Severe Thunderstorm Watch 11:00 PM Areal Flood Watch 11:00 PM

York County, Virginia, United States

Last updated: 10:33 PM CDT  ·  Refresh
27°C
Feels like 31°
Overcast
▲ 31°  /  ▼ 23°
Wind
12 mph SSW
Humidity
78%
Dew Point
23°
Pressure
29.74 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
92%
Sunrise
6:02 AM
Sunset
8:22 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: York County is currently overcast at 27°C. Precipitation is likely — peak probability 90% around 11 PM. Atmospheric instability is elevated (CAPE up to 1657 J/kg) — isolated convective development possible. Sunrise: 6:02AM · Sunset: 8:22PM.

Alerts

Severe Thunderstorm Watch
Expires 11:00 PM
Areal Flood Watch
Expires 11:00 PM
50 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
27°
90%
12 AM
27°
90%
1 AM
26°
90%
2 AM
25°
84%
3 AM
24°
87%
4 AM
24°
86%
5 AM
23°
77%
6 AM
23°
72%
7 AM
23°
72%
8 AM
24°
63%
9 AM
23°
68%
10 AM
24°
68%
11 AM
25°
77%
12 PM
25°
68%
1 PM
27°
85%
2 PM
27°
85%
3 PM
27°
81%
4 PM
27°
85%
5 PM
27°
85%
6 PM
27°
90%
7 PM
26°
90%
8 PM
26°
90%
9 PM
26°
90%
10 PM
26°
90%
7-Day Forecast
Tonight
31° 23°
Overcast with a 90% chance of rain.
Wed
29° 23°
Heavy Rain, 90% chance.
Thu
27° 19°
Partly Cloudy with a 80% chance of rain.
Fri
28° 21°
Mostly Clear with a 60% chance of rain.
Sat
26° 21°
Drizzle, 51% chance.
Sun
29° 19°
Rain, 70% chance.
Mon
33° 21°
Rain, 63% chance.
TimeTempConditionsPrecipWindHumidity
Now 27° Overcast 90% 12 mph SSW 78%
12 AM 27° Rain 90% 10 mph SW 84%
1 AM 26° Heavy Rain 90% 10 mph SW 91%
2 AM 25° Overcast 84% 10 mph SW 93%
3 AM 24° Heavy Rain 87% 9 mph SW 92%
4 AM 24° Heavy Rain 86% 11 mph SSW 91%
5 AM 23° Heavy Rain 77% 13 mph SSW 90%
6 AM 23° Heavy Rain 72% 14 mph SSW 89%
7 AM 23° Heavy Rain 72% 15 mph SSW 88%
8 AM 24° Overcast 63% 16 mph SW 86%
9 AM 23° Heavy Rain 68% 15 mph SW 84%
10 AM 24° Overcast 68% 15 mph SW 81%
11 AM 25° Rain 77% 15 mph SW 79%
12 PM 25° Heavy Rain 68% 15 mph SW 78%
1 PM 27° Heavy Rain 85% 15 mph SW 77%
2 PM 27° Heavy Rain 85% 14 mph SW 77%
3 PM 27° Mostly Cloudy 81% 14 mph SW 76%
4 PM 27° Mostly Cloudy 85% 13 mph SW 76%
5 PM 27° Mostly Cloudy 85% 12 mph SW 76%
6 PM 27° Mostly Cloudy 90% 11 mph SW 78%
7 PM 26° Heavy Rain 90% 11 mph SW 78%
8 PM 26° Heavy Rain 90% 10 mph SW 80%
9 PM 26° Mostly Cloudy 90% 10 mph SW 81%
10 PM 26° Mostly Cloudy 90% 9 mph SW 83%
15-Day Forecast
Today
7/21
Overcast
90%
23°
31°
Wed
7/22
Heavy Rain
90%
23°
29°
Thu
7/23
Partly Cloudy
80%
19°
27°
Fri
7/24
Mostly Clear
60%
21°
28°
Sat
7/25
Drizzle
51%
21°
26°
Sun
7/26
Rain
70%
19°
29°
Mon
7/27
Rain
63%
21°
33°
Tue
7/28
Thunderstorm
71%
22°
35°
Wed
7/29
Rain
68%
21°
31°
Thu
7/30
Drizzle
44%
19°
29°
Fri
7/31
Drizzle
60%
20°
29°
Sat
8/1
Drizzle
60%
21°
29°
Sun
8/2
Drizzle
60%
21°
29°
Mon
8/3
Drizzle
60%
22°
31°
Tue
8/4
Drizzle
60%
23°
32°
50
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
50 AQI 9.0 µg/m³
O3
Ground-level ozone
31 AQI 34 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 50 Good 31 50
Thu 60 Moderate 27 60
Fri 31 Good 28 31
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 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1681 J/kg
MLCAPE1768 J/kg
MUCAPE2012 J/kg
SBCIN-88 J/kg
MLCIN0 J/kg
Lifted Index-4.6
Kinematics
0–6 km Shear37 kt
0–1 km Shear32 kt
Eff. Shear37 kt
0–1 km SRH62
0–3 km SRH86
Eff. SRH86
Storm Motion223° @ 45 kt
0–1 km EHI0.7
Composite Parameters
Sig. Tornado0.7
STP (eff)0.7
Supercell3.3
K-Index36.2
Thermo & Levels
PWAT2.43 in
0–3 km LR5.5 °C/km
700–500 LR5.9 °C/km
Total Totals49.0
LCL950 hPa
LFC824 hPa
EL161 hPa
Freezing Lvl15,089 ft