Islip, NY

10:05 PM EDT on May 21, 2013 (GMT -0400)
Elev: 23 ft
Lon: 73.2° W
Lat: 40.7° N
Source
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Oklahoma Tornado: More coverage on Catastrophic EF-5 Tornado in Oklahoma
News
Miles and Minutes: Okla. Tornado By the Numbers
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Moore Tornado a Rare EF5
May 21, 2013
EF5/F5 tornadoes are rare, but Moore has seen two of them in the past 15 years.
Power of Moore Tornado Dwarfs Hiroshima Atomic Bomb
May 21, 2013
Wind, humidity and rainfall combined precisely to create the massive killer tornado in Moore, Okla. And when they did, the awesome amount of energy released over that city dwarfed the power of the atomic bomb that leveled Hiroshima.
Okla Governor: We Will Rebuild After Tornado
May 21, 2013
The search and rescue efforts are ongoing in Moore, Okla. after a massive tornado levelled the town and local schools.
Weather Imagery Reveals Oklahoma Tornado
May 21, 2013
The Moore, Oklahoma tornado showed up vividly on satellite and radar.
PTSD Risk after the Oklahoma Tornado
May 21, 2013
In the wake of Mondays devastating tornado that ravaged the town of Moore, Okla., survivors are likely to feel incredible shock and numbness.
Tornado Leaves Small Hospital 'Pretty Much Destroyed'
May 21, 2013
Officials say a tornado hit a small hospital in suburban Oklahoma City, but all the 30 patients inside survived.
Obama: 'Americans From Every Corner of This Country Will Be With Them'
May 21, 2013
Obama has declared a major disaster in Oklahoma, ordering federal aid to supplement state and local recovery efforts. The president also spoke Monday with Oklahoma Gov. Mary Fallin and Rep. Tom Cole, whose home is in the heavily damaged town of Moore.
Why Don't More Homes in Oklahoma Have Basements?
May 21, 2013
The answer lies in the level of the water table and the soil texture in Oklahoma and in states across the Plains.
Photos: Deadly Tornado Outbreak Strikes Plains
May 21, 2013
A tornado outbreak struck the Plains states on May 19, 2013, leaving widespread damage in its wake.
Children and the Tornado: Helping Kids Cope
May 21, 2013
Any time children are involved in a catastrophe, emotional reactions among survivors and across the nation are particularly strong.
Recap: Tornadoes Rake Oklahoma, Kansas, Iowa
May 21, 2013
The weather imagery, video and recap from tornadoes in the Plains on May 19, 2013.
Tornado Took Similar Path to 1999 F5
May 21, 2013
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'I Expected Chaos:' Scenes from Okla. School
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A photographer who was among the first to arrive at an Oklahoma Elementary School after a tornado destroyed it, describes the heart-wrenching scene.
A Timeline of Deadly Events in Moore, Okla.
May 21, 2013
Check out this comprehensive timeline of the events that transpired in Moore, Okla.
In Tornado's Wake, Worried Parents Seek Out Kids
May 21, 2013
A desperate search was underway by parents looking to find children after the massive tornado.
Moore Already at Work on Recovery, Says Mayor
May 21, 2013
Glenn Lewis was the mayor of Moore, Okla., when the strongest tornado on record whipped the city in 1999, and he says the most recent storm won't deter the community from rebuilding.
Moore Survivor Finds Dog Buried Alive
May 21, 2013
Watch as a tornado survivor is interrupted in the middle of interview by a little dog digging out of rubble.
Oklahoma Tornado: How to Help
May 21, 2013
There are several agencies asking for donations to help those hit hard by the Oklahoma tornadoes.
Multiple Children Dead at Okla. School
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More News Articles
Weather Summary
Kari Kiefer
Weather Underground midday recap for Tuesday, May 21, 2013.

After a devastating severe weather day in the Plains on Monday, severe weather began to fire up again across the nation's mid-section on Tuesday.

The nearly stationary low over the Northern Plains showed signs of gradual weakening as it shifted eastward toward the Mississippi River Valley on Tuesday, while the system's associated cold front trailed southwestward from the low across the Mid-Mississippi Valley through the Southern Plains. Favorable energy and conditions ahead of the cold front combined with the moisture laden conditions of the nation's mid-section set the stage for multiple clusters of thunderstorms to develop from the Midwest into the Ozarks and the Southern Plains. Portions of north-central/northeastern Texas, southern Arkansas, northwestern Louisiana and far southeastern Oklahoma remained at moderate risk of severe thunderstorm activity as environmental conditions remained favorable for tornadoes, damaging wind gusts, and very large hail. In particular, substantial severe weather was expected across north-central Texas to the

ArkLaTex region this afternoon and evening. Areas surrounding this moderate risk region from the Southern Plains to the Tennessee/Ohio valleys and the Lower Great Lakes/Northeast remained at slight risk of severe thunderstorm development with hail, damaging wind gusts, and isolated tornadoes. In addition to severe storms, heavy rains created chances of flood and possible isolated areas of flash flooding from parts eastern Oklahoma through northern Arkansas.

Meanwhile, areas of heavy rain and widely scattered showers continued near the low in the Northern Plains and Upper Mississippi Valley and near and to the north of a nearly stationary frontal boundary extending out ahead of the system from the Great Lakes into the inland areas of the Northeast. Continued precipitation in already saturated areas of the Northern Plains and Upper Midwest maintain flood concerns from parts of North Dakota into northern Wisconsin.

Elsewhere, scattered showers and thunderstorms picked up across the Mid-Atlantic and southeastern corner of the nation through the afternoon.
Weather Underground midday recap for Tuesday, May 21, 2013.

After a devastating severe weather day in the Plains on Monday, severe weather began to fire up again across the nation's mid-section on Tuesday.

The nearly stationary low over the Northern Plains showed signs of gradual weakening as it shifted eastward toward the Mississippi River Valley on Tuesday, while the system's associated cold front trailed southwestward from the low across the Mid-Mississippi Valley through the Southern Plains. Favorable energy and conditions ahead of the cold front combined with the moisture laden conditions of the nation's mid-section set the stage for multiple clusters of thunderstorms to develop from the Midwest into the Ozarks and the Southern Plains. Portions of north-central/northeastern Texas, southern Arkansas, northwestern Louisiana and far southeastern Oklahoma remained at moderate risk of severe thunderstorm activity as environmental conditions remained favorable for tornadoes, damaging wind gusts, and very large hail. In particular, substantial severe weather was expected across north-central Texas to the

ArkLaTex region this afternoon and evening. Areas surrounding this moderate risk region from the Southern Plains to the Tennessee/Ohio valleys and the Lower Great Lakes/Northeast remained at slight risk of severe thunderstorm development with hail, damaging wind gusts, and isolated tornadoes. In addition to severe storms, heavy rains created chances of flood and possible isolated areas of flash flooding from parts eastern Oklahoma through northern Arkansas.

Meanwhile, areas of heavy rain and widely scattered showers continued near the low in the Northern Plains and Upper Mississippi Valley and near and to the north of a nearly stationary frontal boundary extending out ahead of the system from the Great Lakes into the inland areas of the Northeast. Continued precipitation in already saturated areas of the Northern Plains and Upper Midwest maintain flood concerns from parts of North Dakota into northern Wisconsin.

Elsewhere, scattered showers and thunderstorms picked up across the Mid-Atlantic and southeastern corner of the nation through the afternoon.
More News Articles

Islip Weather at a Glance

Updated 9:56 PM EDT
Weather Station
Shirley (KHWV)
Elevation
82 ft
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Now
Clear
Clear
Temperature
64 °F
Feels Like 64 °F
Wind(mph)
6
Sunrise / Set
5:30 AM
8:09 PM
Moon
Waxing Gibbous
Tonight
Chance of Rain 63 °F
Chance of Rain
30% chance of precipitation
Tomorrow
Chance of a Thunderstorm 77 °F
Chance of T-storms
30% chance of precipitation
Tomorrow Night
Chance of a Thunderstorm 64 °F
Chance of T-storms
30% chance of precipitation
Thursday
Chance of a Thunderstorm 70 | 61 °F
Chance of T-storms
60% chance of precipitation
Friday
Chance of a Thunderstorm 70 | 54 °F
Chance of T-storms
50% chance of precipitation
Saturday
Chance of Rain 68 | 48 °F
Chance of Rain
50% chance of precipitation
Tomorrow is forecast to be nearly the same temperature as today.
Conditions
Pressure
29.91 in
Visibility
6.0 miles
Clouds
Clear -
Moisture
Humidity
90%
Rainfall
0.00 in
Snow Depth
Not available.
METAR
METAR KHWV 220156Z AUTO 22005KT 6SM BR CLR 18/16 A2991 RMK AO2 SLP128 T01780161 TSNO
Don't speak METAR? Read our FAQ.
Weather Radio
Launch Weather Radio
Temperature
Temperature
64 °F
68,76,70,71,74,73,73,74,72,70,68,66,65
Dew Point
61 °F
Wind
Speed / Dir
6 mph from SW
Wind Gust
Health
UV
0 out of 16
Pollen
8.60 out of 12
Pollen Forecast
Air Quality
Not available.
Flu Activity
Sporadic
View Flu Map
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Source: BestForecast
Descriptive Forecast
Tuesday Night
nt_chancerain Overcast with a chance of rain. Fog overnight. Low of 63F. Winds from the SSW at 5 to 10 mph. Chance of rain 30%.
Wednesday
chancetstorms Mostly cloudy with a chance of a thunderstorm and a chance of rain. High of 77F. Winds from the SSW at 10 to 15 mph. Chance of rain 30%.
Wednesday Night
nt_chancetstorms Overcast with a chance of a thunderstorm and a chance of rain. Low of 64F. Winds from the SSW at 10 to 15 mph. Chance of rain 30%.
Thursday
chancetstorms Overcast with a chance of a thunderstorm and a chance of rain. High of 70F. Breezy. Winds from the SSW at 15 to 20 mph. Chance of rain 60%.
Thursday Night
nt_chancetstorms Overcast with a chance of a thunderstorm and rain showers, then a chance of a thunderstorm and a chance of rain after midnight. Low of 61F. Winds from the South at 10 to 15 mph. Chance of rain 60% with rainfall amounts near 0.2 in. possible.
Friday
chancetstorms Overcast with a chance of rain. High of 70F. Winds from the SSW at 5 to 10 mph shifting to the West in the afternoon. Chance of rain 50% with rainfall amounts near 0.2 in. possible.
Friday Night
nt_chancerain Overcast with a chance of rain in the evening, then partly cloudy with a chance of rain. Low of 54F. Winds from the NNW at 5 to 15 mph. Chance of rain 50% with rainfall amounts near 0.3 in. possible.
Saturday
chancerain Partly cloudy with a chance of rain in the morning, then overcast with a chance of rain. High of 68F. Windy. Winds from the NNW at 25 to 30 mph. Chance of rain 50%.
Saturday Night
nt_partlycloudy Mostly cloudy in the evening, then clear. Low of 48F. Breezy. Winds from the WNW at 20 to 25 mph.
Sunday
clear Clear. High of 68F. Breezy. Winds from the West at 20 to 25 mph.
Sunday Night
nt_partlycloudy Clear. Low of 52F. Breezy. Winds from the WNW at 15 to 20 mph.
Monday
clear Clear. High of 68F. Breezy. Winds from the West at 15 to 20 mph.
Monday Night
nt_clear Clear. Low of 52F. Winds from the NW at 10 to 15 mph.
Tuesday
clear Clear. High of 68F. Winds from the WNW at 5 to 15 mph shifting to the SW in the afternoon.
Tuesday Night
nt_clear Clear. Low of 57F. Winds from the SW at 10 to 15 mph.
Wednesday
partlycloudy Partly cloudy. High of 72F. Winds from the SSW at 5 to 10 mph.
Wednesday Night
nt_chancetstorms Partly cloudy with a chance of a thunderstorm. Low of 59F. Winds from the SW at 5 to 10 mph. Chance of rain 50% with rainfall amounts near 0.2 in. possible.
Thursday
chancetstorms Partly cloudy with a chance of a thunderstorm. High of 73F. Winds from the SSW at 5 to 10 mph. Chance of rain 40%.
Thursday Night
nt_partlycloudy Partly cloudy. Low of 61F. Winds from the SSW at 5 to 10 mph.
Friday
partlycloudy Partly cloudy. High of 75F. Winds from the SSW at 5 to 10 mph.
Friday Night
nt_partlycloudy Partly cloudy. Low of 64F. Winds from the SW at 5 to 10 mph.
Saturday
partlycloudy Clear. High of 75F. Winds from the SSW at 5 to 10 mph.
Saturday Night
nt_clear Clear. Low of 64F. Winds from the SW at 5 to 10 mph.
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Weather Forecast for Islip NY

View Calendar 10-Day Forecast for station KHWV

Wednesday, 22
Chance of a Thunderstorm
77 | 64 °F
Chance of T-storms
Chance of
Precipitation
30%
Thursday, 23
Chance of a Thunderstorm
70 | 61 °F
Chance of T-storms
Chance of
Precipitation
60%
Friday, 24
Chance of a Thunderstorm
70 | 54 °F
Chance of T-storms
Chance of
Precipitation
50%
Saturday, 25
Chance of Rain
68 | 48 °F
Chance of Rain
Chance of
Precipitation
50%
Sunday, 26
Clear
68 | 52 °F
Clear
Chance of
Precipitation
0%
Monday, 27
Clear
68 | 52 °F
Clear
Chance of
Precipitation
0%
Tuesday, 28
Clear
68 | 57 °F
Clear
Chance of
Precipitation
0%
Wednesday, 29
Partly Cloudy
72 | 59 °F
Partly Cloudy
Chance of
Precipitation
0%
Thursday, 30
Chance of a Thunderstorm
73 | 61 °F
Chance of T-storms
Chance of
Precipitation
40%
Friday, 31
Partly Cloudy
75 | 64 °F
Partly Cloudy
Chance of
Precipitation
0%
Source: BestForecast at 9:45 PM EDT on May 21, 2013
Descriptive Forecast
Wednesday
chancetstorms Mostly cloudy with a chance of a thunderstorm and a chance of rain. High of 77F. Winds from the SSW at 10 to 15 mph. Chance of rain 30%.
Wednesday Night
nt_chancetstorms Overcast with a chance of a thunderstorm and a chance of rain. Low of 64F. Winds from the SSW at 10 to 15 mph. Chance of rain 30%.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 63 | 61 69 | 63 71 | 64 66 | 63
Wind 7 mph SSW 12 mph SW 12 mph SSW 12 mph SSW
Humidity 95% 83% 78% 85%
Chance of Precip. 30% 30% 30% 30%
Cloud Cover 91% 70% 76% 100%
Conditions Chance of Rain Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm
Sunrise & Sunset
5:30 AM
8:09 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [1.52], Average RMSE [1.98]
The National Weather Service forecast quality is good. MaxT RMSE [1.63], Average RMSE [1.76] : Use NWS
Source: BestForecast at 9:45 PM EDT on May 21, 2013
Descriptive Forecast
Thursday
chancetstorms Overcast with a chance of a thunderstorm and a chance of rain. High of 70F. Breezy. Winds from the SSW at 15 to 20 mph. Chance of rain 60%.
Thursday Night
nt_chancetstorms Overcast with a chance of a thunderstorm and rain showers, then a chance of a thunderstorm and a chance of rain after midnight. Low of 61F. Winds from the South at 10 to 15 mph. Chance of rain 60% with rainfall amounts near 0.2 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 65 | 61 67 | 63 65 | 63 64 | 60
Wind 13 mph SSW 15 mph SSW 15 mph South 13 mph South
Humidity 85% 85% 88% 90%
Chance of Precip. 30% 50% 60% 60%
Cloud Cover 91% 89% 100% 100%
Conditions Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm Chance of a Thunderstorm
Sunrise & Sunset
5:29 AM
8:09 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [1.96], Average RMSE [1.93]
The National Weather Service forecast quality is good. MaxT RMSE [1.66], Average RMSE [2.41] : Use NWS
Source: BestForecast at 9:45 PM EDT on May 21, 2013
Descriptive Forecast
Friday
chancetstorms Overcast with a chance of rain. High of 70F. Winds from the SSW at 5 to 10 mph shifting to the West in the afternoon. Chance of rain 50% with rainfall amounts near 0.2 in. possible.
Friday Night
nt_chancerain Overcast with a chance of rain in the evening, then partly cloudy with a chance of rain. Low of 54F. Winds from the NNW at 5 to 15 mph. Chance of rain 50% with rainfall amounts near 0.3 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 63 | 58 67 | 55 67 | 53 59 | 56
Wind 8 mph South 8 mph SW 7 mph NW 10 mph NNW
Humidity 86% 66% 59% 90%
Chance of Precip. 60% 50% 50% 20%
Cloud Cover 87% 100% 98% 100%
Conditions Chance of a Thunderstorm Chance of Rain Chance of Rain Chance of Rain
Sunrise & Sunset
5:28 AM
8:10 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.63], Average RMSE [2.71]
The National Weather Service forecast quality is good. MaxT RMSE [1.99], Average RMSE [2.68] : Use NWS
Source: BestForecast at 9:45 PM EDT on May 21, 2013
Descriptive Forecast
Saturday
chancerain Partly cloudy with a chance of rain in the morning, then overcast with a chance of rain. High of 68F. Windy. Winds from the NNW at 25 to 30 mph. Chance of rain 50%.
Saturday Night
nt_partlycloudy Mostly cloudy in the evening, then clear. Low of 48F. Breezy. Winds from the WNW at 20 to 25 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 55 | 52 61 | 47 66 | 46 55 | 42
Wind 14 mph NNW 26 mph NNW 17 mph NNW 22 mph WNW
Humidity 87% 62% 50% 61%
Chance of Precip. 20% 20% 20% 10%
Cloud Cover 54% 9% 41% 4%
Conditions Chance of Rain Chance of Rain Chance of Rain Clear
Sunrise & Sunset
5:28 AM
8:11 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [2.25], Average RMSE [2.61]
The National Weather Service forecast quality is good. MaxT RMSE [2.35], Average RMSE [2.00] : Use NWS
Source: BestForecast at 9:45 PM EDT on May 21, 2013
Descriptive Forecast
Sunday
clear Clear. High of 68F. Breezy. Winds from the West at 20 to 25 mph.
Sunday Night
nt_partlycloudy Clear. Low of 52F. Breezy. Winds from the WNW at 15 to 20 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 53 | 39 63 | 40 64 | 44 55 | 40
Wind 23 mph WNW 22 mph WNW 18 mph West 15 mph NW
Humidity 60% 41% 47% 56%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 4% 11% 6%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
5:27 AM
8:12 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [2.01], Average RMSE [2.88]
The National Weather Service forecast quality is fair. MaxT RMSE [3.22], Average RMSE [2.33] : Use NWS
Source: BestForecast at 9:45 PM EDT on May 21, 2013
Descriptive Forecast
Monday
clear Clear. High of 68F. Breezy. Winds from the West at 15 to 20 mph.
Monday Night
nt_clear Clear. Low of 52F. Winds from the NW at 10 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 53 | 38 65 | 40 62 | 45 55 | 40
Wind 15 mph West 16 mph West 13 mph WSW 13 mph NNW
Humidity 57% 40% 52% 58%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 30% 29% 8%
Conditions Clear Partly Cloudy Partly Cloudy Clear
Sunrise & Sunset
5:26 AM
8:13 PM
The quality of the forecasted high temperature for this day is good. MaxT RMSE [2.50], Average RMSE [3.01]
The National Weather Service forecast quality is fair. MaxT RMSE [2.68], Average RMSE [2.45] : Use NWS
Source: BestForecast at 9:45 PM EDT on May 21, 2013
Descriptive Forecast
Tuesday
clear Clear. High of 68F. Winds from the WNW at 5 to 15 mph shifting to the SW in the afternoon.
Tuesday Night
nt_clear Clear. Low of 57F. Winds from the SW at 10 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 54 | 37 65 | 44 65 | 47 56 | 51
Wind 9 mph NW 7 mph West 13 mph SW 13 mph SW
Humidity 52% 44% 51% 81%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 30% 12% 9%
Conditions Clear Partly Cloudy Clear Clear
Sunrise & Sunset
5:26 AM
8:14 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.64], Average RMSE [2.89]
The National Weather Service forecast quality is fair. MaxT RMSE [2.51], Average RMSE [2.47] : Use NWS
Source: BestForecast at 9:45 PM EDT on May 21, 2013
Descriptive Forecast
Wednesday
partlycloudy Partly cloudy. High of 72F. Winds from the SSW at 5 to 10 mph.
Wednesday Night
nt_chancetstorms Partly cloudy with a chance of a thunderstorm. Low of 59F. Winds from the SW at 5 to 10 mph. Chance of rain 50% with rainfall amounts near 0.2 in. possible.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 58 | 52 67 | 54 65 | 56 60 | 58
Wind 9 mph West 8 mph SSW 9 mph SSW 5 mph SSW
Humidity 78% 59% 73% 93%
Chance of Precip. 0% 0% 0% 10%
Cloud Cover 29% 50% 38% 41%
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
5:25 AM
8:15 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [3.09], Average RMSE [3.08]
Source: BestForecast at 9:45 PM EDT on May 21, 2013
Descriptive Forecast
Thursday
chancetstorms Partly cloudy with a chance of a thunderstorm. High of 73F. Winds from the SSW at 5 to 10 mph. Chance of rain 40%.
Thursday Night
nt_partlycloudy Partly cloudy. Low of 61F. Winds from the SSW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 62 | 60 69 | 61 70 | 63 63 | 60
Wind 3 mph SW 6 mph SSW 8 mph SSW 6 mph SSW
Humidity 92% 73% 78% 91%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 59% 64% 56% 47%
Conditions Partly Cloudy Mostly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
5:25 AM
8:15 PM
The quality of the forecasted high temperature for this day is fair. MaxT RMSE [2.53], Average RMSE [3.31]
Source: BestForecast at 9:45 PM EDT on May 21, 2013
Descriptive Forecast
Friday
partlycloudy Partly cloudy. High of 75F. Winds from the SSW at 5 to 10 mph.
Friday Night
nt_partlycloudy Partly cloudy. Low of 64F. Winds from the SW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 64 | 58 71 | 57 70 | 57 64 | 57
Wind 4 mph SW 7 mph SSW 9 mph SSW 6 mph SSW
Humidity 79% 61% 62% 77%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 39% 32% 28% 30%
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
5:24 AM
8:16 PM
Source: BestForecast at 9:45 PM EDT on May 21, 2013
Descriptive Forecast
Saturday
partlycloudy Clear. High of 75F. Winds from the SSW at 5 to 10 mph.
Saturday Night
nt_clear Clear. Low of 64F. Winds from the SW at 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 65 | 59 72 | 61 71 | 63 65 | 63
Wind 4 mph SW 7 mph SSW 9 mph SSW 7 mph SSW
Humidity 80% 66% 73% 93%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 39% % % %
Conditions Partly Cloudy Clear Clear Clear
Sunrise & Sunset
Sun does not rise
Scientific Forecaster Discussion — MOS Weather Graph
Nearby
History & Almanac
May 21, 2013 Max Temp Min Temp
Normal (KISP) 69 °F 51 °F
Record (KISP) 90 °F (1996) 39 °F (2002)
Yesterday 75 °F 57 °F
Yesterday's Cooling Degree Days: 1
Choose a date
Earthquake Activity
City Distance Mag. Time & Date
No recent earthquake activity has been reported nearby.
Minimum magnitude displayed is 2.5.
More information at USGS.gov
Air Quality
  Air Quality AQ Index Pollutant
Yesterday Good
OZONE
Tuesday Moderate
OZONE
Tuesday Moderate
PM2.5
Wednesday Moderate
PM2.5
Wednesday Good
OZONE
Coastal Water Temperatures
Place Temperature
No Stations Reporting
Marine Forecast
Astronomy
May. 21, 2013 Rise Set
Actual Time 5:30 AM EDT 8:09 PM EDT
Civil Twilight 4:58 AM EDT 8:40 PM EDT
Nautical Twilight 4:19 AM EDT 9:20 PM EDT
Astronomical Twilight 3:34 AM EDT 10:05 PM EDT
Moon 4:18 PM EDT (5/21) 2:58 AM EDT (5/21)
Length Of Visible Light 15h 42m
Length of Day
14h 38m
Tomorrow will be 1m 38s longer.
Waxing Gibbous, 87% of the Moon is Illuminated
Today
Waxing Gibbous
May 25
Full
May 31
Last Quarter
Jun 8
New
Jun 16
First Quarter
Visit Astronomy
Today's Extremes
State Highs State Lows
90 °F
Dansville
89 °F
Poughkeepsie
89 °F
Elmira
88 °F
Montgomery
88 °F
Albany
53 °F
Saranac Lake
55 °F
Plattsburgh
57 °F
Poughkeepsie
57 °F
Westhampton Beach
57 °F
Massena
Record Extremes
Snow Depth
Station Depth Elevation
No new snow has been reported.
Snow Depth Reports — Snow Depth Map
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Aviation
City Temp. Conditions Updated
Islip 65 °F Partly Cloudy 9:56 PM EDT
Farmingdale 65 °F Clear 9:53 PM EDT
Shirley 64 °F Clear 9:56 PM EDT
Bridgeport 69 °F Clear 9:52 PM EDT
View all Aviation Tools
Flight To ETA Status
SWA522
Fort Lauderdale, FL 		KISP 10:42PM On Time
SWA3923
Tampa, FL 		KISP 11:09PM On Time
SWA2343
Orlando, FL 		KISP 11:44PM On Time
Flight Tracker by FlightAware FlightAware
View U.S. Airport Delays
Type Condition
Flight Rule: VFR (KHWV)
Wind Speed: 5.0 kts.
Wind Dir: 220° (SW)
Ceiling: Unlimited

METAR KHWV 220156Z AUTO 22005KT 6SM BR CLR 18/16 A2991 RMK AO2 SLP128 T01780161 TSNO

View all Reports & Maps
Nearby Events
Event Date Forecast
No events within 10 mi of location. View all events.
Event data courtesy eviesays.com
Sports
Event Date Forecast
Tigers vs. Indians 7:05 PM EDT on May 21, 2013 Chance of a Thunderstorm, 81 °F
Yankees vs. Orioles 7:05 PM EDT on May 21, 2013 Partly Cloudy, 81 °F
Event Date Forecast
Livorno vs. Brescia 6:30 PM CEST on May 22, 2013 Clear, High 69° F/ 21° C
Empoli vs. Novara 8:45 PM CEST on May 22, 2013 Clear, High 68° F/ 20° C
Event Date Forecast
Coca-Cola 600 6:16 PM EDT on May 26, 2013 Partly Cloudy, 70 °F
FedEx 400 benefiting Autism Speaks 1:15 PM EDT on June 02, 2013 Average High 81° F/ 27° C
Event Date Forecast
Crowne Plaza Invitational at Colonial 8:30 AM CDT on May 23, 2013 Partly Cloudy, 68 °F
Crowne Plaza Invitational at Colonial 8:30 AM CDT on May 24, 2013 Mostly Cloudy, 70 °F
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Weather Stations
Station Location Temp. Heat Index Dew Point Humidity Wind Precipitation Elevation Updated Type Website
Islip, Islip, NY 64.9 °F - 63 °F 94% SW  at  1.0 mph 0.00 in / hr 26 ft 10:05 PM EDT Rapid Fire  
Percy Williams EI, East Islip, NY 64.0 °F - 47 °F 53% West  at  0.0 mph 0.00 in / hr 5 ft 10:05 PM EDT Rapid Fire  
Bay Shore, Bay Shore, NY 66.4 °F - 61 °F 84% WSW  at  2.7 mph 0.00 in / hr 49 ft 10:05 PM EDT Rapid Fire  
Oak Neck, West Islip, NY 65.3 °F - 60 °F 84% North  at  0.0 mph 0.00 in / hr 3 ft 9:59 PM EDT Normal
Long Island South Shore, Oakdale, NY 64.0 °F - 53 °F 68% North  at  0.0 mph 0.00 in / hr 30 ft 10:00 PM EDT Normal  
Hauppauge LIE Exit 55, Hauppauge, NY 67.1 °F - 62 °F 83% South  at  5.0 mph 0.00 in / hr 140 ft 10:04 PM EDT Normal  
Deer Park Ave Southern State Pkwy, North Babylon, NY 64.3 °F - 64 °F 99% WNW  at  0.0 mph 0.00 in / hr 34 ft 10:05 PM EDT Normal  
Sayville, NY 63.5 °F - 62 °F 95% SSE  at  0.0 mph 0.00 in / hr 36 ft 10:05 PM EDT Rapid Fire  
Belmont Lake State Park Area, North Babylon, NY 65.6 °F - 63 °F 90% WSW  at  0.0 mph 0.00 in / hr 45 ft 10:05 PM EDT Rapid Fire
Lake Hills Ronkonkoma, Ronkonkoma, NY 65.7 °F - 65 °F 98% SSE  at  1.6 mph - / hr 59 ft 9:58 PM EDT Normal  
KC2YSK Chasso Court, Dix Hills, NY 65.7 °F - 60 °F 82% WNW  at  0.0 mph 0.00 in / hr 136 ft 10:05 PM EDT Rapid Fire
Port Ave, Ronkonkoma, NY 65.0 °F - 35 °F 32% SSE  at  4.0 mph 0.00 in / hr 111 ft 10:05 PM EDT Rapid Fire
Babylon Village, Babylon, NY 64.0 °F - 60 °F 88% ENE  at  2.0 mph 0.00 in / hr 55 ft 10:04 PM EDT Rapid Fire  
Fire Island Pines, Fire Island Pines, NY 60.8 °F - 58 °F 89% West  at  5.0 mph 0.00 in / hr 20 ft 10:02 PM EDT Normal
Elwood Highway, Huntington, NY 66.5 °F - 64 °F 90% SSW  at  1.0 mph 0.00 in / hr 210 ft 10:05 PM EDT Rapid Fire  
American Venice, Lindenhurst, NY 63.5 °F - 62 °F 93% WSW  at  8.0 mph 0.00 in / hr 33 ft 9:55 PM EDT Normal  
KNYSAINT3, Saint James, NY 66.6 °F - 62 °F 85% South  at  0.7 mph 0.00 in / hr 144 ft 10:05 PM EDT Rapid Fire  
Club 320, Saint James, NY 66.2 °F - 64 °F 93% SSW  at  0.0 mph 0.00 in / hr 171 ft 10:05 PM EDT Rapid Fire  
Lone Pine Poultry Farm, Melville, NY 65.5 °F - 63 °F 91% North  at  0.0 mph 0.00 in / hr 135 ft 10:05 PM EDT Normal  
Lake Grove, NY, Lake Grove, NY 71.4 °F 74 °F 62 °F 72% SSW  at  3.5 mph 0.00 in / hr 0 ft 10:05 PM EDT Rapid Fire  
Kings Park, Kings Park, NY 69.5 °F - 62 °F 76% SW  at  0.9 mph 0.00 in / hr 177 ft 10:05 PM EDT Rapid Fire  
Indian Head Knolls, Kings Park, NY 67.0 °F - 67 °F 99% SSW  at  0.0 mph 0.00 in / hr 157 ft 10:05 PM EDT Normal
Atlantic St/Clay Pitts Rd, East Northport, NY 67.0 °F - 64 °F 91% South  at  0.0 mph 0.00 in / hr 200 ft 10:05 PM EDT Rapid Fire
APRSWXNET Farmingville NY , Farmingville, NY 66 °F - 64 °F 93% SSE  at  0 mph 0.00 in / hr 180 ft 9:30 PM EDT MADIS
Elwood Middle School, Greenlawn, NY 66.0 °F - 66 °F 100% NE  at  5.0 mph 0.00 in / hr 0 ft 10:05 PM EDT Normal  
Farmingville, Farmingville, NY 65.1 °F - 63 °F 94% SSE  at  0.0 mph 0.00 in / hr 150 ft 10:00 PM EDT Normal  
Centereach, Centereach, NY 65.6 °F - 63 °F 92% SE  at  0.0 mph 0.00 in / hr 128 ft 10:04 PM EDT Normal  
Kings Park, NY 67.5 °F - 64 °F 87% SSE  at  2.0 mph 0.00 in / hr 23 ft 10:02 PM EDT Normal  
Amityville, Amityville, NY 64.8 °F - 64 °F 98% SSE  at  3.2 mph - / hr 43 ft 9:50 PM EDT Normal  
SeeMyIP.com Weather, St James, NY 68.0 °F - 68 °F 99% South  at  1.6 mph 0.00 in / hr 148 ft 10:05 PM EDT Rapid Fire
Middle Country Library, Centereach, NY 66.9 °F - 64 °F 90% SSW  at  0.0 mph 0.00 in / hr 94 ft 10:05 PM EDT Rapid Fire
Nassau/Suffolk County Line, East Farmingdale, NY 64.6 °F - 62 °F 92% WSW  at  2.0 mph 0.00 in / hr 88 ft 10:05 PM EDT Rapid Fire
7th Ave and Elwood Rd, East Northport, NY 66.8 °F - 63 °F 87% ESE  at  0.0 mph 0.00 in / hr 220 ft 10:04 PM EDT Normal  
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