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: 5:23 PM CDT  ·  Refresh
26°C
Feels like 30°
Haze
▲ 27°  /  ▼ 21°
Wind
3 mph NE
Humidity
87%
Dew Point
24°
Pressure
30.01 inHg
Visibility
1 mi
UV Index
1.7
Cloud Cover
84%
Sunrise
7:22 AM
Sunset
7:08 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Nassau County is currently haze at 26°C. Precipitation is likely — peak probability 81% around 7 PM. Atmospheric instability is elevated (CAPE up to 931 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
26°
70%
7 PM
26°
80%
8 PM
25°
77%
9 PM
25°
75%
10 PM
23°
74%
11 PM
23°
54%
12 AM
23°
69%
1 AM
23°
69%
2 AM
23°
41%
3 AM
23°
42%
4 AM
23°
67%
5 AM
23°
42%
6 AM
21°
42%
7 AM
21°
48%
8 AM
21°
50%
9 AM
22°
50%
10 AM
25°
34%
11 AM
26°
43%
12 PM
26°
43%
1 PM
25°
44%
2 PM
27°
52%
3 PM
26°
52%
4 PM
26°
52%
5 PM
26°
62%
7-Day Forecast
Tonight
27° 21°
Haze with a 75% chance of rain.
Mon
27° 21°
Mostly Cloudy with a 78% chance of rain.
Tue
24° 20°
Overcast with a 68% 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 26° Haze 70% 3 mph NE 87%
7 PM 26° Overcast 80% 4 mph E 90%
8 PM 25° Rain 77% 3 mph NNE 93%
9 PM 25° Rain 75% 3 mph NNE 94%
10 PM 23° Overcast 74% 2 mph NNE 95%
11 PM 23° Overcast 54% 2 mph NE 96%
12 AM 23° Overcast 69% 2 mph NNE 96%
1 AM 23° Overcast 69% 2 mph NNE 96%
2 AM 23° Overcast 41% 2 mph NNE 96%
3 AM 23° Overcast 42% 2 mph N 96%
4 AM 23° Overcast 67% 2 mph N 96%
5 AM 23° Overcast 42% 2 mph N 96%
6 AM 21° Overcast 42% 2 mph N 96%
7 AM 21° Overcast 48% 3 mph N 96%
8 AM 21° Mostly Cloudy 50% 3 mph NNE 94%
9 AM 22° Mostly Cloudy 50% 3 mph NNE 85%
10 AM 25° Mostly Cloudy 34% 3 mph NNE 77%
11 AM 26° Partly Cloudy 43% 3 mph NNE 72%
12 PM 26° Mostly Cloudy 43% 4 mph NNE 75%
1 PM 25° Mostly Cloudy 44% 5 mph NNE 78%
2 PM 27° Mostly Cloudy 52% 6 mph NNE 80%
3 PM 26° Overcast 52% 7 mph NNE 83%
4 PM 26° Overcast 52% 8 mph NNE 85%
5 PM 26° Overcast 62% 8 mph NNE 88%
15-Day Forecast
Today
10/4
Haze
75%
21°
27°
Mon
10/5
Mostly Cloudy
78%
21°
27°
Tue
10/6
Overcast
68%
20°
24°
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
81%
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%
19°
25°
Sat
10/17
Rain
90%
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, 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
SBCAPE871 J/kg
MLCAPE908 J/kg
MUCAPE1001 J/kg
SBCIN-10 J/kg
MLCIN-6 J/kg
Lifted Index-2.8
Kinematics
0–6 km Shear15 kt
0–1 km Shear9 kt
Eff. Shear15 kt
0–1 km SRH36
0–3 km SRH82
Eff. SRH82
Storm Motion279° @ 18 kt
0–1 km EHI0.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index35.9
Thermo & Levels
PWAT2.50 in
0–3 km LR5.6 °C/km
700–500 LR4.9 °C/km
Total Totals44.2
LCL987 hPa
LFC888 hPa
EL180 hPa
Freezing Lvl15,846 ft