Tornado Watch TORNADO WATCH - Collin County
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Updated: 26-Mar-2017 @ 5:40pm  
Temperature Current Conditions Forecast / Storm Prediction
Currently Outside: Colder 1°F than last hour.

80.1°F

Warm
High Today
84.0°F
3:20 PM
Low Today
52.4°F
6:08 AM
Yest High
71.0°F
5:01 PM
Yest Low
52.4°F
7:45 AM
Sta* High
84.9°F
2012
Sta* Low
31.9°F
2013
* This Station's Records Since 10/2009
<!-- fixupCondition in='Cloudy/Dry ' out='Cloudy, Dry' ocnt='2' --><!-- vals split on slash -->
Cloudy, Dry Cloudy, Dry

Wind from SSE Wind:  SSE
10.6

Gusting to:
6.0 mph
Current Rain Rain:
0.00 in
Chandler Burning Index: LOW Current CBI
Fire Danger:
14.9 of 100
This
Afternoon
This Afternoon: A 30 percent chance of showers and thunderstorms. Some of the storms could be severe.  Partly sunny, with a high near 81. South wind around 20 mph, with gusts as high as 30 mph.
Severe
T-Storms

Tonight

Tonight: Showers and thunderstorms likely, mainly before 10pm. Some of the storms could be severe.  Mostly cloudy, with a low around 59. South wind 10 to 20 mph, with gusts as high as 25 mph.  Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Severe
T-Storms

Monday

Monday: Mostly sunny, with a high near 77. West wind 5 to 10 mph becoming north northwest in the afternoon.
Mostly Sunny

Hi 81 °F Lo 59 °F Hi 77 °F
SPC Activity Map
Dew Point Liquid Precipitation Wind Speed Sun/Moon
Current: Increased 0.1°F since last hour. 62.5°F
Last Hour: Increased 0.1°F since last hour. 0.1°F
High 2:40 PM: 64.5°F
Low 12:02 AM: 47.9°F
Record High: 80.6°F on
21-Jul-2014
Record Low: -3.6°F on
27-Jan-2014
Wetbulb: 69.0°F
Rain Today
rain graph

Today: 0.00 in
Yesterday: 0.00 in
Last 7 Days: 0.49 in
Mar Rain: 1.02 in
Mar to Date
  Avg:10
2.82 in
Mar to Date
  Diff from Avg:10
Under 1.8 in for the month 1.80 in
Mar Avg: 3.12 in
Diff from Avg: Under 2.1 in for the month 2.10 in
Season:1 8.29 in
YTD
  Avg:11
8.01 in
YTD
  Diff from Avg:11
Over 0.28 in for the year 0.28 in
Last Rain
Time/Date:
24-Mar-2017
at 12:09 PM
20 rain days in 2017
4 days in March
1 day since last rain
Current: SSE  10.6 mph
1Hr Average: 10.2 mph
Wind Run: 102.50 miles
Wind Gust
Current: 6.0 mph mph
Today: 27.6 mph 2:18 PM
Month: 40.0 mph 6-Mar
Year: 50.0 mph 15-Jan
Record Gust: 55.2 mph
8-Mar-2016
Sunlight:
12 hrs 20 min
of Sunlight Today
graph 51.4% 48.6%
Which is
2 min 03 sec Longer
Than Yesterday
 

NEW MOON, 28 days, 7 hours, 43 minutes in cycle
0%
Illuminated
Humidity Barometer
Current: Increased 2% since last hour. 55%
Last Hour: Increased 2% since last hour. 2%
High 6:16 AM: 87%
Low 3:22 PM: 47%
Record High: 100%
6-Oct-2009
Record Low: 14%
4-Mar-2012
Current: Falling 0.025  inHg/hr 29.678 inHg
Last Hour: Falling slowly
High 12:41 AM: 29.869 in.
Low 5:36 PM: 29.678 in.
Record High: 30.806 inHg
7-Jan-2017
Record Low: 29.323 inHg
21-Jan-2017
Cooling Degree Days Snow3 Heat Index Air
Today: 0.0
Mar: 65.0
2017 to Date: 102.5
Heating Degree Days
2017 to Date: 840.4
Today: 0.00 in
Yesterday: 0.00 in
Mar Snow: Under 1.614 in for the month 0.00 in
Mar Avg: 1.61 in
Diff from Avg: -1.61 in
Season Total:2 0.10 in
Snow Depth: 0.00 in
0 snow days in March
1 snow day this season.2
First Snow of Season:
6-Jan-2017
Average 1st Snow:
12 of Dec
Current: 81.4°F
High 3:19pm: 85.0°F
Yesterday: 71.0°F
Record: 121.5°F
12-Aug-2016
Quality
Index6:

57


Moderate

Density:
1.159 kg/m3
Current UV Index Current Solar Energy
0.0
Sunburn in
N/A Minutes
Highest:
1:42 PM
5.5
109 W/m2
27%
W/m2 SI Solar % SI
High Today:
1:52 PM
925  W/m2
Record:
1480 W/m2
Almanac Irrigation Index5 Station All Time Records Cloud Level
Currently: Afternoon
YTD Avg Temp: 56.3°F
Sunrise: 7:22 am
Sunset: 7:42 pm
Moonrise: 6:31 am
Moonset: 6:20 pm
Full Moon: 12-Mar-2017
New Moon: 02:58 UTC
28-Mar-2017
Updated at Midnight
Current ET: 0.18 in
7-Days Rain: 0.49 in
7-Days ET: 1.38 in
7-Day:  0.89 in water in deficit of what evaporated in last 7 days. 0.89 in
March:  2.44 in water in deficit of what evaporated this month. 2.44 in
HIGHS: LOWS:
109.4°F
3-Aug-2011
12.0°F
2-Feb-2011
Daytime Records
  108.3°F
10-Aug-2015
  16.3°F
02-Feb-2011
Nitetime Records
  96.8°F
04-Aug-2011
  13.1°F
02-Feb-2011
ICN:5 | S3C2:1 | Ajax 3.xx
ISS:Ok | CON:4.7 | RCP:98%
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.   10 Historical average only to day 26 of just the month of March for this station since 2009.   11 Historical average rain this season to day 26 of March for this station since 2009.
 NWS Weather Forecast  -   Outlook This Afternoon & Tonight
This
Afternoon
This Afternoon: A 30 percent chance of showers and thunderstorms. Some of the storms could be severe.  Partly sunny, with a high near 81. South wind around 20 mph, with gusts as high as 30 mph.
Severe
T-Storms


Hi 81 °F
NWS forecast: A 30 percent chance of showers and thunderstorms. Some of the storms could be severe. Partly sunny, with a high near 81. South wind around 20 mph, with gusts as high as 30 mph.
Tonight

Tonight: Showers and thunderstorms likely, mainly before 10pm. Some of the storms could be severe.  Mostly cloudy, with a low around 59. South wind 10 to 20 mph, with gusts as high as 25 mph.  Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Severe
T-Storms


Lo 59 °F
NWS forecast: Showers and thunderstorms likely, mainly before 10pm. Some of the storms could be severe. Mostly cloudy, with a low around 59. South wind 10 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
 NWS Short Term Weather Forecast
Monday

Monday: Mostly sunny, with a high near 77. West wind 5 to 10 mph becoming north northwest in the afternoon.
Mostly Sunny

Monday
Night
Monday Night: Partly cloudy, with a low around 58. East northeast wind around 5 mph.
Partly Cloudy

Tuesday

Tuesday: A 20 percent chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 79. East wind 10 to 15 mph becoming south southeast in the afternoon. Winds could gust as high as 20 mph.
Partly Sunny
then Slight
Chance
T-storms
Tuesday
Night
Tuesday Night: Showers and thunderstorms likely, mainly after 1am.  Mostly cloudy, with a low around 65. South southeast wind around 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 70%.
T-storms
Likely

Wednesday

Wednesday: Showers and thunderstorms, mainly before 1pm.  High near 78. South southeast wind around 15 mph, with gusts as high as 20 mph.  Chance of precipitation is 80%.
T-storms

Wednesday
Night
Wednesday Night: A 20 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 56. South southwest wind 5 to 10 mph.
Slight Chance
T-storms

Thursday

Thursday: Partly sunny, with a high near 71. West wind 10 to 15 mph, with gusts as high as 20 mph.
Partly Sunny

Hi 77 °F Lo 58 °F Hi 79 °F Lo 65 °F Hi 78 °F Lo 56 °F Hi 71 °F
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