Storms, Rainy Period Overnight to Sunday Morning Totaling 2″, High 70 Saturday, Arlington Heights, Chicago Weather Forecast Northwest

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A surface frontal boundary remains just south of the Chicago forecast area this evening, ranging from near Kansas City to Bloomington IL and Indianapolis. Thunderstorms were tracking east-northeast, just north of the front across northern Illinois.

Weather Radar (also nexrad.chgowx.com) shows thunderstorms with potentially heavy rain moving east-northeast across northern Illinois. Arlington Heights should get its first round of potentially severe weather by 9:00 p.m. Several additional rounds could pass over Arlington Heights and the northwest suburbs overnight.














 O’HARE FORECAST … 

Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 9pm. Some of the storms could produce heavy rain. Patchy fog before 1am. Low around 62. South southeast wind 5 to 10 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

Saturday: Showers and thunderstorms likely, mainly before 4pm. Some of the storms could produce heavy rain. Cloudy, with a high near 70. Southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Saturday Night: Showers and thunderstorms likely, mainly after 1am. Cloudy, with a low around 57. North northeast wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Sunday: Showers and thunderstorms likely. Cloudy, with a high near 67. Northeast wind around 10 mph. Chance of precipitation is 60%.

Sunday Night: Showers likely and possibly a thunderstorm. Cloudy, with a low around 60. Northeast wind 5 to 10 mph becoming south southeast after midnight. Chance of precipitation is 70%.

Columbus Day: A 40 percent chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, with a high near 81.

Monday Night: Mostly cloudy, with a low around 67.

Tuesday: A chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 82.

Tuesday Night: A chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 65.

Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 75.

Wednesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 53.

Thursday: Mostly sunny, with a high near 64.

Thursday Night: A slight chance of showers. Mostly clear, with a low around 45.

Friday: Mostly sunny, with a high near 60.

Flood Watch National Weather Service Chicago IL 250 PM CDT Fri Oct 5 2018

…Heavy Rainfall Likely Across Parts of Northern Illinois Tonight…

ILZ003>006-008-010>014-019-020-060400- /O.CON.KLOT.FF.A.0011.181006T0000Z-181006T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-DeKalb-Kane-DuPage-Cook- La Salle-Kendall- Including the cities of Rockford, Belvidere, Woodstock, Waukegan, Oregon, Dixon, DeKalb, Aurora, Elgin, Wheaton, Chicago, Ottawa, and Oswego 250 PM CDT Fri Oct 5 2018

…FLASH FLOOD WATCH REMAINS IN EFFECT FROM 7 PM CDT THIS EVENING THROUGH SATURDAY AFTERNOON…

The Flash Flood Watch continues for

* Portions of north central Illinois and northeast Illinois, including the following areas, in north central Illinois, Boone, DeKalb, La Salle, Lee, Ogle, and Winnebago. In northeast Illinois, Cook, DuPage, Kane, Kendall, Lake IL, and McHenry.

* From 7 PM CDT this evening through Saturday afternoon

* Heavy rain producing thunderstorms are likely over northern Illinois tonight. Given that numerous thunderstorms may track over the same locations, significant rainfall amounts of over 2 inches, and locally, up to 4 inches, are possible across a portion of northern IL into Saturday morning.

* Expect additional rises on area rivers, particularly the Rock, Pecatonica and Fox River basins. Portions of these rivers are already above flood stage or are close to flood stage and this rainfall will worsen river conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

 LAKE TEMPS … 

SOUTHERN LAKE MICHIGAN WATER TEMPERATURES
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
942 AM CDT Fri Oct 5 2018

LAKE MICHIGAN WATER TEMPERATURES…

CHICAGO SHORE……….67.

CHICAGO CRIB……….67.

WILMETTE BUOY……….63.

WAUKEGAN BUOY……….61.

WINTHROP HARBOR BUOY……….58.

MICHIGAN CITY……….65.

MICHIGAN CITY BUOY……….65.

SOUTH MID LAKE BUOY……….63.

NORTH MID LAKE BUOY……….58.

&&

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.

october.chicagoweatherstation.com

Arlingtoncardinal.com/radar

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