According to the National Weather Service Chicago, a very impressive low-level jet is present just off the surface. Overnight AMDAR aircraft (Aircraft Meteorological DAta Relay use of existing aircraft in flight) continue to report winds of around 65 kts (75 mph) at around 3,000 feet aloft. With continued gusty winds overnight, temperatures have remained pretty homogeneous and caused a fairly warm baseline of 50°F beginning the warm-up between 2:30 a.m. and 3:30 a.m.
FIRE RISK DISCUSSION
Stronger wind gusts are expected today compared to Wednesday, especially for areas south and east of I-55 where gusts of 45 to 50 mph are forecast by late this morning. While dewpoints will increase compared to Wednesday, temperatures are expected to be quite a bit warmer as well, resulting in afternoon RH values
falling into the 30-40 percent range. Locally lower values of 25-30 percent will be possible south and east of I-55.
— NWS Chicago
Weather Radar in northeast Illinois is clear.
Strong winds today with gusts as high as 45 mph, combined with dry conditions will result in elevated wildfire concerns. Highs today will be in the 60s. Cooler more seasonable weather is in store this weekend with rain chances increasing Saturday night into Sunday. #ILwx #INwx pic.twitter.com/iYnBjT2fZS
— NWS Chicago (@NWSChicago) November 19, 2020
Windy conditions today will lead to a very elevated fire danger, especially east and south of I-55 where wind gusts are expected to be the strongest. Postpone any planned burning and be extremely careful with any open flames today! #ILwx #INwx pic.twitter.com/2UGyv30rZJ
— NWS Chicago (@NWSChicago) November 19, 2020
O’HARE FORECAST …
WIND ADVISORY from 9 AM to 4 PM Thursday, November 19, 2020
Today: Partly sunny, with a high near 65. Windy, with a southwest wind 20 to 30 mph, with gusts as high as 45 mph.
Tonight: Partly cloudy, with a low around 49. Breezy, with a south southwest wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph.
Friday: Partly sunny, with a high near 58. West northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Friday Night: Mostly cloudy, with a low around 38. North northwest wind 5 to 10 mph.
Saturday: Mostly cloudy, with a high near 46. North wind 5 to 10 mph.
Saturday Night: A 40 percent chance of rain. Cloudy, with a low around 37.
Sunday: A 50 percent chance of rain. Mostly cloudy, with a high near 47.
Sunday Night: A chance of rain before midnight. Partly cloudy, with a low around 32.
Monday: Sunny, with a high near 44.
Monday Night: Partly cloudy, with a low around 32.
Tuesday: A chance of rain. Mostly cloudy, with a high near 45.
Tuesday Night: A chance of rain. Mostly cloudy, with a low around 36.
Wednesday: A chance of rain. Partly sunny, with a high near 47.
LAKE TEMPS …
SOUTHERN LAKE MICHIGAN WATER TEMPERATURES
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
934 AM CST Wed Nov 18 2020
LAKE MICHIGAN WATER TEMPERATURES…
SOUTH MID LAKE BUOY……….45.
NORTH MID LAKE BUOY……….47.
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.
Chicago Weather Forecast for your MAC/PC/TABLET includes surrounding suburbs.
^^ MOBILE? USE VOICE MIC ^^
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McHenry-Lake IL-De Kalb-Kane-DuPage-La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-Northern Cook-Central Cook-Southern Cook-Northern Will-Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
Including the cities of Crystal Lake, Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove, Mundelein, Gurnee, DeKalb, Sycamore, Aurora, Elgin, Naperville, Wheaton, Downers Grove, Lombard, Carol Stream, Ottawa, Streator, La Salle, Mendota, Marseilles, Oswego, Yorkville, Plano, Morris, Coal City, Minooka, Kankakee, Bourbonnais, Bradley, Pontiac, Dwight, Fairbury, Watseka, Gilman, Paxton, Gibson City, Evanston, Des Plaines, Schaumburg, Palatine, Northbrook, Chicago, Cicero, Oak Lawn, Oak Park, La Grange, Calumet City, Oak Forest, Lemont, Orland Park, Park Forest, Joliet, Bolingbrook, Plainfield, Mokena, Channahon, Manhattan, Wilmington, Crete, Peotone,Beecher, Gary, Hammond, Merrillville, Portage, Valparaiso,Chesterton, Roselawn, Kentland, Morocco, Rensselaer, DeMotte,Fowler, and Oxford
306 AM CST Thu Nov 19 2020 /406 AM EST Thu Nov 19 2020/
…WIND ADVISORY REMAINS IN EFFECT FROM 9 AM CST /10 AM EST/ THIS MORNING TO 4 PM CST /5 PM EST/ THIS AFTERNOON…
* WHAT…Southwest winds 20 to 30 mph with gusts up to 45 mph expected. A few gusts to 55 mph are possible late this morning and afternoon east of Interstate 57.
* WHERE…Portions of northwest Indiana and central, east central, north central and northeast Illinois.
* WHEN…From 9 AM CST /10 AM EST/ to 4 PM CST /5 PM EST/Thursday.
* IMPACTS…Gusty winds will blow around unsecured objects and could compromise some outdoor tent structures. Tree limbs could be blown down and a few power outages may result.
Difficult travel is expected for high profile vehicles on west to east oriented roads.
* ADDITIONAL DETAILS…The strong winds and dry and mild conditions will be conducive for a more rapid spread of brush fires. Consider postponing any planned burning.
Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects, including holiday decorations.