Flash Flood Warning — Somerset County, MD, Worcester County, MD, Accomack County, VA 3:15 AM Areal Flood Advisory — Somerset County, MD, Worcester County, MD, Accomack County, VA 3:15 AM Areal Flood Watch 11:00 PM

Accomack County, Virginia, United States

Last updated: 1:05 AM CDT  ·  Refresh
25°C
Feels like 27°
Overcast
▲ 28°  /  ▼ 21°
Wind
13 mph SW
Humidity
95%
Dew Point
24°
Pressure
29.77 inHg
Visibility
8 mi
UV Index
0.0
Cloud Cover
99%
Sunrise
5:58 AM
Sunset
8:19 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Accomack County is currently overcast at 25°C. Precipitation is likely — peak probability 90% around 2 AM. Atmospheric instability is elevated (CAPE up to 1887 J/kg) — isolated convective development possible. Sunrise: 5:58AM · Sunset: 8:19PM.

Alerts

Flash Flood Warning
Somerset County, MD, Worcester County, MD, Accomack County, VA
Expires 3:15 AM
Areal Flood Advisory
Somerset County, MD, Worcester County, MD, Accomack County, VA
Expires 3:15 AM
Areal Flood Watch
Expires 11:00 PM
34 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
25°
90%
3 AM
25°
90%
4 AM
25°
90%
5 AM
24°
65%
6 AM
24°
60%
7 AM
24°
67%
8 AM
24°
65%
9 AM
23°
65%
10 AM
24°
61%
11 AM
25°
61%
12 PM
26°
72%
1 PM
27°
72%
2 PM
27°
72%
3 PM
27°
68%
4 PM
27°
80%
5 PM
27°
81%
6 PM
26°
81%
7 PM
26°
74%
8 PM
26°
81%
9 PM
26°
90%
10 PM
26°
90%
11 PM
26°
90%
12 AM
25°
90%
1 AM
25°
90%
7-Day Forecast
Today
28° 21°
Mostly Cloudy with a 90% chance of rain.
Thu
26° 21°
Rain, 90% chance.
Fri
26° 21°
Partly Cloudy with a 59% chance of rain.
Sat
26° 21°
Drizzle, 53% chance.
Sun
28° 22°
Rain, 70% chance.
Mon
30° 23°
Rain, 71% chance.
Tue
30° 23°
Thunderstorm, 71% chance.
TimeTempConditionsPrecipWindHumidity
Now 25° Overcast 90% 13 mph SW 95%
3 AM 25° Heavy Rain 90% 13 mph SW 93%
4 AM 25° Overcast 90% 15 mph SSW 93%
5 AM 24° Overcast 65% 18 mph SSW 92%
6 AM 24° Overcast 60% 19 mph SW 91%
7 AM 24° Mostly Cloudy 67% 18 mph SW 90%
8 AM 24° Mostly Cloudy 65% 18 mph SW 89%
9 AM 23° Heavy Rain 65% 18 mph SW 88%
10 AM 24° Mostly Cloudy 61% 18 mph SW 86%
11 AM 25° Mostly Cloudy 61% 18 mph SW 84%
12 PM 26° Mostly Cloudy 72% 18 mph SW 81%
1 PM 27° Heavy Rain 72% 19 mph SW 79%
2 PM 27° Mostly Cloudy 72% 18 mph SW 77%
3 PM 27° Mostly Cloudy 68% 17 mph SW 78%
4 PM 27° Mostly Cloudy 80% 17 mph SSW 79%
5 PM 27° Heavy Rain 81% 17 mph SSW 80%
6 PM 26° Mostly Cloudy 81% 14 mph SSW 82%
7 PM 26° Partly Cloudy 74% 12 mph SSW 83%
8 PM 26° Partly Cloudy 81% 9 mph SW 85%
9 PM 26° Mostly Cloudy 90% 9 mph SW 86%
10 PM 26° Mostly Cloudy 90% 10 mph SW 87%
11 PM 26° Rain 90% 10 mph SW 88%
12 AM 25° Rain 90% 10 mph SW 90%
1 AM 25° Heavy Rain 90% 10 mph SW 92%
15-Day Forecast
Today
7/22
Mostly Cloudy
90%
21°
28°
Thu
7/23
Rain
90%
21°
26°
Fri
7/24
Partly Cloudy
59%
21°
26°
Sat
7/25
Drizzle
53%
21°
26°
Sun
7/26
Rain
70%
22°
28°
Mon
7/27
Rain
71%
23°
30°
Tue
7/28
Thunderstorm
71%
23°
30°
Wed
7/29
Thunderstorm
69%
23°
30°
Thu
7/30
Drizzle
44%
22°
28°
Fri
7/31
Rain
68%
22°
27°
Sat
8/1
Drizzle
60%
23°
26°
Sun
8/2
Drizzle
60%
23°
27°
Mon
8/3
Drizzle
60%
23°
27°
Tue
8/4
Rain
90%
24°
28°
Wed
8/5
Rain
90%
24°
28°
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
29 AQI 5.4 µg/m³
O3
Ground-level ozone
Dominant
34 AQI 38 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 34 Good 34 29
Thu 39 Good 39 33
Fri 33 Good 33 33
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
SBCAPE1262 J/kg
MLCAPE1444 J/kg
MUCAPE1633 J/kg
SBCIN-15 J/kg
MLCIN0 J/kg
Lifted Index-3.5
Kinematics
0–6 km Shear38 kt
0–1 km Shear24 kt
Eff. Shear37 kt
0–1 km SRH-70
0–3 km SRH-72
Eff. SRH-72
Storm Motion220° @ 42 kt
0–1 km EHI-0.6
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index36.5
Thermo & Levels
PWAT2.49 in
0–3 km LR5.2 °C/km
700–500 LR5.3 °C/km
Total Totals46.9
LCL989 hPa
LFC848 hPa
EL174 hPa
Freezing Lvl14,685 ft