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  Mechanicsburg PA - NWS Weather Forecast  -  
Overnight's and Tuesday's Outlook
Last updated on 3:42 pm EST Feb 8, 2010
Overnight

Mostly Cloudy
Mostly
Cloudy
Lo 11 °F 		Mostly cloudy, with a low around 11. West wind between 3 and 5 mph.
Tuesday

Snow Likely. Chance for Measurable Precipitation 70%
Snow
Likely
Hi 30 °F 		Snow likely, mainly after 1pm. Cloudy, with a high near 30. Light north wind. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

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Current Conditions ...LIVE...
Measured in Mechanicsburg, PA at Station-ID KPAMECHA5
Updated: @ Feb-09-2010 2:14am - next update at 7:00pm  
Summary / Temperature Wind Rain/Melted Snow Outlook
clear_

Currently 17.7°F, Max: 18.2°F, Min: 14.6°F 17.7°F
 

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Feels like: 17°F

24-hr difference
-1.2°FColder 1.2°F than yesterday at this time.
  Today Yesterday
High: 18.2°F
1:06am 		33.5°F
3:21pm
Low: 14.6°F
12:01am 		10.4°F
6:23am
Records: 64.4°F
1965 		-2.2°F
1934
Wind from SW SW
1.3
Gust:
 0.0 mph
0 Bft - Light Air
Today: 6.0 12:18am
Gust Month:   24.0   Feb 3
Rain Today: 0.00 in
Rain Rate (/hr): 0.00 in
Rain Yesterday: 0.00 in
Storm Rain: 0.00 in
February: 0.13 in
Season Total:1 3.76 in
4 rain days in Feb.
Tuesday
Night
Heavy Snow. Chance for Measurable Precipitation 100%
Heavy
Snow
Humidity & Barometer Almanac Moon
Humidity: 72 % Increased 1% since last hour.
Dew Point: 10.2°F Increased 0.2°F since last hour.
Barometer: 30.122 inHg Falling 0.003 °F/hr
Baro Trend: Steady
Sunrise: 7:08am
Sunset: 5:36pm
Moonrise: 4:21am
Moonset: 1:30pm
Waning Crescent
Waning Crescent, Moon at 25 days in cycle
19%
Illuminated
UV Index Forecast UV Index Forecast
9 Feb 2010   Low   2.3   
10 Feb 2010   Low   2.1   
11 Feb 2010   Low   2.0   
12 Feb 2010
1.9     Low 
Windchill Heating Degree Days Sun
Current: 17.3°F°F
Today: 11.6 °F°F  12:19am
Yesterday: 4.2 °F°F
Last Week: 2.7°F
Record: -6.9°F   Jan-17-2009
Today: 4.2
Feb. to Date: 317.5
2010 to Date: 1444.8
Cooling Degree Days
2010 to Date: 0.0
Hours of Daylight: 10:28:00
Snow3 Irrigation Index4 Station All Time Records Fire Risk
Today: 0.00 in
Yesterday: 15.000 in
February: 24.850 in
Season Total:2 38.200 in
Snow Depth: 21.75 in
3 snow days in Feb.
4 snow days in all 2010.
ICN:1 ISS:Ok
Updated at Midnight
7-Days Rain: 0.134 in   
7-Days ET: 0.000 in   
7-Day Index: 0.134 inPlus 0.134 in than yesterday at this time.
February Index: 0.13 inPlus 0.13 in than yesterday at this time.
Outside Now
Air Density: 1.339 kg/m3
Cloud Height: 2146 ft
HIGHS: LOWS:
107.1°F
Jul-03-1996 		-22.0°F
Jan-21-1994
Record Day(6am-6pm)
    91.6°F on: Aug 24 2008   11.5°F on: Jan 16 2009
Record Nite(6pm-6am)
  80.6°F on: Sep 15 2008 5.0°F on: Jan 17 2009
Current Fire Weather Index
Today:
0.2 of 31
1 Rain season: Jan 1st to Dec 31st.   2 Snow season July 1st to June 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.)



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