Areal Flood Advisory — Essex County, VA, King and Queen County, VA, King William County, VA, Northumberland County, VA, Richmond County, VA, Westmoreland County, VA 1:45 AM Flash Flood Warning — Essex County, VA, King and Queen County, VA, King William County, VA, Lancaster County, VA, Northumberland County, VA, Richmond County, VA 2:15 AM Areal Flood Advisory — Goochland County, VA, Hanover County, VA, Henrico County, VA, King William County, VA, Powhatan County, VA 3:15 AM Areal Flood Advisory — Chesterfield County, VA, Essex County, VA, Gloucester County, VA, Hanover County, VA, Henrico County, VA, King and Queen County, VA, King William County, VA, Lancaster County, VA, Middlesex County, VA, New Kent County, VA, Northumberland County, VA, City of Richmond County, VA 3:45 AM Areal Flood Watch 11:00 PM

King William County, Virginia, United States

Last updated: 1:11 AM CDT  ·  Refresh
23°C
Feels like 27°
Overcast
▲ 29°  /  ▼ 19°
Wind
3 mph SW
Humidity
97%
Dew Point
23°
Pressure
29.66 inHg
Visibility
9 mi
UV Index
0.0
Cloud Cover
90%
Sunrise
6:03 AM
Sunset
8:25 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: King William County is currently overcast at 23°C. Precipitation is likely — peak probability 90% around 3 AM. Atmospheric instability is elevated (CAPE up to 1599 J/kg) — isolated convective development possible. Sunrise: 6:03AM · Sunset: 8:25PM.

Alerts

Areal Flood Advisory
Essex County, VA, King and Queen County, VA, King William County, VA, Northumberland County, VA, Richmond County, VA, Westmoreland County, VA
Expires 1:45 AM
Flash Flood Warning
Essex County, VA, King and Queen County, VA, King William County, VA, Lancaster County, VA, Northumberland County, VA, Richmond County, VA
Expires 2:15 AM
Areal Flood Advisory
Goochland County, VA, Hanover County, VA, Henrico County, VA, King William County, VA, Powhatan County, VA
Expires 3:15 AM
Areal Flood Advisory
Chesterfield County, VA, Essex County, VA, Gloucester County, VA, Hanover County, VA, Henrico County, VA, King and Queen County, VA, King William County, VA, Lancaster County, VA, Middlesex County, VA, New Kent County, VA, Northumberland County, VA, City of Richmond County, VA
Expires 3:45 AM
Areal Flood Watch
Expires 11:00 PM
45 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
23°
82%
3 AM
23°
90%
4 AM
23°
84%
5 AM
22°
49%
6 AM
22°
55%
7 AM
22°
56%
8 AM
23°
64%
9 AM
25°
69%
10 AM
26°
64%
11 AM
27°
69%
12 PM
28°
56%
1 PM
27°
77%
2 PM
28°
82%
3 PM
28°
82%
4 PM
27°
77%
5 PM
27°
85%
6 PM
26°
85%
7 PM
25°
90%
8 PM
24°
90%
9 PM
24°
86%
10 PM
23°
86%
11 PM
23°
76%
12 AM
23°
68%
1 AM
23°
66%
7-Day Forecast
Today
29° 19°
Partly Cloudy with a 90% chance of rain.
Thu
27° 18°
Partly Cloudy with a 63% chance of rain.
Fri
28° 16°
Mostly Cloudy with a 51% chance of rain.
Sat
26° 19°
Drizzle, 45% chance.
Sun
31° 20°
Rain, 90% chance.
Mon
33° 19°
Rain, 62% chance.
Tue
34° 21°
Rain, 71% chance.
TimeTempConditionsPrecipWindHumidity
Now 23° Overcast 82% 3 mph SW 97%
3 AM 23° Rain 90% 5 mph SW 96%
4 AM 23° Partly Cloudy 84% 7 mph SSW 94%
5 AM 22° Partly Cloudy 49% 8 mph SSW 93%
6 AM 22° Mostly Cloudy 55% 9 mph SSW 92%
7 AM 22° Partly Cloudy 56% 10 mph SSW 90%
8 AM 23° Rain 64% 10 mph SW 88%
9 AM 25° Partly Cloudy 69% 10 mph SW 83%
10 AM 26° Mostly Cloudy 64% 11 mph SW 78%
11 AM 27° Mostly Cloudy 69% 10 mph SW 73%
12 PM 28° Mostly Cloudy 56% 10 mph SW 69%
1 PM 27° Mostly Cloudy 77% 10 mph SW 66%
2 PM 28° Heavy Rain 82% 10 mph SW 64%
3 PM 28° Partly Cloudy 82% 10 mph SW 67%
4 PM 27° Partly Cloudy 77% 10 mph SSW 69%
5 PM 27° Partly Cloudy 85% 10 mph SSW 72%
6 PM 26° Partly Cloudy 85% 8 mph SSW 78%
7 PM 25° Partly Cloudy 90% 6 mph SW 83%
8 PM 24° Partly Cloudy 90% 5 mph SW 88%
9 PM 24° Mostly Cloudy 86% 4 mph SW 91%
10 PM 23° Heavy Rain 86% 4 mph SW 94%
11 PM 23° Rain 76% 4 mph SW 97%
12 AM 23° Rain 68% 4 mph WSW 97%
1 AM 23° Rain 66% 4 mph NW 97%
15-Day Forecast
Today
7/22
Partly Cloudy
90%
19°
29°
Thu
7/23
Partly Cloudy
63%
18°
27°
Fri
7/24
Mostly Cloudy
51%
16°
28°
Sat
7/25
Drizzle
45%
19°
26°
Sun
7/26
Rain
90%
20°
31°
Mon
7/27
Rain
62%
19°
33°
Tue
7/28
Rain
71%
21°
34°
Wed
7/29
Rain
69%
20°
33°
Thu
7/30
Drizzle
44%
19°
29°
Fri
7/31
Drizzle
51%
19°
29°
Sat
8/1
Drizzle
60%
19°
29°
Sun
8/2
Drizzle
90%
19°
29°
Mon
8/3
Drizzle
60%
20°
31°
Tue
8/4
Rain
90%
21°
32°
Wed
8/5
Drizzle
60%
22°
32°
45
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
45 AQI 8.1 µg/m³
O3
Ground-level ozone
35 AQI 39 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 45 Good 35 45
Thu 51 Moderate 39 51
Fri 28 Good 28 17
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, 04:00'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
SBCAPE407 J/kg
MLCAPE755 J/kg
MUCAPE999 J/kg
SBCIN-56 J/kg
MLCIN0 J/kg
Lifted Index-1.7
Kinematics
0–6 km Shear46 kt
0–1 km Shear29 kt
Eff. Shear47 kt
0–1 km SRH-96
0–3 km SRH-111
Eff. SRH-111
Storm Motion223° @ 39 kt
0–1 km EHI-0.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index36.2
Thermo & Levels
PWAT2.43 in
0–3 km LR4.6 °C/km
700–500 LR5.4 °C/km
Total Totals47.1
LCL997 hPa
LFC810 hPa
EL227 hPa
Freezing Lvl15,577 ft