Areal Flood Watch 7:00 AM

Westmoreland County, Pennsylvania, United States

Last updated: 2:09 AM CDT  ·  Refresh
22°C
Feels like 24°
Overcast
▲ 26°  /  ▼ 16°
Wind
7 mph WSW
Humidity
99%
Dew Point
22°
Pressure
28.59 inHg
Visibility
5 mi
UV Index
0.0
Cloud Cover
91%
Sunrise
6:31 AM
Sunset
8:12 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Westmoreland County is currently overcast at 22°C. Precipitation is likely — peak probability 81% around 12 PM. Atmospheric instability is elevated (CAPE up to 1332 J/kg) — isolated convective development possible. Sunrise: 6:31AM · Sunset: 8:12PM.

Alerts

Areal Flood Watch
Expires 7:00 AM
46 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
22°
59%
4 AM
22°
60%
5 AM
22°
60%
6 AM
21°
59%
7 AM
21°
42%
8 AM
22°
46%
9 AM
22°
46%
10 AM
23°
56%
11 AM
23°
76%
12 PM
24°
81%
1 PM
24°
81%
2 PM
26°
81%
3 PM
25°
72%
4 PM
25°
73%
5 PM
24°
41%
6 PM
24°
42%
7 PM
24°
46%
8 PM
23°
25%
9 PM
23°
25%
10 PM
21°
16%
11 PM
21°
16%
12 AM
20°
15%
1 AM
19°
15%
2 AM
18°
17%
7-Day Forecast
Today
26° 16°
Overcast with a 81% chance of rain.
Tue
26° 16°
Partly Cloudy.
Wed
27° 16°
Mostly Cloudy with a 50% chance of rain.
Thu
23° 14°
Fog with a 61% chance of rain.
Fri
24° 14°
Rain, 64% chance.
Sat
25° 15°
Rain, 70% chance.
Sun
24° 13°
Rain, 63% chance.
TimeTempConditionsPrecipWindHumidity
Now 22° Overcast 59% 7 mph WSW 99%
4 AM 22° Overcast 60% 7 mph WSW 99%
5 AM 22° Overcast 60% 7 mph WSW 99%
6 AM 21° Overcast 59% 7 mph WSW 98%
7 AM 21° Overcast 42% 6 mph WSW 98%
8 AM 22° Overcast 46% 6 mph W 98%
9 AM 22° Overcast 46% 6 mph W 96%
10 AM 23° Overcast 56% 7 mph WSW 93%
11 AM 23° Overcast 76% 8 mph W 90%
12 PM 24° Overcast 81% 8 mph W 86%
1 PM 24° Rain 81% 8 mph W 82%
2 PM 26° Overcast 81% 7 mph W 79%
3 PM 25° Overcast 72% 6 mph W 81%
4 PM 25° Overcast 73% 6 mph W 84%
5 PM 24° Overcast 41% 5 mph W 86%
6 PM 24° Mostly Cloudy 42% 4 mph W 88%
7 PM 24° Mostly Cloudy 46% 4 mph W 90%
8 PM 23° Rain 25% 4 mph W 92%
9 PM 23° Partly Cloudy 25% 3 mph WNW 92%
10 PM 21° Partly Cloudy 16% 3 mph WNW 91%
11 PM 21° Partly Cloudy 16% 3 mph NW 91%
12 AM 20° Partly Cloudy 15% 3 mph NW 92%
1 AM 19° Partly Cloudy 15% 3 mph NW 94%
2 AM 18° Clear 17% 2 mph NNW 96%
15-Day Forecast
Today
8/17
Overcast
81%
16°
26°
Tue
8/18
Partly Cloudy
16%
16°
26°
Wed
8/19
Mostly Cloudy
50%
16°
27°
Thu
8/20
Fog
61%
14°
23°
Fri
8/21
Rain
64%
14°
24°
Sat
8/22
Rain
70%
15°
25°
Sun
8/23
Rain
63%
13°
24°
Mon
8/24
Drizzle
43%
10°
23°
Tue
8/25
Drizzle
44%
12°
26°
Wed
8/26
Drizzle
60%
14°
26°
Thu
8/27
Drizzle
60%
14°
26°
Fri
8/28
Drizzle
60%
14°
24°
Sat
8/29
Drizzle
60%
13°
24°
Sun
8/30
Clear
25%
13°
26°
Mon
8/31
Clear
60%
14°
26°
46
Good
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
46 AQI 8.4 µg/m³
O3
Ground-level ozone
32 AQI 35 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 46 Good 32 46
Tue 47 Good 42 47
Wed 49 Good 44 49
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, 05:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE227 J/kg
MLCAPE272 J/kg
MUCAPE362 J/kg
SBCIN-6 J/kg
MLCIN-2 J/kg
Lifted Index-0.8
Kinematics
0–6 km Shear16 kt
0–1 km Shear14 kt
Eff. Shear17 kt
0–1 km SRH76
0–3 km SRH83
Eff. SRH83
Storm Motion338° @ 17 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index34.6
Thermo & Levels
PWAT1.97 in
0–3 km LR4.4 °C/km
700–500 LR5.3 °C/km
Total Totals42.8
LCL965 hPa
LFC866 hPa
EL304 hPa
Freezing Lvl14,728 ft