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 — 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

Northumberland County, Virginia, United States

Last updated: 1:12 AM CDT  ·  Refresh
23°C
Feels like 26°
Heavy Rain
▲ 29°  /  ▼ 21°
Wind
7 mph WSW
Humidity
97%
Dew Point
22°
Pressure
29.74 inHg
Visibility
7 mi
UV Index
0.0
Cloud Cover
92%
Sunrise
6:00 AM
Sunset
8:23 PM
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WeatherAI™ Analysis

WeatherAI Analysis: Northumberland County is currently heavy rain at 23°C. Precipitation is likely — peak probability 90% around 2 AM. Atmospheric instability is elevated (CAPE up to 1630 J/kg) — isolated convective development possible. Sunrise: 6:00AM · Sunset: 8:23PM.

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
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
34 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
23°
90%
3 AM
22°
83%
4 AM
23°
69%
5 AM
23°
40%
6 AM
23°
37%
7 AM
24°
35%
8 AM
24°
31%
9 AM
26°
38%
10 AM
27°
33%
11 AM
28°
39%
12 PM
28°
56%
1 PM
29°
52%
2 PM
29°
56%
3 PM
29°
73%
4 PM
28°
69%
5 PM
27°
85%
6 PM
26°
85%
7 PM
26°
90%
8 PM
25°
90%
9 PM
26°
90%
10 PM
25°
82%
11 PM
25°
79%
12 AM
24°
76%
1 AM
24°
75%
7-Day Forecast
Today
29° 21°
Mostly Cloudy with a 90% chance of rain.
Thu
26° 21°
Partly Cloudy with a 75% chance of rain.
Fri
27° 21°
Partly Cloudy with a 51% chance of rain.
Sat
26° 20°
Overcast with a 45% chance of rain.
Sun
29° 20°
Rain, 77% chance.
Mon
32° 21°
Rain, 71% chance.
Tue
33° 21°
Rain, 71% chance.
TimeTempConditionsPrecipWindHumidity
Now 23° Heavy Rain 90% 7 mph WSW 97%
3 AM 22° Thunderstorm 83% 7 mph SW 96%
4 AM 23° Mostly Cloudy 69% 10 mph SW 96%
5 AM 23° Mostly Cloudy 40% 12 mph SW 94%
6 AM 23° Partly Cloudy 37% 12 mph SW 93%
7 AM 24° Partly Cloudy 35% 13 mph SW 92%
8 AM 24° Partly Cloudy 31% 13 mph SW 89%
9 AM 26° Partly Cloudy 38% 13 mph SW 85%
10 AM 27° Mostly Cloudy 33% 13 mph SW 80%
11 AM 28° Mostly Cloudy 39% 13 mph SW 76%
12 PM 28° Mostly Cloudy 56% 12 mph SW 72%
1 PM 29° Mostly Cloudy 52% 11 mph SW 69%
2 PM 29° Mostly Cloudy 56% 10 mph SW 66%
3 PM 29° Mostly Cloudy 73% 9 mph SW 69%
4 PM 28° Partly Cloudy 69% 10 mph SW 72%
5 PM 27° Partly Cloudy 85% 10 mph SSW 76%
6 PM 26° Partly Cloudy 85% 9 mph SW 80%
7 PM 26° Partly Cloudy 90% 8 mph SW 84%
8 PM 25° Mostly Cloudy 90% 8 mph SW 87%
9 PM 26° Mostly Cloudy 90% 6 mph SW 89%
10 PM 25° Heavy Rain 82% 5 mph SW 90%
11 PM 25° Heavy Rain 79% 5 mph SW 91%
12 AM 24° Rain 76% 7 mph W 90%
1 AM 24° Rain 75% 9 mph NNW 89%
15-Day Forecast
Today
7/22
Mostly Cloudy
90%
21°
29°
Thu
7/23
Partly Cloudy
75%
21°
26°
Fri
7/24
Partly Cloudy
51%
21°
27°
Sat
7/25
Overcast
45%
20°
26°
Sun
7/26
Rain
77%
20°
29°
Mon
7/27
Rain
71%
21°
32°
Tue
7/28
Rain
71%
21°
33°
Wed
7/29
Rain
69%
21°
33°
Thu
7/30
Drizzle
44%
20°
29°
Fri
7/31
Drizzle
51%
20°
28°
Sat
8/1
Drizzle
60%
20°
27°
Sun
8/2
Drizzle
60%
20°
28°
Mon
8/3
Drizzle
60%
21°
30°
Tue
8/4
Drizzle
60%
22°
31°
Wed
8/5
Drizzle
60%
22°
30°
34
Good
U.S. Air Quality Index · Dominant: O3
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
24 AQI 4.4 µg/m³
O3
Ground-level ozone
Dominant
34 AQI 37 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 34 Good 34 24
Thu 38 Good 38 29
Fri 33 Good 33 28
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 80 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE349 J/kg
MLCAPE700 J/kg
MUCAPE1042 J/kg
SBCIN-57 J/kg
MLCIN0 J/kg
Lifted Index-1.7
Kinematics
0–6 km Shear45 kt
0–1 km Shear24 kt
Eff. Shear46 kt
0–1 km SRH-83
0–3 km SRH-115
Eff. SRH-115
Storm Motion219° @ 40 kt
0–1 km EHI-0.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index37.3
Thermo & Levels
PWAT2.43 in
0–3 km LR4.8 °C/km
700–500 LR5.2 °C/km
Total Totals47.1
LCL998 hPa
LFC806 hPa
EL242 hPa
Freezing Lvl15,443 ft