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: 5:21 PM CDT  ·  Refresh
27°C
Feels like 29°
Rain
▲ 32°  /  ▼ 23°
Wind
7 mph NE
Humidity
81%
Dew Point
24°
Pressure
29.92 inHg
Visibility
10 mi
UV Index
1.6
Cloud Cover
94%
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 rain at 27°C. Precipitation is likely — peak probability 86% around 7 PM. Atmospheric instability is elevated (CAPE up to 2142 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
27°
80%
7 PM
27°
86%
8 PM
26°
79%
9 PM
25°
83%
10 PM
24°
82%
11 PM
24°
68%
12 AM
24°
65%
1 AM
24°
41%
2 AM
24°
36%
3 AM
24°
43%
4 AM
23°
47%
5 AM
24°
52%
6 AM
24°
53%
7 AM
24°
51%
8 AM
26°
51%
9 AM
28°
59%
10 AM
29°
63%
11 AM
29°
64%
12 PM
30°
64%
1 PM
31°
56%
2 PM
32°
53%
3 PM
32°
57%
4 PM
31°
57%
5 PM
30°
45%
7-Day Forecast
Tonight
32° 23°
Rain, 83% chance.
Sat
34° 23°
Partly Cloudy with a 65% chance of rain.
Sun
34° 24°
Partly Cloudy with a 25% chance of rain.
Mon
34° 23°
Mostly Clear with a 53% chance of rain.
Tue
32° 23°
Rain, 63% chance.
Wed
33° 23°
Rain, 72% chance.
Thu
33° 24°
Rain, 73% chance.
TimeTempConditionsPrecipWindHumidity
Now 27° Rain 80% 7 mph NE 81%
7 PM 27° Mostly Cloudy 86% 5 mph NE 88%
8 PM 26° Mostly Cloudy 79% 4 mph NE 93%
9 PM 25° Overcast 83% 3 mph NNE 94%
10 PM 24° Heavy Rain 82% 5 mph NNW 95%
11 PM 24° Heavy Rain 68% 4 mph NE 95%
12 AM 24° Overcast 65% 4 mph E 95%
1 AM 24° Overcast 41% 4 mph E 94%
2 AM 24° Overcast 36% 4 mph ESE 94%
3 AM 24° Mostly Cloudy 43% 4 mph ESE 94%
4 AM 23° Mostly Cloudy 47% 4 mph ESE 94%
5 AM 24° Mostly Cloudy 52% 3 mph SE 93%
6 AM 24° Mostly Cloudy 53% 3 mph S 92%
7 AM 24° Mostly Cloudy 51% 4 mph SSW 90%
8 AM 26° Mostly Cloudy 51% 4 mph SW 88%
9 AM 28° Partly Cloudy 59% 5 mph SW 84%
10 AM 29° Partly Cloudy 63% 5 mph SW 79%
11 AM 29° Rain 64% 5 mph SW 74%
12 PM 30° Partly Cloudy 64% 5 mph SW 70%
1 PM 31° Partly Cloudy 56% 5 mph SW 66%
2 PM 32° Partly Cloudy 53% 5 mph SW 64%
3 PM 32° Partly Cloudy 57% 5 mph SSW 66%
4 PM 31° Partly Cloudy 57% 6 mph SSW 67%
5 PM 30° Partly Cloudy 45% 6 mph S 69%
15-Day Forecast
Today
8/21
Rain
83%
23°
32°
Sat
8/22
Partly Cloudy
65%
23°
34°
Sun
8/23
Partly Cloudy
25%
24°
34°
Mon
8/24
Mostly Clear
53%
23°
34°
Tue
8/25
Rain
63%
23°
32°
Wed
8/26
Rain
72%
23°
33°
Thu
8/27
Rain
73%
24°
33°
Fri
8/28
Rain
74%
23°
33°
Sat
8/29
Rain
73%
24°
32°
Sun
8/30
Drizzle
54%
23°
34°
Mon
8/31
Drizzle
64%
22°
34°
Tue
9/1
Drizzle
60%
24°
36°
Wed
9/2
Drizzle
60%
23°
34°
Thu
9/3
Drizzle
60%
23°
34°
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, 21:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1867 J/kg
MLCAPE1314 J/kg
MUCAPE2038 J/kg
SBCIN-64 J/kg
MLCIN-95 J/kg
Lifted Index-5.4
Kinematics
0–6 km Shear21 kt
0–1 km Shear22 kt
Eff. Shear20 kt
0–1 km SRH132
0–3 km SRH128
Eff. SRH128
Storm Motion253° @ 20 kt
0–1 km EHI1.5
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell2.6
K-Index38.2
Thermo & Levels
PWAT2.13 in
0–3 km LR5.8 °C/km
700–500 LR5.7 °C/km
Total Totals49.3
LCL965 hPa
LFC806 hPa
EL167 hPa
Freezing Lvl14,882 ft