Severe Thunderstorm Watch 8:00 PM Severe Thunderstorm Watch 8:00 PM Heat Advisory — Columbus, NC, Inland Pender, NC, Coastal Pender, NC, Inland New Hanover, NC, Coastal New Hanover, NC, Inland Brunswick, NC, Coastal Brunswick, NC, Coastal Horry, SC, Inland Georgetown, SC, Coastal Georgetown, SC, Central Horry, SC, Northern Horry, SC 7:00 PM

Horry County, South Carolina, United States

Last updated: 4:02 PM CDT  ·  Refresh
32°C
Feels like 39°
Partly Cloudy
▲ 33°  /  ▼ 24°
Wind
10 mph SE
Humidity
68%
Dew Point
24°
Pressure
29.91 inHg
Visibility
10 mi
UV Index
6.1
Cloud Cover
48%
Sunrise
6:41 AM
Sunset
7:55 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Horry County is currently partly cloudy at 32°C. Precipitation is likely — peak probability 90% around 7 PM. Atmospheric instability is elevated (CAPE up to 2405 J/kg) — isolated convective development possible. Sunrise: 6:41AM · Sunset: 7:55PM.

Alerts

Severe Thunderstorm Watch
Expires 8:00 PM
Severe Thunderstorm Watch
Expires 8:00 PM
Heat Advisory
Columbus, NC, Inland Pender, NC, Coastal Pender, NC, Inland New Hanover, NC, Coastal New Hanover, NC, Inland Brunswick, NC, Coastal Brunswick, NC, Coastal Horry, SC, Inland Georgetown, SC, Coastal Georgetown, SC, Central Horry, SC, Northern Horry, SC
Expires 7:00 PM
48 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
32°
55%
6 PM
31°
83%
7 PM
27°
90%
8 PM
27°
90%
9 PM
26°
73%
10 PM
26°
84%
11 PM
25°
75%
12 AM
25°
73%
1 AM
24°
73%
2 AM
24°
67%
3 AM
24°
42%
4 AM
24°
38%
5 AM
24°
34%
6 AM
24°
41%
7 AM
24°
50%
8 AM
25°
51%
9 AM
26°
51%
10 AM
28°
60%
11 AM
29°
60%
12 PM
29°
61%
1 PM
29°
66%
2 PM
31°
66%
3 PM
31°
67%
4 PM
32°
75%
7-Day Forecast
Today
33° 24°
Partly Cloudy with a 90% chance of rain.
Sat
33° 24°
Mostly Cloudy with a 67% chance of rain.
Sun
34° 23°
Mostly Clear.
Mon
34° 24°
Partly Cloudy with a 60% chance of rain.
Tue
32° 23°
Rain, 69% chance.
Wed
32° 23°
Rain, 70% chance.
Thu
33° 24°
Rain, 90% chance.
TimeTempConditionsPrecipWindHumidity
Now 32° Partly Cloudy 55% 10 mph SE 68%
6 PM 31° Overcast 83% 8 mph ESE 75%
7 PM 27° Overcast 90% 8 mph E 83%
8 PM 27° Overcast 90% 6 mph E 90%
9 PM 26° Overcast 73% 5 mph E 92%
10 PM 26° Overcast 84% 5 mph E 93%
11 PM 25° Thunderstorm 75% 5 mph ESE 94%
12 AM 25° Overcast 73% 3 mph ESE 94%
1 AM 24° Thunderstorm 73% 4 mph WNW 93%
2 AM 24° Rain 67% 4 mph ENE 92%
3 AM 24° Overcast 42% 4 mph ESE 92%
4 AM 24° Mostly Cloudy 38% 3 mph ESE 91%
5 AM 24° Mostly Cloudy 34% 4 mph SE 91%
6 AM 24° Mostly Cloudy 41% 4 mph SSE 91%
7 AM 24° Mostly Cloudy 50% 3 mph SSE 90%
8 AM 25° Mostly Cloudy 51% 4 mph SSW 90%
9 AM 26° Mostly Cloudy 51% 4 mph SSW 84%
10 AM 28° Mostly Cloudy 60% 5 mph SW 78%
11 AM 29° Partly Cloudy 60% 5 mph SW 74%
12 PM 29° Mostly Cloudy 61% 6 mph SW 72%
1 PM 29° Mostly Cloudy 66% 6 mph SW 70%
2 PM 31° Rain 66% 6 mph SW 67%
3 PM 31° Rain 67% 6 mph SSW 68%
4 PM 32° Rain 75% 6 mph SSW 69%
15-Day Forecast
Today
8/21
Partly Cloudy
90%
24°
33°
Sat
8/22
Mostly Cloudy
67%
24°
33°
Sun
8/23
Mostly Clear
17%
23°
34°
Mon
8/24
Partly Cloudy
60%
24°
34°
Tue
8/25
Rain
69%
23°
32°
Wed
8/26
Rain
70%
23°
32°
Thu
8/27
Rain
90%
24°
33°
Fri
8/28
Rain
72%
23°
33°
Sat
8/29
Rain
68%
24°
32°
Sun
8/30
Drizzle
51%
24°
34°
Mon
8/31
Drizzle
60%
24°
34°
Tue
9/1
Drizzle
60%
24°
35°
Wed
9/2
Drizzle
60%
23°
34°
Thu
9/3
Drizzle
60%
23°
33°
Fri
9/4
Drizzle
60%
23°
33°
48
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
33 AQI 5.9 µg/m³
O3
Ground-level ozone
Dominant
48 AQI 53 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sat 48 Good 48 33
Sun 35 Good 35 19
Mon 40 Good 40 31
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, 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
SBCAPE3680 J/kg
MLCAPE3028 J/kg
MUCAPE3680 J/kg
SBCIN0 J/kg
MLCIN-10 J/kg
Lifted Index-7.7
Kinematics
0–6 km Shear17 kt
0–1 km Shear4 kt
Eff. Shear15 kt
0–1 km SRH11
0–3 km SRH56
Eff. SRH56
Storm Motion277° @ 15 kt
0–1 km EHI0.3
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index38.1
Thermo & Levels
PWAT2.46 in
0–3 km LR7.4 °C/km
700–500 LR5.6 °C/km
Total Totals48.5
LCL906 hPa
LFC1013 hPa
EL142 hPa
Freezing Lvl14,551 ft