Severe Thunderstorm Watch 8:00 PM Severe Thunderstorm Watch 8:00 PM Severe Thunderstorm Watch 9:00 PM Extreme 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, Northern Hancock, MS, Northern Harrison, MS, Northern Jackson, MS, Southern Hancock, MS, Southern Harrison, MS, Southern Jackson, MS 8:00 PM Heat Advisory — 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, Northern Hancock, MS, Northern Harrison, MS, Northern Jackson, MS, Southern Hancock, MS, Southern Harrison, MS, Southern Jackson, MS 8:00 PM

LAC049

Last updated: 7:14 PM CDT  ·  Refresh
29°C
Feels like 34°
Rain
▲ 37°  /  ▼ 24°
Wind
8 mph NNE
Humidity
81%
Dew Point
23°
Pressure
29.94 inHg
Visibility
10 mi
UV Index
1.1
Cloud Cover
78%
Sunrise
6:35 AM
Sunset
7:40 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: LAC049 is currently rain at 29°C. Precipitation is likely — peak probability 80% around 8 PM. Atmospheric instability is elevated (CAPE up to 2847 J/kg) — isolated convective development possible. Sunrise: 6:35AM · Sunset: 7:40PM.

Alerts

Severe Thunderstorm Watch
Expires 8:00 PM
Severe Thunderstorm Watch
Expires 8:00 PM
Severe Thunderstorm Watch
Expires 9:00 PM
Extreme 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, Northern Hancock, MS, Northern Harrison, MS, Northern Jackson, MS, Southern Hancock, MS, Southern Harrison, MS, Southern Jackson, MS
Expires 8:00 PM
Heat Advisory
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, Northern Hancock, MS, Northern Harrison, MS, Northern Jackson, MS, Southern Hancock, MS, Southern Harrison, MS, Southern Jackson, MS
Expires 8:00 PM
51 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
29°
68%
8 PM
28°
80%
9 PM
27°
48%
10 PM
27°
33%
11 PM
27°
38%
12 AM
27°
34%
1 AM
26°
19%
2 AM
26°
8%
3 AM
26°
8%
4 AM
26°
7%
5 AM
24°
4%
6 AM
24°
4%
7 AM
24°
3%
8 AM
26°
3%
9 AM
27°
3%
10 AM
29°
3%
11 AM
30°
3%
12 PM
32°
3%
1 PM
36°
3%
2 PM
37°
5%
3 PM
37°
5%
4 PM
38°
5%
5 PM
38°
6%
6 PM
37°
10%
7-Day Forecast
Tonight
37° 24°
Rain, 68% chance.
Sat
41° 24°
Partly Cloudy with a 33% chance of rain.
Sun
40° 25°
Partly Cloudy with a 44% chance of rain.
Mon
36° 25°
Partly Cloudy with a 49% chance of rain.
Tue
38° 25°
Partly Cloudy with a 40% chance of rain.
Wed
36° 24°
Heavy Rain, 80% chance.
Thu
35° 24°
Rain, 83% chance.
TimeTempConditionsPrecipWindHumidity
Now 29° Rain 68% 8 mph NNE 81%
8 PM 28° Rain 80% 7 mph SSW 86%
9 PM 27° Overcast 48% 5 mph SSW 88%
10 PM 27° Mostly Cloudy 33% 6 mph SW 89%
11 PM 27° Mostly Cloudy 38% 5 mph WSW 88%
12 AM 27° Mostly Cloudy 34% 4 mph WSW 88%
1 AM 26° Mostly Cloudy 19% 4 mph W 87%
2 AM 26° Mostly Cloudy 8% 4 mph W 88%
3 AM 26° Mostly Cloudy 8% 4 mph W 88%
4 AM 26° Mostly Cloudy 7% 4 mph W 88%
5 AM 24° Mostly Cloudy 4% 3 mph W 89%
6 AM 24° Mostly Cloudy 4% 3 mph WSW 90%
7 AM 24° Partly Cloudy 3% 4 mph WSW 89%
8 AM 26° Partly Cloudy 3% 4 mph W 82%
9 AM 27° Mostly Cloudy 3% 5 mph WNW 74%
10 AM 29° Mostly Cloudy 3% 5 mph WNW 67%
11 AM 30° Mostly Cloudy 3% 5 mph WNW 60%
12 PM 32° Mostly Cloudy 3% 4 mph NW 53%
1 PM 36° Mostly Cloudy 3% 4 mph NNW 48%
2 PM 37° Mostly Cloudy 5% 4 mph NNW 46%
3 PM 37° Partly Cloudy 5% 4 mph NNW 43%
4 PM 38° Partly Cloudy 5% 4 mph NNW 41%
5 PM 38° Partly Cloudy 6% 2 mph NNE 44%
6 PM 37° Partly Cloudy 10% 2 mph ESE 46%
15-Day Forecast
Today
8/21
Rain
68%
24°
37°
Sat
8/22
Partly Cloudy
33%
24°
41°
Sun
8/23
Partly Cloudy
44%
25°
40°
Mon
8/24
Partly Cloudy
49%
25°
36°
Tue
8/25
Partly Cloudy
40%
25°
38°
Wed
8/26
Heavy Rain
80%
24°
36°
Thu
8/27
Rain
83%
24°
35°
Fri
8/28
Drizzle
57%
24°
37°
Sat
8/29
Rain
58%
24°
37°
Sun
8/30
Drizzle
47%
24°
38°
Mon
8/31
Drizzle
52%
23°
38°
Tue
9/1
Drizzle
60%
23°
38°
Wed
9/2
Drizzle
60%
23°
37°
Thu
9/3
Drizzle
60%
23°
37°
Fri
9/4
Drizzle
60%
23°
37°
51
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
51 AQI 9.1 µg/m³
O3
Ground-level ozone
39 AQI 43 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 51 Moderate 39 51
Sun 44 Good 34 44
Mon 52 Moderate 48 52
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 Fri Aug 21, 22:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1866 J/kg
MLCAPE2515 J/kg
MUCAPE4918 J/kg
SBCIN-290 J/kg
MLCIN-94 J/kg
Lifted Index-5.4
Kinematics
0–6 km Shear11 kt
0–1 km Shear7 kt
Eff. Shear10 kt
0–1 km SRH25
0–3 km SRH16
Eff. SRH26
Storm Motion19° @ 20 kt
0–1 km EHI0.3
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index42.1
Thermo & Levels
PWAT2.41 in
0–3 km LR5.8 °C/km
700–500 LR6.2 °C/km
Total Totals52.7
LCL936 hPa
LFC782 hPa
EL157 hPa
Freezing Lvl15,443 ft