Severe Thunderstorm Watch 9:00 PM Severe Thunderstorm Watch 9:00 PM

Jefferson County, West Virginia, United States

Last updated: 8:20 PM CDT  ·  Refresh
24°C
Feels like 27°
Mostly Cloudy
▲ 37°  /  ▼ 19°
Wind
4 mph SSW
Humidity
82%
Dew Point
21°
Pressure
29.39 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
75%
Sunrise
5:50 AM
Sunset
8:41 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Jefferson County is currently mostly cloudy at 24°C. Precipitation is likely — peak probability 79% around 9 PM. Atmospheric instability is elevated (CAPE up to 1354 J/kg) — isolated convective development possible. Sunrise: 5:50AM · Sunset: 8:41PM.

Alerts

Severe Thunderstorm Watch
Expires 9:00 PM
Severe Thunderstorm Watch
Expires 9:00 PM
61 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
24°
44%
10 PM
24°
44%
11 PM
23°
29%
12 AM
23°
30%
1 AM
23°
28%
2 AM
22°
10%
3 AM
22°
10%
4 AM
22°
11%
5 AM
19°
11%
6 AM
20°
12%
7 AM
21°
5%
8 AM
22°
21%
9 AM
24°
32%
10 AM
26°
32%
11 AM
27°
45%
12 PM
29°
50%
1 PM
32°
54%
2 PM
33°
57%
3 PM
32°
63%
4 PM
33°
64%
5 PM
30°
69%
6 PM
29°
70%
7 PM
28°
70%
8 PM
27°
71%
7-Day Forecast
Tonight
37° 19°
Mostly Cloudy with a 44% chance of rain.
Sun
34° 19°
Partly Cloudy with a 79% chance of rain.
Mon
30° 19°
Rain, 90% chance.
Tue
29° 18°
Overcast with a 57% chance of rain.
Wed
28° 18°
Clear with a 37% chance of rain.
Thu
33° 19°
Drizzle, 51% chance.
Fri
34° 20°
Rain, 71% chance.
TimeTempConditionsPrecipWindHumidity
Now 24° Mostly Cloudy 44% 4 mph SSW 82%
10 PM 24° Mostly Cloudy 44% 4 mph SSW 86%
11 PM 23° Mostly Cloudy 29% 3 mph NE 88%
12 AM 23° Mostly Cloudy 30% 2 mph NE 89%
1 AM 23° Mostly Cloudy 28% 2 mph SW 89%
2 AM 22° Overcast 10% 3 mph SW 90%
3 AM 22° Overcast 10% 4 mph SW 91%
4 AM 22° Overcast 11% 5 mph WSW 91%
5 AM 19° Overcast 11% 4 mph WNW 91%
6 AM 20° Mostly Cloudy 12% 3 mph WSW 90%
7 AM 21° Partly Cloudy 5% 2 mph SSW 87%
8 AM 22° Partly Cloudy 21% 2 mph SE 83%
9 AM 24° Partly Cloudy 32% 3 mph SE 77%
10 AM 26° Partly Cloudy 32% 3 mph SE 72%
11 AM 27° Mostly Clear 45% 3 mph SE 66%
12 PM 29° Mostly Clear 50% 3 mph ESE 61%
1 PM 32° Clear 54% 4 mph ESE 56%
2 PM 33° Clear 57% 4 mph SE 54%
3 PM 32° Mostly Clear 63% 5 mph SSE 58%
4 PM 33° Partly Cloudy 64% 8 mph S 63%
5 PM 30° Mostly Cloudy 69% 8 mph SSW 68%
6 PM 29° Mostly Cloudy 70% 5 mph SSW 73%
7 PM 28° Heavy Rain 70% 5 mph W 78%
8 PM 27° Heavy Rain 71% 5 mph NNE 83%
15-Day Forecast
Today
7/4
Mostly Cloudy
44%
19°
37°
Sun
7/5
Partly Cloudy
79%
19°
34°
Mon
7/6
Rain
90%
19°
30°
Tue
7/7
Overcast
57%
18°
29°
Wed
7/8
Clear
37%
18°
28°
Thu
7/9
Drizzle
51%
19°
33°
Fri
7/10
Rain
71%
20°
34°
Sat
7/11
Rain
63%
18°
31°
Sun
7/12
Rain
68%
16°
31°
Mon
7/13
Drizzle
44%
15°
31°
Tue
7/14
Drizzle
60%
18°
33°
Wed
7/15
Drizzle
60%
19°
34°
Thu
7/16
Drizzle
60%
18°
34°
Fri
7/17
Drizzle
60%
17°
33°
Sat
7/18
Drizzle
60%
19°
33°
61
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
61 AQI 14.6 µg/m³
O3
Ground-level ozone
44 AQI 48 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 61 Moderate 44 61
Mon 53 Moderate 39 53
Tue 48 Good 40 48
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 Sat Jul 4, 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
SBCAPE383 J/kg
MLCAPE551 J/kg
MUCAPE803 J/kg
SBCIN-314 J/kg
MLCIN0 J/kg
Lifted Index-2.9
Kinematics
0–6 km Shear16 kt
0–1 km Shear16 kt
Eff. Shear8 kt
0–1 km SRH-62
0–3 km SRH-50
Eff. SRH-12
Storm Motion206° @ 27 kt
0–1 km EHI-0.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index38.2
Thermo & Levels
PWAT1.99 in
0–3 km LR5.0 °C/km
700–500 LR6.2 °C/km
Total Totals51.9
LCL952 hPa
LFC708 hPa
EL351 hPa
Freezing Lvl13,930 ft