Tornado Watch 8:00 PM

Fairfield County, Greater Bridgeport Planning Region, Connecticut, United States

Last updated: 6:22 PM CDT  ·  Refresh
22°C
Feels like 24°
Overcast
▲ 24°  /  ▼ 18°
Wind
7 mph S
Humidity
96%
Dew Point
22°
Pressure
29.20 inHg
Visibility
9 mi
UV Index
0.8
Cloud Cover
98%
Sunrise
5:38 AM
Sunset
8:20 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Fairfield County is currently overcast at 22°C. Precipitation is likely — peak probability 90% around 7 PM. Atmospheric instability is elevated (CAPE up to 1573 J/kg) — isolated convective development possible. Sunrise: 5:38AM · Sunset: 8:20PM.

Alerts

Tornado Watch
Expires 8:00 PM
70 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
22°
90%
8 PM
23°
52%
9 PM
22°
66%
10 PM
22°
62%
11 PM
22°
68%
12 AM
21°
64%
1 AM
22°
46%
2 AM
22°
48%
3 AM
22°
59%
4 AM
22°
50%
5 AM
20°
50%
6 AM
20°
42%
7 AM
21°
40%
8 AM
21°
40%
9 AM
22°
44%
10 AM
23°
47%
11 AM
23°
52%
12 PM
24°
42%
1 PM
24°
29%
2 PM
26°
26%
3 PM
26°
27%
4 PM
25°
27%
5 PM
26°
25%
6 PM
26°
16%
7-Day Forecast
Tonight
24° 18°
Overcast with a 90% chance of rain.
Wed
27° 19°
Rain, 50% chance.
Thu
24° 15°
Mostly Clear.
Fri
24° 14°
Fog.
Sat
24° 15°
Mostly Clear.
Sun
26° 17°
Rain, 71% chance.
Mon
26° 18°
Drizzle, 60% chance.
TimeTempConditionsPrecipWindHumidity
Now 22° Overcast 90% 7 mph S 96%
8 PM 23° Haze 52% 7 mph SSW 96%
9 PM 22° Overcast 66% 8 mph SSW 97%
10 PM 22° Rain 62% 8 mph SSW 97%
11 PM 22° Rain 68% 9 mph SSW 96%
12 AM 21° Overcast 64% 9 mph SSW 97%
1 AM 22° Overcast 46% 9 mph SSW 96%
2 AM 22° Overcast 48% 8 mph SSW 96%
3 AM 22° Overcast 59% 8 mph SSW 96%
4 AM 22° Overcast 50% 8 mph SSW 97%
5 AM 20° Overcast 50% 8 mph SW 96%
6 AM 20° Mostly Cloudy 42% 8 mph SW 93%
7 AM 21° Rain 40% 8 mph SW 90%
8 AM 21° Rain 40% 8 mph SW 87%
9 AM 22° Rain 44% 8 mph SW 84%
10 AM 23° Rain 47% 8 mph SW 81%
11 AM 23° Rain 52% 8 mph SW 77%
12 PM 24° Mostly Cloudy 42% 8 mph WSW 72%
1 PM 24° Partly Cloudy 29% 8 mph WSW 66%
2 PM 26° Partly Cloudy 26% 9 mph W 62%
3 PM 26° Partly Cloudy 27% 8 mph W 61%
4 PM 25° Partly Cloudy 27% 8 mph W 60%
5 PM 26° Partly Cloudy 25% 8 mph W 60%
6 PM 26° Partly Cloudy 16% 8 mph W 62%
15-Day Forecast
Today
7/21
Overcast
90%
18°
24°
Wed
7/22
Rain
50%
19°
27°
Thu
7/23
Mostly Clear
3%
15°
24°
Fri
7/24
Fog
16%
14°
24°
Sat
7/25
Mostly Clear
8%
15°
24°
Sun
7/26
Rain
71%
17°
26°
Mon
7/27
Drizzle
60%
18°
26°
Tue
7/28
Drizzle
63%
17°
25°
Wed
7/29
Drizzle
68%
17°
24°
Thu
7/30
Drizzle
68%
17°
24°
Fri
7/31
Drizzle
64%
18°
26°
Sat
8/1
Drizzle
60%
18°
24°
Sun
8/2
Drizzle
60%
18°
25°
Mon
8/3
Drizzle
60%
19°
25°
Tue
8/4
Drizzle
60%
19°
26°
70
Moderate
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
70 AQI 19.4 µg/m³
O3
Ground-level ozone
42 AQI 45 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Wed 70 Moderate 42 70
Thu 42 Good 39 42
Fri 49 Good 35 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 LCLLFCEL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Tue Jul 21, 22:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE503 J/kg
MLCAPE531 J/kg
MUCAPE572 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-2.5
Kinematics
0–6 km Shear34 kt
0–1 km Shear17 kt
Eff. Shear35 kt
0–1 km SRH-63
0–3 km SRH-105
Eff. SRH-105
Storm Motion209° @ 39 kt
0–1 km EHI-0.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index35.4
Thermo & Levels
PWAT1.99 in
0–3 km LR5.2 °C/km
700–500 LR5.4 °C/km
Total Totals46.5
LCL979 hPa
LFC989 hPa
EL327 hPa
Freezing Lvl13,471 ft