Severe Thunderstorm Watch 11:00 PM Severe Thunderstorm Watch 11:00 PM Severe Thunderstorm Warning — Somerset County, MD, Wicomico County, MD, Worcester County, MD 11:30 PM

Worcester County, Maryland, United States

Last updated: 10:30 PM CDT  ·  Refresh
24°C
Feels like 26°
Overcast
▲ 28°  /  ▼ 22°
Wind
8 mph SSW
Humidity
90%
Dew Point
22°
Pressure
29.75 inHg
Visibility
9 mi
UV Index
0.0
Cloud Cover
90%
Sunrise
5:54 AM
Sunset
8:20 PM
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WeatherAI™ Analysis

WeatherAI Analysis: Worcester County is currently overcast at 24°C. Precipitation is likely — peak probability 90% around 12 AM. Atmospheric instability is elevated (CAPE up to 1786 J/kg) — isolated convective development possible. Sunrise: 5:54AM · Sunset: 8:20PM.

Alerts

Severe Thunderstorm Watch
Expires 11:00 PM
Severe Thunderstorm Watch
Expires 11:00 PM
Severe Thunderstorm Warning
Somerset County, MD, Wicomico County, MD, Worcester County, MD
Expires 11:30 PM
43 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
24°
74%
12 AM
24°
90%
1 AM
24°
90%
2 AM
23°
90%
3 AM
24°
78%
4 AM
23°
75%
5 AM
22°
75%
6 AM
23°
57%
7 AM
23°
55%
8 AM
24°
55%
9 AM
24°
56%
10 AM
25°
60%
11 AM
26°
64%
12 PM
26°
57%
1 PM
28°
58%
2 PM
28°
59%
3 PM
28°
62%
4 PM
28°
60%
5 PM
28°
65%
6 PM
27°
66%
7 PM
27°
71%
8 PM
26°
76%
9 PM
26°
77%
10 PM
25°
73%
7-Day Forecast
Tonight
28° 22°
Overcast with a 74% chance of rain.
Wed
29° 22°
Mostly Cloudy with a 90% chance of rain.
Thu
26° 20°
Drizzle, 62% chance.
Fri
26° 19°
Partly Cloudy with a 44% chance of rain.
Sat
25° 19°
Overcast with a 45% chance of rain.
Sun
27° 19°
Rain, 70% chance.
Mon
29° 21°
Rain, 63% chance.
TimeTempConditionsPrecipWindHumidity
Now 24° Overcast 74% 8 mph SSW 90%
12 AM 24° Overcast 90% 9 mph SW 92%
1 AM 24° Heavy Rain 90% 10 mph SW 93%
2 AM 23° Heavy Rain 90% 11 mph SW 94%
3 AM 24° Thunderstorm 78% 10 mph SW 95%
4 AM 23° Thunderstorm 75% 10 mph SSW 95%
5 AM 22° Heavy Rain 75% 11 mph SSW 94%
6 AM 23° Mostly Cloudy 57% 13 mph SW 92%
7 AM 23° Mostly Cloudy 55% 14 mph SW 90%
8 AM 24° Mostly Cloudy 55% 14 mph SW 87%
9 AM 24° Mostly Cloudy 56% 14 mph SW 84%
10 AM 25° Mostly Cloudy 60% 14 mph SW 82%
11 AM 26° Mostly Cloudy 64% 14 mph SW 79%
12 PM 26° Mostly Cloudy 57% 14 mph SW 76%
1 PM 28° Mostly Cloudy 58% 14 mph SW 73%
2 PM 28° Mostly Cloudy 59% 14 mph SW 73%
3 PM 28° Mostly Cloudy 62% 13 mph SW 74%
4 PM 28° Partly Cloudy 60% 13 mph SW 76%
5 PM 28° Partly Cloudy 65% 12 mph SW 79%
6 PM 27° Partly Cloudy 66% 10 mph SW 81%
7 PM 27° Partly Cloudy 71% 8 mph SW 84%
8 PM 26° Partly Cloudy 76% 7 mph SW 86%
9 PM 26° Mostly Cloudy 77% 7 mph SW 88%
10 PM 25° Heavy Rain 73% 7 mph SW 89%
15-Day Forecast
Today
7/21
Overcast
74%
22°
28°
Wed
7/22
Mostly Cloudy
90%
22°
29°
Thu
7/23
Drizzle
62%
20°
26°
Fri
7/24
Partly Cloudy
44%
19°
26°
Sat
7/25
Overcast
45%
19°
25°
Sun
7/26
Rain
70%
19°
27°
Mon
7/27
Rain
63%
21°
29°
Tue
7/28
Thunderstorm
71%
22°
30°
Wed
7/29
Rain
69%
21°
28°
Thu
7/30
Drizzle
44%
20°
27°
Fri
7/31
Drizzle
60%
21°
28°
Sat
8/1
Drizzle
60%
22°
27°
Sun
8/2
Drizzle
60%
22°
27°
Mon
8/3
Drizzle
60%
22°
28°
Tue
8/4
Drizzle
60%
23°
29°
43
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
43 AQI 7.7 µg/m³
O3
Ground-level ozone
35 AQI 38 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 43 Good 35 43
Thu 37 Good 37 26
Fri 38 Good 38 32
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
SBCAPE405 J/kg
MLCAPE456 J/kg
MUCAPE1019 J/kg
SBCIN-112 J/kg
MLCIN0 J/kg
Lifted Index-2.2
Kinematics
0–6 km Shear43 kt
0–1 km Shear39 kt
Eff. Shear45 kt
0–1 km SRH50
0–3 km SRH75
Eff. SRH75
Storm Motion221° @ 47 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.2
STP (eff)0.2
Supercell1.8
K-Index36.3
Thermo & Levels
PWAT2.33 in
0–3 km LR4.8 °C/km
700–500 LR5.7 °C/km
Total Totals48.5
LCL984 hPa
LFC772 hPa
EL318 hPa
Freezing Lvl15,177 ft