Heat Advisory — Sevier, AR, Howard, AR, Little River, AR, Hempstead, AR, Nevada, AR, Miller, AR, Lafayette, AR, 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, McCurtain, OK, Red River, TX, Bowie, TX, Franklin, TX, Titus, TX, Camp, TX, Morris, TX, Cass, TX, 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 County, Arkansas, United States

Last updated: 7:06 PM CDT  ·  Refresh
35°C
Feels like 38°
Clear
▲ 37°  /  ▼ 24°
Wind
6 mph SW
Humidity
41%
Dew Point
19°
Pressure
29.62 inHg
Visibility
10 mi
UV Index
2.7
Cloud Cover
2%
Sunrise
6:31 AM
Sunset
7:59 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Union County is currently clear at 35°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2102 J/kg) — isolated convective development possible. Sunrise: 6:31AM · Sunset: 7:59PM.

Alerts

Heat Advisory
Sevier, AR, Howard, AR, Little River, AR, Hempstead, AR, Nevada, AR, Miller, AR, Lafayette, AR, 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, McCurtain, OK, Red River, TX, Bowie, TX, Franklin, TX, Titus, TX, Camp, TX, Morris, TX, Cass, TX, 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
32 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
35°
4%
8 PM
33°
4%
9 PM
32°
4%
10 PM
29°
3%
11 PM
29°
3%
12 AM
28°
3%
1 AM
27°
3%
2 AM
28°
3%
3 AM
27°
3%
4 AM
27°
3%
5 AM
26°
3%
6 AM
24°
3%
7 AM
24°
3%
8 AM
26°
3%
9 AM
27°
3%
10 AM
29°
3%
11 AM
31°
3%
12 PM
32°
3%
1 PM
33°
3%
2 PM
37°
3%
3 PM
37°
3%
4 PM
37°
3%
5 PM
37°
3%
6 PM
36°
3%
7-Day Forecast
Tonight
37° 24°
Clear.
Thu
38° 24°
Clear.
Fri
38° 22°
Clear.
Sat
39° 23°
Clear.
Sun
42° 26°
Clear.
Mon
41° 27°
Clear.
Tue
40° 23°
Partly Cloudy with a 25% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 35° Clear 4% 6 mph SW 41%
8 PM 33° Clear 4% 4 mph SW 44%
9 PM 32° Clear 4% 4 mph SSW 47%
10 PM 29° Clear 3% 5 mph S 51%
11 PM 29° Clear 3% 5 mph S 55%
12 AM 28° Mostly Clear 3% 6 mph S 58%
1 AM 27° Mostly Clear 3% 7 mph SSW 60%
2 AM 28° Mostly Clear 3% 8 mph SSW 64%
3 AM 27° Mostly Clear 3% 7 mph SSW 70%
4 AM 27° Mostly Clear 3% 7 mph SSW 74%
5 AM 26° Mostly Clear 3% 7 mph SSW 77%
6 AM 24° Mostly Clear 3% 7 mph SSW 80%
7 AM 24° Clear 3% 7 mph SSW 82%
8 AM 26° Clear 3% 8 mph SW 75%
9 AM 27° Clear 3% 9 mph SW 68%
10 AM 29° Clear 3% 10 mph SW 62%
11 AM 31° Clear 3% 9 mph SW 55%
12 PM 32° Clear 3% 8 mph SW 48%
1 PM 33° Clear 3% 8 mph SW 42%
2 PM 37° Clear 3% 8 mph SW 40%
3 PM 37° Clear 3% 8 mph SW 39%
4 PM 37° Clear 3% 8 mph SW 38%
5 PM 37° Clear 3% 7 mph SSW 39%
6 PM 36° Clear 3% 7 mph SSW 40%
15-Day Forecast
Today
8/12
Clear
4%
24°
37°
Thu
8/13
Clear
3%
24°
38°
Fri
8/14
Clear
3%
22°
38°
Sat
8/15
Clear
3%
23°
39°
Sun
8/16
Clear
7%
26°
42°
Mon
8/17
Clear
7%
27°
41°
Tue
8/18
Partly Cloudy
25%
23°
40°
Wed
8/19
Partly Cloudy
21%
26°
40°
Thu
8/20
Partly Cloudy
46%
22°
41°
Fri
8/21
Partly Cloudy
39%
22°
42°
Sat
8/22
Drizzle
60%
22°
41°
Sun
8/23
Drizzle
60%
24°
39°
Mon
8/24
Drizzle
60%
24°
38°
Tue
8/25
Drizzle
60%
23°
37°
Wed
8/26
Drizzle
60%
22°
37°
32
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
32 AQI 5.7 µg/m³
O3
Ground-level ozone
31 AQI 34 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 32 Good 31 32
Fri 38 Good 32 38
Sat 58 Moderate 33 58
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 Aug 12, 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
SBCAPE943 J/kg
MLCAPE490 J/kg
MUCAPE943 J/kg
SBCIN-64 J/kg
MLCIN0 J/kg
Lifted Index-1.8
Kinematics
0–6 km Shear8 kt
0–1 km Shear5 kt
Eff. Shear7 kt
0–1 km SRH10
0–3 km SRH47
Eff. SRH47
Storm Motion350° @ 9 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index27.3
Thermo & Levels
PWAT1.61 in
0–3 km LR7.9 °C/km
700–500 LR5.5 °C/km
Total Totals44.3
LCL795 hPa
LFC704 hPa
EL186 hPa
Freezing Lvl16,765 ft