Severe Thunderstorm Watch 12:00 AM

Nelson County, North Dakota, United States

Last updated: 9:02 PM CDT  ·  Refresh
29°C
Feels like 32°
Mostly Clear
▲ 32°  /  ▼ 19°
Wind
9 mph SSE
Humidity
67%
Dew Point
21°
Pressure
28.30 inHg
Visibility
10 mi
UV Index
0.9
Cloud Cover
14%
Sunrise
5:50 AM
Sunset
9:26 PM
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WeatherAI™ Analysis

WeatherAI Analysis: Nelson County is currently mostly clear at 29°C. Precipitation is likely — peak probability 53% around 11 PM. Atmospheric instability is elevated (CAPE up to 2259 J/kg) — isolated convective development possible. Sunrise: 5:50AM · Sunset: 9:26PM.

Alerts

Severe Thunderstorm Watch
Expires 12:00 AM
41 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
29°
28%
10 PM
27°
47%
11 PM
26°
53%
12 AM
24°
50%
1 AM
24°
18%
2 AM
23°
4%
3 AM
23°
4%
4 AM
23°
3%
5 AM
22°
14%
6 AM
19°
14%
7 AM
19°
3%
8 AM
20°
3%
9 AM
21°
3%
10 AM
22°
3%
11 AM
22°
3%
12 PM
23°
3%
1 PM
24°
3%
2 PM
27°
3%
3 PM
27°
3%
4 PM
28°
3%
5 PM
28°
3%
6 PM
28°
3%
7 PM
28°
3%
8 PM
27°
3%
7-Day Forecast
Tonight
32° 19°
Mostly Clear with a 28% chance of rain.
Fri
29° 19°
Partly Cloudy with a 50% chance of rain.
Sat
31° 17°
Partly Cloudy.
Sun
33° 19°
Mostly Clear.
Mon
28° 14°
Clear.
Tue
23° 13°
Clear.
Wed
26° 11°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 29° Mostly Clear 28% 9 mph SSE 67%
10 PM 27° Partly Cloudy 47% 8 mph SE 71%
11 PM 26° Rain 53% 11 mph SW 71%
12 AM 24° Partly Cloudy 50% 9 mph SSE 72%
1 AM 24° Mostly Clear 18% 9 mph S 72%
2 AM 23° Mostly Clear 4% 8 mph S 74%
3 AM 23° Partly Cloudy 4% 8 mph SW 78%
4 AM 23° Partly Cloudy 3% 8 mph WSW 80%
5 AM 22° Mostly Cloudy 14% 8 mph WNW 84%
6 AM 19° Overcast 14% 10 mph NW 88%
7 AM 19° Mostly Cloudy 3% 11 mph NW 90%
8 AM 20° Mostly Cloudy 3% 11 mph NNW 88%
9 AM 21° Mostly Cloudy 3% 12 mph NNW 85%
10 AM 22° Mostly Cloudy 3% 13 mph NNW 82%
11 AM 22° Partly Cloudy 3% 13 mph NNW 78%
12 PM 23° Partly Cloudy 3% 13 mph NNW 74%
1 PM 24° Partly Cloudy 3% 13 mph NNW 68%
2 PM 27° Partly Cloudy 3% 13 mph NNW 64%
3 PM 27° Partly Cloudy 3% 13 mph NNW 60%
4 PM 28° Mostly Clear 3% 13 mph NNW 57%
5 PM 28° Mostly Clear 3% 12 mph NNW 58%
6 PM 28° Mostly Clear 3% 12 mph NNW 58%
7 PM 28° Mostly Clear 3% 11 mph NNW 59%
8 PM 27° Clear 3% 10 mph NNW 64%
15-Day Forecast
Today
7/16
Mostly Clear
28%
19°
32°
Fri
7/17
Partly Cloudy
50%
19°
29°
Sat
7/18
Partly Cloudy
7%
17°
31°
Sun
7/19
Mostly Clear
14%
19°
33°
Mon
7/20
Clear
8%
14°
28°
Tue
7/21
Clear
3%
13°
23°
Wed
7/22
Clear
8%
11°
26°
Thu
7/23
Clear
8%
14°
29°
Fri
7/24
Clear
18%
17°
31°
Sat
7/25
Drizzle
44%
17°
36°
Sun
7/26
Drizzle
36%
17°
39°
Mon
7/27
Drizzle
60%
16°
39°
Tue
7/28
Drizzle
60%
17°
31°
Wed
7/29
Drizzle
60%
18°
32°
Thu
7/30
Drizzle
60%
17°
31°
41
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
40 AQI 7.2 µg/m³
O3
Ground-level ozone
Dominant
41 AQI 45 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 41 Good 41 40
Sat 39 Good 35 39
Sun 76 Moderate 44 76
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 Jul 16, 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
SBCAPE2235 J/kg
MLCAPE2631 J/kg
MUCAPE3452 J/kg
SBCIN-122 J/kg
MLCIN0 J/kg
Lifted Index-6.1
Kinematics
0–6 km Shear32 kt
0–1 km Shear11 kt
Eff. Shear36 kt
0–1 km SRH52
0–3 km SRH-5
Eff. SRH-5
Storm Motion235° @ 25 kt
0–1 km EHI0.7
Composite Parameters
Sig. Tornado0.4
STP (eff)0.0
Supercell0.0
K-Index43.5
Thermo & Levels
PWAT2.05 in
0–3 km LR6.7 °C/km
700–500 LR6.2 °C/km
Total Totals53.8
LCL859 hPa
LFC776 hPa
EL181 hPa
Freezing Lvl14,183 ft