Long Island Sound East of the Mouth of the Connecticut River, AN

Last updated: 11:37 PM CDT  ·  Refresh
26°C
Feels like 29°
Clear
▲ 33°  /  ▼ 22°
Wind
2 mph NNW
Humidity
84%
Dew Point
23°
Pressure
29,94 inHg
Visibility
9 mi
UV Index
0,0
Cloud Cover
1%
Sunrise
6:53 AM
Sunset
7:01 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Long Island Sound East of the Mouth of the Connecticut River is currently clear at 25°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1354 J/kg) — isolated convective development possible. Sunrise: 6:53AM · Sunset: 7:01PM.

Alerts

No active alerts for this location.
47 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
26°
3%
12 AM
25°
3%
1 AM
24°
3%
2 AM
24°
5%
3 AM
24°
5%
4 AM
24°
6%
5 AM
22°
3%
6 AM
22°
3%
7 AM
23°
3%
8 AM
26°
7%
9 AM
28°
8%
10 AM
29°
8%
11 AM
31°
16%
12 PM
33°
17%
1 PM
35°
17%
2 PM
36°
17%
3 PM
36°
8%
4 PM
35°
8%
5 PM
34°
9%
6 PM
33°
3%
7 PM
32°
3%
8 PM
32°
3%
9 PM
31°
3%
10 PM
31°
3%
7-Day Forecast
Tonight
33° 22°
Clear.
Wed
36° 22°
Mostly Clear.
Thu
35° 23°
Partly Cloudy.
Fri
34° 20°
Partly Cloudy.
Sat
34° 21°
Mostly Clear.
Sun
35° 21°
Clear.
Mon
33° 21°
Drizzle, 43% chance.
TimeTempConditionsPrecipWindHumidity
Now 26° Clear 3% 2 mph NNW 84%
12 AM 25° Clear 3% 4 mph NNW 86%
1 AM 24° Clear 3% 4 mph NNW 88%
2 AM 24° Clear 5% 4 mph NNW 90%
3 AM 24° Mostly Clear 5% 4 mph NNW 91%
4 AM 24° Mostly Clear 6% 3 mph NNW 90%
5 AM 22° Partly Cloudy 3% 3 mph N 89%
6 AM 22° Partly Cloudy 3% 4 mph N 87%
7 AM 23° Mostly Clear 3% 4 mph NNE 79%
8 AM 26° Partly Cloudy 7% 6 mph NNE 72%
9 AM 28° Mostly Clear 8% 6 mph NNE 65%
10 AM 29° Partly Cloudy 8% 7 mph NE 59%
11 AM 31° Partly Cloudy 16% 7 mph NE 53%
12 PM 33° Mostly Clear 17% 8 mph NE 48%
1 PM 35° Clear 17% 9 mph NE 44%
2 PM 36° Clear 17% 9 mph NE 42%
3 PM 36° Clear 8% 9 mph NE 40%
4 PM 35° Mostly Clear 8% 9 mph NE 43%
5 PM 34° Mostly Clear 9% 8 mph NE 46%
6 PM 33° Mostly Clear 3% 8 mph NE 49%
7 PM 32° Mostly Clear 3% 7 mph NE 52%
8 PM 32° Mostly Clear 3% 7 mph NE 54%
9 PM 31° Mostly Clear 3% 6 mph NE 56%
10 PM 31° Clear 3% 6 mph NE 57%
15-Day Forecast
Today
9/22
Clear
3%
22°
33°
Wed
9/23
Mostly Clear
17%
22°
36°
Thu
9/24
Partly Cloudy
3%
23°
35°
Fri
9/25
Partly Cloudy
8%
20°
34°
Sat
9/26
Mostly Clear
3%
21°
34°
Sun
9/27
Clear
9%
21°
35°
Mon
9/28
Drizzle
43%
21°
33°
Tue
9/29
Rain
63%
21°
34°
Wed
9/30
Rain
69%
22°
34°
Thu
10/1
Drizzle
44%
20°
33°
Fri
10/2
Drizzle
60%
19°
33°
Sat
10/3
Drizzle
60%
21°
34°
Sun
10/4
Rain
90%
20°
32°
Mon
10/5
Drizzle
60%
18°
31°
Tue
10/6
Drizzle
60%
18°
31°
47
Good
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

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

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
47 AQI 8.5 µg/m³
O3
Ground-level ozone
46 AQI 51 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 47 Good 46 47
Thu 55 Moderate 44 55
Fri 61 Moderate 61 57
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 mer. sept. 23, 03:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1087 J/kg
MLCAPE599 J/kg
MUCAPE1087 J/kg
SBCIN-194 J/kg
MLCIN-124 J/kg
Lifted Index-2.0
Kinematics
0–6 km Shear8 kt
0–1 km Shear15 kt
Eff. Shear9 kt
0–1 km SRH-72
0–3 km SRH-64
Eff. SRH-64
Storm Motion68° @ 24 kt
0–1 km EHI-0.5
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index31.8
Thermo & Levels
PWAT1.82 in
0–3 km LR5.4 °C/km
700–500 LR4.8 °C/km
Total Totals43.5
LCL980 hPa
LFC801 hPa
EL200 hPa
Freezing Lvl16,030 ft