Severe Thunderstorm Watch 11:00 PM

Madison County, Virginia, United States

Last updated: 10:31 PM CDT  ·  Refresh
21°C
Feels like 22°
Heavy Rain
▲ 31°  /  ▼ 20°
Wind
9 mph SW
Humidity
96%
Dew Point
21°
Pressure
28.99 inHg
Visibility
7 mi
UV Index
0.0
Cloud Cover
97%
Sunrise
6:06 AM
Sunset
8:32 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Madison County is currently heavy rain at 21°C. Precipitation is likely — peak probability 81% around 11 PM. Atmospheric instability is elevated (CAPE up to 811 J/kg) — isolated convective development possible. Sunrise: 6:06AM · Sunset: 8:32PM.

Alerts

Severe Thunderstorm Watch
Expires 11:00 PM
39 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
21°
81%
12 AM
22°
75%
1 AM
22°
59%
2 AM
22°
23%
3 AM
22°
22%
4 AM
22°
23%
5 AM
20°
19%
6 AM
21°
20%
7 AM
21°
20%
8 AM
23°
21%
9 AM
24°
26%
10 AM
26°
26%
11 AM
26°
27%
12 PM
27°
22%
1 PM
28°
26%
2 PM
28°
27%
3 PM
28°
24%
4 PM
28°
24%
5 PM
29°
24%
6 PM
27°
11%
7 PM
26°
11%
8 PM
25°
5%
9 PM
25°
5%
10 PM
24°
5%
7-Day Forecast
Tonight
31° 20°
Heavy Rain, 81% chance.
Wed
29° 20°
Partly Cloudy with a 27% chance of rain.
Thu
26° 16°
Clear.
Fri
26° 14°
Drizzle, 58% chance.
Sat
23° 17°
Partly Cloudy with a 67% chance of rain.
Sun
30° 17°
Rain, 70% chance.
Mon
32° 18°
Rain, 63% chance.
TimeTempConditionsPrecipWindHumidity
Now 21° Heavy Rain 81% 9 mph SW 96%
12 AM 22° Heavy Rain 75% 8 mph SW 96%
1 AM 22° Rain 59% 7 mph SW 96%
2 AM 22° Partly Cloudy 23% 7 mph SW 95%
3 AM 22° Partly Cloudy 22% 7 mph SW 94%
4 AM 22° Mostly Clear 23% 7 mph SW 92%
5 AM 20° Mostly Clear 19% 7 mph SW 91%
6 AM 21° Partly Cloudy 20% 6 mph SW 89%
7 AM 21° Mostly Cloudy 20% 6 mph SW 87%
8 AM 23° Mostly Cloudy 21% 6 mph WSW 80%
9 AM 24° Mostly Cloudy 26% 6 mph WSW 70%
10 AM 26° Mostly Cloudy 26% 7 mph W 61%
11 AM 26° Partly Cloudy 27% 7 mph W 56%
12 PM 27° Partly Cloudy 22% 7 mph WSW 53%
1 PM 28° Partly Cloudy 26% 7 mph WSW 51%
2 PM 28° Partly Cloudy 27% 7 mph W 50%
3 PM 28° Mostly Clear 24% 6 mph W 50%
4 PM 28° Mostly Clear 24% 6 mph W 50%
5 PM 29° Mostly Clear 24% 5 mph WNW 53%
6 PM 27° Partly Cloudy 11% 4 mph WNW 57%
7 PM 26° Partly Cloudy 11% 4 mph NW 62%
8 PM 25° Partly Cloudy 5% 5 mph NNW 63%
9 PM 25° Partly Cloudy 5% 5 mph NNW 63%
10 PM 24° Partly Cloudy 5% 6 mph NNW 62%
15-Day Forecast
Today
7/21
Heavy Rain
81%
20°
31°
Wed
7/22
Partly Cloudy
27%
20°
29°
Thu
7/23
Clear
3%
16°
26°
Fri
7/24
Drizzle
58%
14°
26°
Sat
7/25
Partly Cloudy
67%
17°
23°
Sun
7/26
Rain
70%
17°
30°
Mon
7/27
Rain
63%
18°
32°
Tue
7/28
Rain
63%
18°
36°
Wed
7/29
Drizzle
44%
17°
32°
Thu
7/30
Drizzle
44%
16°
29°
Fri
7/31
Drizzle
63%
16°
29°
Sat
8/1
Drizzle
60%
17°
29°
Sun
8/2
Drizzle
60%
17°
29°
Mon
8/3
Drizzle
60%
18°
31°
Tue
8/4
Drizzle
60%
19°
32°
39
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
39 AQI 7.0 µg/m³
O3
Ground-level ozone
36 AQI 40 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 39 Good 36 39
Thu 41 Good 41 17
Fri 33 Good 33 16
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
SBCAPE118 J/kg
MLCAPE394 J/kg
MUCAPE590 J/kg
SBCIN-223 J/kg
MLCIN0 J/kg
Lifted Index-0.8
Kinematics
0–6 km Shear39 kt
0–1 km Shear26 kt
Eff. Shear38 kt
0–1 km SRH-29
0–3 km SRH-50
Eff. SRH-50
Storm Motion232° @ 38 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index35.1
Thermo & Levels
PWAT2.04 in
0–3 km LR4.5 °C/km
700–500 LR5.7 °C/km
Total Totals46.1
LCL972 hPa
LFC685 hPa
EL456 hPa
Freezing Lvl13,796 ft