072_radar_big

Severe thunderstorm watch issued for areas well to the west and north of Chicago..storms could reach this area later tonight

Severe thunderstorm watch #70 has just been issued for muchs of Iowa, southwest  and south central Wisconsin and extreme northwest Illinois. The watch will be in effect until 10pm this evening.
Areas to the east of the watch in north central and northeast Illinois including the Chicago Metro area remain in a slight risk of severe thunderstorms and could be impacted by additional severe weather later this evening and overnight.

Severe thunderstorm watch #70 valid until 10pm

Severe thunderstorm watch #70 valid until 10pm

Latest in series of Winter storms hits later today and tonight

The Chicago National Weather Service Forecast Office has issued a Winter Storm Advisory for 2 to 6 inches of snow over much of the Chicago area with a Winter Storm Warning for 5 to 8 inches across southernmost portions of the area. The Winter Storm Warning will begin at Noon today for Livingston, Iroquois, and Ford Counties in Illinois and Newton, Jasper, and Benton Counties in Indiana. The Winter Storm Advisory will take effect at 6PM this afternoon for basically the remainder of the Chicago area (northeast Illinois and the northwest corner of Indiana) – see National Weather Service weather briefing pictorial below).

 Heaviest snowfall here will mostly occur this evening and overnight with the end of the evening commute impacted. The Storm will be drawing away to the east with snow diminishing and ending later Wednesday morning. Both the Warning and Advisory end at noon Wednesday with snow and blowing/drifting snow causing problems during the Wednesday morning commute. Downstate in central Illinois heavier snow will begin this afternoon and continue overnight – already this morning snow is spreading out of Missouri into southern Illinois (see weather radar mosaic ay top of page).

National Hazard Map depicts Winter Storm Warning in pink and Weather Weather Advisories in purple:

This image displays watches, warnings, statements and advisories issued by the National Weather Service

Weather briefing pictorial

Weather Story

 

Winter Storm Watch in effect Tuesday afternoon – overnight into Wednesday morning

The Chicago National Weather Service Forecast Office has issued a Winter Storm watch for potentially heavy snow across the Chicago area beginning later Tuesday afternoon – continuing overnight ending Wednesday forenoon. A total of 5 to 9 inches of snow could occur along and south of Interstate-80 with 2 to 6 inches to the north. The evening commute could be impacted Tuesday evening with the start of the snowfall and the morning commute Wednesday morning could be complicated by remnant snow as well as some blowing and drifting.

Low pressure moving out of the southern plains northeast up and just south of the Ohio River Valley is expected to spread snow as far north as our area Tuesday into Wednesday. Note on the National Hazards map below the extent of the Winter Storm Watch area (shaded in blue – running west to east through Illinois all the way to western Pennsylvania. Winter Storm Warnings and Advisories are already in effect today and tonight for portions of Kansas, Oklahoma and Missouri.

National Hazards Map

This image displays watches, warnings, statements and advisories issued by the National Weather Service

Last bands of snow showers move through the Chicago area – updated snowfall totals

At 6:45PM CST, the remaining bands of snow showers were working their way east across the Chicago area, and within a couple hour most should be east of Chicago. Some significant snowfall totals continue to come in – pretty-well solidifying the fact the maximum snowfall of 6 to 8-inches fell along and either side of the Interstate-80 corridor, but also that the city of Chicago received from 4 to 6 inches at many locations..

Latest updated snowfall reports:

Location     Snowfall (inches)

Midway Airport            5.3

Morris, Grundy Co      5.5

Grant Park Kank Co   5.0

Highwood, Lake Co    3.8

Villa Park, Du Page    4.0

Joliet                             6.2

Oak Forest                  5.5

Romeoville                  5.6

O’Hare Airport             4.0

Rockford Airport         2.5

Peotone                       6.6

South Wilmington        7.3

Seneca                        5.5

St. Charles                  4.4

Winter Storm Warning ends – Winter Weather advisory for extreme southeastern counties continues until Midnight

 The winter Storm Warning for the Chicago area has ended. As the center of low pressure draws away from our area – quickly moving off to the northeast, bands of eastward-moving remnant snow showers are drifting out over Lake Michigan and northern Indiana. Snowfall totals have just about topped out – ranging from 2 to 3 inches far north near the Illinois-Wisconsin border to generally  6 to 8-inches along the Interstate-80 corridor from central Illinois into northwest Indiana.

 The Winter Weather Advisory for Iroquois and Ford counties in Illinois and Benton, Jasper and Newton Counties in Indiana has been extended until Midnight tonight. Remnant bands of snow showers will still be crossing over these counties for a few hours longer, giving the potential of additional snow accumulation on top of an icy glaze due to an earlier period of freezing rain and sleet that has since moved on to the east.

Snow totals add up as more reports pour in

Update 4:20PM CST

The center of low pressure is moving rapidly northeast out of Indiana into southeastern Lower Michigan. Bands of light to occasionally moderate snow continue to form to our west and move over the Chicago area.

Additional recent snowfall reports:

Location     Snowfall (inches)

Morris              5.5

Grant Park      5.0

Highwood        3.8

Villa Park         4.0

Joliet                6.2

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The low pressure center continues to move of to the east through Indiana and the storm pattern has elongated into a more west-east orientation. As bands of light to occasionally moderate snow continue to develop to our west and track east,  Chicago area snowfall totals are creeping up – especially in central and southern sections. Latest reports put snowfall totals from  2 to 3-inches far north to 6 to 8+ inches south. Greatest total to this point is the 8.0 inches at DeMotte, Indiana with Ottawa, ILa close second at 7.6 inches and Dyer, IN right behind at 7.5 inches..

Latest reports…

Location        snowfall (inches)

DeMotte, Jasper Co, IN          8.0

Ottawa, La Salle Co                7.6             

Dyer, Lake Co IN                     7.5

Tinley Park, Cook Co              5.0

Midlothian, Cook Co                5.5

Wadsworth, Lake Co IL          2.8

Braidwood, Will Co.                7.5

Lombard, DuPage Co.            4.0 

Hobart, Lake Co. IN                6.5

Beecher, Will Co.                    6.5

Portage, Porter Co., IN           5.8

Darien, DuPage Co.               3.8

Marengo, McHenry Co.          2.2

Crown Point. Lake Co., IN      4.2

DeKalb, DeKalb Co.               3.0

Deerfield, Lake Co.                 2.0

McHenry, McHenry Co.         2.5

Crest Hill, Will Co                   4.1

Carol Stream, Du page Co     3.4

Geneva, Kane Co                   3.9

St. Charles, Kane Co              4.3

Antioch, Lake Co                    3.5

Some late reports on storm total snowfall

Snowfall totals keep coming in – it looks like the storm total snowfall at this point ranges from close to 3 inches to a little over 5 inches. Light snow will continue to fall this afternoon, gradually diminishing and ending from the west later in the day into the evening hours.

Location              snowfall (inches)

Cedar Lake, Lake co, IN    5.0

Romeoville, Will                 4.0

Rockford, Winnebago Co  2.4

Batavia, Kane Co              3.8

St. Charles, Kane Co        4.2

O’Hare Airport                   3.3

Midway Airport                  3.7

Crown Point, Lake Co IN  4.0

Hobart, Lake Co IN           4.5

Bull Valley, McHenry Co   3.1

Wheaton, Du Page Co      4.0

Valparaiso, Porter Co IN   4.5

Capron, Boone Co            2.4

Northbrook, Cook Co        2.8

Evanston, Cook Co          3.6

Oak Lawn, Cook Co         3.4

Niles, Cook Co                 3.5

Peotone, Will Co              4.9

Seneca, La Salle Co        4.5

Winter Storm Warning is lowered for north portion of Chicago area – continued until 6PM CST for central and southern portions

Heavy snow and freezing rain is letting up across the Chicago area – especially to the north and northwest, so the Winter Storm Warning for that area has been lowered. Mostly light to occasionally moderate snowfall will still be observed in central sections, while freezing rain mixed with snow will occur in southern sections into the afternoon.

Thus the Winter Storm Warning remains in effect until 6PM CST for Du Page, Cook, Kendall, Grundy, La Salle, Will, Kankakee, and Livingston Counties in Illinois and Lake and Porter  ,  Counties in Indiana for a storm total snowfall of 4 to 7 inches and freezing rain/sleet mixed with snow south of a line from Streator to Joliet to Gary. The Winter Weather Advisory for a potential mix of freezing rain/sleet and snow along with a 3 to 5 inches total snowfall until 6PM CST remains in effect for Iroquois, and Ford Counties in Illinois and Newton, Benton and Jasper Counties in Indiana.

As the center of low pressure accelerates east – moving out of southeastern Illinois into Indiana this afternoon, the heaviest snowfall/freezing rain will occur closer to the center of low pressure in southeast Illinois and east over central Indiana into Ohio. Snowfall is hanging back to the north and west, so that occasional light snow will still occur over the Chicago area this afternoon, before eventually ending from west to east.

The National Hazardous Map has been updated below to show the latest alignment of Winter Storm warnings (pink-shaded) and Advisories (purple-shaded).

This image displays watches, warnings, statements and advisories issued by the National Weather Service