Flash Flood Watch 6:00 PM

Grant County, Washington, United States

Last updated: 5:56 PM CDT  ·  Refresh
55°F
Feels like 48°
Overcast
▲ 58°  /  ▼ 44°
Wind
12 mph SW
Humidity
79%
Dew Point
48°
Pressure
28.68 inHg
Visibility
8 mi
UV Index
2.7
Cloud Cover
91%
Sunrise
6:31 AM
Sunset
7:13 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Grant County is currently overcast at 55°F. Precipitation is likely — peak probability 56% around 3 PM. Sunrise: 6:31AM · Sunset: 7:13PM.

Alerts

Flash Flood Watch
Expires 6:00 PM
33 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
55°
56%
4 PM
53°
27%
5 PM
58°
27%
6 PM
57°
32%
7 PM
56°
34%
8 PM
56°
51%
9 PM
52°
32%
10 PM
52°
17%
11 PM
51°
4%
12 AM
50°
7%
1 AM
49°
7%
2 AM
48°
7%
3 AM
48°
6%
4 AM
47°
6%
5 AM
44°
7%
6 AM
44°
3%
7 AM
45°
3%
8 AM
48°
3%
9 AM
51°
3%
10 AM
56°
3%
11 AM
58°
3%
12 PM
60°
3%
1 PM
64°
3%
2 PM
64°
3%
7-Day Forecast
Today
58° 44°
Overcast with a 56% chance of rain.
Mon
71° 44°
Fog.
Tue
71° 47°
Mostly Cloudy.
Wed
80° 48°
Clear.
Thu
84° 52°
Clear.
Fri
85° 55°
Mostly Clear.
Sat
84° 54°
Partly Cloudy.
TimeTempConditionsPrecipWindHumidity
Now 55° Overcast 56% 12 mph SW 79%
4 PM 53° Overcast 27% 10 mph SW 80%
5 PM 58° Mostly Cloudy 27% 8 mph SW 80%
6 PM 57° Mostly Cloudy 32% 6 mph SW 81%
7 PM 56° Overcast 34% 5 mph SW 83%
8 PM 56° Rain 51% 4 mph SW 85%
9 PM 52° Overcast 32% 4 mph SSW 87%
10 PM 52° Overcast 17% 5 mph SSW 88%
11 PM 51° Mostly Cloudy 4% 4 mph SSW 88%
12 AM 50° Partly Cloudy 7% 4 mph SW 88%
1 AM 49° Partly Cloudy 7% 4 mph SW 88%
2 AM 48° Partly Cloudy 7% 5 mph WSW 87%
3 AM 48° Fog 6% 5 mph WSW 86%
4 AM 47° Fog 6% 5 mph WSW 85%
5 AM 44° Fog 7% 5 mph SW 84%
6 AM 44° Fog 3% 5 mph SW 83%
7 AM 45° Fog 3% 4 mph SW 82%
8 AM 48° Mostly Clear 3% 4 mph SW 75%
9 AM 51° Mostly Clear 3% 4 mph SW 68%
10 AM 56° Mostly Clear 3% 4 mph SSW 64%
11 AM 58° Clear 3% 4 mph SSW 58%
12 PM 60° Clear 3% 5 mph SW 52%
1 PM 64° Clear 3% 5 mph SW 45%
2 PM 64° Mostly Clear 3% 6 mph SSW 44%
15-Day Forecast
Today
9/13
Overcast
56%
44°
58°
Mon
9/14
Fog
7%
44°
71°
Tue
9/15
Mostly Cloudy
14%
47°
71°
Wed
9/16
Clear
3%
48°
80°
Thu
9/17
Clear
3%
52°
84°
Fri
9/18
Mostly Clear
3%
55°
85°
Sat
9/19
Partly Cloudy
3%
54°
84°
Sun
9/20
Clear
3%
55°
83°
Mon
9/21
Mostly Clear
3%
55°
82°
Tue
9/22
Overcast
19%
54°
82°
Wed
9/23
Mostly Cloudy
16%
53°
78°
Thu
9/24
Clear
25%
51°
76°
Fri
9/25
Clear
25%
50°
75°
Sat
9/26
Clear
25%
51°
77°
Sun
9/27
Clear
3%
51°
77°
33
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
28 AQI 5.1 µg/m³
O3
Ground-level ozone
Dominant
33 AQI 37 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 33 Good 33 28
Tue 30 Good 30 17
Wed 31 Good 31 25
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
SBCAPE70 J/kg
MLCAPE11 J/kg
MUCAPE0 J/kg
SBCIN0 J/kg
MLCIN-4 J/kg
Lifted Index1.0
Kinematics
0–6 km Shear49 kt
0–1 km Shear10 kt
Eff. Shear—
0–1 km SRH73
0–3 km SRH94
Eff. SRH—
Storm Motion52° @ 10 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index28.9
Thermo & Levels
PWAT0.81 in
0–3 km LR6.4 °C/km
700–500 LR6.7 °C/km
Total Totals50.8
LCL916 hPa
LFC971 hPa
EL693 hPa
Freezing Lvl5,653 ft