Severe Thunderstorm Watch 8:00 PM

Gwinnett County, Georgia, United States

Last updated: 5:15 PM CDT  ·  Refresh
34°C
Feels like 38°
Mostly Clear
▲ 34°  /  ▼ 24°
Wind
6 mph ESE
Humidity
49%
Dew Point
22°
Pressure
29.00 inHg
Visibility
10 mi
UV Index
5.9
Cloud Cover
24%
Sunrise
6:28 AM
Sunset
8:51 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Gwinnett County is currently mostly clear at 34°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 3001 J/kg) — isolated convective development possible. Sunrise: 6:28AM · Sunset: 8:51PM.

Alerts

Severe Thunderstorm Watch
Expires 8:00 PM
44 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
34°
24%
7 PM
34°
39%
8 PM
33°
39%
9 PM
31°
24%
10 PM
29°
24%
11 PM
28°
16%
12 AM
27°
16%
1 AM
27°
9%
2 AM
26°
4%
3 AM
25°
5%
4 AM
24°
5%
5 AM
24°
5%
6 AM
24°
5%
7 AM
24°
5%
8 AM
25°
5%
9 AM
27°
5%
10 AM
29°
5%
11 AM
31°
5%
12 PM
32°
5%
1 PM
34°
5%
2 PM
36°
5%
3 PM
36°
9%
4 PM
36°
9%
5 PM
36°
9%
7-Day Forecast
Tonight
34° 24°
Mostly Clear with a 24% chance of rain.
Thu
38° 24°
Partly Cloudy.
Fri
38° 23°
Partly Cloudy with a 32% chance of rain.
Sat
37° 24°
Partly Cloudy.
Sun
37° 23°
Rain, 64% chance.
Mon
35° 22°
Rain, 64% chance.
Tue
36° 24°
Drizzle, 52% chance.
TimeTempConditionsPrecipWindHumidity
Now 34° Mostly Clear 24% 6 mph ESE 49%
7 PM 34° Mostly Clear 39% 5 mph ESE 54%
8 PM 33° Mostly Clear 39% 4 mph ESE 58%
9 PM 31° Mostly Clear 24% 3 mph E 63%
10 PM 29° Mostly Clear 24% 3 mph ENE 67%
11 PM 28° Mostly Clear 16% 4 mph NE 70%
12 AM 27° Mostly Clear 16% 3 mph N 71%
1 AM 27° Mostly Clear 9% 3 mph NW 73%
2 AM 26° Mostly Clear 4% 2 mph WNW 74%
3 AM 25° Partly Cloudy 5% 2 mph W 77%
4 AM 24° Mostly Cloudy 5% 2 mph SE 80%
5 AM 24° Mostly Cloudy 5% 2 mph S 81%
6 AM 24° Partly Cloudy 5% 2 mph SSW 80%
7 AM 24° Partly Cloudy 5% 2 mph SW 79%
8 AM 25° Partly Cloudy 5% 2 mph WSW 76%
9 AM 27° Partly Cloudy 5% 3 mph W 68%
10 AM 29° Partly Cloudy 5% 2 mph WNW 61%
11 AM 31° Partly Cloudy 5% 2 mph N 54%
12 PM 32° Partly Cloudy 5% 2 mph ENE 49%
1 PM 34° Partly Cloudy 5% 3 mph E 44%
2 PM 36° Partly Cloudy 5% 4 mph E 42%
3 PM 36° Partly Cloudy 9% 4 mph ESE 41%
4 PM 36° Partly Cloudy 9% 5 mph ESE 40%
5 PM 36° Partly Cloudy 9% 5 mph SE 40%
15-Day Forecast
Today
7/1
Mostly Clear
24%
24°
34°
Thu
7/2
Partly Cloudy
16%
24°
38°
Fri
7/3
Partly Cloudy
32%
23°
38°
Sat
7/4
Partly Cloudy
17%
24°
37°
Sun
7/5
Rain
64%
23°
37°
Mon
7/6
Rain
64%
22°
35°
Tue
7/7
Drizzle
52%
24°
36°
Wed
7/8
Drizzle
53%
24°
36°
Thu
7/9
Partly Cloudy
44%
24°
35°
Fri
7/10
Rain
68%
23°
35°
Sat
7/11
Drizzle
64%
23°
35°
Sun
7/12
Drizzle
60%
24°
36°
Mon
7/13
Drizzle
60%
24°
35°
Tue
7/14
Drizzle
60%
24°
35°
Wed
7/15
Drizzle
60%
23°
34°
44
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
44 AQI 7.9 µg/m³
O3
Ground-level ozone
43 AQI 47 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Thu 44 Good 43 44
Fri 54 Moderate 54 51
Sat 47 Good 43 47
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 Jul 1, 21:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE3538 J/kg
MLCAPE3422 J/kg
MUCAPE3629 J/kg
SBCIN-0 J/kg
MLCIN-0 J/kg
Lifted Index-9.2
Kinematics
0–6 km Shear20 kt
0–1 km Shear4 kt
Eff. Shear13 kt
0–1 km SRH-9
0–3 km SRH-19
Eff. SRH-19
Storm Motion52° @ 26 kt
0–1 km EHI-0.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index36.1
Thermo & Levels
PWAT1.75 in
0–3 km LR8.0 °C/km
700–500 LR6.8 °C/km
Total Totals55.0
LCL829 hPa
LFC969 hPa
EL155 hPa
Freezing Lvl14,948 ft