TODAY SUNRISE: 7:18 AM SUNSET: 4:24 PM
Chicagoland weather radar shows a thunderstorm line from Peoria to the northwest tip of Illinois at about 5:25 p.m. The fast-moving (54 knots) thunderstorm line is moving northeast and the southern tip, if it stays intact, would likely pass through the northwest suburbs within 60 to 90 minutes (6:30 p.m. to 7:00 p.m.). At least one computer model forecasts weakening of severe weather east of I-39. The radar image has shown slight weakening in a 30-minute period observed. Also the tops that would be headed toward Arlington Heights are only 18,000 feet. The thunderstorm risk ends by 10:00 p.m. but high damaging winds are possible until about 2:00 a.m.
A Tornado Watch is in effect until 8:00 p.m. for several counties in northwest and western Illinois including the Peoria.
Satellite images show two main areas of clouds — one in eastern Illinois and one in west-northwest Illinois.
Peak winds with gusts of about 51 MPH are expected about 10 p.m.
Wind Advisory
URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE CHICAGO IL 259 PM CST WED DEC 23 2015 ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019- 240500- /O.CON.KLOT.WI.Y.0008.151224T0000Z-151224T0900Z/ WINNEBAGO-BOONE-MCHENRY-LAKE IL-OGLE-LEE-DE KALB-KANE-DUPAGE-COOK- LA SALLE-KENDALL-GRUNDY-WILL-KANKAKEE-LIVINGSTON-IROQUOIS-FORD- LAKE IN-PORTER-NEWTON-JASPER-BENTON- INCLUDING THE CITIES OF...ROCKFORD...BELVIDERE...WOODSTOCK... WAUKEGAN...OREGON...DIXON...DEKALB...AURORA...WHEATON...CHICAGO... OTTAWA...OSWEGO...MORRIS...JOLIET...KANKAKEE...PONTIAC... WATSEKA...PAXTON...GARY...VALPARAISO...MOROCCO...RENSSELAER... FOWLER 259 PM CST WED DEC 23 2015 /359 PM EST WED DEC 23 2015/ ...WIND ADVISORY REMAINS IN EFFECT FROM 6 PM CST /7 PM EST/ THIS EVENING TO 3 AM CST /4 AM EST/ THURSDAY... * TIMING...6PM CST /7PM EST/ THROUGH 3 AM CST /4 AM EST/. * WINDS...SUSTAINED WINDS TO 35 MPH WITH GUSTS TO 50 MPH. * IMPACTS...TRAVEL MAY BE DIFFICULT FOR HIGH PROFILE VEHICLES... ESPECIALLY ON NORTH-SOUTH ORIENTED ROADS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 30 TO 39 MPH...OR GUSTS BETWEEN 45 AND 57 MPH...ARE LIKELY. WINDS THIS STRONG CAN CAUSE MINOR PROPERTY DAMAGE UNLESS PRECAUTIONS ARE TAKEN. DRIVING MAY BE DIFFICULT...ESPECIALLY IN HIGH PROFILE VEHICLES. MOTORISTS SHOULD BE ALERT AND USE CAUTION.
NWS POINT FORECAST …
This Afternoon
Showers likely and possibly a thunderstorm. Cloudy, with a high near 59. Breezy, with a south wind around 25 mph, with gusts as high as 35 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers likely and possibly a thunderstorm before 10pm, then a chance of showers between 10pm and midnight. Cloudy, then gradually becoming partly cloudy, with a low around 35. Very windy, with a west southwest wind 30 to 35 mph becoming west southwest 25 to 30 mph after midnight. Winds could gust as high as 50 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Partly sunny, with a high near 42. Breezy, with a west southwest wind 15 to 20 mph decreasing to 5 to 10 mph in the afternoon. Winds could gust as high as 30 mph.
Thursday Night
Mostly cloudy, with a low around 29. Southwest wind around 5 mph becoming north northeast in the evening.
Christmas Day
Partly sunny, with a high near 43. North northwest wind around 5 mph becoming east in the afternoon.
AIRPORT WEATHER OBSERVATIONS …
| Location | Time (cdt) |
Sky/Weather | Temp. (ºF) |
Dewpt. (ºF) |
Humidity (%) |
Wind (mph) |
Pressure (in) |
|
|---|---|---|---|---|---|---|---|---|
| Chicago/O’Hare | 17:51 | Mostly Cloudy | 55 | 51 | 87 | S 18 G 26 | 29.12 | |
| Chicago Midway Airport | 17:53 | Mostly Cloudy | 57 | 50 | 78 | S 17 G 30 | 29.15 | |
| Chicago Executive Airport | 17:52 | A Few Clouds | 56 | 51 | 84 | S 16 G 29 | 29.13 | |
| Chicago / West Chicago, Dupage Airport | 17:52 | Mostly Cloudy and Breezy | 55 | 50 | 83 | S 21 | 29.11 | |
| Aurora Municipal Airport | 17:52 | Overcast | 57 | 52 | 83 | S 20 G 33 | 29.10 | |
| Gary Chicago International | 17:45 | Mostly Cloudy | 57 | 52 | 82 | S 10 G 29 | 29.19 | |
| Kenosha Regional Airport | 17:53 | Mostly Cloudy | 56 | 51 | 84 | S 14 G 26 | 29.10 | |
| Chicago / Waukegan, Waukegan Regional Airport | 17:55 | Partly Cloudy | 56 | 51 | 84 | S 20 G 28 | 29.11 | |
| Lansing Municipal Airport | 17:35 | Fair | 55 | 52 | 91 | S 16 G 22 | 29.20 | |
| Click on location name for the weather during the past two days at that site. | ||||||||
CHICAGO EXECUTIVE AIRPORT …
| D a t e |
Time (cst) |
Wind (mph) |
Vis. (mi.) |
Weather | Sky Cond. | Temperature (ºF) | Relative Humidity |
Wind Chill (°F) |
Heat Index (°F) |
Pressure | Precipitation (in.) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Air | Dwpt | 6 hour | altimeter (in) |
sea level (mb) |
1 hr | 3 hr | 6 hr | ||||||||||
| Max. | Min. | ||||||||||||||||
| 23 | 16:52 | S 16 G 29 | 10.00 | A Few Clouds | FEW019 | 56 | 51 | 84% | NA | NA | 29.13 | 986.4 | |||||
| 23 | 15:52 | S 17 | 10.00 | Partly Cloudy | SCT090 | 57 | 52 | 83% | NA | NA | 29.15 | 987.2 | |||||
| 23 | 14:52 | S 16 | 10.00 | Fair | CLR | 57 | 53 | 87% | NA | NA | 29.16 | 987.4 | 0.06 | ||||
| 23 | 13:52 | S 17 | 10.00 | A Few Clouds | FEW014 FEW110 | 58 | 54 | 87% | NA | NA | 29.20 | 988.9 | |||||
| 23 | 12:52 | S 21 G 29 | 10.00 | Light Rain and Breezy | BKN016 OVC021 | 58 | 55 | 90% | NA | NA | 29.25 | 990.6 | 0.06 | ||||
| 23 | 11:52 | S 17 G 33 | 2.00 | Rain Fog/Mist | BKN011 BKN019 OVC026 | 59 | 57 | 59 | 47 | 93% | NA | NA | 29.25 | 990.7 | 0.20 | 0.36 | |
| 23 | 10:52 | SE 13 G 20 | 1.00 | Thunderstorm Rain Fog/Mist | OVC004 | 55 | 55 | 100% | NA | NA | 29.34 | 993.8 | 0.16 | ||||
| 23 | 09:52 | SE 9 | 1.50 | Light Rain Fog/Mist | OVC003 | 53 | 53 | 100% | NA | NA | 29.42 | 996.4 | |||||
| 23 | 08:52 | SE 7 | 1.00 | Fog/Mist | OVC002 | 50 | 50 | 100% | 47 | NA | 29.47 | 998.1 | |||||
| 23 | 07:52 | SE 12 | 0.75 | Fog/Mist | OVC002 | 50 | 50 | 100% | 45 | NA | 29.51 | 999.6 | |||||
| 23 | 06:52 | SE 10 | 1.00 | Fog/Mist | OVC002 | 48 | 48 | 100% | 44 | NA | 29.55 | 1001.0 | |||||
| 23 | 05:52 | SE 8 | 0.75 | Fog/Mist | VV002 | 47 | 47 | 47 | 42 | 100% | 43 | NA | 29.59 | 1002.4 | |||
| 23 | 04:52 | SE 3 | 0.50 | Fog | VV002 | 46 | 46 | 100% | NA | NA | 29.62 | 1003.4 | |||||
| 23 | 03:52 | SE 7 | 0.75 | Fog/Mist | OVC002 | 45 | 45 | 100% | 41 | NA | 29.64 | 1004.0 | |||||
| 23 | 02:52 | SE 5 | 1.25 | Fog/Mist | OVC003 | 44 | 43 | 96% | 41 | NA | 29.67 | 1005.1 | |||||
| 23 | 01:52 | S 6 | 2.00 | Fog/Mist | OVC003 | 43 | 43 | 100% | 39 | NA | 29.68 | 1005.3 | |||||
| 23 | 00:52 | SE 9 | 2.50 | Fog/Mist | OVC005 | 42 | 41 | 96% | 37 | NA | 29.68 | 1005.3 | |||||
MORE HELPFUL LINKS …
LIVE RADAR | STORM TRACKS | UNISYS US IR SAT | UNISYS Midwest IR SAT | UNISYS More IR SAT
WunderMap® with Temperature/Wind Data || Google: Arlington Heights Temps | NE Illinois Temps
Full Screen Motion Weather Radar (Wunderground.com)
Midwest Cloud Cover with Arlington Heights Weather Forecast | SWPC Aurora Forecast
ChicagoWeatherStation.com I O’Hare Normal Temps/Precip I O’Hare Record Temps, Precip, Snow
SUNLIGHT DATA FOR SECURITY, TRAFFIC SAFETY, AND SPORTS
SunCalc.net data with solar azimuth and trajectory, times for dawn, sunrise, solar noon, sunset, dusk …
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