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: 2:28 AM CDT  ·  Refresh
23°C
Feels like 26°
Fog
▲ 30°  /  ▼ 21°
Wind
10 mph SW
Humidity
96%
Dew Point
22°
Pressure
29.73 inHg
Visibility
0 mi
UV Index
0.0
Cloud Cover
90%
Sunrise
6:00 AM
Sunset
8:23 PM
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WeatherAI™ Analysis

WeatherAI Analysis: Northumberland County is currently fog at 23°C. Precipitation is likely — peak probability 90% around 3 AM. Atmospheric instability is elevated (CAPE up to 1682 J/kg) — isolated convective development possible. Sunrise: 6:00AM · Sunset: 8:23PM.

Alerts

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%
4 AM
23°
51%
5 AM
23°
39%
6 AM
23°
32%
7 AM
24°
35%
8 AM
25°
36%
9 AM
26°
34%
10 AM
27°
56%
11 AM
28°
50%
12 PM
29°
50%
1 PM
29°
51%
2 PM
29°
69%
3 PM
28°
69%
4 PM
28°
80%
5 PM
27°
76%
6 PM
26°
81%
7 PM
25°
90%
8 PM
24°
90%
9 PM
25°
90%
10 PM
24°
78%
11 PM
24°
76%
12 AM
24°
67%
1 AM
24°
67%
2 AM
23°
67%
7-Day Forecast
Today
30° 21°
Mostly Cloudy with a 90% chance of rain.
Thu
27° 21°
Partly Cloudy with a 65% chance of rain.
Fri
27° 20°
Mostly Clear.
Sat
25° 19°
Overcast with a 44% chance of rain.
Sun
28° 19°
Drizzle, 70% chance.
Mon
31° 21°
Rain, 70% chance.
Tue
33° 21°
Rain, 63% chance.
TimeTempConditionsPrecipWindHumidity
Now 23° Fog 90% 10 mph SW 96%
4 AM 23° Overcast 51% 10 mph SSW 95%
5 AM 23° Mostly Cloudy 39% 11 mph SSW 93%
6 AM 23° Mostly Cloudy 32% 12 mph SW 92%
7 AM 24° Partly Cloudy 35% 12 mph SW 90%
8 AM 25° Partly Cloudy 36% 13 mph SW 87%
9 AM 26° Partly Cloudy 34% 12 mph SW 82%
10 AM 27° Mostly Cloudy 56% 12 mph SW 78%
11 AM 28° Mostly Cloudy 50% 12 mph SW 74%
12 PM 29° Mostly Cloudy 50% 11 mph SW 71%
1 PM 29° Mostly Cloudy 51% 10 mph SW 68%
2 PM 29° Mostly Cloudy 69% 10 mph SW 68%
3 PM 28° Mostly Cloudy 69% 10 mph SSW 71%
4 PM 28° Partly Cloudy 80% 11 mph SSW 74%
5 PM 27° Partly Cloudy 76% 10 mph SSW 77%
6 PM 26° Partly Cloudy 81% 9 mph SW 81%
7 PM 25° Mostly Cloudy 90% 9 mph SW 86%
8 PM 24° Mostly Cloudy 90% 8 mph WSW 89%
9 PM 25° Mostly Cloudy 90% 6 mph WSW 90%
10 PM 24° Rain 78% 6 mph SW 92%
11 PM 24° Rain 76% 6 mph WSW 92%
12 AM 24° Rain 67% 8 mph WNW 91%
1 AM 24° Rain 67% 10 mph NW 90%
2 AM 23° Rain 67% 12 mph NNW 87%
15-Day Forecast
Today
7/22
Mostly Cloudy
90%
21°
30°
Thu
7/23
Partly Cloudy
65%
21°
27°
Fri
7/24
Mostly Clear
18%
20°
27°
Sat
7/25
Overcast
44%
19°
25°
Sun
7/26
Drizzle
70%
19°
28°
Mon
7/27
Rain
70%
21°
31°
Tue
7/28
Rain
63%
21°
33°
Wed
7/29
Rain
69%
21°
33°
Thu
7/30
Rain
66%
21°
29°
Fri
7/31
Drizzle
51%
20°
27°
Sat
8/1
Drizzle
60%
20°
29°
Sun
8/2
Drizzle
60%
21°
28°
Mon
8/3
Rain
90%
21°
29°
Tue
8/4
Drizzle
60%
21°
30°
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, 06:00'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
SBCAPE414 J/kg
MLCAPE931 J/kg
MUCAPE1426 J/kg
SBCIN-66 J/kg
MLCIN0 J/kg
Lifted Index-1.3
Kinematics
0–6 km Shear45 kt
0–1 km Shear26 kt
Eff. Shear46 kt
0–1 km SRH-43
0–3 km SRH-77
Eff. SRH-77
Storm Motion229° @ 42 kt
0–1 km EHI-0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index39.9
Thermo & Levels
PWAT2.50 in
0–3 km LR5.1 °C/km
700–500 LR4.8 °C/km
Total Totals46.7
LCL994 hPa
LFC802 hPa
EL246 hPa
Freezing Lvl15,056 ft