Flood Watch 3:00 AM

Des Moines, Iowa

Last updated: 10:05 AM CDT  ·  Refresh
18°C
Feels like 18°
Overcast
▲ 18°  /  ▼ 13°
Wind
8 mph NNE
Humidity
96%
Dew Point
17°
Pressure
29.05 inHg
Visibility
9 mi
UV Index
2.9
Cloud Cover
89%
Sunrise
6:58 AM
Sunset
7:14 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Des Moines is currently overcast at 18°C. Precipitation is likely — peak probability 86% around 9 AM. Sunrise: 6:58AM · Sunset: 7:14PM.

Alerts

Flood Watch
Expires 3:00 AM
16 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
18°
47%
11 AM
17°
51%
12 PM
17°
46%
1 PM
17°
41%
2 PM
18°
51%
3 PM
17°
50%
4 PM
17°
49%
5 PM
17°
49%
6 PM
18°
49%
7 PM
17°
35%
8 PM
17°
44%
9 PM
17°
53%
10 PM
17°
62%
11 PM
16°
62%
12 AM
16°
62%
1 AM
16°
67%
2 AM
16°
70%
3 AM
15°
82%
4 AM
15°
75%
5 AM
14°
78%
6 AM
14°
82%
7 AM
14°
83%
8 AM
14°
83%
9 AM
14°
86%
7-Day Forecast
Today
18° 13°
Overcast with a 62% chance of rain.
Mon
16° 13°
Overcast with a 86% chance of rain.
Tue
16° 10°
Partly Cloudy with a 27% chance of rain.
Wed
20° 9°
Overcast.
Thu
21° 11°
Clear.
Fri
21° 14°
Clear with a 42% chance of rain.
Sat
22° 12°
Drizzle, 63% chance.
TimeTempConditionsPrecipWindHumidity
Now 18° Overcast 47% 8 mph NNE 96%
11 AM 17° Overcast 51% 10 mph NNE 94%
12 PM 17° Overcast 46% 11 mph NE 92%
1 PM 17° Overcast 41% 11 mph NE 91%
2 PM 18° Overcast 51% 11 mph NE 91%
3 PM 17° Overcast 50% 11 mph NE 90%
4 PM 17° Overcast 49% 10 mph NE 89%
5 PM 17° Overcast 49% 9 mph ENE 90%
6 PM 18° Overcast 49% 9 mph ENE 91%
7 PM 17° Overcast 35% 8 mph ENE 92%
8 PM 17° Overcast 44% 10 mph ENE 92%
9 PM 17° Overcast 53% 10 mph ENE 92%
10 PM 17° Overcast 62% 11 mph ENE 92%
11 PM 16° Overcast 62% 10 mph ENE 92%
12 AM 16° Overcast 62% 10 mph ENE 92%
1 AM 16° Overcast 67% 10 mph ENE 89%
2 AM 16° Overcast 70% 10 mph ENE 90%
3 AM 15° Overcast 82% 10 mph ENE 90%
4 AM 15° Overcast 75% 10 mph ENE 91%
5 AM 14° Rain 78% 10 mph ENE 92%
6 AM 14° Rain 82% 10 mph ENE 92%
7 AM 14° Rain 83% 10 mph ENE 93%
8 AM 14° Rain 83% 10 mph ENE 93%
9 AM 14° Rain 86% 10 mph NE 94%
15-Day Forecast
Today
9/20
Overcast
62%
13°
18°
Mon
9/21
Overcast
86%
13°
16°
Tue
9/22
Partly Cloudy
27%
10°
16°
Wed
9/23
Overcast
3%
9°
20°
Thu
9/24
Clear
16%
11°
21°
Fri
9/25
Clear
42%
14°
21°
Sat
9/26
Drizzle
63%
12°
22°
Sun
9/27
Drizzle
43%
12°
23°
Mon
9/28
Drizzle
44%
13°
24°
Tue
9/29
Drizzle
51%
14°
22°
Wed
9/30
Drizzle
60%
13°
23°
Thu
10/1
Drizzle
60%
13°
22°
Fri
10/2
Drizzle
60%
12°
22°
Sat
10/3
Drizzle
60%
11°
21°
Sun
10/4
Drizzle
60%
11°
21°
16
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
9 AQI 1.8 µg/m³
O3
Ground-level ozone
Dominant
16 AQI 18 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 16 Good 16 9
Tue 17 Good 17 9
Wed 15 Good 15 9
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 20, 13:00'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
SBCAPE5 J/kg
MLCAPE11 J/kg
MUCAPE2 J/kg
SBCIN-1 J/kg
MLCIN0 J/kg
Lifted Index4.6
Kinematics
0–6 km Shear15 kt
0–1 km Shear11 kt
Eff. Shear—
0–1 km SRH-22
0–3 km SRH53
Eff. SRH—
Storm Motion341° @ 20 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index21.8
Thermo & Levels
PWAT1.52 in
0–3 km LR3.2 °C/km
700–500 LR6.2 °C/km
Total Totals41.3
LCL975 hPa
LFC964 hPa
EL892 hPa
Freezing Lvl13,504 ft