Severe Thunderstorm Watch 11:00 PM

Allegany County, Maryland, United States

Last updated: 10:35 PM CDT  ·  Refresh
19°C
Feels like 19°
Mostly Cloudy
▲ 24°  /  ▼ 17°
Wind
8 mph SSW
Humidity
96%
Dew Point
18°
Pressure
28.40 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
80%
Sunrise
6:04 AM
Sunset
8:37 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Allegany County is currently mostly cloudy at 19°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 599 J/kg) — isolated convective development possible. Sunrise: 6:04AM · Sunset: 8:37PM.

Alerts

Severe Thunderstorm Watch
Expires 11:00 PM
56 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
19°
12%
12 AM
19°
20%
1 AM
19°
24%
2 AM
19°
37%
3 AM
19°
23%
4 AM
19°
11%
5 AM
17°
31%
6 AM
18°
27%
7 AM
19°
16%
8 AM
19°
19%
9 AM
19°
29%
10 AM
20°
29%
11 AM
21°
18%
12 PM
22°
13%
1 PM
22°
6%
2 PM
22°
7%
3 PM
22°
7%
4 PM
22°
7%
5 PM
24°
7%
6 PM
22°
3%
7 PM
22°
3%
8 PM
21°
3%
9 PM
20°
3%
10 PM
19°
3%
7-Day Forecast
Tonight
24° 17°
Mostly Cloudy.
Wed
24° 14°
Partly Cloudy with a 37% chance of rain.
Thu
24° 12°
Clear.
Fri
25° 12°
Partly Cloudy with a 36% chance of rain.
Sat
24° 16°
Overcast.
Sun
29° 14°
Rain, 70% chance.
Mon
30° 17°
Rain, 71% chance.
TimeTempConditionsPrecipWindHumidity
Now 19° Mostly Cloudy 12% 8 mph SSW 96%
12 AM 19° Mostly Cloudy 20% 6 mph SW 95%
1 AM 19° Mostly Cloudy 24% 5 mph SW 95%
2 AM 19° Partly Cloudy 37% 5 mph SW 95%
3 AM 19° Partly Cloudy 23% 5 mph SW 95%
4 AM 19° Mostly Clear 11% 4 mph WSW 95%
5 AM 17° Mostly Clear 31% 3 mph WSW 94%
6 AM 18° Partly Cloudy 27% 4 mph WSW 94%
7 AM 19° Partly Cloudy 16% 4 mph WSW 93%
8 AM 19° Mostly Clear 19% 5 mph W 88%
9 AM 19° Partly Cloudy 29% 7 mph W 82%
10 AM 20° Partly Cloudy 29% 8 mph W 76%
11 AM 21° Rain 18% 9 mph W 71%
12 PM 22° Partly Cloudy 13% 10 mph WNW 66%
1 PM 22° Partly Cloudy 6% 11 mph WNW 62%
2 PM 22° Partly Cloudy 7% 11 mph WNW 59%
3 PM 22° Mostly Clear 7% 10 mph WNW 56%
4 PM 22° Mostly Clear 7% 10 mph WNW 54%
5 PM 24° Mostly Clear 7% 9 mph WNW 55%
6 PM 22° Mostly Clear 3% 9 mph WNW 59%
7 PM 22° Clear 3% 8 mph NW 62%
8 PM 21° Clear 3% 8 mph NW 64%
9 PM 20° Clear 3% 8 mph NW 66%
10 PM 19° Clear 3% 7 mph NW 69%
15-Day Forecast
Today
7/21
Mostly Cloudy
12%
17°
24°
Wed
7/22
Partly Cloudy
37%
14°
24°
Thu
7/23
Clear
3%
12°
24°
Fri
7/24
Partly Cloudy
36%
12°
25°
Sat
7/25
Overcast
15%
16°
24°
Sun
7/26
Rain
70%
14°
29°
Mon
7/27
Rain
71%
17°
30°
Tue
7/28
Rain
63%
16°
33°
Wed
7/29
Drizzle
44%
14°
27°
Thu
7/30
Drizzle
44%
14°
27°
Fri
7/31
Drizzle
60%
13°
27°
Sat
8/1
Drizzle
60%
15°
27°
Sun
8/2
Drizzle
60%
15°
28°
Mon
8/3
Drizzle
60%
16°
28°
Tue
8/4
Drizzle
60%
17°
30°
56
Moderate
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
56 AQI 11.6 µg/m³
O3
Ground-level ozone
34 AQI 37 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 56 Moderate 34 56
Thu 33 Good 33 9
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 LCL0°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
SBCAPE0 J/kg
MLCAPE344 J/kg
MUCAPE792 J/kg
SBCIN-6073 J/kg
MLCIN0 J/kg
Lifted Index0.6
Kinematics
0–6 km Shear35 kt
0–1 km Shear30 kt
Eff. Shear22 kt
0–1 km SRH-54
0–3 km SRH4
Eff. SRH25
Storm Motion235° @ 33 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado-0.0
STP (eff)0.0
Supercell0.2
K-Index35.2
Thermo & Levels
PWAT1.50 in
0–3 km LR4.5 °C/km
700–500 LR5.9 °C/km
Total Totals47.8
LCL946 hPa
LFC—
EL—
Freezing Lvl13,107 ft