Excessive Heat Watch 10:00 PM

Chiriaco Summit, California

Last updated: 6:55 PM CDT  ·  Refresh
38°C
Feels like 37°
Mostly Clear
▲ 42°  /  ▼ 28°
Wind
10 mph SW
Humidity
20%
Dew Point
12°
Pressure
27.82 inHg
Visibility
10 mi
UV Index
6.5
Cloud Cover
11%
Sunrise
5:47 AM
Sunset
7:50 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Chiriaco Summit is currently mostly clear at 38°C. Dry conditions are expected through the next 24 hours. Sunrise: 5:47AM · Sunset: 7:50PM.

Alerts

Excessive Heat Watch
Expires 10:00 PM
51 AQI · Moderate Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
38°
3%
5 PM
42°
3%
6 PM
41°
3%
7 PM
39°
3%
8 PM
37°
3%
9 PM
36°
3%
10 PM
35°
3%
11 PM
35°
3%
12 AM
34°
3%
1 AM
33°
3%
2 AM
33°
3%
3 AM
33°
3%
4 AM
30°
3%
5 AM
31°
3%
6 AM
33°
3%
7 AM
35°
3%
8 AM
37°
3%
9 AM
38°
3%
10 AM
39°
3%
11 AM
41°
3%
12 PM
41°
3%
1 PM
42°
3%
2 PM
42°
3%
3 PM
42°
3%
7-Day Forecast
Today
42° 28°
Mostly Clear.
Thu
43° 30°
Clear.
Fri
43° 32°
Clear.
Sat
44° 31°
Clear.
Sun
40° 29°
Mostly Clear.
Mon
42° 29°
Mostly Clear.
Tue
42° 29°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 38° Mostly Clear 3% 10 mph SW 20%
5 PM 42° Mostly Clear 3% 8 mph SW 20%
6 PM 41° Clear 3% 8 mph SW 22%
7 PM 39° Clear 3% 6 mph WSW 24%
8 PM 37° Clear 3% 5 mph WSW 26%
9 PM 36° Clear 3% 5 mph W 28%
10 PM 35° Clear 3% 3 mph WNW 30%
11 PM 35° Clear 3% 3 mph WNW 30%
12 AM 34° Clear 3% 3 mph NW 31%
1 AM 33° Clear 3% 3 mph N 32%
2 AM 33° Clear 3% 3 mph N 32%
3 AM 33° Clear 3% 3 mph NNE 33%
4 AM 30° Clear 3% 3 mph NNE 34%
5 AM 31° Clear 3% 4 mph NE 32%
6 AM 33° Clear 3% 4 mph NE 29%
7 AM 35° Clear 3% 4 mph NE 26%
8 AM 37° Clear 3% 3 mph ESE 24%
9 AM 38° Clear 3% 4 mph SSE 23%
10 AM 39° Clear 3% 7 mph SSE 21%
11 AM 41° Clear 3% 7 mph S 21%
12 PM 41° Clear 3% 8 mph S 20%
1 PM 42° Clear 3% 8 mph S 20%
2 PM 42° Clear 3% 8 mph S 20%
3 PM 42° Clear 3% 9 mph SSW 20%
15-Day Forecast
Today
7/22
Mostly Clear
3%
28°
42°
Thu
7/23
Clear
3%
30°
43°
Fri
7/24
Clear
3%
32°
43°
Sat
7/25
Clear
7%
31°
44°
Sun
7/26
Mostly Clear
14%
29°
40°
Mon
7/27
Mostly Clear
7%
29°
42°
Tue
7/28
Clear
15%
29°
42°
Wed
7/29
Mostly Clear
14%
28°
41°
Thu
7/30
Mostly Clear
3%
28°
41°
Fri
7/31
Partly Cloudy
15%
29°
42°
Sat
8/1
Mostly Clear
3%
29°
43°
Sun
8/2
Clear
3%
30°
44°
Mon
8/3
Clear
25%
29°
44°
Tue
8/4
Clear
3%
29°
43°
Wed
8/5
Clear
3%
28°
42°
51
Moderate
U.S. Air Quality Index · Dominant: O3
50 100 150 200

Air quality is acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
34 AQI 6.2 µg/m³
O3
Ground-level ozone
Dominant
51 AQI 55 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Thu 51 Moderate 51 34
Fri 45 Good 45 28
Sat 47 Good 47 25
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 22, 22:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE122 J/kg
MLCAPE11 J/kg
MUCAPE122 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index0.3
Kinematics
0–6 km Shear8 kt
0–1 km Shear5 kt
Eff. Shear12 kt
0–1 km SRH-22
0–3 km SRH-36
Eff. SRH-36
Storm Motion337° @ 14 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado-0.0
STP (eff)0.0
Supercell0.0
K-Index35.0
Thermo & Levels
PWAT1.49 in
0–3 km LR9.5 °C/km
700–500 LR6.3 °C/km
Total Totals45.7
LCL640 hPa
LFC942 hPa
EL395 hPa
Freezing Lvl15,194 ft