Mamaroneck, NY (10543)

5:11 PM EDT on July 20, 2017 (GMT -0400)
Greenhaven | | Change Station

Elev 58 ft 40.95 °N, 73.71 °W | Updated 31 seconds ago

Partly Cloudy
Partly Cloudy
90.5 °F
Feels Like 101 °F
N
0.0
Wind Variable Wind from West

Today
High -- | Low -- °F
--% Chance of Precip.
Yesterday
High -- | Low -- °F
Precip. -- in
Pressure 29.86 in
Visibility 10.0 miles
Clouds Few 6000 ft
Heat Index 101 °F
Dew Point 74 °F
Humidity 60%
Rainfall 0.00 in
Snow Depth Not available.
5:40 AM 8:21 PM
Waning Crescent, 9% visible
METAR KHPN 202056Z 30007KT 10SM FEW060 33/18 A2989 RMK SLP112
Pressure 29.86 in
Visibility 10.0 miles
Clouds Few 6000 ft
Heat Index 101 °F
Dew Point 74 °F
Humidity 60%
Rainfall 0.00 in
Snow Depth Not available.
5:40 AM 8:21 PM
Waning Crescent, 9% visible
METAR KHPN 202056Z 30007KT 10SM FEW060 33/18 A2989 RMK SLP112

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10-Day Weather Forecast

Almanac

Astronomy

Jul. 20, 2017 Rise Set
Actual Time
Civil Twilight
Nautical Twilight
Astronomical Twilight
Moon
Length of Visible Light
Length of Day
Tomorrow will be .
, % of the Moon is Illuminated

Today's Extremes

State Highs State Lows

Community

WunderPhotos

Category 6

Welcome to Category 6. This is the collective home for Weather Underground's featured writeups by Dr. Jeff Masters (right), Bob Henson (left), Chris Burt, and other regular contributors.

Nearby

Air Quality

  Air Quality AQ Index Pollutant
Not available.

Snow Depth

Station Depth Elevation

Earthquake Activity

City Distance Mag. Time & Date
Minimum magnitude displayed is 2.5.

Coastal Water Temperatures

Place Temperature

Stations

Nearby Weather Stations

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

Watches & Warnings

Severe Thunderstorm Watch
Issued: 5:03 PM EDT Jul. 20, 2017 – National Weather Service


The National Weather Service has issued Severe Thunderstorm Watch
426 in effect until 10 PM EDT this evening for the following
areas

In New Jersey this watch includes 5 counties

In northeast New Jersey

Bergen Essex Hudson
Passaic Union

In New York this watch includes 9 counties

In southeast New York

Bronx Kings (brooklyn) Nassau
New York (manhattan) Orange Queens
Richmond (staten island) Rockland
Westchester

This includes the cities of Clifton, Passaic, Paterson,
and Wayne.




Heat Advisory
Issued: 2:43 PM EDT Jul. 20, 2017 – National Weather Service

... Heat advisory remains in effect until 6 PM EDT this evening...

* heat index values... in the mid 90s due to temperatures around
90, and dewpoints in the upper 60s.

* Timing... into the early evening. The highest heat index values
will occur mainly during the afternoon.

* Impacts... the heat and humidity may cause heat stress during
outdoor exertion or extended exposure. Extreme heat can cause
illness and death among the at-risk population who can not
stay cool.

Precautionary/preparedness actions...

A heat advisory is issued when the combination of heat and
humidity is expected to make it feel like it is 95 to 99 degrees
for two or more consecutive days, or 100 to 104 degrees for any
length of time.

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! In cases of heat stroke call 9 1 1.



Stachelski


Air Quality Alert
Issued: 3:37 AM EDT Jul. 20, 2017 – National Weather Service

... Air quality alert in effect from 11 am this morning to 11 PM EDT
this evening...

The New York state department of environmental conservation has
issued an air quality health advisory for the following counties...

Suffolk... Nassau... Richmond... Kings... Queens... New York... Bronx...
Westchester... Rockland.

Air quality levels in outdoor air are predicted to be greater than
an air quality index value of 100 for the pollutant of ground level
ozone. The air quality index... or aqi... was created as an easy way
to correlate levels of different pollutants to one scale. The higher
the aqi value... the greater the health concern.

When pollution levels are elevated... the New York state department
of health recommends that individuals consider limiting strenuous
outdoor physical activity to reduce the risk of adverse health
effects. People who may be especially sensitive to the effects of
elevated levels of pollutants include the very Young... and those
with preexisting respiratory problems such as asthma or heart
disease. Those with symptoms should consider consulting their
personal physician.

A toll free air quality hotline has been established so New York
residents can stay informed on the air quality situation. The toll
free number is 1-800-535-1345.



337 am EDT Thu Jul 20 2017

... Air quality alert in effect from 11 am this morning to 11 PM EDT
this evening...

The New York state department of environmental conservation has
issued an air quality health advisory for the following counties...

Suffolk... Nassau... Richmond... Kings... Queens... New York... Bronx...
Westchester... Rockland.

Air quality levels in outdoor air are predicted to be greater than
an air quality index value of 100 for the pollutant of ground level
ozone. The air quality index... or aqi... was created as an easy way
to correlate levels of different pollutants to one scale. The higher
the aqi value... the greater the health concern.

When pollution levels are elevated... the New York state department
of health recommends that individuals consider limiting strenuous
outdoor physical activity to reduce the risk of adverse health
effects. People who may be especially sensitive to the effects of
elevated levels of pollutants include the very Young... and those
with preexisting respiratory problems such as asthma or heart
disease. Those with symptoms should consider consulting their
personal physician.

A toll free air quality hotline has been established so New York
residents can stay informed on the air quality situation. The toll
free number is 1-800-535-1345.



342 PM EDT Wed Jul 19 2017

... Air quality alert in effect until 11 PM EDT this evening...
... Air quality alert in effect from 11 am to 11 PM EDT Thursday...

The New York state department of environmental conservation has
issued an air quality health advisory for the following counties...

Suffolk... Nassau... Richmond... Kings... Queens... New York... Bronx...
Westchester... Rockland.

Air quality levels in outdoor air are predicted to be greater than
an air quality index value of 100 for the pollutant of ground level
ozone. The air quality index... or aqi... was created as an easy way
to correlate levels of different pollutants to one scale. The higher
the aqi value... the greater the health concern.

When pollution levels are elevated... the New York state department
of health recommends that individuals consider limiting strenuous
outdoor physical activity to reduce the risk of adverse health
effects. People who may be especially sensitive to the effects of
elevated levels of pollutants include the very Young... and those
with preexisting respiratory problems such as asthma or heart
disease. Those with symptoms should consider consulting their
personal physician.

A toll free air quality hotline has been established so New York
residents can stay informed on the air quality situation. The toll
free number is 1-800-535-1345.



342 PM EDT Wed Jul 19 2017

... Air quality alert in effect until 11 PM EDT this evening...
... Air quality alert in effect from 11 am to 11 PM EDT Thursday...

The New York state department of environmental conservation has
issued an air quality health advisory for the following counties...

Suffolk... Nassau... Richmond... Kings... Queens... New York... Bronx...
Westchester... Rockland.

Air quality levels in outdoor air are predicted to be greater than
an air quality index value of 100 for the pollutant of ground level
ozone. The air quality index... or aqi... was created as an easy way
to correlate levels of different pollutants to one scale. The higher
the aqi value... the greater the health concern.

When pollution levels are elevated... the New York state department
of health recommends that individuals consider limiting strenuous
outdoor physical activity to reduce the risk of adverse health
effects. People who may be especially sensitive to the effects of
elevated levels of pollutants include the very Young... and those
with preexisting respiratory problems such as asthma or heart
disease. Those with symptoms should consider consulting their
personal physician.

A toll free air quality hotline has been established so New York
residents can stay informed on the air quality situation. The toll
free number is 1-800-535-1345.