Severe Thunderstorm Watch 11:00 PM Flood Warning — East Baton Rouge County, LA Excessive Heat Warning — Pointe Coupee, LA, West Feliciana, LA, East Feliciana, LA, St. Helena, LA, Washington, LA, Iberville, LA, West Baton Rouge, LA, East Baton Rouge, LA, Assumption, LA, St. James, LA, St. John The Baptist, LA, Upper St. Bernard, LA, Lower St. Bernard, LA, Northern Tangipahoa, LA, Southeast St. Tammany, LA, Western Orleans, LA, Eastern Orleans, LA, Northern St. Tammany, LA, Southwestern St. Tammany, LA, Central Tangipahoa, LA, Lower Tangipahoa, LA, Northern Livingston, LA, Southern Livingston, LA, Western Ascension, LA, Eastern Ascension, LA, Upper Jefferson, LA, Upper Plaquemines, LA, Central Plaquemines, LA, Lower Plaquemines, LA, Central Jefferson, LA, Coastal Jefferson, LA, Upper Lafourche, LA, Lower Lafourche, LA, Upper Terrebonne, LA, Lower Terrebonne, LA, Upper St. Charles, LA, Central St. Charles, LA, Lower St. Charles, LA, Wilkinson, MS, Amite, MS, Pike, MS, Walthall, MS, Pearl River, MS 8:00 PM

Chesapeake Bay from Pooles Island to Sandy Point MD, AN

Last updated: 10:41 PM CDT  ·  Refresh
28°C
Feels like 33°
Partly Cloudy
▲ 33°  /  ▼ 24°
Wind
3 mph NNW
Humidity
88%
Dew Point
26°
Pressure
29.76 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
35%
Sunrise
6:16 AM
Sunset
8:05 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Chesapeake Bay from Pooles Island to Sandy Point MD is currently partly cloudy at 28°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2116 J/kg) — isolated convective development possible. Sunrise: 6:16AM · Sunset: 8:05PM.

58 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
28°
8%
11 PM
28°
19%
12 AM
28°
16%
1 AM
28°
4%
2 AM
27°
4%
3 AM
27°
4%
4 AM
27°
4%
5 AM
25°
4%
6 AM
24°
4%
7 AM
26°
9%
8 AM
27°
13%
9 AM
29°
21%
10 AM
31°
22%
11 AM
32°
26%
12 PM
33°
26%
1 PM
34°
26%
2 PM
34°
36%
3 PM
34°
37%
4 PM
34°
47%
5 PM
34°
38%
6 PM
33°
31%
7 PM
33°
21%
8 PM
32°
26%
9 PM
31°
25%
7-Day Forecast
Tonight
33° 24°
Partly Cloudy.
Wed
36° 24°
Mostly Clear with a 47% chance of rain.
Thu
33° 26°
Partly Cloudy with a 64% chance of rain.
Fri
34° 24°
Partly Cloudy with a 63% chance of rain.
Sat
34° 24°
Drizzle, 50% chance.
Sun
34° 24°
Clear.
Mon
35° 24°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 28° Partly Cloudy 8% 3 mph NNW 88%
11 PM 28° Mostly Clear 19% 4 mph NNW 87%
12 AM 28° Clear 16% 4 mph N 88%
1 AM 28° Clear 4% 4 mph N 88%
2 AM 27° Clear 4% 4 mph N 88%
3 AM 27° Clear 4% 4 mph NNE 87%
4 AM 27° Clear 4% 4 mph N 86%
5 AM 25° Clear 4% 5 mph N 85%
6 AM 24° Clear 4% 5 mph N 85%
7 AM 26° Clear 9% 7 mph N 81%
8 AM 27° Clear 13% 9 mph N 75%
9 AM 29° Clear 21% 10 mph N 68%
10 AM 31° Clear 22% 12 mph N 64%
11 AM 32° Mostly Clear 26% 13 mph N 59%
12 PM 33° Mostly Clear 26% 14 mph NNE 55%
1 PM 34° Mostly Clear 26% 14 mph NNE 53%
2 PM 34° Partly Cloudy 36% 14 mph NNE 54%
3 PM 34° Partly Cloudy 37% 14 mph NNE 55%
4 PM 34° Partly Cloudy 47% 14 mph NE 57%
5 PM 34° Partly Cloudy 38% 13 mph NE 61%
6 PM 33° Partly Cloudy 31% 12 mph NE 64%
7 PM 33° Partly Cloudy 21% 12 mph NE 68%
8 PM 32° Mostly Clear 26% 12 mph NE 71%
9 PM 31° Mostly Clear 25% 12 mph NE 75%
15-Day Forecast
Today
7/21
Partly Cloudy
8%
24°
33°
Wed
7/22
Mostly Clear
47%
24°
36°
Thu
7/23
Partly Cloudy
64%
26°
33°
Fri
7/24
Partly Cloudy
63%
24°
34°
Sat
7/25
Drizzle
50%
24°
34°
Sun
7/26
Clear
8%
24°
34°
Mon
7/27
Clear
8%
24°
35°
Tue
7/28
Clear
17%
24°
35°
Wed
7/29
Drizzle
44%
24°
36°
Thu
7/30
Drizzle
44%
24°
37°
Fri
7/31
Drizzle
60%
24°
36°
Sat
8/1
Drizzle
60%
24°
36°
Sun
8/2
Drizzle
60%
24°
34°
Mon
8/3
Drizzle
60%
24°
34°
Tue
8/4
Drizzle
60%
24°
33°
58
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
58 AQI 13.0 µg/m³
O3
Ground-level ozone
27 AQI 30 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 58 Moderate 27 58
Thu 49 Good 26 49
Fri 39 Good 34 39
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 Wed Jul 22, 02:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE2350 J/kg
MLCAPE1511 J/kg
MUCAPE2350 J/kg
SBCIN-134 J/kg
MLCIN0 J/kg
Lifted Index-2.9
Kinematics
0–6 km Shear25 kt
0–1 km Shear18 kt
Eff. Shear30 kt
0–1 km SRH-18
0–3 km SRH-24
Eff. SRH-24
Storm Motion355° @ 30 kt
0–1 km EHI-0.3
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index38.0
Thermo & Levels
PWAT2.30 in
0–3 km LR5.6 °C/km
700–500 LR4.2 °C/km
Total Totals42.5
LCL979 hPa
LFC839 hPa
EL131 hPa
Freezing Lvl18,583 ft