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

Howard County, Arkansas, United States

Last updated: 11:15 AM CDT  ·  Refresh
34°C
Feels like 40°
Clear
▲ 39°  /  ▼ 24°
Wind
5 mph WNW
Humidity
55%
Dew Point
23°
Pressure
29.36 inHg
Visibility
10 mi
UV Index
9.0
Cloud Cover
6%
Sunrise
6:19 AM
Sunset
8:24 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Howard County is currently clear at 34°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2301 J/kg) — isolated convective development possible. Sunrise: 6:19AM · Sunset: 8:24PM.

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
63 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
34°
3%
12 PM
36°
3%
1 PM
37°
3%
2 PM
38°
3%
3 PM
37°
3%
4 PM
37°
3%
5 PM
37°
3%
6 PM
37°
3%
7 PM
37°
3%
8 PM
35°
3%
9 PM
33°
3%
10 PM
31°
5%
11 PM
31°
5%
12 AM
30°
5%
1 AM
29°
5%
2 AM
28°
5%
3 AM
28°
5%
4 AM
28°
3%
5 AM
27°
3%
6 AM
26°
3%
7 AM
26°
3%
8 AM
27°
3%
9 AM
27°
3%
10 AM
30°
3%
7-Day Forecast
Today
39° 24°
Mostly Clear.
Wed
37° 24°
Clear.
Thu
33° 20°
Mostly Clear.
Fri
33° 22°
Mostly Cloudy with a 21% chance of rain.
Sat
36° 22°
Clear with a 29% chance of rain.
Sun
37° 23°
Clear.
Mon
38° 22°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 34° Clear 3% 5 mph WNW 55%
12 PM 36° Mostly Clear 3% 4 mph WNW 47%
1 PM 37° Mostly Clear 3% 3 mph WNW 43%
2 PM 38° Partly Cloudy 3% 3 mph WNW 44%
3 PM 37° Mostly Cloudy 3% 3 mph NW 46%
4 PM 37° Partly Cloudy 3% 3 mph N 47%
5 PM 37° Partly Cloudy 3% 2 mph N 48%
6 PM 37° Mostly Clear 3% 2 mph NNW 50%
7 PM 37° Mostly Clear 3% 2 mph NNW 53%
8 PM 35° Mostly Clear 3% 2 mph NW 56%
9 PM 33° Mostly Clear 3% 2 mph WNW 59%
10 PM 31° Clear 5% 2 mph WNW 61%
11 PM 31° Clear 5% 3 mph NW 62%
12 AM 30° Clear 5% 4 mph NNW 62%
1 AM 29° Clear 5% 4 mph N 62%
2 AM 28° Clear 5% 5 mph N 62%
3 AM 28° Clear 5% 6 mph NNE 62%
4 AM 28° Clear 3% 7 mph NNE 62%
5 AM 27° Clear 3% 7 mph NNE 65%
6 AM 26° Clear 3% 8 mph NE 68%
7 AM 26° Clear 3% 8 mph NE 69%
8 AM 27° Clear 3% 8 mph NE 66%
9 AM 27° Clear 3% 9 mph NE 63%
10 AM 30° Clear 3% 9 mph NE 59%
15-Day Forecast
Today
7/21
Mostly Clear
5%
24°
39°
Wed
7/22
Clear
5%
24°
37°
Thu
7/23
Mostly Clear
3%
20°
33°
Fri
7/24
Mostly Cloudy
21%
22°
33°
Sat
7/25
Clear
29%
22°
36°
Sun
7/26
Clear
16%
23°
37°
Mon
7/27
Clear
8%
22°
38°
Tue
7/28
Clear
43%
22°
40°
Wed
7/29
Clear
43%
23°
39°
Thu
7/30
Clear
21%
23°
40°
Fri
7/31
Clear
25%
24°
39°
Sat
8/1
Drizzle
60%
24°
39°
Sun
8/2
Drizzle
60%
23°
37°
Mon
8/3
Drizzle
60%
23°
36°
Tue
8/4
Drizzle
60%
23°
37°
63
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
63 AQI 15.8 µg/m³
O3
Ground-level ozone
35 AQI 39 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Wed 63 Moderate 35 63
Thu 56 Moderate 35 56
Fri 53 Moderate 41 53
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
SBCAPE2718 J/kg
MLCAPE1107 J/kg
MUCAPE2718 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-4.5
Kinematics
0–6 km Shear12 kt
0–1 km Shear6 kt
Eff. Shear15 kt
0–1 km SRH-13
0–3 km SRH-34
Eff. SRH-34
Storm Motion325° @ 22 kt
0–1 km EHI-0.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index31.1
Thermo & Levels
PWAT1.81 in
0–3 km LR7.3 °C/km
700–500 LR5.4 °C/km
Total Totals43.6
LCL852 hPa
LFC994 hPa
EL135 hPa
Freezing Lvl17,507 ft