A TORNADO WATCH in Northern Illinois now includes Cook County or Lake County.
A tornado was reported near Pontiac, Illinois.
Funnel cloud spotted near Lexington, IL, near Pontiac. Photo courtesy of @Kfred97. DETAILS: http://t.co/bnPiPPYze2 pic.twitter.com/VkTYk7eODQ
— ABC 7 Chicago (@ABC7Chicago) August 18, 2015
The leading edge of a large area of thunderstorms that was moving from the southwest to the northeast entered the southwest corner of DuPage County about 7:00 p.m.
None of the tops were about 26,000 feet at 7:20 p.m. There are a large number of thunderstorm cells in the area that is approaching.
A thunderstorm cell headed toward Arlington Heights should reach downtown Arlington Heights at about 8:00 p.m. At 7:35 p.m. this cell’s top was 16,000 feet and did not have any hail as indicated by radar.
TODAY SUNRISE: 6:03 AM SUNSET: 7:48 PM
MOBILE FRIENDLY …
Tornado Watch
WATCH COUNTY NOTIFICATION FOR WATCH 494 NATIONAL WEATHER SERVICE CHICAGO IL 636 PM CDT TUE AUG 18 2015 ILC007-037-043-053-063-075-089-091-093-099-103-105-111-141-197- 201-190300- /O.CON.KLOT.TO.A.0494.000000T0000Z-150819T0300Z/ TORNADO WATCH 494 REMAINS VALID UNTIL 10 PM CDT THIS EVENING FOR THE FOLLOWING AREAS IN ILLINOIS THIS WATCH INCLUDES 16 COUNTIES IN CENTRAL ILLINOIS LIVINGSTON IN EAST CENTRAL ILLINOIS FORD IROQUOIS IN NORTH CENTRAL ILLINOIS BOONE DE KALB LA SALLE LEE OGLE WINNEBAGO IN NORTHEAST ILLINOIS DUPAGE GRUNDY KANE KANKAKEE KENDALL MCHENRY WILL THIS INCLUDES THE CITIES OF...AURORA...BELVIDERE...DEKALB... DIXON...JOLIET...KANKAKEE...MORRIS...OREGON...OSWEGO...OTTAWA... PIPER CITY...PONTIAC...ROCKFORD...WATSEKA... WHEATON AND WOODSTOCK. $$ RODRIGUEZ
NWS POINT FORECAST …
Detailed Forecast
This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 82. South southeast wind around 10 mph.
Tonight
Showers and thunderstorms, mainly before 2am. Low around 70. South wind 10 to 15 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
A 40 percent chance of showers and thunderstorms, mainly before 11am. Mostly cloudy, with a high near 77. South wind around 15 mph, with gusts as high as 25 mph.
Wednesday Night
Mostly cloudy, with a low around 59. West southwest wind around 15 mph, with gusts as high as 20 mph.
AIRPORT WEATHER OBSERVATIONS …
| Location | Time (cdt) |
Sky/Weather | Temp. (ºF) |
Dewpt. (ºF) |
Humidity (%) |
Wind (mph) |
Pressure (in) |
|
|---|---|---|---|---|---|---|---|---|
| Chicago/O’Hare | 16:51 | Mostly Cloudy | 81 | 68 | 65 | S 12 | 29.73 | |
| Chicago Midway Airport | 16:53 | Mostly Cloudy | 84 | 68 | 59 | S 13 | 29.73 | |
| Chicago Executive Airport | 16:52 | Fair | 81 | 65 | 58 | S 10 | 29.74 | |
| Chicago / West Chicago, Dupage Airport | 16:52 | Partly Cloudy | 80 | 69 | 69 | SE 8 | 29.72 | |
| Aurora Municipal Airport | 16:52 | A Few Clouds | 79 | 69 | 72 | SE 14 | 29.72 | |
| Gary Chicago International | 15:45 | Mostly Cloudy | NA | NA | NA | S 9 | 29.79 | |
| Kenosha Regional Airport | 16:53 | Fair | 78 | 67 | 69 | SE 9 | 29.74 | |
| Chicago / Waukegan, Waukegan Regional Airport | 16:55 | Fair | 75 | 67 | 76 | SE 10 | 29.73 | |
| Lansing Municipal Airport | 16:55 | Partly Cloudy | 80 | 70 | 71 | SE 7 | 29.75 | |
| Click on location name for the weather during the past two days at that site. | ||||||||
CHICAGO EXECUTIVE AIRPORT …
| D a t e |
Time (cdt) |
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. | ||||||||||||||||
| 18 | 16:52 | S 10 | 10.00 | Fair | CLR | 81 | 65 | 58% | NA | 83 | 29.74 | 1006.5 | |||||
| 18 | 15:52 | S 10 | 10.00 | Mostly Cloudy | SCT039 BKN050 | 82 | 66 | 58% | NA | 84 | 29.77 | 1007.7 | |||||
| 18 | 14:52 | S 7 | 10.00 | Partly Cloudy | SCT038 SCT045 | 81 | 64 | 57% | NA | 83 | 29.80 | 1008.7 | |||||
| 18 | 13:52 | Vrbl 7 | 10.00 | A Few Clouds | FEW034 | 81 | 65 | 58% | NA | 83 | 29.83 | 1009.7 | |||||
| 18 | 12:52 | S 7 | 10.00 | Partly Cloudy | SCT032 | 78 | 64 | 79 | 69 | 62% | NA | 80 | 29.84 | 1010.1 | |||
| 18 | 11:52 | S 7 | 10.00 | A Few Clouds | FEW027 | 78 | 65 | 64% | NA | 80 | 29.86 | 1010.8 | |||||
| 18 | 10:52 | SW 7 | 10.00 | Mostly Cloudy | BKN026 | 77 | 64 | 64% | NA | 79 | 29.87 | 1011.1 | |||||
| 18 | 09:52 | S 7 | 10.00 | A Few Clouds | FEW019 | 75 | 64 | 69% | NA | NA | 29.88 | 1011.4 | |||||
| 18 | 08:52 | S 6 | 10.00 | Fair | CLR | 72 | 66 | 82% | NA | NA | 29.89 | 1011.7 | |||||
| 18 | 07:52 | Calm | 10.00 | Fair | CLR | 70 | 66 | 87% | NA | NA | 29.92 | 1012.7 | |||||
| 17 | 15:52 | NE 8 | 10.00 | Thunderstorm in Vicinity | SCT050 BKN070 | 84 | 68 | 59% | NA | 87 | 29.96 | 1014.0 | |||||
| 17 | 14:52 | W 7 | 10.00 | Thunderstorm in Vicinity | CLR | 88 | 64 | 45% | NA | 89 | 29.97 | 1014.2 | |||||
| 17 | 13:52 | S 7 | 10.00 | Fair | CLR | 86 | 66 | 51% | NA | 88 | 29.99 | 1014.9 | |||||
| 17 | 12:52 | Vrbl 7 | 10.00 | A Few Clouds | FEW047 FEW065 | 88 | 65 | 89 | 72 | 46% | NA | 90 | 30.01 | 1015.7 | |||
| 17 | 11:52 | S 5 | 10.00 | A Few Clouds | FEW047 FEW095 | 86 | 66 | 51% | NA | 88 | 30.03 | 1016.4 | |||||
| 17 | 10:52 | W 7 | 10.00 | Fair | CLR | 85 | 66 | 53% | NA | 87 | 30.05 | 1016.9 | |||||
| 17 | 09:52 | SW 7 | 10.00 | Fair | CLR | 84 | 67 | 57% | NA | 87 | 30.05 | 1017.1 | |||||
| 17 | 08:52 | SW 9 | 10.00 | Fair | CLR | 80 | 67 | 64% | NA | 82 | 30.06 | 1017.3 | |||||
| 17 | 07:52 | S 7 | 10.00 | Fair | CLR | 76 | 67 | 74% | NA | 77 | 30.07 | 1017.7 | |||||
| 17 | 06:52 | S 5 | 8.00 | Fair | CLR | 72 | 67 | 76 | 70 | 84% | NA | NA | 30.06 | 1017.5 | |||
| 17 | 05:52 | S 5 | 10.00 | Fair | CLR | 70 | 66 | 87% | NA | NA | 30.06 | 1017.4 | |||||
| 17 | 04:52 | Calm | 10.00 | Fair | CLR | 71 | 66 | 84% | NA | NA | 30.05 | 1017.0 | |||||
| 17 | 03:52 | S 3 | 10.00 | Fair | CLR | 73 | 67 | 81% | NA | NA | 30.05 | 1016.9 | |||||
| 17 | 02:52 | S 5 | 10.00 | Fair | CLR | 74 | 67 | 79% | NA | NA | 30.04 | 1016.8 | |||||
| 17 | 01:52 | SW 5 | 10.00 | Fair | CLR | 75 | 67 | 76% | NA | NA | 30.05 | 1017.0 | |||||
| 17 | 00:52 | SW 5 | 10.00 | Fair | CLR | 76 | 67 | 86 | 76 | 74% | NA | 77 | 30.06 | 1017.2 | |||
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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