Heat Advisory — San Bernardino County Mountains, CA 10:00 PM

Tiefort Mountains, San Bernardino County, California, United States

Last updated: 7:16 AM CDT  ·  Refresh
27°C
Feels like 27°
Clear
▲ 41°  /  ▼ 26°
Wind
5 mph NW
Humidity
27%
Dew Point
6°
Pressure
26.93 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
2%
Sunrise
6:12 AM
Sunset
7:22 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Tiefort Mountains is currently clear at 27°C. Dry conditions are expected through the next 24 hours. Sunrise: 6:12AM · Sunset: 7:22PM.

Alerts

Heat Advisory
San Bernardino County Mountains, CA
Expires 10:00 PM
44 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
27°
3%
6 AM
26°
3%
7 AM
27°
3%
8 AM
29°
3%
9 AM
32°
3%
10 AM
34°
3%
11 AM
36°
3%
12 PM
37°
3%
1 PM
38°
3%
2 PM
39°
3%
3 PM
39°
3%
4 PM
39°
3%
5 PM
41°
3%
6 PM
41°
3%
7 PM
39°
3%
8 PM
38°
3%
9 PM
36°
3%
10 PM
35°
3%
11 PM
34°
3%
12 AM
32°
3%
1 AM
32°
3%
2 AM
31°
3%
3 AM
31°
3%
4 AM
30°
3%
7-Day Forecast
Today
41° 26°
Partly Cloudy.
Wed
43° 27°
Clear.
Thu
42° 26°
Partly Cloudy.
Fri
41° 23°
Mostly Cloudy.
Sat
42° 27°
Mostly Clear.
Sun
40° 26°
Clear.
Mon
38° 23°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 27° Clear 3% 5 mph NW 27%
6 AM 26° Clear 3% 4 mph NW 23%
7 AM 27° Mostly Clear 3% 4 mph NW 22%
8 AM 29° Mostly Clear 3% 3 mph WNW 20%
9 AM 32° Mostly Clear 3% 2 mph WSW 18%
10 AM 34° Mostly Clear 3% 2 mph S 17%
11 AM 36° Mostly Clear 3% 4 mph SSE 15%
12 PM 37° Mostly Clear 3% 5 mph SSE 14%
1 PM 38° Mostly Clear 3% 5 mph SSE 14%
2 PM 39° Partly Cloudy 3% 5 mph SSE 14%
3 PM 39° Partly Cloudy 3% 5 mph S 14%
4 PM 39° Partly Cloudy 3% 5 mph S 14%
5 PM 41° Partly Cloudy 3% 5 mph SSW 14%
6 PM 41° Partly Cloudy 3% 4 mph SSW 15%
7 PM 39° Partly Cloudy 3% 4 mph SW 16%
8 PM 38° Partly Cloudy 3% 4 mph WSW 17%
9 PM 36° Partly Cloudy 3% 5 mph W 18%
10 PM 35° Mostly Clear 3% 6 mph W 19%
11 PM 34° Mostly Clear 3% 8 mph WNW 20%
12 AM 32° Mostly Clear 3% 7 mph WNW 21%
1 AM 32° Mostly Clear 3% 7 mph WNW 22%
2 AM 31° Mostly Clear 3% 7 mph WNW 23%
3 AM 31° Mostly Clear 3% 6 mph WNW 23%
4 AM 30° Mostly Clear 3% 6 mph WNW 24%
15-Day Forecast
Today
8/25
Partly Cloudy
3%
26°
41°
Wed
8/26
Clear
6%
27°
43°
Thu
8/27
Partly Cloudy
7%
26°
42°
Fri
8/28
Mostly Cloudy
8%
23°
41°
Sat
8/29
Mostly Clear
8%
27°
42°
Sun
8/30
Clear
3%
26°
40°
Mon
8/31
Clear
3%
23°
38°
Tue
9/1
Clear
18%
22°
37°
Wed
9/2
Clear
44%
22°
38°
Thu
9/3
Clear
36%
22°
38°
Fri
9/4
Clear
25%
24°
37°
Sat
9/5
Drizzle
60%
24°
37°
Sun
9/6
Clear
60%
24°
37°
Mon
9/7
Clear
25%
24°
36°
Tue
9/8
Clear
25%
24°
36°
44
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
24 AQI 4.4 µg/m³
O3
Ground-level ozone
Dominant
44 AQI 48 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Wed 44 Good 44 24
Thu 49 Good 49 28
Fri 54 Moderate 54 35
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 LCL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Tue Aug 25, 11:00'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
SBCAPE0 J/kg
MLCAPE9 J/kg
MUCAPE0 J/kg
SBCIN—
MLCIN0 J/kg
Lifted Index3.6
Kinematics
0–6 km Shear19 kt
0–1 km Shear4 kt
Eff. Shear—
0–1 km SRH-4
0–3 km SRH40
Eff. SRH—
Storm Motion271° @ 17 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index26.9
Thermo & Levels
PWAT0.89 in
0–3 km LR6.7 °C/km
700–500 LR8.0 °C/km
Total Totals48.2
LCL660 hPa
LFC—
EL—
Freezing Lvl12,710 ft