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

Columbia County, Arkansas, United States

Last updated: 5:07 PM CDT  ·  Refresh
38°C
Feels like 41°
Partly Cloudy
▲ 38°  /  ▼ 22°
Wind
6 mph N
Humidity
37%
Dew Point
19°
Pressure
29.62 inHg
Visibility
10 mi
UV Index
6.3
Cloud Cover
36%
Sunrise
6:39 AM
Sunset
7:51 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Columbia County is currently partly cloudy at 38°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1669 J/kg) — isolated convective development possible. Sunrise: 6:39AM · Sunset: 7:51PM.

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
54 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
38°
15%
6 PM
38°
16%
7 PM
37°
16%
8 PM
34°
15%
9 PM
32°
14%
10 PM
29°
7%
11 PM
28°
4%
12 AM
27°
4%
1 AM
26°
4%
2 AM
27°
4%
3 AM
26°
4%
4 AM
25°
3%
5 AM
24°
3%
6 AM
22°
3%
7 AM
22°
3%
8 AM
24°
3%
9 AM
27°
8%
10 AM
29°
8%
11 AM
30°
8%
12 PM
33°
8%
1 PM
34°
8%
2 PM
37°
11%
3 PM
38°
11%
4 PM
39°
16%
7-Day Forecast
Today
38° 22°
Partly Cloudy.
Sat
41° 22°
Partly Cloudy with a 31% chance of rain.
Sun
41° 22°
Partly Cloudy with a 37% chance of rain.
Mon
41° 25°
Partly Cloudy with a 61% chance of rain.
Tue
39° 23°
Partly Cloudy with a 33% chance of rain.
Wed
39° 25°
Rain, 67% chance.
Thu
39° 23°
Drizzle, 56% chance.
TimeTempConditionsPrecipWindHumidity
Now 38° Partly Cloudy 15% 6 mph N 37%
6 PM 38° Mostly Cloudy 16% 5 mph N 35%
7 PM 37° Mostly Cloudy 16% 4 mph NNE 38%
8 PM 34° Partly Cloudy 15% 3 mph NNE 45%
9 PM 32° Partly Cloudy 14% 3 mph ENE 52%
10 PM 29° Partly Cloudy 7% 4 mph S 58%
11 PM 28° Partly Cloudy 4% 3 mph SW 61%
12 AM 27° Partly Cloudy 4% 3 mph SW 64%
1 AM 26° Partly Cloudy 4% 4 mph SSW 67%
2 AM 27° Mostly Clear 4% 3 mph SW 70%
3 AM 26° Mostly Clear 4% 3 mph WSW 72%
4 AM 25° Clear 3% 3 mph W 74%
5 AM 24° Mostly Clear 3% 3 mph W 76%
6 AM 22° Mostly Clear 3% 4 mph WSW 77%
7 AM 22° Mostly Clear 3% 3 mph SW 78%
8 AM 24° Mostly Clear 3% 3 mph WSW 71%
9 AM 27° Mostly Clear 8% 4 mph SW 61%
10 AM 29° Mostly Clear 8% 5 mph SW 55%
11 AM 30° Mostly Clear 8% 4 mph SW 51%
12 PM 33° Mostly Clear 8% 4 mph WSW 47%
1 PM 34° Mostly Clear 8% 4 mph WSW 44%
2 PM 37° Mostly Clear 11% 3 mph SW 40%
3 PM 38° Partly Cloudy 11% 3 mph SSW 37%
4 PM 39° Partly Cloudy 16% 4 mph SE 35%
15-Day Forecast
Today
8/21
Partly Cloudy
15%
22°
38°
Sat
8/22
Partly Cloudy
31%
22°
41°
Sun
8/23
Partly Cloudy
37%
22°
41°
Mon
8/24
Partly Cloudy
61%
25°
41°
Tue
8/25
Partly Cloudy
33%
23°
39°
Wed
8/26
Rain
67%
25°
39°
Thu
8/27
Drizzle
56%
23°
39°
Fri
8/28
Mostly Clear
23%
21°
40°
Sat
8/29
Clear
47%
24°
39°
Sun
8/30
Mostly Clear
40%
23°
42°
Mon
8/31
Clear
60%
24°
41°
Tue
9/1
Clear
60%
24°
39°
Wed
9/2
Drizzle
60%
24°
39°
Thu
9/3
Drizzle
60%
24°
40°
Fri
9/4
Clear
60%
23°
39°
54
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
54 AQI 10.8 µg/m³
O3
Ground-level ozone
49 AQI 53 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sat 54 Moderate 49 54
Sun 48 Good 38 48
Mon 48 Good 43 48
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
SBCAPE2099 J/kg
MLCAPE2061 J/kg
MUCAPE2261 J/kg
SBCIN-45 J/kg
MLCIN-62 J/kg
Lifted Index-6.1
Kinematics
0–6 km Shear14 kt
0–1 km Shear7 kt
Eff. Shear11 kt
0–1 km SRH20
0–3 km SRH36
Eff. SRH36
Storm Motion22° @ 20 kt
0–1 km EHI0.3
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index37.9
Thermo & Levels
PWAT1.90 in
0–3 km LR8.4 °C/km
700–500 LR7.0 °C/km
Total Totals52.7
LCL771 hPa
LFC707 hPa
EL162 hPa
Freezing Lvl14,997 ft