Severe Thunderstorm Watch 5:00 AM Severe Thunderstorm Watch 5:00 AM

Plymouth County, Iowa, United States

Last updated: 3:04 AM CDT  ·  Refresh
21°C
Feels like 19°
Rain
▲ 34°  /  ▼ 19°
Wind
14 mph NE
Humidity
90%
Dew Point
19°
Pressure
28.60 inHg
Visibility
3 mi
UV Index
0.0
Cloud Cover
78%
Sunrise
6:50 AM
Sunset
7:57 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Plymouth County is currently rain at 21°C. Precipitation is likely — peak probability 73% around 3 AM. Atmospheric instability is elevated (CAPE up to 1892 J/kg) — isolated convective development possible. Sunrise: 6:50AM · Sunset: 7:57PM.

Alerts

Severe Thunderstorm Watch
Expires 5:00 AM
Severe Thunderstorm Watch
Expires 5:00 AM
41 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
21°
73%
4 AM
21°
48%
5 AM
21°
48%
6 AM
18°
29%
7 AM
18°
7%
8 AM
19°
7%
9 AM
21°
7%
10 AM
22°
4%
11 AM
24°
4%
12 PM
27°
5%
1 PM
29°
3%
2 PM
32°
5%
3 PM
33°
8%
4 PM
34°
17%
5 PM
33°
17%
6 PM
34°
18%
7 PM
33°
18%
8 PM
31°
30%
9 PM
29°
36%
10 PM
26°
36%
11 PM
25°
41%
12 AM
24°
39%
1 AM
24°
39%
2 AM
22°
44%
7-Day Forecast
Today
34° 19°
Clear with a 73% chance of rain.
Thu
38° 19°
Mostly Clear with a 44% chance of rain.
Fri
38° 22°
Mostly Clear with a 28% chance of rain.
Sat
38° 21°
Mostly Clear with a 49% chance of rain.
Sun
38° 21°
Drizzle, 64% chance.
Mon
38° 20°
Rain, 82% chance.
Tue
35° 19°
Clear with a 53% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 21° Rain 73% 14 mph NE 90%
4 AM 21° Mostly Cloudy 48% 8 mph SE 90%
5 AM 21° Mostly Cloudy 48% 4 mph SE 92%
6 AM 18° Partly Cloudy 29% 4 mph SSE 94%
7 AM 18° Clear 7% 5 mph SSE 94%
8 AM 19° Clear 7% 5 mph SE 88%
9 AM 21° Clear 7% 7 mph SE 80%
10 AM 22° Clear 4% 8 mph SE 71%
11 AM 24° Clear 4% 8 mph SSE 61%
12 PM 27° Clear 5% 8 mph SSE 52%
1 PM 29° Clear 3% 9 mph S 43%
2 PM 32° Clear 5% 9 mph S 40%
3 PM 33° Clear 8% 10 mph S 38%
4 PM 34° Clear 17% 10 mph S 36%
5 PM 33° Mostly Clear 17% 9 mph S 37%
6 PM 34° Mostly Clear 18% 8 mph S 38%
7 PM 33° Partly Cloudy 18% 7 mph S 42%
8 PM 31° Partly Cloudy 30% 6 mph S 50%
9 PM 29° Partly Cloudy 36% 6 mph SSE 58%
10 PM 26° Partly Cloudy 36% 6 mph SSE 65%
11 PM 25° Partly Cloudy 41% 7 mph SSE 69%
12 AM 24° Partly Cloudy 39% 8 mph SSE 73%
1 AM 24° Rain 39% 8 mph S 77%
2 AM 22° Rain 44% 5 mph SSE 79%
15-Day Forecast
Today
9/2
Clear
73%
19°
34°
Thu
9/3
Mostly Clear
44%
19°
38°
Fri
9/4
Mostly Clear
28%
22°
38°
Sat
9/5
Mostly Clear
49%
21°
38°
Sun
9/6
Drizzle
64%
21°
38°
Mon
9/7
Rain
82%
20°
38°
Tue
9/8
Clear
53%
19°
35°
Wed
9/9
Drizzle
72%
15°
30°
Thu
9/10
Drizzle
44%
16°
29°
Fri
9/11
Drizzle
68%
14°
32°
Sat
9/12
Drizzle
60%
16°
30°
Sun
9/13
Drizzle
60%
16°
29°
Mon
9/14
Clear
60%
15°
29°
Tue
9/15
Drizzle
60%
16°
29°
Wed
9/16
Drizzle
60%
14°
29°
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
34 AQI 6.1 µg/m³
O3
Ground-level ozone
Dominant
41 AQI 45 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 41 Good 41 34
Thu 43 Good 43 35
Fri 46 Good 46 32
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 Wed Sep 2, 06:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE7 J/kg
MLCAPE989 J/kg
MUCAPE2131 J/kg
SBCIN-404 J/kg
MLCIN-130 J/kg
Lifted Index0.0
Kinematics
0–6 km Shear37 kt
0–1 km Shear23 kt
Eff. Shear27 kt
0–1 km SRH93
0–3 km SRH198
Eff. SRH160
Storm Motion276° @ 32 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.2
Supercell4.7
K-Index43.5
Thermo & Levels
PWAT2.18 in
0–3 km LR4.3 °C/km
700–500 LR6.3 °C/km
Total Totals53.3
LCL941 hPa
LFC609 hPa
EL501 hPa
Freezing Lvl13,484 ft