Extreme Heat Warning — Columbia, AR, Union, AR, Caddo, LA, Bossier, LA, Webster, LA, Claiborne, LA, Lincoln, LA, Union, LA, De Soto, LA, Red River, LA, Bienville, LA, Jackson, LA, Ouachita, LA, Sabine, LA, Natchitoches, LA, Winn, LA, Grant, LA, Caldwell, LA, La Salle, LA, Wood, TX, Upshur, TX, Marion, TX, Smith, TX, Gregg, TX, Harrison, TX, Cherokee, TX, Rusk, TX, Panola, TX, Nacogdoches, TX, Shelby, TX, Angelina, TX, San Augustine, TX, Sabine, TX 9:00 PM Heat Advisory — Columbia, AR, Union, AR, Caddo, LA, Bossier, LA, Webster, LA, Claiborne, LA, Lincoln, LA, Union, LA, De Soto, LA, Red River, LA, Bienville, LA, Jackson, LA, Ouachita, LA, Sabine, LA, Natchitoches, LA, Winn, LA, Grant, LA, Caldwell, LA, La Salle, LA, Wood, TX, Upshur, TX, Marion, TX, Smith, TX, Gregg, TX, Harrison, TX, Cherokee, TX, Rusk, TX, Panola, TX, Nacogdoches, TX, Shelby, TX, Angelina, TX, San Augustine, TX, Sabine, TX 8:00 PM

Union Parish, Louisiana, United States

Last updated: 5:05 PM CDT  ·  Refresh
38°C
Feels like 40°
Partly Cloudy
▲ 39°  /  ▼ 23°
Wind
6 mph NNW
Humidity
32%
Dew Point
19°
Pressure
29.73 inHg
Visibility
10 mi
UV Index
5.9
Cloud Cover
47%
Sunrise
6:37 AM
Sunset
7:47 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Union Parish is currently partly cloudy at 38°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1597 J/kg) — isolated convective development possible. Sunrise: 6:37AM · Sunset: 7:47PM.

Alerts

Extreme Heat Warning
Columbia, AR, Union, AR, Caddo, LA, Bossier, LA, Webster, LA, Claiborne, LA, Lincoln, LA, Union, LA, De Soto, LA, Red River, LA, Bienville, LA, Jackson, LA, Ouachita, LA, Sabine, LA, Natchitoches, LA, Winn, LA, Grant, LA, Caldwell, LA, La Salle, LA, Wood, TX, Upshur, TX, Marion, TX, Smith, TX, Gregg, TX, Harrison, TX, Cherokee, TX, Rusk, TX, Panola, TX, Nacogdoches, TX, Shelby, TX, Angelina, TX, San Augustine, TX, Sabine, TX
Expires 9:00 PM
Heat Advisory
Columbia, AR, Union, AR, Caddo, LA, Bossier, LA, Webster, LA, Claiborne, LA, Lincoln, LA, Union, LA, De Soto, LA, Red River, LA, Bienville, LA, Jackson, LA, Ouachita, LA, Sabine, LA, Natchitoches, LA, Winn, LA, Grant, LA, Caldwell, LA, La Salle, LA, Wood, TX, Upshur, TX, Marion, TX, Smith, TX, Gregg, TX, Harrison, TX, Cherokee, TX, Rusk, TX, Panola, TX, Nacogdoches, TX, Shelby, TX, Angelina, TX, San Augustine, TX, Sabine, TX
Expires 8:00 PM
53 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
38°
19%
6 PM
38°
30%
7 PM
37°
30%
8 PM
34°
29%
9 PM
33°
29%
10 PM
29°
22%
11 PM
28°
15%
12 AM
28°
13%
1 AM
27°
4%
2 AM
27°
4%
3 AM
26°
4%
4 AM
26°
3%
5 AM
25°
3%
6 AM
23°
3%
7 AM
23°
3%
8 AM
25°
16%
9 AM
27°
16%
10 AM
29°
19%
11 AM
31°
19%
12 PM
34°
19%
1 PM
36°
20%
2 PM
37°
25%
3 PM
37°
29%
4 PM
38°
32%
7-Day Forecast
Today
39° 23°
Partly Cloudy with a 29% chance of rain.
Sat
41° 23°
Mostly Clear with a 35% chance of rain.
Sun
40° 23°
Partly Cloudy with a 37% chance of rain.
Mon
38° 25°
Mostly Cloudy with a 61% chance of rain.
Tue
38° 24°
Mostly Clear with a 48% chance of rain.
Wed
38° 23°
Rain, 72% chance.
Thu
37° 23°
Rain, 66% chance.
TimeTempConditionsPrecipWindHumidity
Now 38° Partly Cloudy 19% 6 mph NNW 32%
6 PM 38° Partly Cloudy 30% 6 mph N 33%
7 PM 37° Partly Cloudy 30% 5 mph NNE 37%
8 PM 34° Partly Cloudy 29% 2 mph NNW 44%
9 PM 33° Mostly Cloudy 29% 4 mph W 50%
10 PM 29° Mostly Cloudy 22% 6 mph SSW 56%
11 PM 28° Mostly Cloudy 15% 5 mph SSW 61%
12 AM 28° Partly Cloudy 13% 5 mph SW 65%
1 AM 27° Partly Cloudy 4% 4 mph WSW 69%
2 AM 27° Partly Cloudy 4% 4 mph WSW 71%
3 AM 26° Mostly Clear 4% 4 mph W 72%
4 AM 26° Mostly Clear 3% 3 mph W 74%
5 AM 25° Mostly Clear 3% 3 mph W 75%
6 AM 23° Mostly Clear 3% 3 mph W 76%
7 AM 23° Mostly Clear 3% 3 mph W 76%
8 AM 25° Mostly Clear 16% 2 mph W 69%
9 AM 27° Clear 16% 3 mph SW 58%
10 AM 29° Clear 19% 3 mph SW 51%
11 AM 31° Clear 19% 3 mph WNW 47%
12 PM 34° Clear 19% 2 mph NNW 43%
1 PM 36° Clear 20% 3 mph NNW 38%
2 PM 37° Mostly Clear 25% 3 mph NNW 36%
3 PM 37° Mostly Clear 29% 3 mph N 35%
4 PM 38° Partly Cloudy 32% 4 mph NNE 33%
15-Day Forecast
Today
8/21
Partly Cloudy
29%
23°
39°
Sat
8/22
Mostly Clear
35%
23°
41°
Sun
8/23
Partly Cloudy
37%
23°
40°
Mon
8/24
Mostly Cloudy
61%
25°
38°
Tue
8/25
Mostly Clear
48%
24°
38°
Wed
8/26
Rain
72%
23°
38°
Thu
8/27
Rain
66%
23°
37°
Fri
8/28
Partly Cloudy
37%
21°
39°
Sat
8/29
Mostly Clear
27%
23°
38°
Sun
8/30
Mostly Clear
40%
23°
41°
Mon
8/31
Drizzle
60%
24°
40°
Tue
9/1
Clear
60%
24°
39°
Wed
9/2
Drizzle
60%
24°
39°
Thu
9/3
Drizzle
60%
24°
39°
Fri
9/4
Clear
60%
23°
39°
53
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
53 AQI 10.0 µg/m³
O3
Ground-level ozone
46 AQI 51 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sat 53 Moderate 46 53
Sun 47 Good 41 47
Mon 50 Good 44 50
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, 20:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE2100 J/kg
MLCAPE1689 J/kg
MUCAPE2100 J/kg
SBCIN-26 J/kg
MLCIN-51 J/kg
Lifted Index-5.5
Kinematics
0–6 km Shear11 kt
0–1 km Shear7 kt
Eff. Shear9 kt
0–1 km SRH25
0–3 km SRH52
Eff. SRH52
Storm Motion23° @ 20 kt
0–1 km EHI0.3
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index40.9
Thermo & Levels
PWAT1.88 in
0–3 km LR8.7 °C/km
700–500 LR6.5 °C/km
Total Totals52.0
LCL771 hPa
LFC727 hPa
EL160 hPa
Freezing Lvl15,240 ft