Severe Thunderstorm Watch 9:00 PM

Amherst County, Virginia, United States

Last updated: 8:21 PM CDT  ·  Refresh
24°C
Feels like 27°
Mostly Cloudy
▲ 36°  /  ▼ 19°
Wind
3 mph WSW
Humidity
72%
Dew Point
20°
Pressure
28.79 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
78%
Sunrise
6:00 AM
Sunset
8:41 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Amherst County is currently mostly cloudy at 24°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1518 J/kg) — isolated convective development possible. Sunrise: 6:00AM · Sunset: 8:41PM.

Alerts

Severe Thunderstorm Watch
Expires 9:00 PM
60 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
24°
47%
10 PM
24°
36%
11 PM
23°
39%
12 AM
23°
41%
1 AM
22°
32%
2 AM
21°
20%
3 AM
21°
20%
4 AM
21°
8%
5 AM
19°
6%
6 AM
20°
6%
7 AM
21°
3%
8 AM
22°
3%
9 AM
26°
10%
10 AM
28°
10%
11 AM
30°
27%
12 PM
31°
42%
1 PM
34°
42%
2 PM
34°
45%
3 PM
33°
45%
4 PM
33°
42%
5 PM
31°
42%
6 PM
31°
42%
7 PM
30°
34%
8 PM
29°
32%
7-Day Forecast
Tonight
36° 19°
Mostly Cloudy with a 47% chance of rain.
Sun
36° 19°
Mostly Clear with a 45% chance of rain.
Mon
34° 20°
Mostly Cloudy with a 90% chance of rain.
Tue
30° 19°
Partly Cloudy with a 46% chance of rain.
Wed
30° 17°
Rain, 30% chance.
Thu
31° 19°
Drizzle, 51% chance.
Fri
35° 21°
Rain, 42% chance.
TimeTempConditionsPrecipWindHumidity
Now 24° Mostly Cloudy 47% 3 mph WSW 72%
10 PM 24° Mostly Cloudy 36% 4 mph WSW 78%
11 PM 23° Mostly Cloudy 39% 3 mph WNW 82%
12 AM 23° Mostly Cloudy 41% 3 mph NNE 84%
1 AM 22° Partly Cloudy 32% 2 mph NNW 85%
2 AM 21° Partly Cloudy 20% 1 mph W 86%
3 AM 21° Partly Cloudy 20% 2 mph SW 86%
4 AM 21° Partly Cloudy 8% 2 mph SW 86%
5 AM 19° Partly Cloudy 6% 2 mph SW 86%
6 AM 20° Partly Cloudy 6% 2 mph W 84%
7 AM 21° Partly Cloudy 3% 2 mph W 82%
8 AM 22° Mostly Clear 3% 1 mph W 77%
9 AM 26° Mostly Clear 10% 1 mph SSW 69%
10 AM 28° Mostly Clear 10% 2 mph S 62%
11 AM 30° Mostly Clear 27% 3 mph S 55%
12 PM 31° Clear 42% 4 mph S 51%
1 PM 34° Clear 42% 5 mph S 48%
2 PM 34° Clear 45% 6 mph SSW 47%
3 PM 33° Mostly Clear 45% 5 mph SSW 50%
4 PM 33° Mostly Clear 42% 7 mph SW 53%
5 PM 31° Partly Cloudy 42% 7 mph SW 56%
6 PM 31° Partly Cloudy 42% 6 mph SW 60%
7 PM 30° Partly Cloudy 34% 5 mph SW 63%
8 PM 29° Partly Cloudy 32% 5 mph SSW 66%
15-Day Forecast
Today
7/4
Mostly Cloudy
47%
19°
36°
Sun
7/5
Mostly Clear
45%
19°
36°
Mon
7/6
Mostly Cloudy
90%
20°
34°
Tue
7/7
Partly Cloudy
46%
19°
30°
Wed
7/8
Rain
30%
17°
30°
Thu
7/9
Drizzle
51%
19°
31°
Fri
7/10
Rain
42%
21°
35°
Sat
7/11
Rain
63%
19°
30°
Sun
7/12
Rain
90%
17°
30°
Mon
7/13
Drizzle
44%
16°
31°
Tue
7/14
Drizzle
60%
18°
32°
Wed
7/15
Drizzle
60%
19°
33°
Thu
7/16
Drizzle
60%
19°
33°
Fri
7/17
Drizzle
60%
19°
32°
Sat
7/18
Drizzle
60%
19°
33°
60
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
60 AQI 13.9 µg/m³
O3
Ground-level ozone
40 AQI 43 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 60 Moderate 40 60
Mon 52 Moderate 35 52
Tue 41 Good 29 41
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
SBCAPE250 J/kg
MLCAPE521 J/kg
MUCAPE1101 J/kg
SBCIN-443 J/kg
MLCIN0 J/kg
Lifted Index-2.2
Kinematics
0–6 km Shear25 kt
0–1 km Shear12 kt
Eff. Shear21 kt
0–1 km SRH-51
0–3 km SRH-54
Eff. SRH-26
Storm Motion191° @ 27 kt
0–1 km EHI-0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index33.6
Thermo & Levels
PWAT1.73 in
0–3 km LR5.1 °C/km
700–500 LR6.4 °C/km
Total Totals53.2
LCL911 hPa
LFC668 hPa
EL362 hPa
Freezing Lvl14,094 ft