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Current Northeast Radar & North America Lightning


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Radar image courtesy of Weather Underground. Lightning Data courtesy of Blitzortung.org and its Contributors.
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Current Clifton Virginia Conditions & NWS Forecast

Updated: @ 25-Jul-2017 4:15am - next update at 4:30am  
Temperature Summary Outlook
Currently: 71.6, Max: 79.0, Min: 71.6 71.6°F
Colder 2.0°F than last hour.

Comfortable

Feels like: 72°F

24-hr difference
-1.8°FColder 1.8°F than yesterday at this time.
  Today Yesterday
High: 79.0°F
12:00am
90.5°F
2:24pm
Low: 71.6°F
4:13am
73.0°F
5:11am
High & Low July 2017
High:  95.9°F
20 July at 1:41 PM
Low:  64.2°F
09 July at 4:50 AM
Max Min:  74.5°F
01 July
Min Max:  81.5°F
06 July
High and Low 2017
High:  95.9°F
20 July at 1:41 PM
Low:  10.0°F
09 January at 2:00 AM
Max Min:  74.5°F
01 July
Min Max:  24.6°F
07 January
Record July
High:  100.4°F
at 2:12 PM on 25 July 2016
Low:  51.6°F
at 5:40 AM on 30 July 2014
Max Min:  76.8°F
at 5:39 AM on 27 July 2016
Min Max:  72.0°F
at 10:57 PM on 04 July 2016
Station All Time Record
High:  100.4°F
at 2:12 PM on 25 July 2016
Low:  1.0°F
at 7:23 AM on 23 January 2014
Max Min:  77.5°F
at 6:27 AM on 13 August 2016
Min Max:  16.7°F
at 12:04 PM on 16 February 2015
Records began on 24 December 2012
Wind Chill
Now:  71.6°F
Coldest Wind Chill
Today:  71.6°F
at 4:13am
Yesterday:  73.0°F
at 5:11am
July 2017  64.2°F
09 July at 4:50 AM
2017  4.1°F
08 January at 2:24 AM
Station July  51.6°F
at 5:40 AM on 30 July 2014
Station All Time  -15.8°F
at 1:57 AM on 21 February 2015
Records began on 24 December 2012
Degree Days
Heating Degree Days
Today: 0.0 Degree Days
Yesterday: 0.0 Degree Days
Cooling Degree Days
Today: 1.9 Degree Days
Yesterday: 15.5 Degree Days
Heat Index
Now:  71.6°F
Warmest Heat Index
Today:  79.0°F
at 00:00
Yesterday:  94.3°F
at 14:21
July 2017  105.0°F
14 July at 3:50 PM
2017  105.0°F
14 July at 3:50 PM
Station Record July  114.2°F
at 12:45 PM on 19 July 2013
Station All Time  114.2°F
at 12:45 PM on 19 July 2013
Records began on 24 December 2012
Partly cloudy Partly cloudy
 Wind from NW NW
0.8
Gust:
3.0 mph
0 Bft - Calm
Today: 12.1 mph 1:01am
Gust Month: 22.1 mph July 14
Rain Today:  0.00 in
Rain Rate /hr  0.00 in
Rain Last Hour:  0.00 in
Rain 24hrs:  0.02 in
Wind
Station High July 2017
High Gust:  22.1 mph
14 July at 4:10 PM
High Average:  11.9 mph
22 July at 5:40 PM
Station High 2017
High Gust:  30.1 mph
08 March at 3:21 AM
High Average:  22.7 mph
22 March at 10:08 AM
Station Record July
High Gust:  22.1 mph
at 4:10 PM on 14 July 2017
High Average:  12.3 mph
at 4:11 PM on 18 July 2016
Station All Time Record
High Gust:  39.3 mph
at 10:04 PM on 14 February 2015
High Average:  22.7 mph
at 10:08 AM on 22 March 2017
Records began on 24 December 2012
Wind Run
Today:  13.5 miles
Yesterday:  36.2 miles
Highest Wind Run
July 2017  57.8 miles
01 July
2017  179.1 miles
14 March
July  93.0 miles
on 04 July 2014
Station All Time  246.9 miles
on 15 February 2015
Records began on 24 December 2012
Rain
Rain Today: 0.00 in
Rain Rate (/hr): 0.00 in
Rain Yesterday: 0.02 in
This Month: 4.40 in
Season Total: 22.02 in
1 day since last rain.
Days Since Last Dry Day: 3
Station High July 2017
High Day:  2.00 in
06 July
High Hour:  0.69 in
06 July at 8:27 AM
High Rain Rate /hr:  3.00 in
04 July at 7:47 PM
Station High 2017
High Day:  2.00 in
06 July
High Hour:  0.72 in
18 May at 8:23 PM
High Rain Rate /hr:  3.00 in
04 July at 7:47 PM
Station Record July
High Day:  2.00 in
on 06 July 2017
High Hour:  1.68 in
at 7:48 PM on 28 July 2015
High Rain Rate /hr:  3.84 in
at 8:37 PM on 28 July 2016
Station All Time Record
High Day:  3.02 in
on 30 April 2014
High Hour:  1.98 in
at 4:12 PM on 20 March 2015
High Rain Rate /hr:  5.03 in
at 5:35 PM on 03 June 2016
High Month:  7.18 in
April 2014
Records began on 24 December 2012
Overnight

Overnight: Partly Cloudy
Partly Cloudy
Tuesday

Tuesday: Mostly Sunny
Mostly Sunny
Tuesday
Night
Tuesday Night: Partly Cloudy
Partly Cloudy
Lightning VA MD DC WV DE
Viginia Lighting
Radar Washington DC Metro Area
Local Radar
Storm Prediction Center Activity Chart
SPC Activity
Humidity & Barometer
Humidity: 67 % Increased 2.0% since last hour.
Dew Point: 60.1°F Decreased 0.9°F since last hour.
Barometer: 30.03 inHg Rising 0.02  inHg/hr
Baro Trend: Rising
Today
Pressure High:  30.04 in
Pressure Low:  29.94 in
Dewpoint High:  67.6 °F
Dewpoint Low:  59.9 °F
Humidity High:  69%
Humidity Low:  63%
Station Record
Pressure High:  31.41 in
at 12:14 PM on 23 March 2017
Pressure Low:  29.12 in
at 5:28 PM on 12 March 2014
Dewpoint High:  79.7 °F
at 11:26 AM on 19 July 2013
Dewpoint Low:  -58.6 °F
at 6:50 PM on 19 February 2017
Records began on 24 December 2012
Snow
Snow Depth: 0 in
Snowfall Today: No snow today
Storm Total: 0 in
Total Season Snow: 0 in
Total Last Season: 5.2 in
Fire Danger
firedanger
Almanac
Sunrise: 6:05am
Sunset: 8:28pm
Moonrise: 8:30am
Moonset: 10:03pm
Day Length:  14:23
Dawn:  05:35
Dusk:  20:58
Daylight Length:  15:23
 There will be 1min 39s less daylight tomorrow
Cloud Base
cloudbase
CB: 2615 ft
UV Index Forecast Today
25-Jul-2017

8.5  Very High 
UV Index Forecast Tomorrow
26-Jul-2017

8.5  Very High 
Air Quality Index
Current AQI 38
Good
Sunlight
14 hrs 20 min 54 sec
of Sunlight Today
Which is
1 min 42 sec Shorter
Than Yesterday

(Noon)
graph (Midnight)
Legend
Moon
Waxing Crescent
Waxing Crescent, Moon at 2 days in cycle
5 %
Illuminated
Trends
These graphs present the temperature, pressure, rainfall, and wind speed trends for the last 24 hours.
The thumbnail graphs are sampled every ten minutes.
The large graphs are sampled every minute.
Weather Graphs
Click on weather description tab below to display the corresponding graph in the panel above.
Wind Graph Thumbnail Temperature Graph Thumbnail Pressure Graph Thumbnail Rain Graph Thumbnail
Wind Direction Thumbnail Temp Min/Max Graph Thumbnail Humidity Graph Thumbnail Today's Rainfall Graph Thumbnail Daily Rain Graph Thumbnail
 NWS Weather Forecast  - Outlook: Overnight & Tuesday
Overnight

Overnight: Partly Cloudy
Partly Cloudy

Lo 68 °F
NWS forecast: Partly cloudy, with a low around 68. Northwest wind around 7 mph.
  Tuesday

Tuesday: Mostly Sunny
Mostly Sunny

Hi 83 °F
NWS forecast: Mostly sunny, with a high near 83. North northwest wind 6 to 10 mph.
 NWS Weather Forecast  - Five Day Outlook for Overnight through Friday Night - Last Update: Tue, 25-Jul-2017 1:27am EDT
Overnight

Overnight: Partly Cloudy
Partly Cloudy
Tuesday

Tuesday: Mostly Sunny
Mostly Sunny
Tuesday
Night
Tuesday Night: Partly Cloudy
Partly Cloudy
Wednesday

Wednesday: Partly Sunny
Partly Sunny
Wednesday
Night
Wednesday Night: Partly Cloudy
Partly Cloudy
Thursday

Thursday: Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Thursday
Night
Thursday Night: Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Friday

Friday: Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Friday
Night
Friday Night: Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Lo 68 °F Hi 83 °F Lo 66 °F Hi 84 °F Lo 69 °F Hi 89 °F Lo 72 °F Hi 86 °F Lo 67 °F

NWS Forecast Maps

NOAA Forecast Map for Today


Forecast Map for Today

NOAA Forecast Map for Tomorrow


Forecast Map for Tomorrow
Forecast map for Today courtesy of NOAA. Forecast map for Tomorrow courtesy of NOAA.
Countdown to Fall
 Autumn Equinox begins September 22nd at 4:02pm   EDT  
 

 

Random Weather Facts

Recycling
Recycling 1 aluminum can saves enough energy to run your TV for 3 hours. Recycling aluminum cans saves 95% of the energy used to make cans from virgin ore.

Today in Weather History

Weather History for July 25
 
1956
The Andrea Doria sank in dense fog near Nantucket Lightship, MA. The ship was rammed by the Swedish-American liner, Stockholm, forty-five miles off the coast of Massachusetts. Fifty-two persons drowned, or were killed by the impact. (David Ludlum) (The Weather Channel)

1986
Tremendous hailstones pounded parts of South Dakota damaging crops, buildings and vehicles. Hail piled two feet deep at Black Hawk and northern Rapid City. Hail an inch and a quarter in diameter fell for 85 minutes near Miller and Huron, piling up to depths of two feet. (The Weather Channel)