Severe Thunderstorm Watch 11:00 PM

Anne Arundel County, Maryland, United States

Last updated: 10:36 PM CDT  ·  Refresh
22°C
Feels like 24°
Overcast
▲ 32°  /  ▼ 21°
Wind
8 mph SSW
Humidity
94%
Dew Point
22°
Pressure
29.68 inHg
Visibility
3 mi
UV Index
0.0
Cloud Cover
98%
Sunrise
5:57 AM
Sunset
8:27 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Anne Arundel County is currently overcast at 22°C. Precipitation is likely — peak probability 90% around 11 PM. Atmospheric instability is elevated (CAPE up to 1192 J/kg) — isolated convective development possible. Sunrise: 5:57AM · Sunset: 8:27PM.

Alerts

Severe Thunderstorm Watch
Expires 11:00 PM
42 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
22°
90%
12 AM
23°
53%
1 AM
23°
64%
2 AM
23°
62%
3 AM
22°
49%
4 AM
22°
53%
5 AM
21°
32%
6 AM
22°
28%
7 AM
22°
28%
8 AM
24°
29%
9 AM
24°
27%
10 AM
26°
28%
11 AM
27°
40%
12 PM
27°
41%
1 PM
29°
31%
2 PM
29°
31%
3 PM
29°
31%
4 PM
29°
31%
5 PM
30°
32%
6 PM
28°
32%
7 PM
27°
33%
8 PM
27°
34%
9 PM
26°
22%
10 PM
26°
22%
7-Day Forecast
Tonight
32° 21°
Overcast with a 90% chance of rain.
Wed
30° 21°
Partly Cloudy with a 62% chance of rain.
Thu
28° 19°
Clear.
Fri
28° 19°
Overcast with a 37% chance of rain.
Sat
27° 19°
Partly Cloudy with a 45% chance of rain.
Sun
29° 20°
Rain, 70% chance.
Mon
32° 21°
Rain, 71% chance.
TimeTempConditionsPrecipWindHumidity
Now 22° Overcast 90% 8 mph SSW 94%
12 AM 23° Overcast 53% 10 mph SW 93%
1 AM 23° Rain 64% 10 mph SW 92%
2 AM 23° Rain 62% 10 mph SW 92%
3 AM 22° Mostly Cloudy 49% 9 mph SW 94%
4 AM 22° Mostly Cloudy 53% 8 mph SW 94%
5 AM 21° Partly Cloudy 32% 8 mph SW 94%
6 AM 22° Partly Cloudy 28% 8 mph SW 93%
7 AM 22° Partly Cloudy 28% 8 mph SW 92%
8 AM 24° Mostly Clear 29% 8 mph WSW 87%
9 AM 24° Mostly Clear 27% 9 mph WSW 79%
10 AM 26° Partly Cloudy 28% 9 mph W 72%
11 AM 27° Partly Cloudy 40% 10 mph W 66%
12 PM 27° Mostly Clear 41% 9 mph WSW 62%
1 PM 29° Mostly Clear 31% 9 mph WSW 58%
2 PM 29° Partly Cloudy 31% 9 mph WSW 55%
3 PM 29° Partly Cloudy 31% 8 mph W 53%
4 PM 29° Partly Cloudy 31% 8 mph W 51%
5 PM 30° Partly Cloudy 32% 8 mph WNW 53%
6 PM 28° Partly Cloudy 32% 6 mph WNW 59%
7 PM 27° Partly Cloudy 33% 6 mph WNW 64%
8 PM 27° Partly Cloudy 34% 5 mph WNW 64%
9 PM 26° Partly Cloudy 22% 6 mph NW 62%
10 PM 26° Partly Cloudy 22% 8 mph NNW 60%
15-Day Forecast
Today
7/21
Overcast
90%
21°
32°
Wed
7/22
Partly Cloudy
62%
21°
30°
Thu
7/23
Clear
3%
19°
28°
Fri
7/24
Overcast
37%
19°
28°
Sat
7/25
Partly Cloudy
45%
19°
27°
Sun
7/26
Rain
70%
20°
29°
Mon
7/27
Rain
71%
21°
32°
Tue
7/28
Thunderstorm
71%
21°
33°
Wed
7/29
Rain
44%
21°
30°
Thu
7/30
Drizzle
44%
20°
29°
Fri
7/31
Drizzle
60%
18°
29°
Sat
8/1
Drizzle
60%
22°
28°
Sun
8/2
Drizzle
60%
22°
28°
Mon
8/3
Drizzle
60%
22°
30°
Tue
8/4
Rain
90%
23°
30°
42
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 4.3 µg/m³
O3
Ground-level ozone
Dominant
42 AQI 45 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 42 Good 42 24
Thu 43 Good 43 18
Fri 39 Good 39 22
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 70 80 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE196 J/kg
MLCAPE164 J/kg
MUCAPE433 J/kg
SBCIN-98 J/kg
MLCIN0 J/kg
Lifted Index-0.9
Kinematics
0–6 km Shear35 kt
0–1 km Shear23 kt
Eff. Shear33 kt
0–1 km SRH-37
0–3 km SRH-47
Eff. SRH-47
Storm Motion229° @ 33 kt
0–1 km EHI-0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index35.2
Thermo & Levels
PWAT2.20 in
0–3 km LR4.6 °C/km
700–500 LR5.4 °C/km
Total Totals46.1
LCL992 hPa
LFC777 hPa
EL345 hPa
Freezing Lvl14,957 ft