Extreme Heat Warning — Sevier, AR, Howard, AR, Little River, AR, Hempstead, AR, Nevada, AR, Miller, AR, Lafayette, AR, Columbia, AR, Union, AR, Claiborne, LA, Lincoln, LA, Union, LA, Jackson, LA, Ouachita, LA, Winn, LA, Grant, LA, Caldwell, LA, La Salle, LA, McCurtain, OK, Red River, TX, Bowie, TX 8:00 PM

Columbia County, Arkansas, United States

Last updated: 11:17 AM CDT  ·  Refresh
34°C
Feels like 41°
Clear
▲ 38°  /  ▼ 25°
Wind
5 mph NW
Humidity
51%
Dew Point
23°
Pressure
29.56 inHg
Visibility
10 mi
UV Index
9.1
Cloud Cover
7%
Sunrise
6:18 AM
Sunset
8:19 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Columbia County is currently clear at 35°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1847 J/kg) — isolated convective development possible. Sunrise: 6:18AM · Sunset: 8:19PM.

Alerts

Extreme Heat Warning
Sevier, AR, Howard, AR, Little River, AR, Hempstead, AR, Nevada, AR, Miller, AR, Lafayette, AR, Columbia, AR, Union, AR, Claiborne, LA, Lincoln, LA, Union, LA, Jackson, LA, Ouachita, LA, Winn, LA, Grant, LA, Caldwell, LA, La Salle, LA, McCurtain, OK, Red River, TX, Bowie, TX
Expires 8:00 PM
68 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
34°
3%
12 PM
35°
3%
1 PM
37°
3%
2 PM
38°
3%
3 PM
38°
3%
4 PM
38°
11%
5 PM
37°
10%
6 PM
37°
11%
7 PM
36°
11%
8 PM
34°
14%
9 PM
31°
19%
10 PM
30°
13%
11 PM
29°
13%
12 AM
28°
8%
1 AM
28°
9%
2 AM
28°
9%
3 AM
27°
9%
4 AM
27°
7%
5 AM
25°
7%
6 AM
26°
3%
7 AM
26°
3%
8 AM
27°
3%
9 AM
29°
3%
10 AM
30°
3%
7-Day Forecast
Today
38° 25°
Mostly Clear.
Wed
37° 25°
Mostly Clear.
Thu
36° 22°
Partly Cloudy.
Fri
35° 23°
Partly Cloudy with a 24% chance of rain.
Sat
36° 23°
Clear.
Sun
38° 24°
Clear.
Mon
39° 24°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 34° Clear 3% 5 mph NW 51%
12 PM 35° Mostly Clear 3% 6 mph NW 45%
1 PM 37° Mostly Clear 3% 5 mph NW 42%
2 PM 38° Mostly Clear 3% 5 mph NNW 42%
3 PM 38° Partly Cloudy 3% 5 mph NNW 42%
4 PM 38° Partly Cloudy 11% 5 mph N 42%
5 PM 37° Partly Cloudy 10% 5 mph N 45%
6 PM 37° Partly Cloudy 11% 4 mph N 47%
7 PM 36° Partly Cloudy 11% 4 mph NNE 50%
8 PM 34° Mostly Clear 14% 3 mph NNE 56%
9 PM 31° Mostly Clear 19% 3 mph NNE 60%
10 PM 30° Mostly Clear 13% 3 mph ESE 65%
11 PM 29° Mostly Clear 13% 3 mph S 67%
12 AM 28° Clear 8% 3 mph SSW 69%
1 AM 28° Clear 9% 3 mph SW 72%
2 AM 28° Mostly Clear 9% 3 mph SW 74%
3 AM 27° Mostly Clear 9% 4 mph W 75%
4 AM 27° Mostly Clear 7% 4 mph N 77%
5 AM 25° Mostly Clear 7% 4 mph N 78%
6 AM 26° Mostly Clear 3% 4 mph N 78%
7 AM 26° Mostly Clear 3% 5 mph NNE 78%
8 AM 27° Mostly Clear 3% 6 mph NNE 76%
9 AM 29° Mostly Clear 3% 7 mph NE 73%
10 AM 30° Mostly Clear 3% 8 mph NE 69%
15-Day Forecast
Today
7/21
Mostly Clear
14%
25°
38°
Wed
7/22
Mostly Clear
9%
25°
37°
Thu
7/23
Partly Cloudy
11%
22°
36°
Fri
7/24
Partly Cloudy
24%
23°
35°
Sat
7/25
Clear
16%
23°
36°
Sun
7/26
Clear
17%
24°
38°
Mon
7/27
Clear
8%
24°
39°
Tue
7/28
Clear
43%
24°
42°
Wed
7/29
Clear
43%
25°
41°
Thu
7/30
Clear
21%
24°
41°
Fri
7/31
Clear
25%
25°
41°
Sat
8/1
Drizzle
60%
24°
40°
Sun
8/2
Drizzle
60%
24°
39°
Mon
8/3
Drizzle
60%
23°
38°
Tue
8/4
Drizzle
60%
23°
38°
68
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
68 AQI 18.2 µg/m³
O3
Ground-level ozone
35 AQI 38 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Wed 68 Moderate 35 68
Thu 57 Moderate 39 57
Fri 55 Moderate 33 55
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, 15:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE2472 J/kg
MLCAPE1281 J/kg
MUCAPE2472 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-4.0
Kinematics
0–6 km Shear13 kt
0–1 km Shear5 kt
Eff. Shear17 kt
0–1 km SRH-1
0–3 km SRH-36
Eff. SRH-36
Storm Motion335° @ 23 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index34.8
Thermo & Levels
PWAT1.98 in
0–3 km LR7.5 °C/km
700–500 LR5.2 °C/km
Total Totals44.5
LCL847 hPa
LFC1001 hPa
EL139 hPa
Freezing Lvl17,740 ft