Severe Thunderstorm Watch 11:00 PM

Halifax County, Virginia, United States

Last updated: 10:32 PM CDT  ·  Refresh
28°C
Feels like 30°
Overcast
▲ 33°  /  ▼ 22°
Wind
7 mph SW
Humidity
68%
Dew Point
22°
Pressure
29.33 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
95%
Sunrise
6:13 AM
Sunset
8:30 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Halifax County is currently overcast at 28°C. Precipitation is likely — peak probability 90% around 12 AM. Atmospheric instability is elevated (CAPE up to 1296 J/kg) — isolated convective development possible. Sunrise: 6:13AM · Sunset: 8:30PM.

Alerts

Severe Thunderstorm Watch
Expires 11:00 PM
46 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
28°
74%
12 AM
27°
90%
1 AM
27°
71%
2 AM
26°
72%
3 AM
25°
90%
4 AM
24°
90%
5 AM
22°
90%
6 AM
22°
85%
7 AM
22°
85%
8 AM
22°
76%
9 AM
22°
76%
10 AM
23°
77%
11 AM
23°
85%
12 PM
24°
85%
1 PM
27°
90%
2 PM
27°
90%
3 PM
27°
86%
4 PM
27°
86%
5 PM
27°
86%
6 PM
27°
77%
7 PM
26°
77%
8 PM
26°
77%
9 PM
23°
77%
10 PM
23°
78%
7-Day Forecast
Tonight
33° 22°
Overcast with a 74% chance of rain.
Wed
29° 22°
Mostly Cloudy with a 90% chance of rain.
Thu
27° 18°
Mostly Cloudy with a 56% chance of rain.
Fri
28° 16°
Mostly Cloudy with a 73% chance of rain.
Sat
25° 18°
Rain, 74% chance.
Sun
34° 17°
Rain, 70% chance.
Mon
37° 21°
Rain, 64% chance.
TimeTempConditionsPrecipWindHumidity
Now 28° Overcast 74% 7 mph SW 68%
12 AM 27° Overcast 90% 10 mph SW 73%
1 AM 27° Overcast 71% 10 mph SW 78%
2 AM 26° Overcast 72% 9 mph SW 83%
3 AM 25° Overcast 90% 9 mph SW 87%
4 AM 24° Overcast 90% 9 mph SW 90%
5 AM 22° Overcast 90% 8 mph SW 91%
6 AM 22° Overcast 85% 7 mph SW 91%
7 AM 22° Overcast 85% 8 mph SW 92%
8 AM 22° Overcast 76% 8 mph SW 92%
9 AM 22° Overcast 76% 8 mph SW 90%
10 AM 23° Heavy Rain 77% 9 mph SW 89%
11 AM 23° Heavy Rain 85% 9 mph SW 85%
12 PM 24° Mostly Cloudy 85% 9 mph SW 81%
1 PM 27° Mostly Cloudy 90% 9 mph SW 76%
2 PM 27° Mostly Cloudy 90% 9 mph SW 75%
3 PM 27° Mostly Cloudy 86% 8 mph SW 76%
4 PM 27° Heavy Rain 86% 8 mph SW 76%
5 PM 27° Heavy Rain 86% 8 mph SW 78%
6 PM 27° Heavy Rain 77% 7 mph SW 82%
7 PM 26° Heavy Rain 77% 7 mph SSW 86%
8 PM 26° Rain 77% 6 mph SSW 88%
9 PM 23° Mostly Cloudy 77% 6 mph SSW 90%
10 PM 23° Overcast 78% 6 mph SSW 92%
15-Day Forecast
Today
7/21
Overcast
74%
22°
33°
Wed
7/22
Mostly Cloudy
90%
22°
29°
Thu
7/23
Mostly Cloudy
56%
18°
27°
Fri
7/24
Mostly Cloudy
73%
16°
28°
Sat
7/25
Rain
74%
18°
25°
Sun
7/26
Rain
70%
17°
34°
Mon
7/27
Rain
64%
21°
37°
Tue
7/28
Rain
63%
21°
38°
Wed
7/29
Rain
68%
19°
34°
Thu
7/30
Drizzle
44%
18°
32°
Fri
7/31
Drizzle
60%
18°
32°
Sat
8/1
Drizzle
60%
19°
31°
Sun
8/2
Drizzle
60%
19°
32°
Mon
8/3
Drizzle
60%
19°
33°
Tue
8/4
Drizzle
60%
21°
34°
46
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
46 AQI 8.4 µg/m³
O3
Ground-level ozone
39 AQI 43 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 46 Good 39 46
Thu 43 Good 29 43
Fri 35 Good 19 35
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 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1074 J/kg
MLCAPE1062 J/kg
MUCAPE1267 J/kg
SBCIN-80 J/kg
MLCIN0 J/kg
Lifted Index-2.9
Kinematics
0–6 km Shear38 kt
0–1 km Shear28 kt
Eff. Shear41 kt
0–1 km SRH-43
0–3 km SRH-39
Eff. SRH-39
Storm Motion226° @ 41 kt
0–1 km EHI-0.3
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index38.6
Thermo & Levels
PWAT2.41 in
0–3 km LR6.1 °C/km
700–500 LR5.3 °C/km
Total Totals46.8
LCL914 hPa
LFC820 hPa
EL164 hPa
Freezing Lvl15,348 ft