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

Harrison County, Texas, United States

Last updated: 7:46 PM CDT  ·  Refresh
36°C
Feels like 38°
Clear
▲ 37°  /  ▼ 23°
Wind
8 mph S
Humidity
38%
Dew Point
19°
Pressure
29.46 inHg
Visibility
10 mi
UV Index
0.9
Cloud Cover
5%
Sunrise
6:39 AM
Sunset
8:05 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Harrison County is currently clear at 36°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2025 J/kg) — isolated convective development possible. Sunrise: 6:39AM · Sunset: 8:05PM.

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
41 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
36°
8%
8 PM
34°
8%
9 PM
32°
3%
10 PM
31°
3%
11 PM
30°
3%
12 AM
28°
3%
1 AM
28°
3%
2 AM
27°
3%
3 AM
27°
3%
4 AM
26°
3%
5 AM
24°
3%
6 AM
23°
3%
7 AM
24°
3%
8 AM
27°
3%
9 AM
28°
3%
10 AM
30°
3%
11 AM
32°
3%
12 PM
33°
3%
1 PM
36°
3%
2 PM
38°
3%
3 PM
38°
3%
4 PM
38°
3%
5 PM
37°
3%
6 PM
36°
3%
7-Day Forecast
Tonight
37° 23°
Clear.
Thu
39° 23°
Clear.
Fri
39° 21°
Mostly Clear.
Sat
40° 23°
Clear.
Sun
43° 23°
Clear.
Mon
43° 22°
Clear.
Tue
42° 24°
Rain, 28% chance.
TimeTempConditionsPrecipWindHumidity
Now 36° Clear 8% 8 mph S 38%
8 PM 34° Clear 8% 7 mph S 41%
9 PM 32° Clear 3% 8 mph S 46%
10 PM 31° Clear 3% 9 mph S 52%
11 PM 30° Clear 3% 10 mph S 60%
12 AM 28° Clear 3% 10 mph SSW 66%
1 AM 28° Clear 3% 10 mph SSW 71%
2 AM 27° Clear 3% 9 mph SSW 75%
3 AM 27° Clear 3% 9 mph SSW 79%
4 AM 26° Clear 3% 8 mph SSW 82%
5 AM 24° Clear 3% 8 mph SSW 85%
6 AM 23° Clear 3% 8 mph SSW 87%
7 AM 24° Clear 3% 10 mph SSW 81%
8 AM 27° Clear 3% 12 mph SW 71%
9 AM 28° Clear 3% 12 mph SW 62%
10 AM 30° Clear 3% 12 mph SW 54%
11 AM 32° Clear 3% 11 mph SW 46%
12 PM 33° Clear 3% 11 mph SW 38%
1 PM 36° Clear 3% 10 mph SW 34%
2 PM 38° Clear 3% 10 mph SSW 31%
3 PM 38° Clear 3% 10 mph SSW 29%
4 PM 38° Clear 3% 10 mph SSW 29%
5 PM 37° Clear 3% 10 mph SSW 30%
6 PM 36° Clear 3% 10 mph SSW 31%
15-Day Forecast
Today
8/12
Clear
8%
23°
37°
Thu
8/13
Clear
3%
23°
39°
Fri
8/14
Mostly Clear
3%
21°
39°
Sat
8/15
Clear
3%
23°
40°
Sun
8/16
Clear
8%
23°
43°
Mon
8/17
Clear
8%
22°
43°
Tue
8/18
Rain
28%
24°
42°
Wed
8/19
Clear
8%
22°
41°
Thu
8/20
Drizzle
44%
20°
42°
Fri
8/21
Clear
21%
19°
42°
Sat
8/22
Drizzle
60%
21°
42°
Sun
8/23
Drizzle
60%
25°
39°
Mon
8/24
Drizzle
60%
24°
39°
Tue
8/25
Drizzle
60%
24°
38°
Wed
8/26
Drizzle
60%
23°
37°
41
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
41 AQI 7.4 µg/m³
O3
Ground-level ozone
31 AQI 35 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 41 Good 31 41
Fri 54 Moderate 34 54
Sat 63 Moderate 36 63
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, 23:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE903 J/kg
MLCAPE1004 J/kg
MUCAPE1071 J/kg
SBCIN-59 J/kg
MLCIN0 J/kg
Lifted Index-1.9
Kinematics
0–6 km Shear9 kt
0–1 km Shear5 kt
Eff. Shear7 kt
0–1 km SRH4
0–3 km SRH41
Eff. SRH41
Storm Motion71° @ 7 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index30.7
Thermo & Levels
PWAT1.75 in
0–3 km LR8.0 °C/km
700–500 LR5.8 °C/km
Total Totals47.5
LCL782 hPa
LFC677 hPa
EL187 hPa
Freezing Lvl16,371 ft