Severe Thunderstorm Watch 11:00 PM

Shenandoah County, Virginia, United States

Last updated: 10:34 PM CDT  ·  Refresh
20°C
Feels like 21°
Overcast
▲ 28°  /  ▼ 18°
Wind
6 mph SW
Humidity
92%
Dew Point
19°
Pressure
28.63 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
86%
Sunrise
6:06 AM
Sunset
8:34 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Shenandoah County is currently overcast at 20°C. Precipitation is likely — peak probability 57% around 12 AM. Atmospheric instability is elevated (CAPE up to 659 J/kg) — isolated convective development possible. Sunrise: 6:06AM · Sunset: 8:34PM.

Alerts

Severe Thunderstorm Watch
Expires 11:00 PM
53 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
20°
24%
12 AM
20°
57%
1 AM
20°
23%
2 AM
20°
21%
3 AM
20°
22%
4 AM
20°
27%
5 AM
18°
21%
6 AM
19°
17%
7 AM
20°
16%
8 AM
21°
8%
9 AM
22°
5%
10 AM
23°
5%
11 AM
24°
5%
12 PM
25°
5%
1 PM
26°
5%
2 PM
27°
5%
3 PM
27°
5%
4 PM
26°
5%
5 PM
27°
3%
6 PM
26°
3%
7 PM
24°
3%
8 PM
24°
3%
9 PM
23°
3%
10 PM
22°
3%
7-Day Forecast
Tonight
28° 18°
Overcast with a 24% chance of rain.
Wed
27° 17°
Mostly Clear with a 21% chance of rain.
Thu
26° 14°
Clear.
Fri
27° 13°
Partly Cloudy with a 39% chance of rain.
Sat
24° 16°
Overcast with a 28% chance of rain.
Sun
32° 16°
Rain, 82% chance.
Mon
33° 18°
Rain, 64% chance.
TimeTempConditionsPrecipWindHumidity
Now 20° Overcast 24% 6 mph SW 92%
12 AM 20° Overcast 57% 7 mph SW 94%
1 AM 20° Mostly Cloudy 23% 6 mph SW 95%
2 AM 20° Partly Cloudy 21% 6 mph SW 95%
3 AM 20° Partly Cloudy 22% 6 mph SW 95%
4 AM 20° Partly Cloudy 27% 6 mph SW 95%
5 AM 18° Partly Cloudy 21% 5 mph SW 94%
6 AM 19° Partly Cloudy 17% 5 mph SW 93%
7 AM 20° Mostly Clear 16% 5 mph SW 91%
8 AM 21° Partly Cloudy 8% 6 mph WSW 84%
9 AM 22° Partly Cloudy 5% 8 mph W 74%
10 AM 23° Partly Cloudy 5% 10 mph W 65%
11 AM 24° Partly Cloudy 5% 10 mph W 58%
12 PM 25° Partly Cloudy 5% 11 mph W 54%
1 PM 26° Partly Cloudy 5% 11 mph W 50%
2 PM 27° Mostly Clear 5% 11 mph W 48%
3 PM 27° Mostly Clear 5% 11 mph WNW 49%
4 PM 26° Mostly Clear 5% 10 mph WNW 50%
5 PM 27° Mostly Clear 3% 10 mph WNW 52%
6 PM 26° Mostly Clear 3% 8 mph WNW 56%
7 PM 24° Partly Cloudy 3% 8 mph NW 60%
8 PM 24° Partly Cloudy 3% 7 mph NW 62%
9 PM 23° Partly Cloudy 3% 7 mph NW 64%
10 PM 22° Partly Cloudy 3% 7 mph NNW 66%
15-Day Forecast
Today
7/21
Overcast
24%
18°
28°
Wed
7/22
Mostly Clear
21%
17°
27°
Thu
7/23
Clear
3%
14°
26°
Fri
7/24
Partly Cloudy
39%
13°
27°
Sat
7/25
Overcast
28%
16°
24°
Sun
7/26
Rain
82%
16°
32°
Mon
7/27
Rain
64%
18°
33°
Tue
7/28
Rain
63%
16°
37°
Wed
7/29
Drizzle
44%
15°
32°
Thu
7/30
Drizzle
44%
14°
30°
Fri
7/31
Drizzle
60%
14°
29°
Sat
8/1
Drizzle
60%
16°
29°
Sun
8/2
Drizzle
60%
16°
30°
Mon
8/3
Drizzle
60%
17°
31°
Tue
8/4
Drizzle
60%
18°
32°
53
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
53 AQI 10.5 µg/m³
O3
Ground-level ozone
31 AQI 35 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 53 Moderate 31 53
Thu 38 Good 38 19
Fri 35 Good 35 23
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 Wed Jul 22, 02:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 80 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE11 J/kg
MLCAPE133 J/kg
MUCAPE226 J/kg
SBCIN-350 J/kg
MLCIN0 J/kg
Lifted Index0.1
Kinematics
0–6 km Shear44 kt
0–1 km Shear34 kt
Eff. Shear27 kt
0–1 km SRH-18
0–3 km SRH16
Eff. SRH5
Storm Motion235° @ 36 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index34.6
Thermo & Levels
PWAT1.71 in
0–3 km LR4.3 °C/km
700–500 LR6.2 °C/km
Total Totals48.1
LCL954 hPa
LFC622 hPa
EL512 hPa
Freezing Lvl13,297 ft