🌖 🌗 🌑 🌓 Waning Gibbous Moon, sky cover overnight Thu. to Fri., 60% to 26 to 51 to 26%, winds W to SW, 13 to 5 to 7 MPH, Low 30 to 33, 6a to 7a
NWS CHGO | NWS HRLY | /NWSchicago | 🌡
ARLINGTON HEIGHTS WEATHER
▴ forecast7 (Arl. Hts.) | RADAR | WIDE RADAR
IMPORTANT NOTE ON NWS DATA
Updates at Arlingtoncardinal.com/NWSChicago
URGENT – WEATHER MESSAGE
National Weather Service Chicago IL
226 PM CDT Thu Oct 13 2022
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
Including the cities of Rockford, Belvidere, Crystal Lake, Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove, Mundelein, Gurnee, Rochelle, Oregon, Byron, Dixon, 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, 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
226 PM CDT Thu Oct 13 2022 /326 PM EDT Thu Oct 13 2022/
…FREEZE WARNING IN EFFECT FROM 1 AM TO 8 AM CDT FRIDAY…
* WHAT…Sub-freezing temperatures in the upper 20s and lower 30s expected.
* WHERE…Portions of central, east central, north central and northeast Illinois and northwest Indiana.
* WHEN…From 1 AM to 8 AM CDT Friday.
* IMPACTS…Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-ground pipes to protect them from freezing.
O’HARE FORECAST …
Forecast Beginning Thursday Night, Oct. 13, 2022
Tonight: A 30 percent chance of showers, mainly before 7pm. Partly cloudy, with a low around 30. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Friday: Partly sunny, with a high near 55. Breezy, with a southwest wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 35 mph.
Friday Night: A 30 percent chance of showers before 1am. Cloudy during the early evening, then gradual clearing, with a low around 34. West wind 5 to 15 mph, with gusts as high as 20 mph.
Saturday: Mostly sunny, with a high near 53. West wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night: Partly cloudy, with a low around 38.
Sunday: Partly sunny, with a high near 54.
Sunday Night: Mostly cloudy, with a low around 35.
Monday: Mostly sunny, with a high near 46.
Monday Night: Mostly clear, with a low around 30.
Tuesday: Mostly sunny, with a high near 46.
Tuesday Night: Mostly clear, with a low around 31.
Wednesday: Mostly sunny, with a high near 50.
Wednesday Night: Partly cloudy, with a low around 36.
Thursday: Mostly sunny, with a high near 57.
O’Hare forecast archive and hourly weather observations archive are available HERE on the CARDINAL NEWS Magazine.
NIGHT SKY THIS MONTH …
Check the night sky objects for this month and past months in the playlist from the Space Telescope Science Institute YouTube channel Backyard stargazers get a monthly guide to the northern hemisphere’s skywatching events with “Tonight’s Sky” (Musical track The Far River written by Jonn Serrie, from the album And the Stars Go With You courtesy of New World Music Ltd. Musical track The Far River written by Jonn Serrie, from the album And the Stars Go With You courtesy of New World Music Ltd).
Telephoto lens, ISO 100, f/11, Shutter Speed 1/100 to 1/125 for the Moon.
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Telephoto lens, ISO 1600, f/11, Shutter Speed 2.5″ for the skyline. The skyline exposure was toned down, and brightness and contrast was adjusted in Photoshop.
Area Forecast Discussion
National Weather Service Chicago/Romeoville, IL
325 PM CDT Thu Oct 13 2022
.SHORT TERM… Issued at 231 PM CDT Thu Oct 13 2022
Through Friday night…
There are several forecast concerns which include…
Freezing temperatures tonight. Strong winds through early this evening and again Friday. Elevated fire danger this afternoon and again Friday afternoon.
Scattered showers continue across far northern Illinois as an upper wave moves across the area. There have been a few mping reports of graupel with the strongest showers and this activity will continue to move east through late afternoon and should quickly end with sunset. Continued pops through the I-80 corridor but the bulk of the activity may remain further north.
Westerly winds increased rapidly over the past few hours with some gusts into the 40 mph range. Wind gusts into the 35-40 mph will be possible through sunset and then winds will rapidly diminish this evening. Dewpoints have also dropped into the mid/upper 20s at many locations allowing relative humidity to drop into the mid 20 percent range south of the showers. These conditions will maintain an elevated fire danger through early evening and generally south of I-80.
The lower dewpoints are expected to remain across the area tonight allowing temperatures to drop into the lower 30s outside of Chicago with upper 20s possible. There is some uncertainty for temps tonight due to possible mid level cloud cover and winds possible remaining in the 5-10 mph range. These may be limiting factors for frost formation, but a cool airmass with the lower dewpoints seems to favor temps near or below freezing and have issued a freezing warning for all areas, except central Cook County and Chicago.
Winds will increase again mid/late Friday morning with gusts into the 30-35 mph range expected and temperatures may end up a few degrees warmer, possibly reaching 60 across the southern cwa. Dewpoints likely will stay in the 20s through early afternoon and this should allow even lower relative humidity levels, possibly into the 15-20 percent range southeast of I-57 creating an elevated fire danger again for Friday afternoon.
A cold front will move across the area Friday evening, bringing an increase in cloud cover later Friday afternoon, slowly increasing dewpoints and a chance of showers across northwest IL in the late afternoon. The chance of showers will be short in duration as the front moves across the area Friday evening and should be east of the area by midnight. Low temps by Saturday morning are likely to be back in the lower 30s but no frost/freeze mention for now.