Memorial Day Parade Weather Forecast: Significant Rain Threat Delayed to 1 PM with Risk of Severe Weather Afternoon

High 71°F About 1-2 PM with a Risk of a Tornado

While there may be a sprinkle during the Memorial Day Parade (step off 9:30 a.m.), the sprinkles are most likely to hold off until 11:30 a.m. or later. A chance of severe weather and/or heavy rainfall is in the forecast, starting about 1:00 p.m. The most likely chance for severe weather to occur would be from 1:00 p.m. to 3:00 p.m. A second round of severe weather is possible from 5:00 p.m. to 9:00 p.m.

The National Weather Service Storm Prediction Center (SPC) has marked almost all of northern Illinois and all of north central Illinois in an area of Enhanced Risk of Severe Thunderstorms.

The SPC has also marked most of northern Illinois in an area of a 10 percent Tornado Risk for Memorial Day between 6 AM Monday and 12 AM Monday/Tuesday. Arlington Heights is at the border of the 5 percent and 10 percent risk area for a tornado occurring within 25 miles of any point in Arlington Heights, especially early Monday afternoon.

The Storm Prediction Center places Arlington Heights in a 30 percent risk area for damaging thunderstorm winds and hail on Monday, as well.

Extreme severe weather development depends on a warm front and the unstable, upward motion of a Shortwave Trough reaching the area about the same time period. Southwest Chicagoland may be at the greatest risk for tornado development Monday. At 6:45 a.m. no Tornado Watch was activated in northern Illinois.

Weather Radar (also nexrad.chgowx.com) shows very little precipitation in northern Illinois, and the GOES East satellite view shows most clouds west of the Mississippi River at 6:25 a.m. There are no significant signs of build up of thunderstorms in northern Illinois at 6:25 a.m.; however clouds were building up over land near the Lake Michigan shoreline, inland as far as about the Fox River.







 O’HARE FORECAST … 

Memorial Day: Showers and thunderstorms likely, mainly between 1pm and 3pm. Mostly cloudy, with a high near 71. East southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

Tonight: Showers and thunderstorms likely, mainly before 10pm. Mostly cloudy, with a low around 61. South southeast wind 10 to 15 mph becoming west southwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Tuesday: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 69. West wind around 10 mph becoming northeast in the afternoon. Winds could gust as high as 20 mph.

Tuesday Night: Showers and thunderstorms likely, mainly after 1am. Cloudy, with a low around 54. Northeast wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 70%.

Wednesday: A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, with a high near 76. South southeast wind 5 to 10 mph becoming west in the afternoon.

Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Chance of precipitation is 40%.

Thursday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 72. Chance of precipitation is 50%.

Thursday Night: A chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 53.

Friday: Mostly sunny, with a high near 72.

Friday Night: Partly cloudy, with a low around 55.

Saturday: A chance of showers and thunderstorms. Partly sunny, with a high near 74.

Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 55.

Sunday: A chance of showers. Partly sunny, with a high near 66.

 LAKE TEMPS … 

SOUTHERN LAKE MICHIGAN WATER TEMPERATURES
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
907 AM CDT Sun May 26 2019

LAKE MICHIGAN WATER TEMPERATURES…

CHICAGO SHORE……….59.

CHICAGO CRIB……….58.

WILMETTE BUOY……….M.

WAUKEGAN BUOY……….51.

WINTHROP HARBOR BUOY……….49.

MICHIGAN CITY……….52.

MICHIGAN CITY BUOY……….55.

SOUTH MID LAKE BUOY……….40.

NORTH MID LAKE BUOY……….37.

&&

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.

may.chicagoweatherstation.com

Arlingtoncardinal.com/radar

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

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