Small Craft Advisory — Cape Spencer to Cape Fairweather from 15 to 85 NM, PK 8:00 PM

Cape Spencer to Cape Fairweather from 15 to 85 NM, PK

Last updated: 10:48 PM CDT  ·  Refresh
26°C
Feels like 30°
Clear
▲ 33°  /  ▼ 22°
Wind
2 mph NNW
Humidity
81%
Dew Point
23°
Pressure
29.94 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
1%
Sunrise
6:53 AM
Sunset
7:01 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Cape Spencer to Cape Fairweather from 15 to 85 NM is currently clear at 26°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1494 J/kg) — isolated convective development possible. Sunrise: 6:53AM · Sunset: 7:01PM.

Alerts

Small Craft Advisory
Cape Spencer to Cape Fairweather from 15 to 85 NM, PK
Expires 8:00 PM
47 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
26°
3%
11 PM
26°
7%
12 AM
25°
3%
1 AM
25°
3%
2 AM
24°
5%
3 AM
24°
5%
4 AM
24°
6%
5 AM
23°
3%
6 AM
22°
3%
7 AM
23°
3%
8 AM
25°
8%
9 AM
28°
8%
10 AM
29°
8%
11 AM
31°
17%
12 PM
33°
17%
1 PM
35°
17%
2 PM
36°
17%
3 PM
36°
8%
4 PM
35°
9%
5 PM
33°
9%
6 PM
33°
3%
7 PM
32°
3%
8 PM
32°
3%
9 PM
31°
3%
7-Day Forecast
Tonight
33° 22°
Clear.
Wed
36° 22°
Mostly Clear.
Thu
35° 23°
Mostly Cloudy.
Fri
34° 20°
Mostly Clear.
Sat
34° 21°
Mostly Clear.
Sun
35° 21°
Clear.
Mon
33° 21°
Drizzle, 43% chance.
TimeTempConditionsPrecipWindHumidity
Now 26° Clear 3% 2 mph NNW 81%
11 PM 26° Clear 7% 3 mph NNW 83%
12 AM 25° Clear 3% 4 mph NNW 86%
1 AM 25° Clear 3% 4 mph NNW 88%
2 AM 24° Clear 5% 4 mph NNW 90%
3 AM 24° Mostly Clear 5% 4 mph NNW 91%
4 AM 24° Mostly Clear 6% 3 mph NNW 90%
5 AM 23° Mostly Clear 3% 3 mph N 89%
6 AM 22° Mostly Clear 3% 4 mph N 87%
7 AM 23° Clear 3% 4 mph N 79%
8 AM 25° Mostly Clear 8% 5 mph NNE 72%
9 AM 28° Clear 8% 6 mph NNE 65%
10 AM 29° Mostly Clear 8% 6 mph NNE 59%
11 AM 31° Partly Cloudy 17% 7 mph NNE 53%
12 PM 33° Partly Cloudy 17% 8 mph NE 48%
1 PM 35° Partly Cloudy 17% 8 mph NE 44%
2 PM 36° Partly Cloudy 17% 9 mph NE 42%
3 PM 36° Partly Cloudy 8% 9 mph NE 40%
4 PM 35° Partly Cloudy 9% 9 mph NE 42%
5 PM 33° Partly Cloudy 9% 8 mph NE 46%
6 PM 33° Partly Cloudy 3% 8 mph NE 49%
7 PM 32° Partly Cloudy 3% 7 mph NNE 52%
8 PM 32° Partly Cloudy 3% 6 mph NE 54%
9 PM 31° Partly Cloudy 3% 6 mph NE 56%
15-Day Forecast
Today
9/22
Clear
3%
22°
33°
Wed
9/23
Mostly Clear
17%
22°
36°
Thu
9/24
Mostly Cloudy
3%
23°
35°
Fri
9/25
Mostly Clear
8%
20°
34°
Sat
9/26
Mostly Clear
3%
21°
34°
Sun
9/27
Clear
9%
21°
35°
Mon
9/28
Drizzle
43%
21°
33°
Tue
9/29
Rain
63%
21°
34°
Wed
9/30
Rain
69%
22°
34°
Thu
10/1
Drizzle
44%
20°
33°
Fri
10/2
Drizzle
60%
19°
33°
Sat
10/3
Drizzle
60%
21°
34°
Sun
10/4
Rain
90%
20°
32°
Mon
10/5
Drizzle
60%
18°
31°
Tue
10/6
Drizzle
60%
18°
31°
47
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
47 AQI 8.5 µg/m³
O3
Ground-level ozone
46 AQI 51 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 47 Good 46 47
Thu 55 Moderate 44 55
Fri 61 Moderate 61 57
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 Sep 23, 02:00'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
SBCAPE1347 J/kg
MLCAPE813 J/kg
MUCAPE1347 J/kg
SBCIN-187 J/kg
MLCIN-123 J/kg
Lifted Index-3.1
Kinematics
0–6 km Shear10 kt
0–1 km Shear16 kt
Eff. Shear10 kt
0–1 km SRH-46
0–3 km SRH-41
Eff. SRH-41
Storm Motion70° @ 23 kt
0–1 km EHI-0.4
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index34.0
Thermo & Levels
PWAT1.90 in
0–3 km LR5.6 °C/km
700–500 LR5.0 °C/km
Total Totals45.2
LCL973 hPa
LFC796 hPa
EL199 hPa
Freezing Lvl15,699 ft