Severe Thunderstorm Watch 12:00 AM

Allegany County, Maryland, United States

Last updated: 11:52 PM CDT  ·  Refresh
19°C
Feels like 21°
Mostly Cloudy
▲ 24°  /  ▼ 12°
Wind
5 mph SW
Humidity
95%
Dew Point
18°
Pressure
28.40 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
70%
Sunrise
6:05 AM
Sunset
8:36 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 566 J/kg) — isolated convective development possible. Sunrise: 6:05AM · Sunset: 8:36PM.

Alerts

Severe Thunderstorm Watch
Expires 12:00 AM
56 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
19°
12%
1 AM
19°
20%
2 AM
19°
25%
3 AM
19°
6%
4 AM
19°
13%
5 AM
17°
31%
6 AM
18°
27%
7 AM
19°
16%
8 AM
20°
24%
9 AM
19°
29%
10 AM
21°
29%
11 AM
21°
17%
12 PM
22°
13%
1 PM
22°
6%
2 PM
22°
7%
3 PM
23°
7%
4 PM
23°
7%
5 PM
24°
7%
6 PM
23°
3%
7 PM
22°
3%
8 PM
21°
3%
9 PM
19°
3%
10 PM
19°
3%
11 PM
18°
3%
7-Day Forecast
Today
24° 12°
Mostly Clear with a 29% chance of rain.
Thu
24° 12°
Clear.
Fri
25° 13°
Mostly Cloudy with a 36% chance of rain.
Sat
24° 16°
Overcast with a 26% chance of rain.
Sun
29° 14°
Rain, 70% chance.
Mon
31° 17°
Rain, 71% chance.
Tue
33° 16°
Thunderstorm, 63% chance.
TimeTempConditionsPrecipWindHumidity
Now 19° Mostly Cloudy 12% 5 mph SW 95%
1 AM 19° Mostly Cloudy 20% 5 mph SW 95%
2 AM 19° Partly Cloudy 25% 4 mph WSW 95%
3 AM 19° Mostly Clear 6% 4 mph SW 95%
4 AM 19° Mostly Clear 13% 4 mph SW 95%
5 AM 17° Mostly Clear 31% 4 mph SW 94%
6 AM 18° Mostly Clear 27% 4 mph WSW 94%
7 AM 19° Mostly Clear 16% 5 mph W 92%
8 AM 20° Mostly Clear 24% 6 mph W 86%
9 AM 19° Partly Cloudy 29% 7 mph W 81%
10 AM 21° Partly Cloudy 29% 8 mph W 74%
11 AM 21° Partly Cloudy 17% 9 mph WNW 69%
12 PM 22° Partly Cloudy 13% 10 mph WNW 65%
1 PM 22° Partly Cloudy 6% 11 mph WNW 61%
2 PM 22° Partly Cloudy 7% 10 mph WNW 58%
3 PM 23° Mostly Clear 7% 10 mph WNW 55%
4 PM 23° Mostly Clear 7% 9 mph WNW 53%
5 PM 24° Mostly Clear 7% 9 mph WNW 56%
6 PM 23° Mostly Clear 3% 8 mph WNW 60%
7 PM 22° Clear 3% 8 mph NW 63%
8 PM 21° Clear 3% 8 mph NW 65%
9 PM 19° Clear 3% 7 mph NW 67%
10 PM 19° Clear 3% 7 mph NW 69%
11 PM 18° Clear 3% 6 mph NW 71%
15-Day Forecast
Today
7/22
Mostly Clear
29%
12°
24°
Thu
7/23
Clear
3%
12°
24°
Fri
7/24
Mostly Cloudy
36%
13°
25°
Sat
7/25
Overcast
26%
16°
24°
Sun
7/26
Rain
70%
14°
29°
Mon
7/27
Rain
71%
17°
31°
Tue
7/28
Thunderstorm
63%
16°
33°
Wed
7/29
Drizzle
63%
14°
27°
Thu
7/30
Drizzle
44%
14°
27°
Fri
7/31
Drizzle
51%
13°
27°
Sat
8/1
Drizzle
60%
14°
27°
Sun
8/2
Drizzle
60%
15°
28°
Mon
8/3
Drizzle
60%
16°
28°
Tue
8/4
Drizzle
60%
17°
30°
Wed
8/5
Drizzle
60%
17°
29°
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 LCLLFCEL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Wed Jul 22, 03:00'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
SBCAPE9 J/kg
MLCAPE446 J/kg
MUCAPE1041 J/kg
SBCIN-400 J/kg
MLCIN0 J/kg
Lifted Index0.6
Kinematics
0–6 km Shear34 kt
0–1 km Shear29 kt
Eff. Shear19 kt
0–1 km SRH-94
0–3 km SRH-58
Eff. SRH-7
Storm Motion227° @ 29 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index35.0
Thermo & Levels
PWAT1.47 in
0–3 km LR4.5 °C/km
700–500 LR5.9 °C/km
Total Totals47.7
LCL945 hPa
LFC451 hPa
EL393 hPa
Freezing Lvl13,340 ft