Severe Thunderstorm Watch 10:00 PM

Grant County, Wisconsin, United States

Last updated: 9:11 PM CDT  ·  Refresh
22°C
Feels like 22°
Clear
▲ 27°  /  ▼ 15°
Wind
7 mph NW
Humidity
81%
Dew Point
17°
Pressure
28.91 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
0%
Sunrise
6:15 AM
Sunset
7:55 PM
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WeatherAI™ Analysis

WeatherAI Analysis: Grant County is currently clear at 22°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 751 J/kg) — isolated convective development possible. Sunrise: 6:15AM · Sunset: 7:55PM.

Alerts

Severe Thunderstorm Watch
Expires 10:00 PM
31 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
22°
3%
10 PM
21°
14%
11 PM
20°
14%
12 AM
19°
14%
1 AM
18°
3%
2 AM
18°
3%
3 AM
17°
3%
4 AM
17°
3%
5 AM
15°
3%
6 AM
15°
3%
7 AM
15°
3%
8 AM
17°
3%
9 AM
21°
3%
10 AM
22°
3%
11 AM
23°
3%
12 PM
24°
3%
1 PM
26°
3%
2 PM
26°
3%
3 PM
26°
3%
4 PM
27°
3%
5 PM
25°
3%
6 PM
24°
3%
7 PM
23°
3%
8 PM
22°
3%
7-Day Forecast
Tonight
27° 15°
Clear.
Sat
27° 14°
Clear.
Sun
24° 12°
Clear.
Mon
23° 11°
Mostly Cloudy with a 44% chance of rain.
Tue
26° 13°
Drizzle, 64% chance.
Wed
28° 16°
Rain, 64% chance.
Thu
27° 15°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 22° Clear 3% 7 mph NW 81%
10 PM 21° Clear 14% 7 mph NW 79%
11 PM 20° Clear 14% 6 mph NW 80%
12 AM 19° Clear 14% 6 mph NNW 80%
1 AM 18° Clear 3% 5 mph NNW 81%
2 AM 18° Clear 3% 5 mph NW 82%
3 AM 17° Clear 3% 4 mph NW 83%
4 AM 17° Clear 3% 5 mph WNW 84%
5 AM 15° Clear 3% 5 mph WNW 85%
6 AM 15° Clear 3% 5 mph WNW 86%
7 AM 15° Clear 3% 5 mph WNW 87%
8 AM 17° Clear 3% 7 mph NW 82%
9 AM 21° Clear 3% 10 mph NW 76%
10 AM 22° Clear 3% 11 mph NW 72%
11 AM 23° Clear 3% 12 mph NW 66%
12 PM 24° Clear 3% 14 mph NW 59%
1 PM 26° Clear 3% 14 mph NW 54%
2 PM 26° Clear 3% 14 mph NW 54%
3 PM 26° Clear 3% 13 mph NW 53%
4 PM 27° Clear 3% 13 mph NW 54%
5 PM 25° Clear 3% 11 mph NW 57%
6 PM 24° Clear 3% 10 mph NW 61%
7 PM 23° Clear 3% 10 mph NW 61%
8 PM 22° Clear 3% 9 mph NW 62%
15-Day Forecast
Today
8/21
Clear
3%
15°
27°
Sat
8/22
Clear
14%
14°
27°
Sun
8/23
Clear
3%
12°
24°
Mon
8/24
Mostly Cloudy
44%
11°
23°
Tue
8/25
Drizzle
64%
13°
26°
Wed
8/26
Rain
64%
16°
28°
Thu
8/27
Clear
8%
15°
27°
Fri
8/28
Clear
17%
16°
27°
Sat
8/29
Rain
68%
16°
28°
Sun
8/30
Thunderstorm
68%
18°
29°
Mon
8/31
Drizzle
60%
16°
28°
Tue
9/1
Drizzle
60%
17°
28°
Wed
9/2
Drizzle
60%
17°
28°
Thu
9/3
Clear
60%
16°
27°
Fri
9/4
Drizzle
60%
16°
28°
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
28 AQI 5.1 µg/m³
O3
Ground-level ozone
Dominant
31 AQI 33 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 31 Good 31 28
Sun 27 Good 27 25
Mon 26 Good 26 12
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 Fri Aug 21, 23:00'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
SBCAPE446 J/kg
MLCAPE706 J/kg
MUCAPE1038 J/kg
SBCIN-193 J/kg
MLCIN-64 J/kg
Lifted Index-0.9
Kinematics
0–6 km Shear22 kt
0–1 km Shear14 kt
Eff. Shear22 kt
0–1 km SRH50
0–3 km SRH85
Eff. SRH85
Storm Motion348° @ 25 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell1.0
K-Index26.9
Thermo & Levels
PWAT1.21 in
0–3 km LR5.6 °C/km
700–500 LR5.9 °C/km
Total Totals48.1
LCL920 hPa
LFC627 hPa
EL247 hPa
Freezing Lvl12,756 ft