Areal Flood Advisory — Baker County, FL, Duval County, FL, Nassau County, FL, Charlton County, GA 5:30 PM Areal Flood Advisory — Nassau County, FL, Camden County, GA 5:30 PM Areal Flood Advisory — Baker County, FL, Nassau County, FL, Charlton County, GA 7:30 PM Flood Watch 7:00 AM

Nassau County, Florida, United States

Last updated: 4:58 PM CDT  ·  Refresh
27°C
Feels like 30°
Mostly Cloudy
▲ 27°  /  ▼ 21°
Wind
4 mph ENE
Humidity
85%
Dew Point
24°
Pressure
30.01 inHg
Visibility
10 mi
UV Index
2.7
Cloud Cover
76%
Sunrise
7:22 AM
Sunset
7:08 PM
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WeatherAI™ Analysis

WeatherAI Analysis: Nassau County is currently mostly cloudy at 27°C. Precipitation is likely — peak probability 81% around 7 PM. Atmospheric instability is elevated (CAPE up to 1003 J/kg) — isolated convective development possible. Sunrise: 7:22AM · Sunset: 7:08PM.

Alerts

Areal Flood Advisory
Baker County, FL, Duval County, FL, Nassau County, FL, Charlton County, GA
Expires 5:30 PM
Areal Flood Advisory
Nassau County, FL, Camden County, GA
Expires 5:30 PM
Areal Flood Advisory
Baker County, FL, Nassau County, FL, Charlton County, GA
Expires 7:30 PM
Flood Watch
Expires 7:00 AM
24 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
27°
56%
6 PM
26°
77%
7 PM
25°
81%
8 PM
25°
68%
9 PM
23°
66%
10 PM
23°
46%
11 PM
23°
69%
12 AM
23°
51%
1 AM
23°
52%
2 AM
23°
42%
3 AM
23°
42%
4 AM
23°
42%
5 AM
21°
42%
6 AM
21°
48%
7 AM
21°
72%
8 AM
22°
72%
9 AM
24°
55%
10 AM
26°
64%
11 AM
25°
64%
12 PM
24°
64%
1 PM
26°
64%
2 PM
26°
71%
3 PM
26°
71%
4 PM
26°
71%
7-Day Forecast
Today
27° 21°
Mostly Cloudy with a 69% chance of rain.
Mon
26° 21°
Mostly Cloudy with a 78% chance of rain.
Tue
25° 20°
Overcast with a 66% chance of rain.
Wed
26° 20°
Thunderstorm, 48% chance.
Thu
27° 19°
Drizzle, 60% chance.
Fri
27° 20°
Rain, 81% chance.
Sat
27° 21°
Rain, 90% chance.
TimeTempConditionsPrecipWindHumidity
Now 27° Mostly Cloudy 56% 4 mph ENE 85%
6 PM 26° Mostly Cloudy 77% 4 mph ENE 88%
7 PM 25° Rain 81% 4 mph ESE 92%
8 PM 25° Rain 68% 3 mph NNE 93%
9 PM 23° Overcast 66% 2 mph NNE 95%
10 PM 23° Overcast 46% 2 mph NE 96%
11 PM 23° Overcast 69% 2 mph NNE 96%
12 AM 23° Overcast 51% 2 mph NNE 96%
1 AM 23° Overcast 52% 2 mph N 96%
2 AM 23° Overcast 42% 2 mph NNE 96%
3 AM 23° Overcast 42% 2 mph N 96%
4 AM 23° Overcast 42% 2 mph NNW 96%
5 AM 21° Mostly Cloudy 42% 2 mph NNW 96%
6 AM 21° Overcast 48% 3 mph NNW 96%
7 AM 21° Rain 72% 2 mph N 96%
8 AM 22° Mostly Cloudy 72% 3 mph NNE 89%
9 AM 24° Mostly Cloudy 55% 3 mph NE 80%
10 AM 26° Partly Cloudy 64% 3 mph NE 72%
11 AM 25° Mostly Cloudy 64% 3 mph NE 74%
12 PM 24° Mostly Cloudy 64% 4 mph NE 76%
1 PM 26° Mostly Cloudy 64% 5 mph NE 79%
2 PM 26° Mostly Cloudy 71% 6 mph NE 82%
3 PM 26° Overcast 71% 7 mph NE 84%
4 PM 26° Overcast 71% 8 mph NE 87%
15-Day Forecast
Today
10/4
Mostly Cloudy
69%
21°
27°
Mon
10/5
Mostly Cloudy
78%
21°
26°
Tue
10/6
Overcast
66%
20°
25°
Wed
10/7
Thunderstorm
48%
20°
26°
Thu
10/8
Drizzle
60%
19°
27°
Fri
10/9
Rain
81%
20°
27°
Sat
10/10
Rain
90%
21°
27°
Sun
10/11
Rain
79%
21°
30°
Mon
10/12
Rain
90%
22°
31°
Tue
10/13
Rain
90%
21°
31°
Wed
10/14
Drizzle
75%
21°
27°
Thu
10/15
Drizzle
60%
19°
27°
Fri
10/16
Drizzle
60%
18°
25°
Sat
10/17
Drizzle
60%
18°
24°
Sun
10/18
Drizzle
60%
17°
25°
24
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
15 AQI 2.7 µg/m³
O3
Ground-level ozone
Dominant
24 AQI 27 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 24 Good 24 15
Tue 23 Good 23 11
Wed 37 Good 37 20
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 Oct 4, 20:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1750 J/kg
MLCAPE559 J/kg
MUCAPE1750 J/kg
SBCIN-0 J/kg
MLCIN-6 J/kg
Lifted Index-4.2
Kinematics
0–6 km Shear16 kt
0–1 km Shear10 kt
Eff. Shear13 kt
0–1 km SRH15
0–3 km SRH53
Eff. SRH53
Storm Motion257° @ 23 kt
0–1 km EHI0.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index33.5
Thermo & Levels
PWAT2.36 in
0–3 km LR6.0 °C/km
700–500 LR5.0 °C/km
Total Totals41.1
LCL974 hPa
LFC1016 hPa
EL150 hPa
Freezing Lvl15,768 ft