Upper Marlboro, MD

8:41 AM EDT on August 18, 2017 (GMT -0400)
Clagett Farm | | Change Station
Active Advisory: Heat Advisory

Elev 164 ft 38.82 °N, 76.80 °W | Updated 9 minutes ago

Overcast
Overcast
76.8 °F
Feels Like 77 °F
N
0.0
Wind Variable Wind from WSW
Gusts 9.0 mph

Today
High -- | Low -- °F
--% Chance of Precip.
Yesterday
High -- | Low -- °F
Precip. -- in
Pressure 29.90 in
Visibility 10.0 miles
Clouds Overcast 600 ft
Heat Index 77 °F
Dew Point 76 °F
Humidity 96%
Rainfall 0.00 in
Snow Depth Not available.
6:23 AM 7:57 PM
Waning Crescent, 14% visible
METAR KADW 181158Z AUTO 21009KT 10SM OVC006 25/23 A2988 RMK AO2 SLP123 70001 T02460231 10246 20232 52007
Pressure 29.90 in
Visibility 10.0 miles
Clouds Overcast 600 ft
Heat Index 77 °F
Dew Point 76 °F
Humidity 96%
Rainfall 0.00 in
Snow Depth Not available.
6:23 AM 7:57 PM
Waning Crescent, 14% visible
METAR KADW 181158Z AUTO 21009KT 10SM OVC006 25/23 A2988 RMK AO2 SLP123 70001 T02460231 10246 20232 52007

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10-Day Weather Forecast

Almanac

Astronomy

Aug. 18, 2017 Rise Set
Actual Time
Civil Twilight
Nautical Twilight
Astronomical Twilight
Moon
Length of Visible Light
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City Distance Mag. Time & Date
Minimum magnitude displayed is 2.5.

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

Watches & Warnings

Heat Advisory
Issued: 3:42 AM EDT Aug. 18, 2017 – National Weather Service

... Heat advisory in effect from 11 am this morning to 8 PM EDT
this evening...

The National Weather Service in Baltimore MD/Washington has
issued a heat advisory, which is in effect from 11 am this
morning to 8 PM EDT this evening.

* Heat index values... around 105 degrees due to temperatures in
the lower 90s and dewpoints in the mid to upper 70s.

* Impacts... the heat and humidity may cause heat stress during
outdoor exertion or extended exposure.

Precautionary/preparedness actions...

A heat advisory means that a period of high temperatures is
expected. The combination of high temperatures and high humidity
will create a situation in which heat illnesses are possible.

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