Conditions of an unstable atmosphere are favorable for thunderstorms overnight. Then a period of thunderstorms are possible through Tuesday until about 7 p.m. when rainfall amount for Arlington Heights through the period Sunday night through Tuesday night may total about 1 inch. Most counties in northeast Illinois north of I-88 are under a Severe Thunderstorm Watch until 1:00 a.m. Monday August 6, 2018.
Weather Radar (also nexrad.chgowx.com) shows storms holding together as they approach Rockford. The storms have weakened considerably since they crossed the Illinois-Iowa border. The storms are moving in an east-northeast direction. An outflow boundary or gust front passed the western border of Kane County about 8:45 p.m. The thunderstorms are expected to pass over Arlington Heights and nearby communities from 9:45 p.m. until 10:30 p.m.
Scattered T-storms will move across N Illinois. Stronger storms will produce gusty winds, heavy rain, & cloud to ground lightning. pic.twitter.com/P1zpnRq4sH
— NWS Chicago (@NWSChicago) August 6, 2018
NEW: #Severe thunderstorm watch issued for southern Wisconsin and northern Illinois until 1 a.m. CDT. This watch area includes #Chicago. pic.twitter.com/DWKFLE6vMY
— The Weather Channel (@weatherchannel) August 6, 2018
Here are 4 things to know about this week's #weather in the U.S.: https://t.co/s0dbtSujpD pic.twitter.com/jqD8ONcafy
— The Weather Channel (@weatherchannel) August 6, 2018
SPC Aug 5, 2018 2000 UTC Day 1 Convective Outlook: SPC 2000Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0252 PM CDT Sun Aug 05 2018 Valid 052000Z – 061200Z …THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PARTS… https://t.co/kWdobvijaT pic.twitter.com/GjwgWUXNbK
— Cardinal Weather (@CardinalWeather) August 5, 2018
O’HARE FORECAST …
Tonight: Showers and thunderstorms likely, mainly before midnight. Some storms could be severe, with large hail and damaging winds. Partly cloudy, with a low around 76. South southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday: Showers and thunderstorms likely, mainly after 4pm. Partly sunny, with a high near 89. Southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night: Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 70. West southwest wind 5 to 10 mph becoming east northeast after midnight. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 80. North wind 5 to 10 mph becoming east northeast in the morning.
Tuesday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 66. North wind 5 to 10 mph.
Wednesday: Mostly sunny, with a high near 83.
Wednesday Night: Mostly clear, with a low around 66.
Thursday: Sunny, with a high near 86.
Thursday Night: Partly cloudy, with a low around 69.
Friday: A chance of showers and thunderstorms. Mostly sunny, with a high near 85.
Friday Night: Mostly clear, with a low around 66.
Saturday: Sunny, with a high near 84.
Saturday Night: Mostly clear, with a low around 66.
Sunday: Sunny, with a high near 84.
LAKE TEMPS …
SOUTHERN LAKE MICHIGAN WATER TEMPERATURES
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
913 AM CDT Sun Aug 5 2018
LAKE MICHIGAN WATER TEMPERATURES…
CHICAGO SHORE……….78.
CHICAGO CRIB……….75.
WILMETTE BUOY……….73.
WAUKEGAN BUOY……….70.
WINTHROP HARBOR BUOY……….67.
MICHIGAN CITY……….69.
MICHIGAN CITY BUOY……….74.
SOUTH MID LAKE BUOY……….74.
NORTH MID LAKE BUOY……….70.
august.chicagoweatherstation.com
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