Heat Advisory — Robeson, NC, Bladen, NC, Columbus, NC, Inland Pender, NC, Coastal Pender, NC, Inland New Hanover, NC, Coastal New Hanover, NC, Inland Brunswick, NC, Coastal Brunswick, NC, Marlboro, SC, Dillon, SC, Marion, SC, Coastal Horry, SC, Central Horry, SC, Northern Horry, SC 6:00 PM Beach Hazards Statement — Coastal Pender, NC, Coastal New Hanover, NC, Coastal Horry, SC, Coastal Georgetown, SC 7:00 PM

Topsail Beach, North Carolina

Last updated: 11:00 AM CDT  ·  Refresh
29°C
Feels like 36°
Partly Cloudy
▲ 34°  /  ▼ 28°
Wind
16 mph SSW
Humidity
77%
Dew Point
26°
Pressure
29.98 inHg
Visibility
9 mi
UV Index
8.9
Cloud Cover
46%
Sunrise
6:13 AM
Sunset
8:20 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Topsail Beach is currently partly cloudy at 30°C. Precipitation is likely — peak probability 60% around 6 AM. Atmospheric instability is elevated (CAPE up to 3339 J/kg) — isolated convective development possible. Sunrise: 6:13AM · Sunset: 8:20PM.

Alerts

Heat Advisory
Robeson, NC, Bladen, NC, Columbus, NC, Inland Pender, NC, Coastal Pender, NC, Inland New Hanover, NC, Coastal New Hanover, NC, Inland Brunswick, NC, Coastal Brunswick, NC, Marlboro, SC, Dillon, SC, Marion, SC, Coastal Horry, SC, Central Horry, SC, Northern Horry, SC
Expires 6:00 PM
Beach Hazards Statement
Coastal Pender, NC, Coastal New Hanover, NC, Coastal Horry, SC, Coastal Georgetown, SC
Expires 7:00 PM
51 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
29°
21%
1 PM
31°
37%
2 PM
32°
35%
3 PM
32°
34%
4 PM
32°
28%
5 PM
31°
23%
6 PM
31°
27%
7 PM
30°
27%
8 PM
30°
14%
9 PM
29°
5%
10 PM
29°
13%
11 PM
29°
22%
12 AM
29°
25%
1 AM
29°
26%
2 AM
28°
26%
3 AM
28°
38%
4 AM
28°
48%
5 AM
28°
56%
6 AM
28°
59%
7 AM
28°
54%
8 AM
28°
51%
9 AM
29°
51%
10 AM
30°
47%
11 AM
31°
38%
7-Day Forecast
Today
34° 28°
Mostly Cloudy with a 34% chance of rain.
Wed
33° 27°
Partly Cloudy with a 59% chance of rain.
Thu
32° 26°
Heavy Rain, 90% chance.
Fri
31° 25°
Partly Cloudy with a 82% chance of rain.
Sat
29° 23°
Rain, 90% chance.
Sun
32° 22°
Rain, 82% chance.
Mon
34° 24°
Rain, 71% chance.
TimeTempConditionsPrecipWindHumidity
Now 29° Partly Cloudy 21% 16 mph SSW 77%
1 PM 31° Overcast 37% 19 mph SSW 76%
2 PM 32° Overcast 35% 21 mph SSW 74%
3 PM 32° Mostly Cloudy 34% 20 mph SSW 74%
4 PM 32° Mostly Cloudy 28% 22 mph SSW 74%
5 PM 31° Mostly Clear 23% 23 mph SSW 75%
6 PM 31° Mostly Cloudy 27% 22 mph SSW 77%
7 PM 30° Mostly Cloudy 27% 21 mph SSW 79%
8 PM 30° Mostly Cloudy 14% 20 mph SSW 81%
9 PM 29° Mostly Cloudy 5% 21 mph SSW 82%
10 PM 29° Mostly Cloudy 13% 20 mph SSW 84%
11 PM 29° Mostly Cloudy 22% 21 mph SSW 85%
12 AM 29° Mostly Cloudy 25% 21 mph SSW 84%
1 AM 29° Overcast 26% 21 mph SSW 82%
2 AM 28° Overcast 26% 21 mph SSW 81%
3 AM 28° Overcast 38% 20 mph SSW 81%
4 AM 28° Overcast 48% 20 mph SSW 81%
5 AM 28° Rain 56% 19 mph SSW 81%
6 AM 28° Overcast 59% 18 mph SSW 82%
7 AM 28° Overcast 54% 18 mph SSW 82%
8 AM 28° Overcast 51% 17 mph SSW 82%
9 AM 29° Overcast 51% 17 mph SSW 80%
10 AM 30° Mostly Cloudy 47% 18 mph SSW 78%
11 AM 31° Mostly Cloudy 38% 17 mph SSW 75%
15-Day Forecast
Today
7/21
Mostly Cloudy
34%
28°
34°
Wed
7/22
Partly Cloudy
59%
27°
33°
Thu
7/23
Heavy Rain
90%
26°
32°
Fri
7/24
Partly Cloudy
82%
25°
31°
Sat
7/25
Rain
90%
23°
29°
Sun
7/26
Rain
82%
22°
32°
Mon
7/27
Rain
71%
24°
34°
Tue
7/28
Rain
90%
25°
36°
Wed
7/29
Thunderstorm
68%
25°
36°
Thu
7/30
Rain
68%
24°
34°
Fri
7/31
Drizzle
60%
24°
33°
Sat
8/1
Drizzle
60%
24°
33°
Sun
8/2
Drizzle
60%
24°
33°
Mon
8/3
Drizzle
60%
24°
32°
Tue
8/4
Drizzle
60%
24°
33°
51
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
51 AQI 9.2 µg/m³
O3
Ground-level ozone
31 AQI 34 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Wed 51 Moderate 31 51
Thu 46 Good 35 46
Fri 46 Good 28 46
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, 14:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE3847 J/kg
MLCAPE2979 J/kg
MUCAPE3847 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-9.2
Kinematics
0–6 km Shear18 kt
0–1 km Shear12 kt
Eff. Shear15 kt
0–1 km SRH-38
0–3 km SRH-33
Eff. SRH-33
Storm Motion212° @ 32 kt
0–1 km EHI-0.9
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index37.7
Thermo & Levels
PWAT2.40 in
0–3 km LR6.7 °C/km
700–500 LR5.9 °C/km
Total Totals49.9
LCL959 hPa
LFC1015 hPa
EL137 hPa
Freezing Lvl15,348 ft