Heat Advisory HEAT ADVISORY - Collin County
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METRIC | IMPERIAL
Updated: 12-Aug-2020 @ 4:45pm  
Temperature Current Conditions Forecast / Storm Prediction
Currently Outside: Warmer 0.5°F than last hour.

99.1°F

Heat Index:  115.8°F
Dangerously Hot
High Today
100.6°F
4:23 PM
Low Today
81.7°F
7:05 AM
Yest High
98.6°F
4:32 PM
Yest Low
80.2°F
6:47 AM
Sta* High
105.2°F
2016
Sta* Low
71.2°F
2018
Avg* High
99.6°F
for Today
Avg* Low
76.5°F
for Today
* Based on this station's measurements taken since 10/2009
Sunny, Dry Sunny, Dry
Wind from E Wind:  E
11.3

Gusting to:
12.0 mph
Current Rain Rain:
0.00 in
Chandler Burning Index: LOW Current CBI
Fire Danger:
22.6 of 100
This
Afternoon
This Afternoon: Sunny and hot, with a high near 100. Heat index values as high as 106. South southeast wind around 5 mph.
Hot
Tonight

Tonight: Mostly clear, with a low around 80. Southeast wind 5 to 10 mph.
Mostly Clear
Thursday

Thursday: Sunny and hot, with a high near 103. Heat index values as high as 107. South southwest wind 5 to 10 mph.
Hot
Hi 100 °F Lo 80 °F Hi 103 °F
SPC Activity Map
Dew Point Liquid Precipitation Wind Speed Sun/Moon
Current: Increased 2.4°F since last hour. 77.2°F
Last Hour: Increased 2.4°F since last hour. 2.4°F
High 4:44 PM: 77.3°F
Low 12:36 AM: 71.6°F
Record High: 81.5°F on
Aug-17-2017
Record Low: -3.6°F on
Jan-27-2014
Wetbulb: 83.3°F
Rain Today
rain graph

Today: 0.00 in
Yesterday: 0.00 in
Last 7 Days: 0.00 in
Aug Rain: 0.00 in
Aug to Date
  Avg:10
0.71 in
Aug to Date
  Diff from Avg:10
Under 0.71 in for the month 0.71 in
Aug Avg: 2.61 in
Diff from Avg: Under 2.61 in for the month 2.61 in
Season:1 33.12 in
YTD
  Avg:11
27.18 in
YTD
  Diff from Avg:11
Over 5.94 in for the year 5.94 in
Last Rain
Time/Date:
Jul-31-2020
at 2:32 AM
72 rain days in 2020
0 days in August
11 days since last rain
Current: E  11.3 mph
1Hr Average: 4.2 mph
Wind Run: 112.41 miles
Wind Gust
Current: 12.0 mph mph
Today: 22.0 mph 3:38 AM
Month: 24.0 mph Aug-5
Year: 50.0 mph Apr-28
Record Gust: 63.3 mph
Mar-29-2017
Sunlight:
13 hrs 27 min 2 sec
of Sunlight Today

Which is
1 min 43 sec shorter
than yesterday

(Noon) pie chart (Midnight)

Legend
Waning Crescent
Waning Crescent, 23 days, 4 hours, 12 minutes in cycle
37% Illuminated
Humidity Barometer
Current: Increased 3% since last hour. 50%
Last Hour: Increased 3% since last hour. 3%
High 7:03 AM: 76%
Low 3:20 PM: 44%
Record High: 100%
Oct-6-2009
Record Low: 13%
Dec-11-2017
Current: Falling 0.011  inHg/hr 29.779 inHg
Last Hour: Steady
High 8:57 AM: 29.864 in.
Low 4:44 PM: 29.779 in.
Record High: 30.844 inHg
Jan-1-2018
Record Low: 29.323 inHg
Jan-21-2017
Cooling Degree Days Snow3 Heat Index Air
Today: 14.4
Aug: 233.5
2020 to Date: 1793.8
Heating Degree Days
2020 to Date: 1232.9
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:
Jan-11-2020
Average 1st Snow:
18 of Dec
Current: 115.8°F
High 4:44pm: 116.1°F
Yesterday: 111.2°F
Record: 121.5°F
Aug-12-2016
Quality
Index6:

61


Moderate

Density:
1.12 kg/m3

aqi
aqi
Current UV Index Current Solar Energy9
2.0
Sunburn in
56 Minutes
Highest:
1:11 PM
9.2
643 W/m2
91%
W/m2 SI
High Today:
1:11 PM
1048  W/m2
Record:
1480 W/m2
Almanac Irrigation Index5 Station All Time Records Cloud Level
Currently: Afternoon
YTD Avg Temp: 67.5°F
Sunrise: 6:48 am
Sunset: 8:16 pm
Moonrise: 12:56 am
Moonset: 2:51 pm
Full Moon: Aug-03-2020
New Moon: 02:42 UTC
Aug-19-2020
Updated at Midnight
Current ET: 0.36 in
7-Days Rain: 0.00 in
7-Days ET: 2.39 in
7-Day:  2.386 in water in deficit of what evaporated in last 7 days. 2.386 in
August:  3.44 in water in deficit of what evaporated this month. 3.44 in
HIGHS: LOWS:
109.4°F
Aug-3-2011
11.8°F
Jan-17-2018
Daytime Records
  108.3°F
Aug-10-2015
  16.3°F
Feb-02-2011
Nitetime Records
  96.8°F
Aug-04-2011
  13.1°F
Feb-02-2011
ICN:0 | S3C2:1 | Ajax 3.xx
ISS:Ok | CON:4.5 | RCP:99%
Countdown to Fall
Autumn Equinox begins September 22nd at 8:31am CDT
1 Rain season: Jan 1st to Dec 31st.   2 Snow season July 1st to June 30th.   3 Snow manually measured usually around 7AM and 7PM.   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 Air Quality Index is provided by Texas Commission on Environmental Quality.   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.   10 Historical average only to day 12 of just the month of August for this station since 2009.   11 Historical average rain this season to day 12 of August for this station since 2009.
 NWS Weather Forecast  -   Outlook This Afternoon & Tonight
This
Afternoon
This Afternoon: Sunny and hot, with a high near 100. Heat index values as high as 106. South southeast wind around 5 mph.
Hot

Hi 100 °F
NWS forecast: Sunny and hot, with a high near 100. Heat index values as high as 106. South southeast wind around 5 mph.
Tonight

Tonight: Mostly clear, with a low around 80. Southeast wind 5 to 10 mph.
Mostly Clear

Lo 80 °F
NWS forecast: Mostly clear, with a low around 80. Southeast wind 5 to 10 mph.
 NWS Short Term Weather Forecast
Thursday

Thursday: Sunny and hot, with a high near 103. Heat index values as high as 107. South southwest wind 5 to 10 mph.
Hot
Thursday
Night
Thursday Night: Mostly clear, with a low around 81. South wind 10 to 15 mph, with gusts as high as 20 mph.
Mostly Clear
Friday

Friday: Sunny and hot, with a high near 101. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Hot
Friday
Night
Friday Night: Partly cloudy, with a low around 82. South southwest wind 5 to 10 mph.
Partly Cloudy
Saturday

Saturday: Mostly sunny and hot, with a high near 101. South wind 5 to 10 mph.
Hot
Saturday
Night
Saturday Night: Partly cloudy, with a low around 78. East southeast wind around 5 mph.
Partly Cloudy
Sunday

Sunday: Sunny and hot, with a high near 100. Calm wind becoming northeast around 5 mph in the morning.
Hot
Hi 103 °F Lo 81 °F Hi 101 °F Lo 82 °F Hi 101 °F Lo 78 °F Hi 100 °F
Version 6.95b - 03-Apr-2019 - Script by: Scott of BurnsvilleWeatherLIVE.com
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