Flash Flood Watch 6:00 PM Areal Flood Watch 10:00 PM

Chelan County, Washington, United States

Last updated: 5:59 PM CDT  ·  Refresh
11°C
Feels like 8°
Rain
▲ 11°  /  ▼ 4°
Wind
5 mph NNW
Humidity
87%
Dew Point
9°
Pressure
27.11 inHg
Visibility
10 mi
UV Index
2.2
Cloud Cover
95%
Sunrise
6:35 AM
Sunset
7:18 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Chelan County is currently rain at 10°C. Precipitation is likely — peak probability 76% around 4 PM. Sunrise: 6:35AM · Sunset: 7:18PM.

Alerts

Flash Flood Watch
Expires 6:00 PM
Areal Flood Watch
Expires 10:00 PM
31 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
11°
76%
4 PM
8°
76%
5 PM
9°
74%
6 PM
9°
45%
7 PM
9°
46%
8 PM
9°
37%
9 PM
8°
36%
10 PM
8°
20%
11 PM
8°
20%
12 AM
8°
29%
1 AM
7°
17%
2 AM
7°
17%
3 AM
6°
17%
4 AM
6°
16%
5 AM
4°
16%
6 AM
4°
16%
7 AM
4°
16%
8 AM
6°
16%
9 AM
7°
3%
10 AM
10°
3%
11 AM
11°
3%
12 PM
11°
3%
1 PM
12°
3%
2 PM
12°
3%
7-Day Forecast
Today
11° 4°
Rain, 76% chance.
Mon
13° 4°
Partly Cloudy with a 29% chance of rain.
Tue
15° 6°
Mostly Cloudy with a 20% chance of rain.
Wed
22° 7°
Clear.
Thu
26° 8°
Clear.
Fri
25° 9°
Clear.
Sat
25° 8°
Mostly Clear.
TimeTempConditionsPrecipWindHumidity
Now 11° Rain 76% 5 mph NNW 87%
4 PM 8° Rain 76% 5 mph NNW 88%
5 PM 9° Rain 74% 5 mph NNW 87%
6 PM 9° Overcast 45% 6 mph NNW 87%
7 PM 9° Overcast 46% 6 mph NNW 89%
8 PM 9° Mostly Cloudy 37% 7 mph NNW 90%
9 PM 8° Mostly Cloudy 36% 7 mph NNW 90%
10 PM 8° Mostly Cloudy 20% 8 mph NNW 90%
11 PM 8° Partly Cloudy 20% 8 mph NNW 91%
12 AM 8° Partly Cloudy 29% 8 mph NNW 92%
1 AM 7° Partly Cloudy 17% 9 mph NNW 92%
2 AM 7° Partly Cloudy 17% 9 mph NNW 91%
3 AM 6° Mostly Clear 17% 8 mph NNW 91%
4 AM 6° Mostly Clear 16% 9 mph NNW 91%
5 AM 4° Mostly Clear 16% 8 mph NNW 90%
6 AM 4° Mostly Clear 16% 8 mph NNW 88%
7 AM 4° Mostly Clear 16% 8 mph NNW 87%
8 AM 6° Partly Cloudy 16% 8 mph NW 82%
9 AM 7° Partly Cloudy 3% 8 mph NW 78%
10 AM 10° Partly Cloudy 3% 8 mph NW 75%
11 AM 11° Partly Cloudy 3% 8 mph NW 72%
12 PM 11° Partly Cloudy 3% 8 mph NW 68%
1 PM 12° Partly Cloudy 3% 8 mph NW 65%
2 PM 12° Mostly Clear 3% 8 mph NW 65%
15-Day Forecast
Today
9/13
Rain
76%
4°
11°
Mon
9/14
Partly Cloudy
29%
4°
13°
Tue
9/15
Mostly Cloudy
20%
6°
15°
Wed
9/16
Clear
3%
7°
22°
Thu
9/17
Clear
3%
8°
26°
Fri
9/18
Clear
3%
9°
25°
Sat
9/19
Mostly Clear
3%
8°
25°
Sun
9/20
Clear
8%
8°
23°
Mon
9/21
Partly Cloudy
3%
7°
23°
Tue
9/22
Drizzle
45%
7°
23°
Wed
9/23
Overcast
33%
6°
19°
Thu
9/24
Drizzle
60%
4°
18°
Fri
9/25
Drizzle
60%
4°
18°
Sat
9/26
Drizzle
60%
5°
18°
Sun
9/27
Drizzle
60%
5°
18°
31
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
23 AQI 4.3 µg/m³
O3
Ground-level ozone
Dominant
31 AQI 35 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 31 Good 31 23
Tue 25 Good 25 14
Wed 27 Good 27 21
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 Sun Sep 13, 21:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE32 J/kg
MLCAPE9 J/kg
MUCAPE32 J/kg
SBCIN-5 J/kg
MLCIN0 J/kg
Lifted Index2.8
Kinematics
0–6 km Shear35 kt
0–1 km Shear8 kt
Eff. Shear—
0–1 km SRH52
0–3 km SRH78
Eff. SRH—
Storm Motion54° @ 22 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index28.4
Thermo & Levels
PWAT0.80 in
0–3 km LR6.1 °C/km
700–500 LR5.7 °C/km
Total Totals46.5
LCL893 hPa
LFC858 hPa
EL643 hPa
Freezing Lvl5,282 ft