Flood Advisory — Clarendon County, SC, Lee County, SC, Orangeburg County, SC, Sumter County, SC 9:00 PM

Lee County, South Carolina, United States

Last updated: 8:25 PM CDT  ·  Refresh
23°C
Feels like 24°
Overcast
▲ 33°  /  ▼ 20°
Wind
8 mph SE
Humidity
94%
Dew Point
22°
Pressure
29.77 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
92%
Sunrise
6:46 AM
Sunset
8:00 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Lee County is currently overcast at 23°C. Precipitation is likely — peak probability 80% around 9 PM. Atmospheric instability is elevated (CAPE up to 1760 J/kg) — isolated convective development possible. Sunrise: 6:46AM · Sunset: 8:00PM.

49 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
23°
80%
10 PM
22°
52%
11 PM
22°
29%
12 AM
22°
39%
1 AM
22°
35%
2 AM
22°
30%
3 AM
22°
39%
4 AM
22°
34%
5 AM
20°
20%
6 AM
20°
27%
7 AM
20°
27%
8 AM
21°
36%
9 AM
23°
36%
10 AM
24°
33%
11 AM
25°
33%
12 PM
26°
36%
1 PM
28°
45%
2 PM
29°
50%
3 PM
29°
49%
4 PM
30°
49%
5 PM
29°
49%
6 PM
28°
49%
7 PM
28°
38%
8 PM
27°
30%
7-Day Forecast
Tonight
33° 20°
Overcast with a 80% chance of rain.
Sat
32° 20°
Mostly Cloudy with a 49% chance of rain.
Sun
34° 21°
Mostly Clear with a 21% chance of rain.
Mon
32° 19°
Partly Cloudy with a 52% chance of rain.
Tue
31° 20°
Drizzle, 51% chance.
Wed
33° 21°
Heavy Rain, 82% chance.
Thu
32° 19°
Heavy Rain, 90% chance.
TimeTempConditionsPrecipWindHumidity
Now 23° Overcast 80% 8 mph SE 94%
10 PM 22° Overcast 52% 7 mph ESE 93%
11 PM 22° Overcast 29% 4 mph NNE 94%
12 AM 22° Overcast 39% 4 mph N 94%
1 AM 22° Mostly Cloudy 35% 2 mph NNW 94%
2 AM 22° Mostly Cloudy 30% 2 mph WNW 94%
3 AM 22° Mostly Cloudy 39% 2 mph NNW 95%
4 AM 22° Mostly Cloudy 34% 3 mph NE 96%
5 AM 20° Mostly Cloudy 20% 3 mph ENE 96%
6 AM 20° Mostly Cloudy 27% 2 mph NE 95%
7 AM 20° Mostly Cloudy 27% 2 mph NE 94%
8 AM 21° Partly Cloudy 36% 2 mph N 92%
9 AM 23° Partly Cloudy 36% 2 mph WSW 87%
10 AM 24° Mostly Cloudy 33% 3 mph WSW 82%
11 AM 25° Mostly Cloudy 33% 4 mph WSW 77%
12 PM 26° Mostly Cloudy 36% 3 mph W 73%
1 PM 28° Mostly Cloudy 45% 4 mph W 69%
2 PM 29° Mostly Cloudy 50% 4 mph W 67%
3 PM 29° Mostly Cloudy 49% 5 mph WSW 65%
4 PM 30° Partly Cloudy 49% 5 mph WSW 63%
5 PM 29° Partly Cloudy 49% 5 mph SW 64%
6 PM 28° Partly Cloudy 49% 4 mph SW 66%
7 PM 28° Partly Cloudy 38% 4 mph SSW 69%
8 PM 27° Partly Cloudy 30% 4 mph SSW 73%
15-Day Forecast
Today
8/21
Overcast
80%
20°
33°
Sat
8/22
Mostly Cloudy
49%
20°
32°
Sun
8/23
Mostly Clear
21%
21°
34°
Mon
8/24
Partly Cloudy
52%
19°
32°
Tue
8/25
Drizzle
51%
20°
31°
Wed
8/26
Heavy Rain
82%
21°
33°
Thu
8/27
Heavy Rain
90%
19°
32°
Fri
8/28
Drizzle
71%
23°
33°
Sat
8/29
Rain
68%
22°
34°
Sun
8/30
Rain
68%
20°
33°
Mon
8/31
Drizzle
60%
21°
37°
Tue
9/1
Drizzle
60%
23°
36°
Wed
9/2
Drizzle
60%
23°
33°
Thu
9/3
Drizzle
60%
22°
33°
Fri
9/4
Drizzle
60%
22°
33°
49
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
49 AQI 8.8 µg/m³
O3
Ground-level ozone
44 AQI 48 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 49 Good 44 49
Sun 37 Good 37 33
Mon 39 Good 36 39
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, 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
SBCAPE171 J/kg
MLCAPE610 J/kg
MUCAPE1271 J/kg
SBCIN-206 J/kg
MLCIN-100 J/kg
Lifted Index-1.1
Kinematics
0–6 km Shear21 kt
0–1 km Shear7 kt
Eff. Shear22 kt
0–1 km SRH50
0–3 km SRH87
Eff. SRH87
Storm Motion296° @ 15 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell1.2
K-Index31.4
Thermo & Levels
PWAT2.10 in
0–3 km LR4.6 °C/km
700–500 LR5.5 °C/km
Total Totals41.8
LCL995 hPa
LFC716 hPa
EL415 hPa
Freezing Lvl14,711 ft