Severe Thunderstorm Watch 8:00 p. m. Severe Thunderstorm Watch 8:00 p. m.

York County, South Carolina, United States

Last updated: 6:32 p. m. CDT  ·  Refresh
24°C
Feels like 27°
Mostly Cloudy
▲ 31°  /  ▼ 19°
Wind
6 mph ESE
Humidity
88%
Dew Point
22°
Pressure
29,28 inHg
Visibility
10 mi
UV Index
1,3
Cloud Cover
75%
Sunrise
6:49 a. m.
Sunset
8:05 p. m.
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WeatherAI™ Analysis

WeatherAI Analysis: York County is currently mostly cloudy at 24°C. Precipitation is likely — peak probability 74% around 10 p. m.. Atmospheric instability is elevated (CAPE up to 1251 J/kg) — isolated convective development possible. Sunrise: 6:49A. M. · Sunset: 8:05P. M..

Alerts

Severe Thunderstorm Watch
Expires 8:00 p. m.
Severe Thunderstorm Watch
Expires 8:00 p. m.
47 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
24°
70%
8 p. m.
24°
72%
9 p. m.
23°
73%
10 p. m.
22°
73%
11 p. m.
22°
67%
12 a. m.
21°
55%
1 a. m.
21°
50%
2 a. m.
21°
38%
3 a. m.
21°
38%
4 a. m.
21°
34%
5 a. m.
19°
23%
6 a. m.
19°
19%
7 a. m.
19°
31%
8 a. m.
20°
14%
9 a. m.
21°
12%
10 a. m.
22°
17%
11 a. m.
23°
14%
12 p. m.
24°
15%
1 p. m.
27°
15%
2 p. m.
28°
16%
3 p. m.
28°
27%
4 p. m.
28°
27%
5 p. m.
28°
32%
6 p. m.
28°
36%
7-Day Forecast
Tonight
31° 19°
Mostly Cloudy with a 73% chance of rain.
Sat
30° 19°
Partly Cloudy with a 50% chance of rain.
Sun
30° 19°
Mostly Clear.
Mon
30° 18°
Clear with a 53% chance of rain.
Tue
30° 17°
Mostly Clear with a 37% chance of rain.
Wed
30° 19°
Heavy Rain, 80% chance.
Thu
28° 19°
Rain, 80% chance.
TimeTempConditionsPrecipWindHumidity
Now 24° Mostly Cloudy 70% 6 mph ESE 88%
8 p. m. 24° Mostly Cloudy 72% 7 mph ESE 93%
9 p. m. 23° Overcast 73% 5 mph ESE 96%
10 p. m. 22° Overcast 73% 4 mph E 97%
11 p. m. 22° Overcast 67% 3 mph E 98%
12 a. m. 21° Overcast 55% 2 mph ESE 98%
1 a. m. 21° Overcast 50% 3 mph S 98%
2 a. m. 21° Overcast 38% 3 mph SW 98%
3 a. m. 21° Overcast 38% 2 mph SSW 98%
4 a. m. 21° Mostly Cloudy 34% 2 mph S 97%
5 a. m. 19° Mostly Cloudy 23% 2 mph ENE 97%
6 a. m. 19° Mostly Cloudy 19% 2 mph ENE 97%
7 a. m. 19° Overcast 31% 2 mph ENE 96%
8 a. m. 20° Overcast 14% 2 mph ENE 94%
9 a. m. 21° Mostly Cloudy 12% 2 mph NNE 90%
10 a. m. 22° Mostly Cloudy 17% 1 mph NNW 86%
11 a. m. 23° Mostly Cloudy 14% 1 mph NW 80%
12 p. m. 24° Mostly Cloudy 15% 1 mph WNW 72%
1 p. m. 27° Partly Cloudy 15% 2 mph W 66%
2 p. m. 28° Partly Cloudy 16% 2 mph W 61%
3 p. m. 28° Partly Cloudy 27% 2 mph WSW 59%
4 p. m. 28° Mostly Clear 27% 2 mph WSW 57%
5 p. m. 28° Mostly Clear 32% 3 mph SW 58%
6 p. m. 28° Clear 36% 3 mph WSW 62%
15-Day Forecast
Today
8/21
Mostly Cloudy
73%
19°
31°
Sat
8/22
Partly Cloudy
50%
19°
30°
Sun
8/23
Mostly Clear
15%
19°
30°
Mon
8/24
Clear
53%
18°
30°
Tue
8/25
Mostly Clear
37%
17°
30°
Wed
8/26
Heavy Rain
80%
19°
30°
Thu
8/27
Rain
80%
19°
28°
Fri
8/28
Rain
63%
21°
31°
Sat
8/29
Rain
73%
19°
32°
Sun
8/30
Rain
72%
19°
32°
Mon
8/31
Drizzle
56%
19°
37°
Tue
9/1
Drizzle
60%
22°
36°
Wed
9/2
Drizzle
60%
22°
32°
Thu
9/3
Drizzle
60%
21°
31°
Fri
9/4
Rain
90%
21°
31°
47
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
27 AQI 4.9 µg/m³
O3
Ground-level ozone
Dominant
47 AQI 51 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sat 47 Good 47 27
Sun 43 Good 43 22
Mon 30 Good 30 27
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 vie. ago. 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
SBCAPE566 J/kg
MLCAPE1092 J/kg
MUCAPE2399 J/kg
SBCIN-122 J/kg
MLCIN-61 J/kg
Lifted Index-2.9
Kinematics
0–6 km Shear20 kt
0–1 km Shear5 kt
Eff. Shear21 kt
0–1 km SRH28
0–3 km SRH151
Eff. SRH151
Storm Motion287° @ 19 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell3.9
K-Index33.7
Thermo & Levels
PWAT1.88 in
0–3 km LR5.3 °C/km
700–500 LR5.5 °C/km
Total Totals48.6
LCL964 hPa
LFC767 hPa
EL246 hPa
Freezing Lvl14,265 ft