Diamond Bar, CA (91765)

5:24 AM PDT on July 23, 2016 (GMT -0700)
Tonner Canyon Hilltop | | Change Station
Active Advisory: Excessive Heat Warning

Elev 1178 ft 33.99 °N, 117.77 °W | Updated 4 minutes ago

Clear
Clear
76.8 °F
Feels Like 78 °F
N
2.2
Wind Variable Wind from SSW

Today
High -- | Low -- °F
--% Chance of Precip.
Yesterday
High -- | Low -- °F
Precip. -- in
Pressure 29.81 in
Visibility 8.0 miles
Clouds Clear
Heat Index 78 °F
Dew Point 54 °F
Humidity 45%
Rainfall 0.00 in
Snow Depth Not available.
5:56 AM 7:58 PM
Waning Gibbous, 85% visible
METAR KCNO 231153Z 00000KT 8SM CLR 21/14 A2983 RMK AO2 SLP092 T02110139 10283 20206 56001
Pressure 29.81 in
Visibility 8.0 miles
Clouds Clear
Heat Index 78 °F
Dew Point 54 °F
Humidity 45%
Rainfall 0.00 in
Snow Depth Not available.
5:56 AM 7:58 PM
Waning Gibbous, 85% visible
METAR KCNO 231153Z 00000KT 8SM CLR 21/14 A2983 RMK AO2 SLP092 T02110139 10283 20206 56001

10-Day Weather Forecast

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Jul. 23, 2016 Rise Set
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Minimum magnitude displayed is 2.5.

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Station Location Temp. Windchill Dew Point Humidity Wind Precip. Elev Updated Type
                   

Watches & Warnings

Excessive Heat Warning
Issued: 3:00 AM PDT Jul. 23, 2016 – National Weather Service

... Excessive heat warning remains in effect until 8 PM PDT this
evening...

* heat... high temperatures between 100 and 110 degrees will be
common today... with heat index values near 105 degrees during
the daytime hours.

* Impacts... dangerous heat-related illness is possible... especially
for sensitive populations... those conducting outdoor
activities... and people without access to air conditioning.
Electricity demands will be high and power outages are possible.

Precautionary/preparedness actions...

Anyone overcome by heat should be moved to a cool and shaded
location. Heat stroke is an emergency - call 911.

Never... ever... leave people or pets in enclosed vehicles... even
for a short period of time.

Take extra precautions if you work or spend time outside. When
possible... reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear light weight and loose fitting clothing when
possible and drink plenty of water.

To reduce risk during outdoor work the occupational safety and
health administration recommends scheduling frequent rest breaks
in shaded or air conditioned environments.