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

Grand Central Tower, Chelan County, Washington, United States

Last updated: 4:51 PM CDT  ·  Refresh
12°C
Feels like 10°
Overcast
▲ 12°  /  ▼ 6°
Wind
3 mph W
Humidity
80%
Dew Point
9°
Pressure
27.95 inHg
Visibility
10 mi
UV Index
2.2
Cloud Cover
97%
Sunrise
6:35 AM
Sunset
7:17 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Grand Central Tower is currently overcast at 11°C. Precipitation is likely — peak probability 60% around 3 PM. Sunrise: 6:35AM · Sunset: 7:17PM.

Alerts

Flash Flood Watch
Expires 6:00 PM
Flood Watch
Expires 10:00 PM
31 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
12°
57%
3 PM
9°
60%
4 PM
10°
57%
5 PM
12°
50%
6 PM
11°
44%
7 PM
11°
27%
8 PM
11°
11%
9 PM
10°
7%
10 PM
9°
7%
11 PM
9°
4%
12 AM
8°
4%
1 AM
8°
4%
2 AM
8°
4%
3 AM
8°
3%
4 AM
7°
3%
5 AM
6°
3%
6 AM
6°
3%
7 AM
6°
3%
8 AM
7°
3%
9 AM
11°
3%
10 AM
12°
3%
11 AM
12°
3%
12 PM
13°
3%
1 PM
14°
3%
7-Day Forecast
Today
12° 6°
Overcast with a 57% chance of rain.
Mon
18° 6°
Mostly Clear.
Tue
16° 8°
Mostly Cloudy with a 20% chance of rain.
Wed
23° 9°
Clear.
Thu
26° 9°
Clear.
Fri
26° 9°
Clear.
Sat
26° 9°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 12° Overcast 57% 3 mph W 80%
3 PM 9° Rain 60% 3 mph NW 81%
4 PM 10° Rain 57% 3 mph WNW 80%
5 PM 12° Rain 50% 4 mph WNW 80%
6 PM 11° Rain 44% 4 mph WNW 81%
7 PM 11° Overcast 27% 4 mph WNW 82%
8 PM 11° Mostly Cloudy 11% 5 mph WNW 82%
9 PM 10° Partly Cloudy 7% 5 mph WNW 83%
10 PM 9° Mostly Clear 7% 5 mph NW 83%
11 PM 9° Mostly Clear 4% 5 mph NW 82%
12 AM 8° Mostly Clear 4% 5 mph NW 82%
1 AM 8° Clear 4% 6 mph NW 82%
2 AM 8° Clear 4% 6 mph NW 81%
3 AM 8° Clear 3% 6 mph NW 81%
4 AM 7° Clear 3% 6 mph NW 81%
5 AM 6° Clear 3% 6 mph NW 80%
6 AM 6° Mostly Clear 3% 6 mph NW 79%
7 AM 6° Mostly Clear 3% 6 mph NW 78%
8 AM 7° Mostly Clear 3% 6 mph NW 74%
9 AM 11° Mostly Clear 3% 7 mph NW 69%
10 AM 12° Mostly Clear 3% 7 mph NW 64%
11 AM 12° Mostly Clear 3% 7 mph NW 61%
12 PM 13° Mostly Clear 3% 6 mph NW 58%
1 PM 14° Mostly Clear 3% 6 mph NW 55%
15-Day Forecast
Today
9/13
Overcast
57%
6°
12°
Mon
9/14
Mostly Clear
4%
6°
18°
Tue
9/15
Mostly Cloudy
20%
8°
16°
Wed
9/16
Clear
3%
9°
23°
Thu
9/17
Clear
3%
9°
26°
Fri
9/18
Clear
3%
9°
26°
Sat
9/19
Clear
3%
9°
26°
Sun
9/20
Clear
3%
8°
26°
Mon
9/21
Partly Cloudy
3%
8°
25°
Tue
9/22
Overcast
20%
8°
24°
Wed
9/23
Mostly Cloudy
40%
7°
21°
Thu
9/24
Clear
25%
6°
20°
Fri
9/25
Drizzle
60%
6°
20°
Sat
9/26
Clear
25%
6°
21°
Sun
9/27
Clear
25%
6°
21°
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
20 AQI 3.6 µg/m³
O3
Ground-level ozone
Dominant
31 AQI 34 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 31 Good 31 20
Tue 26 Good 26 14
Wed 28 Good 28 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 Sun Sep 13, 20:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1 J/kg
MLCAPE16 J/kg
MUCAPE0 J/kg
SBCIN-62 J/kg
MLCIN0 J/kg
Lifted Index4.2
Kinematics
0–6 km Shear38 kt
0–1 km Shear21 kt
Eff. Shear—
0–1 km SRH107
0–3 km SRH182
Eff. SRH—
Storm Motion25° @ 20 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index26.8
Thermo & Levels
PWAT0.84 in
0–3 km LR5.8 °C/km
700–500 LR5.5 °C/km
Total Totals45.3
LCL913 hPa
LFC806 hPa
EL794 hPa
Freezing Lvl6,188 ft