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Heat Advisory HEAT ADVISORY - Nassau

Regional Radar Regional IR Satellite
Radar/Satellite images courtesy of Weather Underground.
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METRIC | IMPERIAL
Updated: 08/22/2019 @ 11:50 am  
Temperature Current Conditions Forecast / Storm Prediction
Currently Outside: Warmer 2.3°F than last hour.

86.7°F

Heat Index:  92.5°F
---
High Today
86.7°F
11:49 AM
Low Today
72.7°F
6:11 AM
Yest High
83.7°F
2:35 PM
Yest Low
70.5°F
7:46 PM
Sta* High
84.6°F
2015
Sta* Low
61.6°F
2014
* This Station's Records Since 8/2013
Mostly cloudy Mostly cloudy

Wind from ENE Wind:  ENE
2.9

Gusting to:
2.9 mph
Current Rain Rain:
0.00 in
Chandler Burning Index: LOW Current CBI
Fire Danger:
11.2 of 100
Today

Fog a.m.
Fog a.m.
Tonight

Chance rain
Chance rain
Friday

Chance rain
Chance rain
High: 88° Low: 69° High: 81°

Click here for full Forecast
SPC Activity Map
Dew Point Liquid Precipitation Wind Speed Sun/Moon
Current: Decreased 2.1°F since last hour. 71.2°F
Last Hour: Decreased 2.1°F since last hour. 2.1°F
High 9:32 AM: 75.3°F
Low 11:43 AM: 69.2°F
Record High: 82.4°F on
Aug-13-2016
Record Low: -14.1°F on
Feb-13-2016
Wetbulb: 76.1°F
Rain Today
rain graph

Today: 0.00 in
Yesterday: 0.17 in
Last 7 Days: 0.76 in
Aug Rain: 1.96 in
Aug Avg: 4.00 in
Diff from Avg: Under 2.04 in for the month 2.04 in
Season:1 29.63 in
Last YTD:1 35.14 in
Last Rain
Time/Date:
Aug-21-2019
at 7:32 PM
95 rain days in 2019
9 days in August
0 days since last rain
Current: ENE  2.9 mph
1Hr Average: 2.6 mph
Wind Run: 24.96 miles
Wind Gust
Current: 2.9 mph mph
Today: 10.9 mph 11:15 AM
Month: 19.9 mph Aug-10
Year: 38.9 mph Feb-25
Record Gust: 48.3 mph
Jan-23-2016
Sunlight:
13 hrs 32 min
of Sunlight Today
graph 56.4% 43.6%
Which is
2 min 30 sec Shorter
Than Yesterday
 
Morning Crescent, 21 days, 12 hours, 43 minutes in cycle
3%
Illuminated
Humidity Barometer
Current: Decreased 9% since last hour. 60%
Last Hour: Decreased 9% since last hour. 9%
High 6:59 AM: 97%
Low 11:43 AM: 57%
Record High: 100%
Aug-27-2013
Record Low: 0%
Jan-26-2015
Current: Falling 0.006  inHg/hr 29.855 inHg
Last Hour: Steady
High 10:27 AM: 29.870 in.
Low 4:06 AM: 29.808 in.
Record High: 30.832 inHg
Feb-13-2018
Record Low: 28.919 inHg
Mar-14-2017
Cooling Degree Days Snow3 Heat Index Air
Today: 4.4
Aug: 199.7
2019 to Date: 721.9
Heating Degree Days
2019 to Date: 3422.6
Today: 0.00 in
Yesterday: 0.00 in
Aug Snow: No Change 0.00 in
Aug Avg: 0.00 in
Diff from Avg: 0.00 in
Season Total:2 0.00 in
Snow Depth: 0.00 in
0 snow days in August
0 snow days this season.2
First Snow of Season:
--
Average 1st Snow:
14 of Dec
Current: 92.5°F
High 11:03 am: 94.2°F
Yesterday: 92.6°F
Record: 125.2°F
Jul-20-2019
Data Not
Available


Data Not Available
Density:
1.15 kg/m3
Current UV Index Current Solar Energy9
6.6
Sunburn in
17 Minutes
Highest:
11:49 AM
6.8
870 W/m2
100%
W/m2 SI
High Today:
11:47 AM
888  W/m2
Record:
1519 W/m2
Almanac Irrigation Index5 Station All Time Records Cloud Level
Currently: Morning
YTD Avg Temp: 53.4°F
Sunrise: 6:08 am
Sunset: 7:40 pm
Moonrise: 11:00 pm
Moonset: 12:41 pm
Full Moon: Aug-15-2019
New Moon: 10:38 UTC
Aug-30-2019
Updated at Midnight
Current ET: 0.17 in
7-Days Rain: 0.76 in
7-Days ET: 1.15 in
7-Day:  0.39 in water in deficit of what evaporated in last 7 days. 0.39 in
August:  1.67 in water in deficit of what evaporated this month. 1.67 in
HIGHS: LOWS:
99.3°F
Jul-20-2019
-2.0°F
Feb-14-2016
Daytime Records
  94.5°F
Jul-21-2019
  6.3°F
Feb-14-2016
Nitetime Records
  82.4°F
Jul-22-2019
  3.4°F
Feb-14-2016
ICN:3 | S3C2:1 | Ajax 3.xx
ISS:Ok |
1 Rain season: Jan 1st to Dec 31st.   2 Snow season July 1st to June 30th.   3 Updated at 7:00 AM Daily..   5 Estimated amount of water needed to replace the water used by plants and evaporation from the past week. (Negative numbers mean amount of water needed, positive numbers mean excess water is present).   6 Source: New York State Department of Environmental Conservation.   9 Solar Index represents either an absolute scale of solar energy (W/m²) using the station’s recorded maximum or a percentage of computed theoretical solar maximum using the station’s location and time of day. These indices differ most when the sun is low on the horizon. The current scale is shown, and will toggle if it or the icon is clicked.  
  Weather Forecast  -   Outlook Today & Tonight
Today

Fog a.m.
Fog a.m.
High: 88°
WXSIM forecast: Mostly cloudy in the morning, becoming partly cloudy in the afternoon. Patchy light fog in the morning. Hot. High 88°. Heat index up to 92°. UV index up to 6. Wind west-southwest around 4 mph in the morning, becoming 7 mph, gusting to 16 mph, in the afternoon.
Tonight

Chance rain
Chance rain
Low: 69°
WXSIM forecast: Partly cloudy in the evening, becoming cloudy after midnight. A slight chance of rain in the evening, then a chance of rain after midnight. Precipitation showery or intermittent. Low 69°. Wind west around 6 mph. Chance of precipitation 50 percent. Precipitation mostly less than a quarter of an inch.
  Short Term Weather Forecast
Friday

Chance rain
Chance rain
Friday
night
Partly Cloudy
Partly Cloudy
Saturday

Sunny
Sunny
Saturday
night
Partly Cloudy
Partly Cloudy
Sunday

Mostly Sunny
Mostly Sunny
Sunday
night
Partly Cloudy
Partly Cloudy
Monday

Mostly Cloudy
Mostly Cloudy
High: 81° Low: 62° High: 81° Low: 66° High: 76° Low: 63° High: 76°