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

Santee Coastal Reserve, Georgetown County, South Carolina, United States

Last updated: 6:16 PM CDT  ·  Refresh
29°C
Feels like 34°
Partly Cloudy
▲ 31°  /  ▼ 25°
Wind
13 mph S
Humidity
76%
Dew Point
25°
Pressure
29.95 inHg
Visibility
10 mi
UV Index
2.1
Cloud Cover
32%
Sunrise
6:44 AM
Sunset
7:55 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Santee Coastal Reserve is currently partly cloudy at 29°C. Precipitation is likely — peak probability 78% around 7 PM. Atmospheric instability is elevated (CAPE up to 2979 J/kg) — isolated convective development possible. Sunrise: 6:44AM · 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
52 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
29°
28%
8 PM
29°
46%
9 PM
28°
47%
10 PM
27°
52%
11 PM
27°
53%
12 AM
27°
57%
1 AM
27°
55%
2 AM
27°
64%
3 AM
27°
71%
4 AM
27°
72%
5 AM
26°
72%
6 AM
25°
72%
7 AM
25°
72%
8 AM
26°
54%
9 AM
26°
59%
10 AM
27°
56%
11 AM
27°
54%
12 PM
28°
55%
1 PM
28°
67%
2 PM
29°
65%
3 PM
29°
73%
4 PM
29°
73%
5 PM
29°
74%
6 PM
29°
77%
7-Day Forecast
Tonight
31° 25°
Partly Cloudy with a 52% chance of rain.
Sat
31° 25°
Mostly Cloudy with a 77% chance of rain.
Sun
31° 25°
Mostly Clear with a 42% chance of rain.
Mon
31° 25°
Mostly Clear with a 55% chance of rain.
Tue
30° 25°
Rain, 83% chance.
Wed
29° 23°
Rain, 83% chance.
Thu
30° 24°
Rain, 83% chance.
TimeTempConditionsPrecipWindHumidity
Now 29° Partly Cloudy 28% 13 mph S 76%
8 PM 29° Mostly Clear 46% 11 mph S 80%
9 PM 28° Partly Cloudy 47% 7 mph SSW 81%
10 PM 27° Mostly Cloudy 52% 9 mph W 83%
11 PM 27° Mostly Cloudy 53% 8 mph SW 84%
12 AM 27° Mostly Cloudy 57% 7 mph S 85%
1 AM 27° Mostly Cloudy 55% 7 mph S 86%
2 AM 27° Heavy Rain 64% 7 mph S 87%
3 AM 27° Heavy Rain 71% 8 mph S 87%
4 AM 27° Heavy Rain 72% 8 mph SSW 86%
5 AM 26° Heavy Rain 72% 8 mph SSW 86%
6 AM 25° Rain 72% 7 mph SSW 86%
7 AM 25° Mostly Cloudy 72% 6 mph SW 85%
8 AM 26° Mostly Cloudy 54% 6 mph SW 84%
9 AM 26° Mostly Cloudy 59% 7 mph SW 80%
10 AM 27° Mostly Cloudy 56% 8 mph WSW 76%
11 AM 27° Mostly Cloudy 54% 8 mph WSW 72%
12 PM 28° Mostly Cloudy 55% 8 mph SW 69%
1 PM 28° Mostly Cloudy 67% 8 mph SW 67%
2 PM 29° Partly Cloudy 65% 9 mph SSW 67%
3 PM 29° Partly Cloudy 73% 10 mph SSW 69%
4 PM 29° Partly Cloudy 73% 11 mph SSW 72%
5 PM 29° Partly Cloudy 74% 12 mph SSW 74%
6 PM 29° Partly Cloudy 77% 12 mph SSW 78%
15-Day Forecast
Today
8/21
Partly Cloudy
52%
25°
31°
Sat
8/22
Mostly Cloudy
77%
25°
31°
Sun
8/23
Mostly Clear
42%
25°
31°
Mon
8/24
Mostly Clear
55%
25°
31°
Tue
8/25
Rain
83%
25°
30°
Wed
8/26
Rain
83%
23°
29°
Thu
8/27
Rain
83%
24°
30°
Fri
8/28
Thunderstorm
66%
25°
30°
Sat
8/29
Thunderstorm
73%
24°
31°
Sun
8/30
Drizzle
54%
24°
31°
Mon
8/31
Drizzle
68%
24°
32°
Tue
9/1
Drizzle
60%
26°
32°
Wed
9/2
Drizzle
60%
26°
29°
Thu
9/3
Drizzle
60%
25°
29°
Fri
9/4
Drizzle
60%
25°
29°
52
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
52 AQI 9.4 µg/m³
O3
Ground-level ozone
44 AQI 49 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sat 52 Moderate 44 52
Sun 45 Good 45 44
Mon 49 Good 49 49
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, 22:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE3548 J/kg
MLCAPE1426 J/kg
MUCAPE3548 J/kg
SBCIN-65 J/kg
MLCIN-87 J/kg
Lifted Index-8.9
Kinematics
0–6 km Shear7 kt
0–1 km Shear3 kt
Eff. Shear4 kt
0–1 km SRH7
0–3 km SRH14
Eff. SRH14
Storm Motion272° @ 9 kt
0–1 km EHI0.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index34.7
Thermo & Levels
PWAT2.02 in
0–3 km LR6.4 °C/km
700–500 LR6.0 °C/km
Total Totals44.6
LCL961 hPa
LFC863 hPa
EL139 hPa
Freezing Lvl14,705 ft