Heat Advisory — Cleburne, AR, Southern Johnson County, AR, Southern Pope County, AR, Southeast Van Buren County, AR 8:00 PM

Clark County, Arkansas, United States

Last updated: 3:49 PM CDT  ·  Refresh
36°C
Feels like 40°
Mostly Clear
▲ 36°  /  ▼ 21°
Wind
3 mph SW
Humidity
42%
Dew Point
21°
Pressure
29.67 inHg
Visibility
10 mi
UV Index
7.5
Cloud Cover
16%
Sunrise
6:54 AM
Sunset
7:21 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Clark County is currently mostly clear at 36°C. Precipitation is likely — peak probability 51% around 3 PM. Atmospheric instability is elevated (CAPE up to 1792 J/kg) — isolated convective development possible. Sunrise: 6:54AM · Sunset: 7:21PM.

Alerts

Heat Advisory
Cleburne, AR, Southern Johnson County, AR, Southern Pope County, AR, Southeast Van Buren County, AR
Expires 8:00 PM
43 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
36°
23%
4 PM
36°
40%
5 PM
34°
39%
6 PM
32°
39%
7 PM
30°
38%
8 PM
29°
37%
9 PM
26°
31%
10 PM
25°
13%
11 PM
24°
13%
12 AM
24°
8%
1 AM
24°
8%
2 AM
23°
9%
3 AM
23°
9%
4 AM
23°
9%
5 AM
22°
9%
6 AM
22°
9%
7 AM
23°
26%
8 AM
24°
26%
9 AM
26°
27%
10 AM
29°
27%
11 AM
29°
33%
12 PM
31°
34%
1 PM
34°
34%
2 PM
34°
40%
7-Day Forecast
Today
36° 21°
Mostly Clear with a 39% chance of rain.
Mon
39° 22°
Rain, 50% chance.
Tue
39° 23°
Mostly Clear with a 24% chance of rain.
Wed
37° 24°
Partly Cloudy with a 20% chance of rain.
Thu
38° 22°
Clear.
Fri
39° 22°
Clear.
Sat
40° 22°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 36° Mostly Clear 23% 3 mph SW 42%
4 PM 36° Partly Cloudy 40% 4 mph S 49%
5 PM 34° Partly Cloudy 39% 4 mph ESE 58%
6 PM 32° Partly Cloudy 39% 6 mph E 69%
7 PM 30° Partly Cloudy 38% 5 mph E 72%
8 PM 29° Partly Cloudy 37% 4 mph E 74%
9 PM 26° Partly Cloudy 31% 3 mph ENE 74%
10 PM 25° Partly Cloudy 13% 3 mph ENE 76%
11 PM 24° Partly Cloudy 13% 3 mph ENE 78%
12 AM 24° Partly Cloudy 8% 3 mph NE 80%
1 AM 24° Partly Cloudy 8% 3 mph E 81%
2 AM 23° Partly Cloudy 9% 2 mph N 82%
3 AM 23° Partly Cloudy 9% 3 mph N 83%
4 AM 23° Partly Cloudy 9% 2 mph NNW 84%
5 AM 22° Mostly Clear 9% 2 mph NNW 85%
6 AM 22° Mostly Clear 9% 2 mph W 86%
7 AM 23° Mostly Clear 26% 2 mph WSW 83%
8 AM 24° Mostly Clear 26% 3 mph WSW 76%
9 AM 26° Clear 27% 3 mph WSW 72%
10 AM 29° Mostly Clear 27% 3 mph WSW 67%
11 AM 29° Mostly Clear 33% 2 mph SSW 63%
12 PM 31° Mostly Clear 34% 2 mph SE 59%
1 PM 34° Mostly Clear 34% 3 mph SE 57%
2 PM 34° Mostly Clear 40% 3 mph SE 57%
15-Day Forecast
Today
9/13
Mostly Clear
39%
21°
36°
Mon
9/14
Rain
50%
22°
39°
Tue
9/15
Mostly Clear
24%
23°
39°
Wed
9/16
Partly Cloudy
20%
24°
37°
Thu
9/17
Clear
19%
22°
38°
Fri
9/18
Clear
18%
22°
39°
Sat
9/19
Clear
19%
22°
40°
Sun
9/20
Clear
60%
20°
35°
Mon
9/21
Drizzle
60%
18°
34°
Tue
9/22
Drizzle
60%
13°
33°
Wed
9/23
Drizzle
60%
12°
31°
Thu
9/24
Drizzle
60%
18°
32°
Fri
9/25
Drizzle
60%
18°
32°
Sat
9/26
Clear
25%
18°
32°
Sun
9/27
Clear
25%
18°
33°
43
Good
U.S. Air Quality Index · Dominant: O3
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
42 AQI 7.5 µg/m³
O3
Ground-level ozone
Dominant
43 AQI 46 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 43 Good 43 42
Tue 38 Good 38 37
Wed 46 Good 41 46
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 Sun Sep 13, 19:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE2393 J/kg
MLCAPE1745 J/kg
MUCAPE2393 J/kg
SBCIN-0 J/kg
MLCIN-26 J/kg
Lifted Index-5.8
Kinematics
0–6 km Shear13 kt
0–1 km Shear2 kt
Eff. Shear2 kt
0–1 km SRH-2
0–3 km SRH-11
Eff. SRH-11
Storm Motion94° @ 13 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index33.7
Thermo & Levels
PWAT1.83 in
0–3 km LR8.5 °C/km
700–500 LR5.9 °C/km
Total Totals48.0
LCL811 hPa
LFC799 hPa
EL141 hPa
Freezing Lvl15,581 ft