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

Flaxman Island to Demarcation Point from 15 to 75 NM, PK

Last updated: 8:43 PM CDT  ·  Refresh
28°C
Feels like 34°
Mostly Clear
▲ 33°  /  ▼ 25°
Wind
6 mph NW
Humidity
82%
Dew Point
26°
Pressure
29.74 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
26%
Sunrise
6:16 AM
Sunset
8:05 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Flaxman Island to Demarcation Point from 15 to 75 NM is currently mostly clear at 28°C. Precipitation is likely — peak probability 66% around 9 PM. Atmospheric instability is elevated (CAPE up to 2083 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°
60%
9 PM
28°
65%
10 PM
28°
58%
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°
5%
6 AM
25°
5%
7 AM
26°
10%
8 AM
28°
13%
9 AM
29°
22%
10 AM
31°
23%
11 AM
32°
23%
12 PM
33°
23%
1 PM
34°
24%
2 PM
34°
28%
3 PM
35°
28%
4 PM
34°
39%
5 PM
34°
35%
6 PM
33°
32%
7 PM
32°
28%
7-Day Forecast
Tonight
33° 25°
Rain, 60% chance.
Wed
36° 25°
Mostly Clear with a 31% chance of rain.
Thu
32° 26°
Partly Cloudy with a 69% chance of rain.
Fri
34° 25°
Partly Cloudy with a 57% chance of rain.
Sat
34° 24°
Drizzle, 50% chance.
Sun
34° 24°
Clear.
Mon
35° 24°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 28° Mostly Clear 60% 6 mph NW 82%
9 PM 28° Drizzle 65% 5 mph NW 89%
10 PM 28° Partly Cloudy 58% 4 mph NNW 90%
11 PM 28° Partly Cloudy 19% 4 mph NW 89%
12 AM 28° Mostly Clear 16% 4 mph NNW 89%
1 AM 28° Clear 4% 3 mph NNW 89%
2 AM 27° Mostly Clear 4% 4 mph N 89%
3 AM 27° Mostly Clear 4% 4 mph N 88%
4 AM 27° Mostly Clear 4% 4 mph N 88%
5 AM 25° Mostly Clear 5% 6 mph NNW 87%
6 AM 25° Partly Cloudy 5% 7 mph NNW 86%
7 AM 26° Mostly Clear 10% 8 mph N 81%
8 AM 28° Mostly Clear 13% 9 mph N 75%
9 AM 29° Mostly Clear 22% 10 mph N 69%
10 AM 31° Mostly Clear 23% 10 mph NNE 64%
11 AM 32° Clear 23% 11 mph NNE 60%
12 PM 33° Clear 23% 12 mph NNE 56%
1 PM 34° Mostly Clear 24% 13 mph NNE 54%
2 PM 34° Mostly Clear 28% 13 mph NNE 53%
3 PM 35° Partly Cloudy 28% 14 mph NNE 53%
4 PM 34° Partly Cloudy 39% 13 mph NNE 55%
5 PM 34° Partly Cloudy 35% 12 mph NE 60%
6 PM 33° Partly Cloudy 32% 12 mph NE 64%
7 PM 32° Partly Cloudy 28% 12 mph NE 68%
15-Day Forecast
Today
7/21
Rain
60%
25°
33°
Wed
7/22
Mostly Clear
31%
25°
36°
Thu
7/23
Partly Cloudy
69%
26°
32°
Fri
7/24
Partly Cloudy
57%
25°
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 Tue Jul 21, 23:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE2399 J/kg
MLCAPE3191 J/kg
MUCAPE3666 J/kg
SBCIN-134 J/kg
MLCIN0 J/kg
Lifted Index-3.5
Kinematics
0–6 km Shear24 kt
0–1 km Shear16 kt
Eff. Shear35 kt
0–1 km SRH5
0–3 km SRH-18
Eff. SRH-18
Storm Motion350° @ 30 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.1
STP (eff)0.0
Supercell0.0
K-Index36.4
Thermo & Levels
PWAT2.41 in
0–3 km LR5.5 °C/km
700–500 LR4.8 °C/km
Total Totals44.4
LCL966 hPa
LFC837 hPa
EL134 hPa
Freezing Lvl18,156 ft