Severe Thunderstorm Watch 8:00 PM Severe Thunderstorm Watch 8:00 PM Areal Flood Advisory — Chesterfield County, SC 7:15 PM

Chesterfield County, South Carolina, United States

Last updated: 6:33 PM CDT  ·  Refresh
23°C
Feels like 26°
Rain
▲ 33°  /  ▼ 19°
Wind
7 mph NE
Humidity
91%
Dew Point
23°
Pressure
29.67 inHg
Visibility
3 mi
UV Index
0.6
Cloud Cover
97%
Sunrise
6:45 AM
Sunset
8:01 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Chesterfield County is currently rain at 23°C. Precipitation is likely — peak probability 83% around 8 PM. Atmospheric instability is elevated (CAPE up to 1454 J/kg) — isolated convective development possible. Sunrise: 6:45AM · Sunset: 8:01PM.

Alerts

Severe Thunderstorm Watch
Expires 8:00 PM
Severe Thunderstorm Watch
Expires 8:00 PM
Areal Flood Advisory
Chesterfield County, SC
Expires 7:15 PM
46 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
23°
67%
8 PM
25°
83%
9 PM
23°
81%
10 PM
23°
80%
11 PM
23°
56%
12 AM
22°
56%
1 AM
22°
46%
2 AM
22°
35%
3 AM
22°
39%
4 AM
22°
44%
5 AM
19°
44%
6 AM
19°
44%
7 AM
19°
46%
8 AM
20°
44%
9 AM
23°
44%
10 AM
24°
47%
11 AM
25°
47%
12 PM
26°
48%
1 PM
29°
39%
2 PM
30°
43%
3 PM
30°
44%
4 PM
30°
40%
5 PM
29°
30%
6 PM
29°
30%
7-Day Forecast
Tonight
33° 19°
Rain, 80% chance.
Sat
32° 19°
Mostly Cloudy with a 47% chance of rain.
Sun
33° 21°
Mostly Clear.
Mon
32° 19°
Mostly Clear with a 53% chance of rain.
Tue
32° 18°
Mostly Clear with a 45% chance of rain.
Wed
32° 20°
Rain, 69% chance.
Thu
31° 19°
Rain, 90% chance.
TimeTempConditionsPrecipWindHumidity
Now 23° Rain 67% 7 mph NE 91%
8 PM 25° Rain 83% 7 mph ENE 92%
9 PM 23° Heavy Rain 81% 5 mph E 92%
10 PM 23° Overcast 80% 5 mph ESE 93%
11 PM 23° Overcast 56% 4 mph SE 93%
12 AM 22° Overcast 56% 4 mph SE 94%
1 AM 22° Overcast 46% 3 mph S 94%
2 AM 22° Overcast 35% 3 mph S 94%
3 AM 22° Overcast 39% 3 mph S 94%
4 AM 22° Overcast 44% 3 mph S 95%
5 AM 19° Overcast 44% 3 mph SSW 95%
6 AM 19° Overcast 44% 2 mph SE 94%
7 AM 19° Rain 46% 3 mph E 94%
8 AM 20° Rain 44% 2 mph ENE 92%
9 AM 23° Mostly Cloudy 44% 2 mph WNW 87%
10 AM 24° Overcast 47% 2 mph W 81%
11 AM 25° Overcast 47% 3 mph W 76%
12 PM 26° Overcast 48% 3 mph W 71%
1 PM 29° Mostly Cloudy 39% 4 mph W 67%
2 PM 30° Mostly Cloudy 43% 4 mph W 64%
3 PM 30° Mostly Cloudy 44% 4 mph W 62%
4 PM 30° Partly Cloudy 40% 4 mph W 60%
5 PM 29° Partly Cloudy 30% 4 mph W 61%
6 PM 29° Mostly Clear 30% 3 mph WSW 64%
15-Day Forecast
Today
8/21
Rain
80%
19°
33°
Sat
8/22
Mostly Cloudy
47%
19°
32°
Sun
8/23
Mostly Clear
15%
21°
33°
Mon
8/24
Mostly Clear
53%
19°
32°
Tue
8/25
Mostly Clear
45%
18°
32°
Wed
8/26
Rain
69%
20°
32°
Thu
8/27
Rain
90%
19°
31°
Fri
8/28
Rain
73%
22°
33°
Sat
8/29
Rain
73%
21°
33°
Sun
8/30
Drizzle
54%
19°
33°
Mon
8/31
Drizzle
64%
20°
38°
Tue
9/1
Drizzle
60%
23°
36°
Wed
9/2
Drizzle
60%
23°
33°
Thu
9/3
Drizzle
60%
22°
33°
Fri
9/4
Rain
90%
21°
32°
46
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
42 AQI 7.5 µg/m³
O3
Ground-level ozone
Dominant
46 AQI 50 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sat 46 Good 46 42
Sun 42 Good 42 31
Mon 42 Good 41 42
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
SBCAPE542 J/kg
MLCAPE604 J/kg
MUCAPE1274 J/kg
SBCIN-68 J/kg
MLCIN-54 J/kg
Lifted Index-3.4
Kinematics
0–6 km Shear20 kt
0–1 km Shear13 kt
Eff. Shear20 kt
0–1 km SRH59
0–3 km SRH74
Eff. SRH74
Storm Motion271° @ 20 kt
0–1 km EHI0.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell1.0
K-Index36.5
Thermo & Levels
PWAT2.33 in
0–3 km LR4.7 °C/km
700–500 LR5.9 °C/km
Total Totals46.9
LCL993 hPa
LFC749 hPa
EL312 hPa
Freezing Lvl14,065 ft