Flash Flood Warning — Greene County, PA, Washington County, PA, Brooke County, WV, Marshall County, WV, Ohio County, WV 11:45 AM Flash Flood Warning — Allegheny County, PA, PAC051, Greene County, PA, Washington County, PA, PAC129 12:00 PM Areal Flood Watch 1:00 PM

Greene County, Pennsylvania, United States

Last updated: 9:38 AM CDT  ·  Refresh
21°C
Feels like 23°
Overcast
▲ 25°  /  ▼ 16°
Wind
5 mph SE
Humidity
91%
Dew Point
19°
Pressure
28.74 inHg
Visibility
7 mi
UV Index
3.4
Cloud Cover
91%
Sunrise
6:37 AM
Sunset
8:10 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Greene County is currently overcast at 21°C. Precipitation is likely — peak probability 88% around 11 AM. Atmospheric instability is elevated (CAPE up to 515 J/kg) — isolated convective development possible. Sunrise: 6:37AM · Sunset: 8:10PM.

Alerts

Flash Flood Warning
Greene County, PA, Washington County, PA, Brooke County, WV, Marshall County, WV, Ohio County, WV
Expires 11:45 AM
Flash Flood Warning
Allegheny County, PA, PAC051, Greene County, PA, Washington County, PA, PAC129
Expires 12:00 PM
Areal Flood Watch
Expires 1:00 PM
38 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
21°
66%
11 AM
21°
88%
12 PM
22°
81%
1 PM
23°
67%
2 PM
23°
62%
3 PM
23°
59%
4 PM
22°
58%
5 PM
22°
50%
6 PM
22°
38%
7 PM
21°
19%
8 PM
21°
16%
9 PM
19°
5%
10 PM
18°
5%
11 PM
18°
5%
12 AM
17°
5%
1 AM
17°
5%
2 AM
17°
5%
3 AM
17°
13%
4 AM
16°
12%
5 AM
16°
12%
6 AM
16°
12%
7 AM
16°
12%
8 AM
17°
13%
9 AM
18°
9%
7-Day Forecast
Today
25° 16°
Rain, 67% chance.
Fri
26° 16°
Partly Cloudy with a 45% chance of rain.
Sat
28° 17°
Mostly Cloudy with a 57% chance of rain.
Sun
23° 12°
Mostly Cloudy with a 60% chance of rain.
Mon
24° 11°
Clear.
Tue
27° 12°
Clear.
Wed
26° 15°
Rain, 41% chance.
TimeTempConditionsPrecipWindHumidity
Now 21° Overcast 66% 5 mph SE 91%
11 AM 21° Overcast 88% 4 mph SE 92%
12 PM 22° Rain 81% 4 mph SW 88%
1 PM 23° Rain 67% 5 mph WSW 86%
2 PM 23° Rain 62% 5 mph W 86%
3 PM 23° Rain 59% 4 mph NW 85%
4 PM 22° Mostly Cloudy 58% 4 mph NNW 85%
5 PM 22° Mostly Cloudy 50% 5 mph N 88%
6 PM 22° Partly Cloudy 38% 5 mph NNE 92%
7 PM 21° Mostly Clear 19% 5 mph NNE 95%
8 PM 21° Clear 16% 4 mph NNE 96%
9 PM 19° Clear 5% 4 mph NNE 96%
10 PM 18° Mostly Clear 5% 4 mph NE 96%
11 PM 18° Mostly Clear 5% 4 mph NNE 97%
12 AM 17° Mostly Clear 5% 4 mph NE 97%
1 AM 17° Clear 5% 4 mph NE 98%
2 AM 17° Mostly Clear 5% 4 mph NE 96%
3 AM 17° Mostly Clear 13% 4 mph NE 96%
4 AM 16° Haze 12% 4 mph NE 97%
5 AM 16° Fog 12% 4 mph NE 97%
6 AM 16° Fog 12% 4 mph NE 96%
7 AM 16° Fog 12% 4 mph NE 96%
8 AM 17° Fog 13% 4 mph NE 93%
9 AM 18° Fog 9% 4 mph NE 89%
15-Day Forecast
Today
8/20
Rain
67%
16°
25°
Fri
8/21
Partly Cloudy
45%
16°
26°
Sat
8/22
Mostly Cloudy
57%
17°
28°
Sun
8/23
Mostly Cloudy
60%
12°
23°
Mon
8/24
Clear
8%
11°
24°
Tue
8/25
Clear
17%
12°
27°
Wed
8/26
Rain
41%
15°
26°
Thu
8/27
Rain
69%
16°
27°
Fri
8/28
Rain
68%
16°
28°
Sat
8/29
Drizzle
51%
16°
29°
Sun
8/30
Drizzle
60%
17°
28°
Mon
8/31
Drizzle
60%
17°
27°
Tue
9/1
Drizzle
60%
16°
27°
Wed
9/2
Drizzle
60%
15°
27°
Thu
9/3
Drizzle
60%
15°
28°
38
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
34 AQI 6.3 µg/m³
O3
Ground-level ozone
Dominant
38 AQI 41 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Fri 38 Good 38 34
Sat 34 Good 34 27
Sun 39 Good 39 23
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 Thu Aug 20, 13:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 80 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE277 J/kg
MLCAPE91 J/kg
MUCAPE277 J/kg
SBCIN-7 J/kg
MLCIN-22 J/kg
Lifted Index-1.4
Kinematics
0–6 km Shear44 kt
0–1 km Shear11 kt
Eff. Shear32 kt
0–1 km SRH70
0–3 km SRH197
Eff. SRH197
Storm Motion268° @ 26 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.1
STP (eff)0.1
Supercell0.9
K-Index35.2
Thermo & Levels
PWAT1.75 in
0–3 km LR5.4 °C/km
700–500 LR5.5 °C/km
Total Totals44.2
LCL949 hPa
LFC864 hPa
EL443 hPa
Freezing Lvl12,595 ft