Flood Advisory — Cook County, IL, Lake County, IN 9:00 AM

Cook County, Illinois, United States

Last updated: 8:12 PM CDT  ·  Refresh
3°C
Feels like -1°
Mostly Clear
▲ 6°  /  ▼ 1°
Wind
9 mph NNW
Humidity
68%
Dew Point
-2°
Pressure
29.43 inHg
Visibility
9 mi
UV Index
0.0
Cloud Cover
16%
Sunrise
6:36 AM
Sunset
4:32 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Cook County is currently mostly clear at 3°C. Dry conditions are expected through the next 24 hours. Sunrise: 6:36AM · Sunset: 4:32PM.

Alerts

Flood Advisory
Cook County, IL, Lake County, IN
Expires 9:00 AM
17 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
3°
5%
9 PM
3°
9%
10 PM
3°
12%
11 PM
3°
18%
12 AM
3°
22%
1 AM
3°
22%
2 AM
3°
20%
3 AM
3°
13%
4 AM
1°
5%
5 AM
1°
1%
6 AM
1°
1%
7 AM
2°
1%
8 AM
2°
1%
9 AM
3°
1%
10 AM
4°
1%
11 AM
6°
1%
12 PM
8°
1%
1 PM
8°
1%
2 PM
8°
1%
3 PM
8°
1%
4 PM
7°
1%
5 PM
7°
1%
6 PM
6°
0%
7 PM
6°
0%
7-Day Forecast
Tonight
6° 1°
Partly Cloudy.
Sat
8° 1°
Mostly Clear with a 20% chance of rain.
Sun
8° 2°
Partly Cloudy.
Mon
11° 1°
Clear.
Tue
12° 2°
Mostly Clear.
Wed
14° 3°
Partly Cloudy.
Thu
14° 8°
Mostly Cloudy.
TimeTempConditionsPrecipWindHumidity
Now 3° Mostly Clear 5% 9 mph NNW 68%
9 PM 3° Mostly Clear 9% 8 mph NNW 70%
10 PM 3° Partly Cloudy 12% 8 mph NNW 73%
11 PM 3° Partly Cloudy 18% 8 mph NNW 80%
12 AM 3° Rain 22% 8 mph NNW 81%
1 AM 3° Partly Cloudy 22% 7 mph NNW 81%
2 AM 3° Partly Cloudy 20% 8 mph NW 82%
3 AM 3° Partly Cloudy 13% 7 mph NW 82%
4 AM 1° Partly Cloudy 5% 7 mph NW 82%
5 AM 1° Mostly Clear 1% 7 mph NW 83%
6 AM 1° Mostly Clear 1% 7 mph NW 83%
7 AM 2° Mostly Clear 1% 7 mph NW 83%
8 AM 2° Clear 1% 8 mph NW 79%
9 AM 3° Mostly Clear 1% 8 mph NW 75%
10 AM 4° Mostly Clear 1% 8 mph NW 70%
11 AM 6° Mostly Clear 1% 7 mph NW 65%
12 PM 8° Mostly Clear 1% 7 mph NW 61%
1 PM 8° Mostly Clear 1% 7 mph NNW 59%
2 PM 8° Clear 1% 6 mph NNW 58%
3 PM 8° Clear 1% 6 mph NNW 60%
4 PM 7° Mostly Clear 1% 5 mph NNW 64%
5 PM 7° Mostly Clear 1% 5 mph NNW 68%
6 PM 6° Mostly Clear 0% 5 mph NW 70%
7 PM 6° Mostly Clear 0% 5 mph NW 72%
15-Day Forecast
Today
11/13
Partly Cloudy
18%
1°
6°
Sat
11/14
Mostly Clear
20%
1°
8°
Sun
11/15
Partly Cloudy
0%
2°
8°
Mon
11/16
Clear
0%
1°
11°
Tue
11/17
Mostly Clear
0%
2°
12°
Wed
11/18
Partly Cloudy
0%
3°
14°
Thu
11/19
Mostly Cloudy
10%
8°
14°
Fri
11/20
Partly Cloudy
11%
10°
16°
Sat
11/21
Mostly Cloudy
32%
8°
18°
Sun
11/22
Mostly Cloudy
34%
2°
13°
Mon
11/23
Mostly Cloudy
21%
1°
8°
Tue
11/24
Drizzle
77%
4°
10°
Wed
11/25
Drizzle
75%
4°
9°
Thu
11/26
Drizzle
70%
3°
8°
Fri
11/27
Drizzle
74%
3°
8°
17
Good
U.S. Air Quality Index · Dominant: O3
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
6 AQI 1.0 µg/m³
O3
Ground-level ozone
Dominant
17 AQI 18 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 17 Good 17 6
Sun 20 Good 14 20
Mon 49 Good 14 49
About the Air Quality Index
0–50 Good
51–100 Moderate
101–150 Unhealthy for Sensitive Groups
151–200 Unhealthy
201–300 Very Unhealthy
301–500 Hazardous

The U.S. AQI runs 0–500. The overall value equals the highest individual pollutant sub-index, and the dominant pollutant is the one driving it. PM2.5 (fine particles) is reported in µg/m³ and ozone (O3) in ppb. Forecast source: NWS NAQFC.

1000850700500400300250200150100 -40-30-20-10010203040 0.41247101624 LCL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Fri Nov 13, 23:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE0 J/kg
MUCAPE0 J/kg
SBCIN—
MLCIN—
Lifted Index7.5
Kinematics
0–6 km Shear23 kt
0–1 km Shear11 kt
Eff. Shear0 kt
0–1 km SRH41
0–3 km SRH54
Eff. SRH0
Storm Motion41° @ 13 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index13.0
Thermo & Levels
PWAT0.35 in
0–3 km LR6.1 °C/km
700–500 LR7.5 °C/km
Total Totals50.3
LCL919 hPa
LFC—
EL—
Freezing Lvl1,732 ft