Severe Thunderstorm Watch 11:00 PM

Garrett County, Maryland, United States

Last updated: 10:31 PM CDT  ·  Refresh
18°C
Feels like 18°
Mostly Cloudy
▲ 23°  /  ▼ 17°
Wind
10 mph WSW
Humidity
98%
Dew Point
18°
Pressure
27.11 inHg
Visibility
7 mi
UV Index
0.0
Cloud Cover
66%
Sunrise
6:07 AM
Sunset
8:39 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Garrett County is currently mostly cloudy at 18°C. Precipitation is likely — peak probability 76% around 1 AM. Atmospheric instability is elevated (CAPE up to 721 J/kg) — isolated convective development possible. Sunrise: 6:07AM · Sunset: 8:39PM.

Alerts

Severe Thunderstorm Watch
Expires 11:00 PM
34 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
18°
66%
12 AM
19°
73%
1 AM
19°
75%
2 AM
19°
65%
3 AM
19°
40%
4 AM
18°
50%
5 AM
18°
67%
6 AM
17°
62%
7 AM
17°
48%
8 AM
17°
52%
9 AM
18°
62%
10 AM
18°
54%
11 AM
18°
43%
12 PM
19°
35%
1 PM
19°
21%
2 PM
19°
18%
3 PM
20°
18%
4 PM
21°
18%
5 PM
21°
7%
6 PM
20°
7%
7 PM
19°
6%
8 PM
18°
6%
9 PM
17°
7%
10 PM
16°
7%
7-Day Forecast
Tonight
23° 17°
Mostly Cloudy with a 66% chance of rain.
Wed
22° 12°
Mostly Cloudy with a 67% chance of rain.
Thu
23° 10°
Mostly Clear.
Fri
23° 12°
Mostly Cloudy with a 58% chance of rain.
Sat
23° 14°
Overcast with a 42% chance of rain.
Sun
27° 14°
Heavy Rain, 82% chance.
Mon
28° 17°
Rain, 71% chance.
TimeTempConditionsPrecipWindHumidity
Now 18° Mostly Cloudy 66% 10 mph WSW 98%
12 AM 19° Overcast 73% 10 mph WSW 98%
1 AM 19° Overcast 75% 10 mph WSW 98%
2 AM 19° Mostly Cloudy 65% 9 mph W 97%
3 AM 19° Mostly Cloudy 40% 9 mph W 97%
4 AM 18° Mostly Cloudy 50% 9 mph W 97%
5 AM 18° Mostly Cloudy 67% 8 mph W 97%
6 AM 17° Mostly Cloudy 62% 8 mph W 97%
7 AM 17° Mostly Cloudy 48% 8 mph W 96%
8 AM 17° Overcast 52% 9 mph W 94%
9 AM 18° Mostly Cloudy 62% 9 mph W 92%
10 AM 18° Mostly Cloudy 54% 10 mph W 91%
11 AM 18° Mostly Cloudy 43% 10 mph W 88%
12 PM 19° Mostly Cloudy 35% 11 mph W 85%
1 PM 19° Partly Cloudy 21% 11 mph W 82%
2 PM 19° Partly Cloudy 18% 11 mph W 78%
3 PM 20° Partly Cloudy 18% 11 mph W 72%
4 PM 21° Partly Cloudy 18% 11 mph W 66%
5 PM 21° Partly Cloudy 7% 10 mph WNW 66%
6 PM 20° Partly Cloudy 7% 9 mph WNW 71%
7 PM 19° Partly Cloudy 6% 9 mph WNW 76%
8 PM 18° Partly Cloudy 6% 8 mph NW 79%
9 PM 17° Partly Cloudy 7% 8 mph NW 81%
10 PM 16° Partly Cloudy 7% 8 mph NW 83%
15-Day Forecast
Today
7/21
Mostly Cloudy
66%
17°
23°
Wed
7/22
Mostly Cloudy
67%
12°
22°
Thu
7/23
Mostly Clear
7%
10°
23°
Fri
7/24
Mostly Cloudy
58%
12°
23°
Sat
7/25
Overcast
42%
14°
23°
Sun
7/26
Heavy Rain
82%
14°
27°
Mon
7/27
Rain
71%
17°
28°
Tue
7/28
Thunderstorm
63%
15°
32°
Wed
7/29
Rain
69%
13°
24°
Thu
7/30
Drizzle
44%
13°
25°
Fri
7/31
Drizzle
60%
13°
26°
Sat
8/1
Drizzle
60%
14°
26°
Sun
8/2
Drizzle
60%
15°
27°
Mon
8/3
Drizzle
60%
16°
27°
Tue
8/4
Drizzle
60%
17°
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
32 AQI 5.9 µg/m³
O3
Ground-level ozone
Dominant
34 AQI 38 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 34 Good 34 32
Thu 34 Good 34 7
Fri 31 Good 31 27
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 90 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE196 J/kg
MLCAPE846 J/kg
MUCAPE1182 J/kg
SBCIN-84 J/kg
MLCIN0 J/kg
Lifted Index-0.9
Kinematics
0–6 km Shear32 kt
0–1 km Shear23 kt
Eff. Shear31 kt
0–1 km SRH-59
0–3 km SRH-53
Eff. SRH-53
Storm Motion234° @ 34 kt
0–1 km EHI-0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index37.2
Thermo & Levels
PWAT1.36 in
0–3 km LR4.9 °C/km
700–500 LR5.6 °C/km
Total Totals49.1
LCL911 hPa
LFC722 hPa
EL337 hPa
Freezing Lvl11,949 ft