Winter Storm Isaiah: Saturday Sleet and Ice, Strong Winds, Then 3.7 Inches of Snow in Period from Friday 4PM to Sunday 2AM

The peak wind gusts period with winds from the northwest arrived a little earlier than forecast. A peak wind gust of 52 MPH was recorded in the 6AM hour, and wind gusts stepped up into the 40+ MPH range in the 4AM hour period. Police and fire personnel have discovered or been assigned to downed tree limbs, arcing power lines, and transformer fires. An Arlington Heights police discovered a downed tree limb across Euclid Avenue just west of Rand Road about 6:15 a.m.

According to ComEd — reporting outages in our Chicagoland ComEd area at 9:10 a.m. — there are 273 outages affecting 7,067 customers out of 4,012,472 customers served. At 9:10 a.m. Arlington Heights had one area outage caused by downed trees or limbs that was affecting fewer than five customers near Harvard Avenue and Sigwalt Street. The incident was cleared by 9:22 a.m.

The snow higher totals forecast has shifted east, bringing the forecast total for Arlington Heights and neighboring communities up to 3.7 inches instead of yesterday’s 3.4 inches. The onset of sleet, freezing rain, and snow is forecast about the same, but some forecasts for area of Chicagoland have shifted to slightly later arrivals for the winter storm known as Winter Storm Isaiah.

HEAVY RAIN: Finished*
LIGHT RAIN: Sat. 8AM – 1PM
FREEZING RAIN: Sat. 7AM – 4PM
SLEET: Sat. 9AM – 3PM
SNOW: Sat. 4PM – 11PM
LIGHT SNOW: Sat. 11PM – Sun. 2AM
PEAK WIND GUSTS: NW 43-55 MPH Sat. 4AM – 3PM

* Total rainfall at O’Hare on Jan. 10 was 0.84 inch, with overnight for early Jan. 11 not reported.

Google search …

winter storm Isaiah

winter storm Isaiah Chicago

Weather Radar (also nexrad.chgowx.com) shows major precipitation as rain moving off to the east from southwest to northeast at 8:15 a.m. There is very light snow slurries in the area and very minor dusting of snow that appeared on rooftops and grassy area or flower beds.




Flood Watch until January 11, 06:00 PM CST

Lakeshore Flood Warning until January 12, 06:00 AM CST

Winter Weather Advisory in effect from January 11, 06:00 AM CST until January 12, 03:00 AM CST

 O’HARE FORECAST … 

Today: Rain and sleet, possibly mixed with snow and freezing rain before 4pm, then snow, possibly mixed with freezing rain between 4pm and 5pm, then snow after 5pm. Temperature falling to around 30 by 5pm. Windy, with a north northeast wind 25 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. Total daytime ice accumulation of less than a 0.1 of an inch possible. Total daytime snow and sleet accumulation of less than a half inch possible.

Tonight: Snow, mainly before 1am. The snow could be heavy at times. Patchy blowing snow before 10pm. Low around 20. Blustery, with a northwest wind 20 to 25 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

Sunday: Partly sunny, with a high near 30. Northwest wind 5 to 10 mph becoming light and variable.

Sunday Night: A slight chance of snow between 9pm and midnight. Mostly cloudy, with a low around 28. East southeast wind 5 to 10 mph becoming southwest after midnight. Chance of precipitation is 20%.

Monday: Partly sunny, with a high near 37. Southwest wind around 5 mph becoming calm in the afternoon.

Monday Night: A chance of rain and snow after midnight. Mostly cloudy, with a low around 31. Chance of precipitation is 30%.

Tuesday: A 20 percent chance of rain before noon. Mostly cloudy, with a high near 44.

Tuesday Night: Mostly cloudy, with a low around 28.

Wednesday: A chance of snow before 10am, then a chance of rain and snow between 10am and 11am, then a chance of rain after 11am. Mostly cloudy, with a high near 45.

Wednesday Night: A chance of rain before 10pm, then a chance of rain and snow between 10pm and midnight, then a chance of snow after midnight. Mostly cloudy, with a low around 18.

Thursday: A slight chance of snow. Mostly sunny, with a high near 25.

Thursday Night: Mostly cloudy, with a low around 15.

Friday: A chance of snow. Mostly cloudy, with a high near 33.

 LAKE TEMPS … 

SOUTHERN LAKE MICHIGAN WATER TEMPERATURES
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
950 AM CST Fri Jan 10 2020

LAKE MICHIGAN WATER TEMPERATURES…

CHICAGO SHORE……….37

CHICAGO CRIB……….33

MICHIGAN CITY……….36

&&

M IS FOR MISSING DATA THAT IS NORMALLY AVAILABLE.

THE MICHIGAN CITY WATER TEMPERATURE SENSOR IS LOCATED AT A WATER
INTAKE ONE MILE OFFSHORE AND 60 FEET BELOW WATER SURFACE. IT IS READ EVERY DAY OF THE YEAR.

january.chicagoweatherstation.com

Arlingtoncardinal.com/radar

Chicago Weather Forecast for your MAC/PC/TABLET includes surrounding suburbs.

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january.chicagoweatherstation.com

Arlingtoncardinal.com/radar

Chicago Weather Forecast for your MAC/PC/TABLET includes surrounding suburbs.

Watches and warnings that apply to the locations of Arlington Heights and surrounding communities …

Winter Weather Advisory

URGENT – WINTER WEATHER MESSAGE
National Weather Service Chicago IL
420 AM CST Sat Jan 11 2020

…Periods of Wintry Precipitation Today and Accumulating Snow
Late this Afternoon and this Evening…

Cook-
Including the cities of Chicago, Humboldt Park, Hyde Park,
Lakeview, Lincoln Park, Logan Square, and Navy Pier
420 AM CST Sat Jan 11 2020

…WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 AM CST
SUNDAY…

* WHAT…Periodic rain is likely to change over to a wintry mix,
mainly light but potentially including ice, across the northwest
part of the county this morning. This mixed precipitation will
spread gradually southward across the county this afternoon.
Total ice accumulations of less than one tenth of an inch are
possible, with some light sleet accumulation also possible. A
transition to snow, possibly briefly heavy, is expected late
this afternoon or early this evening. Total snow accumulations
of 2 to 5 inches are forecast, highest in the northern portion
of the county. Northeast winds will gust as high as 50 mph near
the lake and 40 to 45 mph inland. These winds combined with the
winter precipitation may cause further impacts, especially
reduced visibility in snow late this afternoon and evening.

* WHERE…Cook County.

* WHEN…Through 3 AM CST Sunday.

* IMPACTS…Plan on slippery road conditions and low visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

Slow down and use caution while traveling.

The latest road conditions for Illinois can be obtained on the
internet at www.gettingaroundillinois.com.