Duncannon, PA

11:42 PM EST on February 11, 2012 (GMT -0500)
Elev: 538 ft
Lon: 77.0° W
Lat: 40.4° N
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Tropical Weather: Tropical Cyclone Giovanna (South Indian Ocean) Tropical Cyclone Jasmine (Southern Pacific)
Weather Summary
Weather Underground midday recap for Saturday, February 11, 2012.

Cold air poured into the Plains on Saturday, while snow showers developed in parts of the Northeast. A strong low pressure system that brought heavy rain to the Southern Plains and Southeast has advanced eastward and off the East Coast into the Atlantic Ocean. However, counter-clockwise flow around this system continued to push moisture into the Northeast, Great Lakes, and Ohio River Valley. In addition to cool air over the region, this allowed for snow showers to develop across Michigan and the Ohio River Valley. Snowfall accumulations ranged from 1 to 3 inches in most areas, with up to 5 inches at higher elevations of the Central Appalachians. Coastal regions remained slightly warmer, which maintained light rain showers from southern Maine through Virginia.

Behind this system, a dominant ridge of high pressure continued to build over the Plains. This system started to stretch eastward over the Mississippi Valley. Flow around this system pulled cold air in from central Canada and kept seasonable cool temperatures over the Central US. High temperatures only reached into the 30s in parts of northern Texas, while the Central and Northern Plains saw highs in the teens, with overnight lows in the negative teens.

Out West, cool conditions persisted with areas of wet weather as a trough of low pressure moved over the Pacific Northwest and into the Intermountain West and Great Basin. Rainfall totals and high elevation snow accumulation remained light. A few light rain showers extended into California as moist onshore flow persisted.
Weather Underground midday recap for Saturday, February 11, 2012.

Cold air poured into the Plains on Saturday, while snow showers developed in parts of the Northeast. A strong low pressure system that brought heavy rain to the Southern Plains and Southeast has advanced eastward and off the East Coast into the Atlantic Ocean. However, counter-clockwise flow around this system continued to push moisture into the Northeast, Great Lakes, and Ohio River Valley. In addition to cool air over the region, this allowed for snow showers to develop across Michigan and the Ohio River Valley. Snowfall accumulations ranged from 1 to 3 inches in most areas, with up to 5 inches at higher elevations of the Central Appalachians. Coastal regions remained slightly warmer, which maintained light rain showers from southern Maine through Virginia.

Behind this system, a dominant ridge of high pressure continued to build over the Plains. This system started to stretch eastward over the Mississippi Valley. Flow around this system pulled cold air in from central Canada and kept seasonable cool temperatures over the Central US. High temperatures only reached into the 30s in parts of northern Texas, while the Central and Northern Plains saw highs in the teens, with overnight lows in the negative teens.

Out West, cool conditions persisted with areas of wet weather as a trough of low pressure moved over the Pacific Northwest and into the Intermountain West and Great Basin. Rainfall totals and high elevation snow accumulation remained light. A few light rain showers extended into California as moist onshore flow persisted.
Duncannon Weather at a Glance
Updated 11:42 PM EST
Elevation
351 ft
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Now
Light Snow
Light Snow
Temperature
24.3 °F
Feels Like 24 °F
Wind(mph)
2.0
Sunrise / Set
7:07 AM
5:38 PM
Moon
Waning Gibbous
Tonight
Chance of Snow 16 °F
Chance of Snow
60% chance of precipitation
Tomorrow
Chance of Snow 32 °F
Chance of Snow
20% chance of precipitation
Tomorrow Night
Clear 18 °F
Clear
Monday
Clear 38 | 22 °F
Clear
Tuesday
Chance of Snow 40 | 27 °F
Chance of Snow
30% chance of precipitation
Wednesday
Chance of Snow 43 | 27 °F
Chance of Snow
20% chance of precipitation
Tomorrow is forecast to be Cooler than today.
Conditions
Pressure
29.89 in
Visibility
2.5 miles
Clouds
Few 1800 ft
Mostly Cloudy 2600 ft
Overcast 3600 ft
Moisture
Humidity
68%
Rainfall
0.09 in
Snow Depth
Not available.
METAR
SPECI KCXY 120430Z AUTO 31010KT 2 1/2SM -SN FEW018 BKN026 OVC036 M06/M09 A2989 RMK AO2 PK WND 35027/0410 SNE03B20 P0000 $
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Weather Radio
Temperature
Windchill
24 °F
Dew Point
15 °F
Wind
Speed / Dir
2.0 mph from NW
Wind Gust
7.0 mph
Health
UV
0 out of 16
Pollen
.40 out of 12
Pollen Forecast
Air Quality
Not available.
Flu Activity
Sporadic
View Flu Map
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Regional Forecast for Perry
Overnight
nt_chancesnow Mostly cloudy. Scattered snow showers. Additional snow accumulation less than one inch. Brisk and colder with lows around 15. Northwest winds 15 to 25 mph with gusts up to 35 mph. Chance of snow 30 percent.
Sunday
chancesnow Partly sunny with a 20 percent chance of snow showers. Brisk with highs in the lower 30s. West winds 15 to 25 mph with gusts up to 35 mph.
Sunday Night
nt_sunny Mostly clear. Lows around 20. West winds 10 to 15 mph.
Monday
sunny Sunny. Highs in the upper 30s. West winds 10 to 15 mph.
Monday Night
nt_partlycloudy Partly cloudy in the evening...then becoming cloudy. Lows in the lower 20s. Southwest winds around 5 mph.
Tuesday
chancesnow Cloudy with a 40 percent chance of snow showers. Highs around 40.
Tuesday Night
nt_cloudy Cloudy. Lows in the upper 20s.
Wednesday
cloudy Mostly cloudy. Highs in the mid 40s.
Wednesday Night
nt_cloudy Mostly cloudy. Lows in the upper 20s.
Thursday
snow Partly sunny with a chance of rain and snow showers. Highs in the mid 40s. Chance of precipitation 30 percent.
Thursday Night
nt_snow Mostly cloudy with a chance of rain and snow showers. Lows around 30. Chance of precipitation 30 percent.
Friday
snow Partly sunny with a chance of rain and snow showers. Highs in the lower 40s. Chance of precipitation 30 percent.
Friday Night
nt_cloudy Mostly cloudy. Lows in the mid 20s.
Saturday
snow Partly sunny with a chance of rain and snow showers. Highs in the lower 40s. Chance of precipitation 30 percent.
Source: NWS at 10:31 PM EST on February 11, 2012
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Nowcast as of 10:03 PM EST on February 11, 2012
An area of light to moderate snow will taper to scattered snow showers will through midnight. Less than an inch of additional snow is expected during this time. Also expect gusty winds and temperatures below freezing. Any untreated roads and walkways will be icy...so use extra caution if traveling tonight.
Forecast
View Calendar 7-Day Weather Forecast for 17020
Sunday, 12
Chance of Snow
32 | 18 °F
Chance of Snow
Chance of
Precipitation
20%
Monday, 13
Clear
38 | 22 °F
Clear
Chance of
Precipitation
0%
Tuesday, 14
Chance of Snow
40 | 27 °F
Chance of Snow
Chance of
Precipitation
30%
Wednesday, 15
Chance of Snow
43 | 27 °F
Chance of Snow
Chance of
Precipitation
20%
Thursday, 16
Chance of Snow
45 | 31 °F
Chance of Snow
Chance of
Precipitation
30%
Friday, 17
Chance of Snow
43 | 25 °F
Chance of Snow
Chance of
Precipitation
30%
Saturday, 18
Chance of Snow
41 | NA
Chance of Snow
Chance of
Precipitation
30%
Source: NWS at 10:31 PM EST on February 11, 2012
Regional Forecast for Perry
Overnight
nt_chancesnow Mostly cloudy. Scattered snow showers. Additional snow accumulation less than one inch. Brisk and colder with lows around 15. Northwest winds 15 to 25 mph with gusts up to 35 mph. Chance of snow 30 percent.
Sunday
chancesnow Partly sunny with a 20 percent chance of snow showers. Brisk with highs in the lower 30s. West winds 15 to 25 mph with gusts up to 35 mph.
Sunday Night
nt_sunny Mostly clear. Lows around 20. West winds 10 to 15 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 17 | 7 26 | 10 26 | 11 22 | 11
Wind 13 mph NW 17 mph WNW 12 mph WNW 7 mph West
Humidity 63% 49% 51% 62%
Chance of Precip. 70% 20% 20% 0%
Cloud Cover 67% 57% 56% 14%
Conditions Partly Cloudy Chance of Snow Partly Cloudy Clear
Sunrise & Sunset
7:07 AM
5:38 PM
Source: NWS at 10:31 PM EST on February 11, 2012
Regional Forecast for Perry
Monday
sunny Sunny. Highs in the upper 30s. West winds 10 to 15 mph.
Monday Night
nt_partlycloudy Partly cloudy in the evening...then becoming cloudy. Lows in the lower 20s. Southwest winds around 5 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 20 | 11 32 | 14 33 | 14 27 | 16
Wind 7 mph West 10 mph West 5 mph West 0 mph WSW
Humidity 66% 47% 46% 61%
Chance of Precip. 0% 0% 0% 10%
Cloud Cover 18% 4% 12% 43%
Conditions Clear Clear Clear Partly Cloudy
Sunrise & Sunset
7:06 AM
5:39 PM
Source: NWS at 10:31 PM EST on February 11, 2012
Regional Forecast for Perry
Tuesday
chancesnow Cloudy with a 40 percent chance of snow showers. Highs around 40.
Tuesday Night
nt_cloudy Cloudy. Lows in the upper 20s.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 25 | 18 34 | 21 37 | 25 32 | 25
Wind 1 mph SE 3 mph South 1 mph South 0 mph East
Humidity 73% 58% 63% 76%
Chance of Precip. 10% 30% 30% 30%
Cloud Cover 91% 97% 97% 93%
Conditions Overcast Chance of Snow Chance of Snow Chance of Snow
Sunrise & Sunset
7:04 AM
5:40 PM
Source: NWS at 10:31 PM EST on February 11, 2012
Regional Forecast for Perry
Wednesday
cloudy Mostly cloudy. Highs in the mid 40s.
Wednesday Night
nt_cloudy Mostly cloudy. Lows in the upper 20s.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 29 | 25 38 | 27 38 | 29 33 | 26
Wind 0 mph SSE 4 mph East 4 mph West 2 mph WNW
Humidity 84% 63% 66% 74%
Chance of Precip. 20% 20% 20% 20%
Cloud Cover 93% 87% 87% 49%
Conditions Chance of Snow Chance of Snow Chance of Snow Partly Cloudy
Sunrise & Sunset
7:03 AM
5:41 PM
Source: NWS at 10:31 PM EST on February 11, 2012
Regional Forecast for Perry
Thursday
snow Partly sunny with a chance of rain and snow showers. Highs in the mid 40s. Chance of precipitation 30 percent.
Thursday Night
nt_snow Mostly cloudy with a chance of rain and snow showers. Lows around 30. Chance of precipitation 30 percent.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 31 | 25 39 | 27 40 | 29 35 | 27
Wind 1 mph NW 5 mph ENE 4 mph SSW 2 mph South
Humidity 80% 61% 63% 71%
Chance of Precip. 10% 10% 30% 30%
Cloud Cover 49% 66% 66% 80%
Conditions Partly Cloudy Chance of Snow Chance of Snow Chance of Snow
Sunrise & Sunset
7:02 AM
5:42 PM
Source: NWS at 10:31 PM EST on February 11, 2012
Regional Forecast for Perry
Friday
snow Partly sunny with a chance of rain and snow showers. Highs in the lower 40s. Chance of precipitation 30 percent.
Friday Night
nt_cloudy Mostly cloudy. Lows in the mid 20s.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 32 | 27 39 | 27 38 | 25 32 | 23
Wind 4 mph NW 10 mph WNW 7 mph West 5 mph West
Humidity 77% 61% 59% 67%
Chance of Precip. 30% 30% 30% 30%
Cloud Cover 80% 65% 65% 66%
Conditions Chance of Snow Chance of Snow Chance of Snow Chance of Snow
Sunrise & Sunset
7:02 AM
5:42 PM
Source: NWS at 10:31 PM EST on February 11, 2012
Regional Forecast for Perry
Saturday
snow Partly sunny with a chance of rain and snow showers. Highs in the lower 40s. Chance of precipitation 30 percent.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 29 | 22 35 | 22 34 | 20 32 | 23
Wind 6 mph WNW 12 mph West 9 mph West 5 mph West
Humidity 71% 59% 54% 67%
Chance of Precip. 20% 20% 30% 30%
Cloud Cover 66% 50% 50% 66%
Conditions Chance of Snow Chance of Snow Chance of Snow Chance of Snow
Sunrise & Sunset
7:02 AM
5:42 PM
BestForecast (what's this?)
Nearby
History & Almanac
February 11, 2012 Max Temp Min Temp
Normal (KMDT) 40 °F 24 °F
Record (KMDT) 63 °F (2009) -10 °F (1899)
Yesterday 40 °F 21 °F
Yesterday's Heating Degree Days: 34
Choose a date
Earthquake Activity
City Distance Mag. Time & Date
No recent earthquake activity has been reported nearby.
Minimum magnitude displayed is 2.5.
Astronomy
Feb. 11, 2012 Rise Set
Actual Time 7:07 AM EST 5:38 PM EST
Civil Twilight 6:39 AM EST 6:06 PM EST
Nautical Twilight 6:07 AM EST 6:38 PM EST
Astronomical Twilight 5:35 AM EST 7:10 PM EST
Moon 10:24 PM EST (2/11) 8:47 AM EST (2/11)
Length Of Visible Light 11h 27m
Length of Day
10h 30m
Tomorrow will be 2m 26s longer.
Waning Gibbous, 78% of the Moon is Illuminated
Today
Waning Gibbous
Feb 14
Last Quarter
Feb 21
New
Feb 29
First Quarter
Mar 8
Full
Today's Extremes
State Highs State Lows
38 °F
Reading
38 °F
Philadelphia
38 °F
Allentown
37 °F
Selinsgrove
37 °F
Pottstown
10 °F
Bradford
10 °F
Johnstown
12 °F
Du Bois
14 °F
Indiana
14 °F
Clearfield
Source: NWS
Snow Depth
Station Depth Elevation
No new snow has been reported.
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Snow Storm
Arctic Front Roars in
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New England Coastal Snow Event....
By Blizzard92 14 minutes ago
Travel & Activities
Travel Planning
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Aviation
City Temp. Conditions Updated
Harrisburg 21 °F Light Snow 11:30 PM EST
Middletown 22 °F Light Snow 10:56 PM EST
Fort Indiantown Gap 19 °F Light Drizzle 11:28 PM EST
Selinsgrove 20 °F Overcast 10:53 PM EST
Flight To ETA Status
ASH2620
Charlotte, NC
KMDT 11:42PM On Time
PDT4217
Philadelphia, PA
KMDT 11:52PM On Time
Flight Tracker by FlightAware FlightAware
Type Condition
Flight Rule: IFR (KCXY)
Wind Speed: 10.0 kts.
Wind Dir: 307° (NW)
Ceiling: 2600 ft

SPECI KCXY 120430Z AUTO 31010KT 2 1/2SM -SN FEW018 BKN026 OVC036 M06/M09 A2989 RMK AO2 PK WND 35027/0410 SNE03B20 P0000 $

Nearby Events
Event Date Forecast
CASH BINGO 6:00 PM EST 2012-02-13 Partly Cloudy, 35°F
Ragamala Dance-Sacred Earth 7:00 PM EST 2012-02-15 Partly Cloudy, 43°F
Zumba Fitness Classes 6:00 PM EST 2012-02-15 Partly Cloudy, 44°F
Dellvilee UMC Relay for Life Fundraiser 4:00 PM EST 2012-02-18 Chance of Snow, 35°F
Event data courtesy eviesays.com
Sports
Event Date Forecast
Budweiser Shootout 8:29 PM EST on February 18, 2012 Partly Cloudy, 63 °F
Gatorade Duel 1 2:19 PM EST on February 23, 2012 Average High 70° F/ 21° C
Event Date Forecast
AT&T Pebble Beach National Pro-Am 8:30 AM PST on February 12, 2012 Mostly Cloudy, 45 °F
Northern Trust Open 8:30 AM PST on February 16, 2012 Clear, 63 °F
Weather Stations
Station Location Temp. Windchill Dew Point Humidity Wind Precipitation Elevation Updated Type Website
DaleHWeatherStation17020, Duncannon, PA 24.3 °F 24 °F 15 °F 68% NW  at  2.0 mph 0.00 in / hr 351 ft 11:42 PM EST Rapid Fire  
Earth Station 1 - Carroll Township, Shermans Dale, PA 20.9 °F 15 °F 12 °F 67% West  at  4.0 mph 0.00 in / hr 620 ft 11:42 PM EST Rapid Fire  
Turtle Rock Airport, Shermans Dale, PA 19.0 °F 5 °F 8 °F 62% NW  at  16.0 mph 0.00 in / hr 620 ft 11:42 PM EST Normal  
HADS SHERMANS CREEK AT SHERMANS DALE PA, Shermans Dale, PA - - - - North  at  - 0.00 in / hr 422 ft 10:15 PM EST MADIS
Apple Tree Farms, Harrisburg, PA 21.2 °F 14 °F 15 °F 78% North  at  5.1 mph - / hr 472 ft 11:33 PM EST Normal  
Mechanicsburg, PA 20.3 °F 4 °F 13 °F 73% NNW  at  22.0 mph 0.00 in / hr 439 ft 11:42 PM EST Rapid Fire
Enders/Fisherville, Halifax, PA 20.2 °F 10 °F 13 °F 73% North  at  9.0 mph 0.00 in / hr 571 ft 11:42 PM EST Rapid Fire  
MechanicsburgWeather.com, Mechanicsburg, PA 19.2 °F 6 °F 11 °F 69% NNW  at  13.8 mph 0.00 in / hr 430 ft 11:42 PM EST Rapid Fire
North Middleton Twp Public Works Dept, Carlisle, PA 22.5 °F 10 °F 17 °F 80% West  at  13.0 mph 0.00 in / hr 423 ft 8:39 PM EST Normal  
HADS SUSQUEHANNA RIVER AT HARRISBURG PA, Harrisburg, PA - - - - North  at  - 0.00 in / hr 290 ft 10:00 PM EST MADIS
Creek Road, N. Middleton, Carlisle, PA 20.8 °F 13 °F -2 °F 36% NE  at  6.3 mph 0.00 in / hr 410 ft 11:42 PM EST Rapid Fire
Colonial Park, Harrisburg, PA 21.6 °F 22 °F 15 °F 75% NW  at  0.4 mph 0.00 in / hr 522 ft 11:42 PM EST Rapid Fire
Silver Springs, Mechanicsburg, PA 20.7 °F 10 °F 10 °F 62% NNW  at  9.2 mph 0.00 in / hr 465 ft 11:42 PM EST Rapid Fire  
Scott's Weather, Harrisburg, PA 20.0 °F 20 °F 14 °F 77% NW  at  3.0 mph 0.00 in / hr 465 ft 11:42 PM EST Normal  
APRSWXNET New Cumberland P, New Cumberland, PA 22 °F 14 °F 16 °F 77% NW  at  6 mph 0.00 in / hr 426 ft 11:18 PM EST MADIS
Lenker Manor, Harrisburg, PA 22.2 °F 16 °F 16 °F 75% WNW  at  4.4 mph 0.00 in / hr 435 ft 11:41 PM EST Normal  
WA3USG-MONROE, Mechanicsburg, PA 20.9 °F 21 °F 13 °F 71% NW  at  3.0 mph 0.00 in / hr 535 ft 11:42 PM EST Rapid Fire  
APRSWXNET Landisburg PA , Landisburg, PA 21 °F 8 °F 15 °F 76% NW  at  15 mph 0.00 in / hr 610 ft 10:13 PM EST MADIS
Indian Hills, Boiling Springs, PA 20.7 °F 14 °F 2 °F 44% West  at  5.0 mph 0.00 in / hr 575 ft 11:42 PM EST Normal  
APRSWXNET Harrisburg P, Grantville, PA 21 °F 5 °F 15 °F 78% NNW  at  22 mph 0.00 in / hr 498 ft 11:10 PM EST MADIS
Grantville, PA 19.8 °F 12 °F 17 °F 87% WNW  at  6.0 mph 0.00 in / hr 482 ft 11:38 PM EST Normal  
Etters, Etters, PA 21.5 °F 11 °F 15 °F 77% West  at  9.3 mph 0.00 in / hr 490 ft 11:42 PM EST Normal  
Peach Ave, Hershey, PA 19.8 °F 20 °F 18 °F 92% North  at  0.0 mph 0.00 in / hr 460 ft 11:42 PM EST Rapid Fire  
APRSWXNET Mifflintown PA , Mifflin, PA 19 °F 3 °F 8 °F 61% WNW  at  19 mph 0.00 in / hr 580 ft 11:16 PM EST MADIS
RAWS WOLF POND PA, Elizabethville, PA 13 °F - 11 °F 92% North  at  10 mph 0.00 in / hr 1720 ft 11:08 PM EST MADIS
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