Flood Warning — Brookings County, SD, Hamlin County, SD Flood Warning — Brookings County, SD

Brookings County, South Dakota, United States

Last updated: 9:34 PM CDT  ·  Refresh
29°C
Feels like 31°
Clear
▲ 34°  /  ▼ 17°
Wind
8 mph NNE
Humidity
58%
Dew Point
21°
Pressure
28.16 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
8%
Sunrise
5:58 AM
Sunset
9:07 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Brookings County is currently clear at 29°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2289 J/kg) — isolated convective development possible. Sunrise: 5:58AM · Sunset: 9:07PM.

Alerts

Flood Warning
Brookings County, SD, Hamlin County, SD
Expires
Flood Warning
Brookings County, SD
Expires
51 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
29°
4%
10 PM
27°
3%
11 PM
26°
3%
12 AM
24°
3%
1 AM
23°
3%
2 AM
22°
3%
3 AM
22°
3%
4 AM
21°
3%
5 AM
18°
3%
6 AM
17°
3%
7 AM
18°
3%
8 AM
20°
3%
9 AM
22°
3%
10 AM
23°
3%
11 AM
25°
3%
12 PM
27°
3%
1 PM
29°
3%
2 PM
30°
3%
3 PM
31°
3%
4 PM
30°
3%
5 PM
31°
3%
6 PM
31°
3%
7 PM
29°
3%
8 PM
27°
3%
7-Day Forecast
Tonight
34° 17°
Clear.
Sat
32° 17°
Mostly Clear.
Sun
33° 17°
Partly Cloudy.
Mon
37° 19°
Mostly Clear with a 24% chance of rain.
Tue
28° 13°
Clear.
Wed
28° 11°
Clear.
Thu
27° 13°
Clear with a 28% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 29° Clear 4% 8 mph NNE 58%
10 PM 27° Clear 3% 11 mph NE 63%
11 PM 26° Clear 3% 11 mph NE 63%
12 AM 24° Clear 3% 10 mph NE 64%
1 AM 23° Mostly Clear 3% 9 mph NE 66%
2 AM 22° Mostly Clear 3% 8 mph NE 70%
3 AM 22° Mostly Clear 3% 8 mph NE 72%
4 AM 21° Partly Cloudy 3% 8 mph NE 74%
5 AM 18° Partly Cloudy 3% 8 mph NE 75%
6 AM 17° Partly Cloudy 3% 8 mph NE 77%
7 AM 18° Partly Cloudy 3% 9 mph NE 72%
8 AM 20° Partly Cloudy 3% 10 mph ENE 63%
9 AM 22° Partly Cloudy 3% 11 mph ENE 53%
10 AM 23° Mostly Clear 3% 10 mph ENE 46%
11 AM 25° Clear 3% 10 mph ENE 39%
12 PM 27° Clear 3% 10 mph ENE 34%
1 PM 29° Clear 3% 10 mph NE 30%
2 PM 30° Clear 3% 10 mph ENE 29%
3 PM 31° Mostly Clear 3% 9 mph ENE 27%
4 PM 30° Mostly Clear 3% 9 mph ENE 28%
5 PM 31° Mostly Clear 3% 10 mph ENE 29%
6 PM 31° Mostly Clear 3% 10 mph ENE 30%
7 PM 29° Partly Cloudy 3% 9 mph ENE 35%
8 PM 27° Partly Cloudy 3% 8 mph ENE 42%
15-Day Forecast
Today
7/17
Clear
4%
17°
34°
Sat
7/18
Mostly Clear
3%
17°
32°
Sun
7/19
Partly Cloudy
14%
17°
33°
Mon
7/20
Mostly Clear
24%
19°
37°
Tue
7/21
Clear
3%
13°
28°
Wed
7/22
Clear
17%
11°
28°
Thu
7/23
Clear
28%
13°
27°
Fri
7/24
Rain
28%
14°
26°
Sat
7/25
Drizzle
44%
13°
31°
Sun
7/26
Rain
68%
15°
31°
Mon
7/27
Clear
60%
14°
31°
Tue
7/28
Drizzle
60%
19°
33°
Wed
7/29
Drizzle
60%
19°
33°
Thu
7/30
Drizzle
60%
19°
32°
Fri
7/31
Drizzle
60%
19°
32°
51
Moderate
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
51 AQI 9.1 µg/m³
O3
Ground-level ozone
47 AQI 52 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 51 Moderate 47 51
Sun 40 Good 40 35
Mon 45 Good 38 45
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 Sat Jul 18, 01:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1962 J/kg
MLCAPE3263 J/kg
MUCAPE4148 J/kg
SBCIN-176 J/kg
MLCIN0 J/kg
Lifted Index-4.8
Kinematics
0–6 km Shear17 kt
0–1 km Shear6 kt
Eff. Shear23 kt
0–1 km SRH-14
0–3 km SRH-26
Eff. SRH-26
Storm Motion247° @ 15 kt
0–1 km EHI-0.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index39.6
Thermo & Levels
PWAT1.82 in
0–3 km LR6.8 °C/km
700–500 LR6.0 °C/km
Total Totals51.9
LCL846 hPa
LFC735 hPa
EL170 hPa
Freezing Lvl14,629 ft