A Tornado Watch was issued at 2:40 p.m. Saturday March 28, 2020 for 50 counties in Illinois, and also counties in northeast Missouri and southeast Iowa. Initially, no counties in the immediate Chicago region were included.
According to the National Weather Service Chicago Office, the greatest tornado (possibly significant) risk is focused across
the west central and southwest counties managed by the National Weather Service Chicago Office. However, a narrow window of
increased tornado risk is still expected across the Chicagoland area — generally south of I-88.
According to the National Weather Service Office Chicago, the effective warm front currently extends from just south of the Quad Cities, then jogs southeast to south of Peoria before turning east across McLean County toward Rantoul. The ongoing convection has made this boundary a bit diffuse across central Illinois, but a decent amount of clearing over northern Missouri into southern IA and northwest Illinois is allowing for a quick northward push with the warm front.
The National Weather Service added that abundant heating is not needed to destabilize the environment today, and even where thick cirrus is present in the cool side of the warm front, temps are rising 5F+ in just one hour.
At 8:30 a.m. St. Louis was 73°F, Decatur was 68°F, Champaign was 66°F, Joliet was 53°F, Arlington Heights was 48°F, Crystal Lake was 49°F, Round Lake Beach was 47°F, and Waukegan was 44°F.
At 10:15 a.m. St. Louis was 73°F, Decatur was 71°F, Champaign was 67°F, Joliet was 54°F, Arlington Heights was 49°F, Crystal Lake was 50°F, Round Lake Beach was 48°F, and Waukegan was 44°F.
At 3:00 p.m. St. Louis was 71°F, Decatur was 73°F, Champaign was 72°F, Joliet was 63°F, Arlington Heights was 54°F, Crystal Lake was 56°F, Round Lake Beach was 49°F, and Waukegan was 44°F.
Weather Radar (also nexrad.chgowx.com) shows precipitation developing across north and central Illinois at 3:00 p.m.
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Starting to see some clearing where we're expecting to see a significant severe weather outbreak today. Clearing means more room for instability and easier for parcels to break the cap as the surface warms. pic.twitter.com/7aDRszF6QI
— RadarOmega (@RadarOmega_WX) March 28, 2020
A tornado watch has been issued for parts of Illinois, Iowa and Missouri until 9 PM CDT pic.twitter.com/7gbYMnQCt0
— NWS Chicago (@NWSChicago) March 28, 2020
O’HARE FORECAST …
This Afternoon: Showers likely and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms after 4pm. Cloudy, with a high near 61. East wind around 15 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight: Showers and thunderstorms before 1am, then a slight chance of showers after 3am. Low around 46. Breezy, with an east southeast wind 15 to 25 mph becoming southwest after midnight. Winds could gust as high as 35 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday: A 30 percent chance of showers, mainly after 7am. Cloudy, with a high near 51. Windy, with a southwest wind 25 to 30 mph, with gusts as high as 45 mph.
Sunday Night: Mostly cloudy, with a low around 40. Breezy, with a west wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph.
Monday: Partly sunny, with a high near 52. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night: Partly cloudy, with a low around 36.
LAKE TEMPS …
SOUTHERN LAKE MICHIGAN WATER TEMPERATURES
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
903 AM CDT Sat Mar 28 2020
LAKE MICHIGAN WATER TEMPERATURES…
CHICAGO SHORE……….44
CHICAGO CRIB……….43
MICHIGAN CITY……….39
&&
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.
march.chicagoweatherstation.com
Chicago Weather Forecast for your MAC/PC/TABLET includes surrounding suburbs.
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