Excessive Heat Watch 10:00 PM

Tonopah Desert, Maricopa County, Arizona, United States

Last updated: 6:05 PM CDT  ·  Refresh
40°C
Feels like 41°
Mostly Clear
▲ 42°  /  ▼ 27°
Wind
6 mph SSW
Humidity
25%
Dew Point
15°
Pressure
28.43 inHg
Visibility
10 mi
UV Index
7.4
Cloud Cover
22%
Sunrise
5:36 AM
Sunset
7:38 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Tonopah Desert is currently mostly clear at 40°C. Dry conditions are expected through the next 24 hours. Sunrise: 5:36AM · Sunset: 7:38PM.

Alerts

Excessive Heat Watch
Expires 10:00 PM
44 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
40°
6%
5 PM
42°
3%
6 PM
42°
4%
7 PM
41°
3%
8 PM
39°
4%
9 PM
38°
4%
10 PM
37°
4%
11 PM
36°
4%
12 AM
36°
5%
1 AM
34°
5%
2 AM
33°
3%
3 AM
33°
3%
4 AM
32°
3%
5 AM
31°
3%
6 AM
31°
3%
7 AM
33°
3%
8 AM
34°
3%
9 AM
36°
3%
10 AM
37°
3%
11 AM
39°
3%
12 PM
40°
3%
1 PM
41°
3%
2 PM
41°
3%
3 PM
43°
3%
7-Day Forecast
Today
42° 27°
Mostly Clear.
Thu
44° 31°
Clear.
Fri
47° 32°
Clear.
Sat
47° 31°
Clear.
Sun
41° 32°
Mostly Cloudy with a 25% chance of rain.
Mon
41° 29°
Drizzle, 55% chance.
Tue
40° 30°
Mostly Cloudy with a 24% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 40° Mostly Clear 6% 6 mph SSW 25%
5 PM 42° Partly Cloudy 3% 5 mph SW 24%
6 PM 42° Mostly Clear 4% 4 mph SW 25%
7 PM 41° Mostly Clear 3% 5 mph SSE 27%
8 PM 39° Clear 4% 6 mph ESE 29%
9 PM 38° Clear 4% 6 mph ESE 29%
10 PM 37° Mostly Clear 4% 4 mph ENE 30%
11 PM 36° Mostly Clear 4% 5 mph NE 31%
12 AM 36° Clear 5% 5 mph NNE 32%
1 AM 34° Clear 5% 5 mph NNE 33%
2 AM 33° Clear 3% 4 mph NNE 34%
3 AM 33° Clear 3% 4 mph NE 35%
4 AM 32° Clear 3% 5 mph NE 37%
5 AM 31° Clear 3% 5 mph NE 39%
6 AM 31° Clear 3% 5 mph ENE 37%
7 AM 33° Clear 3% 5 mph ENE 36%
8 AM 34° Clear 3% 6 mph E 34%
9 AM 36° Clear 3% 5 mph E 30%
10 AM 37° Clear 3% 4 mph E 27%
11 AM 39° Clear 3% 4 mph ESE 24%
12 PM 40° Clear 3% 4 mph E 23%
1 PM 41° Clear 3% 4 mph E 22%
2 PM 41° Clear 3% 5 mph E 22%
3 PM 43° Clear 3% 4 mph ESE 22%
15-Day Forecast
Today
7/22
Mostly Clear
6%
27°
42°
Thu
7/23
Clear
5%
31°
44°
Fri
7/24
Clear
3%
32°
47°
Sat
7/25
Clear
17%
31°
47°
Sun
7/26
Mostly Cloudy
25%
32°
41°
Mon
7/27
Drizzle
55%
29°
41°
Tue
7/28
Mostly Cloudy
24%
30°
40°
Wed
7/29
Partly Cloudy
60%
31°
42°
Thu
7/30
Mostly Cloudy
44%
30°
41°
Fri
7/31
Partly Cloudy
27%
32°
43°
Sat
8/1
Drizzle
60%
31°
43°
Sun
8/2
Clear
25%
31°
42°
Mon
8/3
Drizzle
60%
31°
42°
Tue
8/4
Clear
60%
31°
41°
Wed
8/5
Drizzle
60%
31°
41°
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
22 AQI 4.0 µg/m³
O3
Ground-level ozone
Dominant
44 AQI 48 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Thu 44 Good 44 22
Fri 47 Good 47 28
Sat 42 Good 42 26
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, 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
SBCAPE520 J/kg
MLCAPE162 J/kg
MUCAPE520 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-1.0
Kinematics
0–6 km Shear13 kt
0–1 km Shear5 kt
Eff. Shear13 kt
0–1 km SRH-19
0–3 km SRH-33
Eff. SRH-33
Storm Motion337° @ 16 kt
0–1 km EHI-0.1
Composite Parameters
Sig. Tornado-0.0
STP (eff)0.0
Supercell0.0
K-Index38.5
Thermo & Levels
PWAT1.72 in
0–3 km LR9.8 °C/km
700–500 LR5.5 °C/km
Total Totals46.6
LCL675 hPa
LFC963 hPa
EL204 hPa
Freezing Lvl16,220 ft