Severe Thunderstorm Watch 5:00 AM

O'Brien County, Iowa, United States

Last updated: 2:04 AM CDT  ·  Refresh
19°C
Feels like 19°
Thunderstorm
▲ 32°  /  ▼ 19°
Wind
9 mph NNE
Humidity
94%
Dew Point
18°
Pressure
28.41 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
91%
Sunrise
6:48 AM
Sunset
7:55 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: O'Brien County is currently thunderstorm at 19°C. Precipitation is likely — peak probability 68% around 2 AM. Atmospheric instability is elevated (CAPE up to 1855 J/kg) — isolated convective development possible. Sunrise: 6:48AM · Sunset: 7:55PM.

Alerts

Severe Thunderstorm Watch
Expires 5:00 AM
46 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
19°
68%
3 AM
19°
51%
4 AM
18°
44%
5 AM
18°
27%
6 AM
17°
26%
7 AM
17°
11%
8 AM
18°
13%
9 AM
19°
8%
10 AM
21°
6%
11 AM
23°
6%
12 PM
26°
6%
1 PM
28°
7%
2 PM
30°
9%
3 PM
31°
12%
4 PM
32°
21%
5 PM
31°
22%
6 PM
32°
18%
7 PM
31°
18%
8 PM
29°
18%
9 PM
27°
25%
10 PM
23°
28%
11 PM
23°
34%
12 AM
23°
39%
1 AM
21°
44%
7-Day Forecast
Today
32° 19°
Mostly Clear with a 68% chance of rain.
Thu
37° 19°
Mostly Clear with a 44% chance of rain.
Fri
38° 21°
Clear with a 32% chance of rain.
Sat
37° 19°
Mostly Clear with a 66% chance of rain.
Sun
37° 18°
Drizzle, 71% chance.
Mon
35° 19°
Rain, 82% chance.
Tue
34° 18°
Drizzle, 53% chance.
TimeTempConditionsPrecipWindHumidity
Now 19° Thunderstorm 68% 9 mph NNE 94%
3 AM 19° Rain 51% 8 mph E 93%
4 AM 18° Partly Cloudy 44% 9 mph ESE 95%
5 AM 18° Mostly Clear 27% 8 mph ESE 96%
6 AM 17° Mostly Clear 26% 7 mph ESE 96%
7 AM 17° Mostly Clear 11% 6 mph ESE 96%
8 AM 18° Mostly Clear 13% 6 mph ESE 91%
9 AM 19° Mostly Clear 8% 7 mph ESE 85%
10 AM 21° Mostly Clear 6% 7 mph ESE 78%
11 AM 23° Mostly Clear 6% 6 mph SE 68%
12 PM 26° Clear 6% 7 mph SSE 59%
1 PM 28° Clear 7% 7 mph SSE 50%
2 PM 30° Clear 9% 8 mph SSE 47%
3 PM 31° Clear 12% 8 mph S 44%
4 PM 32° Clear 21% 10 mph S 42%
5 PM 31° Mostly Clear 22% 9 mph S 44%
6 PM 32° Mostly Clear 18% 8 mph S 46%
7 PM 31° Partly Cloudy 18% 7 mph S 51%
8 PM 29° Mostly Clear 18% 7 mph SSE 60%
9 PM 27° Mostly Clear 25% 8 mph SE 70%
10 PM 23° Clear 28% 8 mph SE 78%
11 PM 23° Mostly Clear 34% 7 mph SE 78%
12 AM 23° Partly Cloudy 39% 7 mph SSE 78%
1 AM 21° Mostly Cloudy 44% 6 mph SSE 78%
15-Day Forecast
Today
9/2
Mostly Clear
68%
19°
32°
Thu
9/3
Mostly Clear
44%
19°
37°
Fri
9/4
Clear
32%
21°
38°
Sat
9/5
Mostly Clear
66%
19°
37°
Sun
9/6
Drizzle
71%
18°
37°
Mon
9/7
Rain
82%
19°
35°
Tue
9/8
Drizzle
53%
18°
34°
Wed
9/9
Drizzle
72%
13°
29°
Thu
9/10
Drizzle
44%
13°
29°
Fri
9/11
Drizzle
51%
13°
32°
Sat
9/12
Clear
60%
16°
31°
Sun
9/13
Drizzle
60%
16°
29°
Mon
9/14
Drizzle
60%
15°
28°
Tue
9/15
Drizzle
60%
15°
28°
Wed
9/16
Drizzle
60%
14°
28°
46
Good
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
46 AQI 8.2 µg/m³
O3
Ground-level ozone
37 AQI 40 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 46 Good 37 46
Thu 44 Good 44 39
Fri 42 Good 42 34
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 LCL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Wed Sep 2, 05:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE592 J/kg
MUCAPE1768 J/kg
SBCIN—
MLCIN-136 J/kg
Lifted Index1.7
Kinematics
0–6 km Shear45 kt
0–1 km Shear12 kt
Eff. Shear45 kt
0–1 km SRH65
0–3 km SRH211
Eff. SRH247
Storm Motion270° @ 32 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.3
Supercell10.1
K-Index40.2
Thermo & Levels
PWAT2.10 in
0–3 km LR4.4 °C/km
700–500 LR5.7 °C/km
Total Totals50.0
LCL944 hPa
LFC—
EL—
Freezing Lvl13,392 ft