Areal Flood Watch 7:00 AM

Allegheny County, Pennsylvania, United States

Last updated: 3:30 AM CDT  ·  Refresh
23°C
Feels like 26°
Mostly Cloudy
▲ 26°  /  ▼ 18°
Wind
5 mph WSW
Humidity
98%
Dew Point
22°
Pressure
28.91 inHg
Visibility
8 mi
UV Index
0.0
Cloud Cover
84%
Sunrise
6:32 AM
Sunset
8:14 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Allegheny County is currently mostly cloudy at 23°C. Precipitation is likely — peak probability 63% around 12 PM. Atmospheric instability is elevated (CAPE up to 1086 J/kg) — isolated convective development possible. Sunrise: 6:32AM · Sunset: 8:14PM.

Alerts

Areal Flood Watch
Expires 7:00 AM
60 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
23°
37%
5 AM
22°
31%
6 AM
22°
33%
7 AM
22°
43%
8 AM
23°
53%
9 AM
23°
52%
10 AM
24°
62%
11 AM
24°
63%
12 PM
25°
63%
1 PM
25°
60%
2 PM
25°
53%
3 PM
26°
58%
4 PM
25°
60%
5 PM
26°
44%
6 PM
26°
41%
7 PM
24°
33%
8 PM
24°
12%
9 PM
23°
9%
10 PM
22°
9%
11 PM
21°
9%
12 AM
21°
13%
1 AM
21°
12%
2 AM
21°
12%
3 AM
21°
12%
7-Day Forecast
Today
26° 18°
Mostly Cloudy with a 62% chance of rain.
Tue
27° 18°
Partly Cloudy.
Wed
27° 17°
Overcast with a 43% chance of rain.
Thu
24° 16°
Fog with a 58% chance of rain.
Fri
24° 16°
Rain, 30% chance.
Sat
26° 15°
Drizzle, 63% chance.
Sun
24° 14°
Rain, 54% chance.
TimeTempConditionsPrecipWindHumidity
Now 23° Mostly Cloudy 37% 5 mph WSW 98%
5 AM 22° Overcast 31% 5 mph W 97%
6 AM 22° Overcast 33% 4 mph WSW 97%
7 AM 22° Mostly Cloudy 43% 5 mph W 96%
8 AM 23° Mostly Cloudy 53% 5 mph W 95%
9 AM 23° Mostly Cloudy 52% 6 mph W 91%
10 AM 24° Mostly Cloudy 62% 6 mph W 88%
11 AM 24° Partly Cloudy 63% 7 mph W 85%
12 PM 25° Mostly Cloudy 63% 7 mph W 84%
1 PM 25° Overcast 60% 7 mph WNW 83%
2 PM 25° Overcast 53% 7 mph WNW 82%
3 PM 26° Overcast 58% 7 mph WNW 81%
4 PM 25° Overcast 60% 6 mph WNW 81%
5 PM 26° Mostly Cloudy 44% 6 mph WNW 82%
6 PM 26° Partly Cloudy 41% 5 mph NW 84%
7 PM 24° Partly Cloudy 33% 4 mph NW 86%
8 PM 24° Mostly Clear 12% 4 mph NNW 87%
9 PM 23° Mostly Clear 9% 4 mph NNW 88%
10 PM 22° Mostly Clear 9% 4 mph NNW 88%
11 PM 21° Mostly Clear 9% 4 mph NNW 90%
12 AM 21° Mostly Clear 13% 4 mph NNW 92%
1 AM 21° Mostly Clear 12% 3 mph NNW 94%
2 AM 21° Partly Cloudy 12% 3 mph NNW 95%
3 AM 21° Partly Cloudy 12% 3 mph NNW 95%
15-Day Forecast
Today
8/17
Mostly Cloudy
62%
18°
26°
Tue
8/18
Partly Cloudy
13%
18°
27°
Wed
8/19
Overcast
43%
17°
27°
Thu
8/20
Fog
58%
16°
24°
Fri
8/21
Rain
30%
16°
24°
Sat
8/22
Drizzle
63%
15°
26°
Sun
8/23
Rain
54%
14°
24°
Mon
8/24
Drizzle
43%
12°
24°
Tue
8/25
Drizzle
44%
13°
26°
Wed
8/26
Drizzle
60%
16°
27°
Thu
8/27
Drizzle
60%
16°
27°
Fri
8/28
Drizzle
60%
16°
24°
Sat
8/29
Drizzle
60%
16°
25°
Sun
8/30
Drizzle
60%
16°
24°
Mon
8/31
Drizzle
60%
16°
25°
60
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
60 AQI 14.0 µg/m³
O3
Ground-level ozone
33 AQI 36 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 60 Moderate 33 60
Tue 54 Moderate 43 54
Wed 53 Moderate 44 53
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 Mon Aug 17, 07:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE440 J/kg
MLCAPE475 J/kg
MUCAPE704 J/kg
SBCIN-5 J/kg
MLCIN-0 J/kg
Lifted Index-0.7
Kinematics
0–6 km Shear16 kt
0–1 km Shear18 kt
Eff. Shear17 kt
0–1 km SRH77
0–3 km SRH68
Eff. SRH68
Storm Motion321° @ 25 kt
0–1 km EHI0.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index32.3
Thermo & Levels
PWAT1.94 in
0–3 km LR4.7 °C/km
700–500 LR4.9 °C/km
Total Totals40.6
LCL972 hPa
LFC912 hPa
EL231 hPa
Freezing Lvl15,889 ft