Sunrise Sunrise: 06:06 Sunset Sunset: 18:16 |MoonriseMoonrise: 07:18 MoonsetMoonset: 22:48
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New interactive graphical forecast page

Hi folks, please take a moment to have a look at the beta version of our new interactive graphical forecast here, this is based on our very own forecast runs of which can be see here for the main forecast page and here for the hourly breakdown of our forecast, the links can be found in the forecast section in the menu on the left. Please let me know how you get on with it using the contact from the menu on the left.

Updated: @ 20/03/2010 02:00 - next update at 01:00  
Summary / Temperature Wind Rain/Melted Snow Outlook
Overcast Night
Currently 10.6, Max: 10.6, Min: 10.3 10.6°C
Warmer 0.1°C than last hour.
Feels like: 9°C


24-hr difference
1.8°CWarmer 1.8°C than yesterday at this time.

Cloud Base
 
Wind from SSW SSW
10.5
Gust:
 14.2
3 Bft - Gentle Breeze
Today: 21.8 01:55
Gust Month:   26.7   Mar 18
Rain Today: 0.1 mm
Rain Rate (/hr): 0.0 mm
Rain Yesterday: 6.4 mm
Storm Rain: 0.0 mm
March: 8.3 mm
Season Total:1 93.1 mm
No rain for 0 Days
4 rain days in Mar.
Main Snow data at the bottom
Next 24hrs



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Humidity & Barometer Almanac Moon
Humidity: 98 %  
Dew Point: 10.3°C Increased 0.1°C since last hour.
Barometer: 1003.0 mb  
Baro Trend: Steady
Sunrise: 06:06
Sunset: 18:16
Moonrise: 07:18
Moonset: 22:48
Waxing Crescent
Waxing Crescent, Moon at 3 days in cycle
17%
Illuminated
UV Index and Forecast Solar Radiation
     UV Now  None   0.0
High: 0.0 @ 00:01
21 Mar 2010   Low   2.3   
22 Mar 2010   Low   2.2   
0 W/m2 (0 %)
High: 0 @  00:00
Solar Noon: 11:51
Windchill Heating Degree Days Sun
Current: 7.9°C
Today: 10.3°C  00:00
Yesterday: 3.2°C
Last Week: -3.5°C
Record: -12.8°C   01/06/2009
Today: 0.6
Mar. to Date: 271.7
2010 to Date: 1231.4
Cooling Degree Days
2010 to Date: 0.0
Daylight: 12:10
(0:03)
Snow3 Irrigation Index4 Station All Time Records Fire Risk
Today: 0.0cm
Yesterday: 0.0cm
March: 0cm
Season Total:2 29.7cm
Snow Depth: 0cm
0 snow day in Mar.
27 snow days in all 2010.2
Snow fall Height:5 m
Updated at Midnight
7-Days Rain: 6.6 mm   
7-Days ET: 0.0 mm   
7-Day Index: 6.6 mmPlus 6.6 mm than yesterday at this time.
March Index: 0.327 mmPlus 0.327 mm than yesterday at this time.
Outside Now
Air Density: 1.226 kg/m3
Cloud Height: 584 m
HIGHS: LOWS:
28.1°C
30/06/2009 		-7.7°C
06/01/2009
Record Day(6am-6pm)
    25.3 C on: 27 Jul 2008   -5.2C on: 06 Jan 2009
Record Night(6pm-6am)
  20.5C on: 01 Jul 2009 -5.1C on: 07 Jan 2010
Current Fire Weather Index
Today:
8.3 of 31
1 Rain season: Jan 1st to Dec 31st.   2 Snow season September 1st to April 30th.   3 Snow manually measured
4 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.)
5 The height above ground where snow is likely to fall at the station

 Northants Weather Forecast  -  Rest of tonight's and Saturday's Outlook                    Extended Forecast
Rest of
tonight
Cloudy
Cloudy
10°C		 Cloudy. A slight chance of rain. Low 10°C. Wind south-southwest around 15 mph. Chance of precipitation less than 20 percent. Precipitation mostly less than 2 mm.
 Saturday

Chance rain
Chance rain
13°C		 Dense overcast. A chance of rain in the morning, then a slight chance of rain in the afternoon. High 13°C. Wind south-southwest around 16 mph in the morning, becoming west-southwest around 11 mph, gusting to 19 mph, in the afternoon. Chance of precipitation 60 percent. Precipitation mostly between 2 and 5 mm.

Random Weather Facts
What's the difference between Humidity and Relative Humidity?
(1) Absolute Humidity, often just referred to as 'the humidity', is a measure of the actual amount of water vapour in a particular sample of air: measured as a partial pressure (vapour pressure/hPa or millibars); a mixing ratio (gm water vapour/kg of dry air), dew point etc.
(2) Relative Humidity - expressed commonly as a percentage value, is the ratio of the actual amount of water vapour present in a sample (the Absolute Humidity) to that amount that would be needed to saturate that particular sample.

The two terms are not interchangeable and can lead to confusion; e.g. on a cold, raw winter's day close to the east coast of England, the dew point might be 1 degC and an air temperature of just 2 degC...this would give a RH of=93%; a 'high' Relative Humidity, yet few would refer to such conditions as 'humid'. Conversely, on a hot summer's day, with a dew point of 18 degC, and an afternoon temperature of 30 degC, that's a RH=49%; a 'low' Relative Humidity, but high Absolute Humidity.