Swan, IA

5:58 AM CST on February 13, 2012 (GMT -0600)
Elev: 791 ft
Lon: 93.3° W
Lat: 41.5° N
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Active Advisory: Special Statement (US Severe Weather)
Tropical Weather: Tropical Cyclone Giovanna (South Indian Ocean) Tropical Cyclone Jasmine (Southern Pacific)
Weather Summary
Jessica Parker
Weather Underground Forecast for Monday, February 13, 2012.

The trough of low pressure that brought unsettled weather to the West on Sunday will advance into the Plains on Monday with more mixed precipitation. The trough will support a low and associated warm front moving eastward into the Southern Plains. As the system progresses, rain showers with periods of heavy rain and isolated thunderstorms will spread from parts of central/eastern Texas into western Louisiana, mixed precipitation will develop in parts of Oklahoma and Arkansas, and snow will blanket parts of the Central Plains, Mid-Mississippi Valley, and parts of the western Ohio Valley. Areas from eastern Texas through Arkansas should expect the heaviest precipitation totals. Heightened winter weather conditions will allow Winter Weather Advisories and a few Winter Storm Warnings to remain in effect through the day. Elsewhere east of the Continental Divide, lake-effect snow showers will continue along parts of the Lower Great Lakes Snowbelt.

In the West, a Pacific cold front pushing across the Pacific Northwest will drop southward across northern California, bringing coastal and valley rain and significant snowfall to the Sierra Nevadas.
Weather Underground Forecast for Monday, February 13, 2012.

The trough of low pressure that brought unsettled weather to the West on Sunday will advance into the Plains on Monday with more mixed precipitation. The trough will support a low and associated warm front moving eastward into the Southern Plains. As the system progresses, rain showers with periods of heavy rain and isolated thunderstorms will spread from parts of central/eastern Texas into western Louisiana, mixed precipitation will develop in parts of Oklahoma and Arkansas, and snow will blanket parts of the Central Plains, Mid-Mississippi Valley, and parts of the western Ohio Valley. Areas from eastern Texas through Arkansas should expect the heaviest precipitation totals. Heightened winter weather conditions will allow Winter Weather Advisories and a few Winter Storm Warnings to remain in effect through the day. Elsewhere east of the Continental Divide, lake-effect snow showers will continue along parts of the Lower Great Lakes Snowbelt.

In the West, a Pacific cold front pushing across the Pacific Northwest will drop southward across northern California, bringing coastal and valley rain and significant snowfall to the Sierra Nevadas.
Weather Underground Broadcast Network
Swan Weather at a Glance
Updated 5:35 AM CST
Weather Station
Knoxville (KOXV)
Elevation
925 ft
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Now
Light Snow
Light Snow
Temperature
27 °F
Feels Like 18 °F
Wind(mph)
8
Sunrise / Set
7:11 AM
5:43 PM
Moon
Waning Gibbous
Today
Ice Pellets 31 °F
Ice Pellets
90% chance of precipitation
Tonight
Ice Pellets 25 °F
Ice Pellets
20% chance of precipitation
Tomorrow
Partly Cloudy 34 | 23 °F
Partly Cloudy
Wednesday
Ice Pellets 36 | 27 °F
Ice Pellets
40% chance of precipitation
Thursday
Chance of Snow 38 | 22 °F
Chance of Snow
30% chance of precipitation
Friday
Partly Cloudy 36 | 22 °F
Partly Cloudy
Today is forecast to be Warmer than yesterday.
Conditions
Pressure
30.04 in
Visibility
2.5 miles
Clouds
Scattered Clouds 900 ft
Overcast 1700 ft
Moisture
Humidity
80%
Rainfall
0.00 in
Snow Depth
Not available.
METAR
METAR KOXV 131135Z AUTO 19007KT 2 1/2SM -SN SCT009 OVC017 M03/M06 A3004 RMK AO2
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Weather Radio
Launch Weather Radio
Temperature
Windchill
18 °F
Dew Point
21 °F
Wind
Speed / Dir
8 mph from South
Wind Gust
Health
UV
0 out of 16
Pollen
.10 out of 12
Pollen Forecast
Air Quality
Not available.
Flu Activity
Regional
View Flu Map
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Regional Forecast for Marion
Today
snow Light snow in the morning...then light snow and a chance of freezing drizzle in the afternoon. Snow accumulation around 1 inch. A light glazing expected. High in the lower 30s. South wind 10 to 15 mph. Chance of precipitation near 100 percent.
Tonight
nt_chancesnow Cloudy. A chance of snow through midnight...then a slight chance of snow after midnight. Low in the mid 20s. South wind 5 to 10 mph shifting to the southwest after midnight. Chance of snow 50 percent.
Tuesday
cloudy Cloudy through mid morning then becoming partly sunny. High in the upper 30s. Southwest wind 5 to 10 mph.
Tuesday Night
nt_partlycloudy Partly cloudy through midnight then becoming mostly cloudy. Low in the upper 20s. Southwest wind 5 to 10 mph.
Wednesday
rain Cloudy. A chance of light freezing rain and light sleet in the morning...then light rain likely in the afternoon. High in the upper 30s. East wind near 10 mph. Chance of precipitation 60 percent.
Wednesday Night
nt_snow Snow...rain and sleet likely through midnight... then snow likely after midnight. Light snow accumulations possible. Low around 30. Chance of precipitation 70 percent.
Thursday
snow Cloudy. A 30 percent chance of light snow in the morning. High in the upper 30s.
Thursday Night
nt_cloudy Mostly cloudy. Low in the lower 20s.
Friday through Sunday
partlycloudy Partly cloudy. High around 40. Low in the mid 20s.
Source: NWS at 3:34 am CST on February 13, 2012
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Forecast
View Calendar 7-Day Weather Forecast for 50252
Monday, 13
Ice Pellets
31 | 25 °F
Ice Pellets
Chance of
Precipitation
90%
Tuesday, 14
Partly Cloudy
34 | 23 °F
Partly Cloudy
Chance of
Precipitation
0%
Wednesday, 15
Ice Pellets
36 | 27 °F
Ice Pellets
Chance of
Precipitation
40%
Thursday, 16
Chance of Snow
38 | 22 °F
Chance of Snow
Chance of
Precipitation
30%
Friday, 17
Partly Cloudy
36 | 22 °F
Partly Cloudy
Chance of
Precipitation
0%
Saturday, 18
Partly Cloudy
40 | 27 °F
Partly Cloudy
Chance of
Precipitation
10%
Sunday, 19
Partly Cloudy
41 | NA
Partly Cloudy
Chance of
Precipitation
10%
Source: NWS at 3:34 am CST on February 13, 2012
Regional Forecast for Marion
Today
snow Light snow in the morning...then light snow and a chance of freezing drizzle in the afternoon. Snow accumulation around 1 inch. A light glazing expected. High in the lower 30s. South wind 10 to 15 mph. Chance of precipitation near 100 percent.
Tonight
nt_chancesnow Cloudy. A chance of snow through midnight...then a slight chance of snow after midnight. Low in the mid 20s. South wind 5 to 10 mph shifting to the southwest after midnight. Chance of snow 50 percent.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 27 | 16 29 | 25 29 | 29 27 | 27
Wind 11 mph South 12 mph South 6 mph SSE 5 mph SSW
Humidity 65% 80% 96% 96%
Chance of Precip. 50% 100% 100% 20%
Cloud Cover 100% 100% 100% 100%
Conditions Snow Ice Pellets Ice Pellets Ice Pellets
Sunrise & Sunset
7:11 AM
5:43 PM
Source: NWS at 3:34 am CST on February 13, 2012
Regional Forecast for Marion
Tuesday
cloudy Cloudy through mid morning then becoming partly sunny. High in the upper 30s. Southwest wind 5 to 10 mph.
Tuesday Night
nt_partlycloudy Partly cloudy through midnight then becoming mostly cloudy. Low in the upper 20s. Southwest wind 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 27 | 25 31 | 25 31 | 25 27 | 22
Wind 5 mph West 6 mph West 6 mph WSW 5 mph WSW
Humidity 91% 77% 75% 78%
Chance of Precip. 20% 0% 0% 0%
Cloud Cover 100% 33% 30% 34%
Conditions Overcast Partly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
7:10 AM
5:45 PM
Source: NWS at 3:34 am CST on February 13, 2012
Regional Forecast for Marion
Wednesday
rain Cloudy. A chance of light freezing rain and light sleet in the morning...then light rain likely in the afternoon. High in the upper 30s. East wind near 10 mph. Chance of precipitation 60 percent.
Wednesday Night
nt_snow Snow...rain and sleet likely through midnight... then snow likely after midnight. Light snow accumulations possible. Low around 30. Chance of precipitation 70 percent.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 25 | 20 32 | 29 34 | 29 31 | 31
Wind 2 mph SW 1 mph SSE 4 mph ENE 2 mph NE
Humidity 80% 88% 85% 99%
Chance of Precip. 0% 40% 40% 60%
Cloud Cover 66% 80% 91% 91%
Conditions Ice Pellets Chance of Rain Snow Snow
Sunrise & Sunset
7:08 AM
5:46 PM
Source: NWS at 3:34 am CST on February 13, 2012
Regional Forecast for Marion
Thursday
snow Cloudy. A 30 percent chance of light snow in the morning. High in the upper 30s.
Thursday Night
nt_cloudy Mostly cloudy. Low in the lower 20s.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 29 | 27 34 | 31 32 | 27 27 | 22
Wind 5 mph NNW 8 mph NW 8 mph WNW 6 mph WNW
Humidity 96% 84% 78% 84%
Chance of Precip. 60% 30% 30% 10%
Cloud Cover 80% 60% 49% 33%
Conditions Chance of Snow Chance of Snow Partly Cloudy Partly Cloudy
Sunrise & Sunset
7:07 AM
5:47 PM
Source: NWS at 3:34 am CST on February 13, 2012
Regional Forecast for Marion
Friday through Sunday
partlycloudy Partly cloudy. High around 40. Low in the mid 20s.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 23 | 20 32 | 23 32 | 23 27 | 22
Wind 6 mph WNW 7 mph West 6 mph West 4 mph West
Humidity 84% 69% 69% 77%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 25% 28% 24% 31%
Conditions Clear Partly Cloudy Clear Partly Cloudy
Sunrise & Sunset
7:06 AM
5:48 PM
Source: NWS at 3:34 am CST on February 13, 2012
Regional Forecast for Marion
Friday through Sunday
partlycloudy Partly cloudy. High around 40. Low in the mid 20s.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 25 | 20 34 | 27 36 | 27 31 | 25
Wind 1 mph West 2 mph West 2 mph SW 2 mph West
Humidity 80% 71% 72% 78%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 42% 41% 34% 28%
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
7:06 AM
5:48 PM
Source: NWS at 3:34 am CST on February 13, 2012
Regional Forecast for Marion
Friday through Sunday
partlycloudy Partly cloudy. High around 40. Low in the mid 20s.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 29 | 25 38 | 31 36 | 27 31 | 25
Wind 2 mph SSW 6 mph SSE 2 mph SW 2 mph West
Humidity 84% 75% 72% 78%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 60% 48% 34% 28%
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
7:06 AM
5:48 PM
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Scientific Forecaster Discussion — MOS Weather Graph
Nearby
History & Almanac
February 13, 2012 Max Temp Min Temp
Normal (KDSM) 35 °F 17 °F
Record (KDSM) 65 °F (1921) -26 °F (1905)
Yesterday 28 °F 5 °F
Yesterday's Heating Degree Days: 48
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Earthquake Activity
City Distance Mag. Time & Date
No recent earthquake activity has been reported nearby.
Minimum magnitude displayed is 2.5.
More information at USGS.gov
Astronomy
Feb. 13, 2012 Rise Set
Actual Time 7:11 AM CST 5:43 PM CST
Civil Twilight 6:43 AM CST 6:12 PM CST
Nautical Twilight 6:10 AM CST 6:45 PM CST
Astronomical Twilight 5:38 AM CST 7:17 PM CST
Moon No Moon Rise 10:05 AM CST
Length Of Visible Light 11h 29m
Length of Day
10h 32m
Tomorrow will be 2m 33s longer.
Waning Gibbous, 64% of the Moon is Illuminated
Today
Waning Gibbous
Feb 14
Last Quarter
Feb 21
New
Feb 29
First Quarter
Mar 8
Full
Visit Astronomy
Today's Extremes
State Highs State Lows
30 °F
Red Oak
30 °F
Shenandoah
30 °F
Clarinda
30 °F
Keokuk
30 °F
Clarion
12 °F
Monticello
12 °F
Clinton
12 °F
Dubuque
14 °F
Decorah
15 °F
Muscatine
Source: NWS
Snow Depth
Station Depth Elevation
No new snow has been reported.
Snow Depth Reports — Snow Depth Map
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Travel Planning
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Aviation
City Temp. Conditions Updated
Knoxville 27 °F Light Snow 5:35 AM CST
Des Moines 27 °F Light Snow Mist 5:51 AM CST
Pella 28 °F Light Snow 5:35 AM CST
Ankeny 28 °F Light Snow 5:35 AM CST
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Flight To ETA Status
No flights were found.
Flight Tracker by FlightAware FlightAware
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Type Condition
Flight Rule: IFR (KOXV)
Wind Speed: 7.0 kts.
Wind Dir: 190° (South)
Ceiling: 1700 ft

METAR KOXV 131135Z AUTO 19007KT 2 1/2SM -SN SCT009 OVC017 M03/M06 A3004 RMK AO2

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Nearby Events
Event Date Forecast
No events within 10 mi of location. View all events.
Event data courtesy eviesays.com
Sports
Event Date Forecast
Budweiser Shootout 8:29 PM EST on February 18, 2012 Partly Cloudy, 59 °F
Gatorade Duel 1 2:19 PM EST on February 23, 2012 Average High 70° F/ 21° C
Event Date Forecast
Northern Trust Open 8:30 AM PST on February 16, 2012 Clear, 63 °F
Northern Trust Open 8:30 AM PST on February 17, 2012 Clear, 63 °F
View all Sports Weather
Weather Stations
Station Location Temp. Windchill Dew Point Humidity Wind Precipitation Elevation Updated Type Website
RAWS NEAL SMITH IA, Prairie City, IA 28 °F 15 °F 17 °F 62% SSW  at  19 mph 0.00 in / hr 897 ft 4:48 AM CST MADIS
HADS SOUTH RIVER NEAR ACKWORTH 2SW IA, Indianola, IA - - - - North  at  - 0.00 in / hr 770 ft 5:15 AM CST MADIS
Otley, Otley, IA 27.7 °F 20 °F 24 °F 86% SSW  at  7.0 mph 0.00 in / hr 810 ft 5:58 AM CST Rapid Fire
HADS MIDDLE RIVER NEAR INDIANOLA 5NNW IA, Norwalk, IA - - - - North  at  - 0.00 in / hr 775 ft 5:15 AM CST MADIS
Indianola Town Square, Indianola, IA 26.4 °F 26 °F 22 °F 85% South  at  0.0 mph 0.00 in / hr 966 ft 5:50 AM CST Normal  
Indianola, IA 26.1 °F 26 °F 23 °F 88% North  at  2.0 mph - / hr 0 ft 5:54 AM CST Normal  
HADS WHITE BREAST CREEK AT DALLAS 2NW IA, Dallas, IA - - - - North  at  - 0.00 in / hr 758 ft 5:15 AM CST MADIS
IADOT Colfax (I-80), Colfax, IA 26 °F 17 °F 26 °F 99% SW  at  9 mph 0.00 in / hr 810 ft 5:41 AM CST MADIS
HADS FOUR MILE CREEK AT DES MOINES IA, Des Moines, IA - - - - North  at  - 0.00 in / hr 795 ft 4:30 AM CST MADIS
Sheridan Gardens, Des Moines, IA 25.9 °F 13 °F 25 °F 98% SSE  at  17.2 mph 0.00 in / hr 922 ft 5:58 AM CST Normal  
Hunters Ridge, Pella, IA 27.4 °F 22 °F 25 °F 91% SSW  at  5.0 mph - / hr 900 ft 5:55 AM CST Normal  
HADS SE 6TH STREET DES MOINES RIVER A IA, Des Moines, IA - - - - North  at  - 0.00 in / hr 814 ft 5:00 AM CST MADIS
IADOT Altoona (I-80/US 65), Berwick, IA 26 °F 18 °F 22 °F 85% South  at  7 mph 0.00 in / hr 858 ft 5:41 AM CST MADIS
HADS NORTH RIVER NEAR NORWALK 2SE IA, Norwalk, IA - - - - North  at  - 0.00 in / hr 790 ft 5:15 AM CST MADIS
HADS ENGLISH CREEK NEAR KNOXVILLE 3E IA, Knoxville, IA - - - - North  at  - 0.00 in / hr 770 ft 5:15 AM CST MADIS
IADOT Des Moines (I-235), Des Moines, IA 27 °F 27 °F 27 °F 99% North  at  - 0.00 in / hr 822 ft 5:40 AM CST MADIS
HADS MET STATION AT RED ROCK LAKE IA, Pella, IA 29 °F 20 °F - - SSW  at  10 mph 0.00 in / hr 779 ft 5:00 AM CST MADIS
HADS RACCOON RIVER AT FLEUR DRIVE AT IA, Des Moines, IA - - - - North  at  - 0.00 in / hr 782 ft 4:45 AM CST MADIS
HADS BIG CREEK PONDING NEAR POLK CITY IA, Harvey, IA - - - - North  at  - 0.00 in / hr 850 ft 5:15 AM CST MADIS
HADS DES MOINES RVR AT RED ROCK DAM N IA, Harvey, IA - - - - North  at  - 0.00 in / hr 802 ft 5:00 AM CST MADIS
APRSWXNET Pella IA U, Pella, IA 28 °F 21 °F 22 °F 77% WSW  at  6 mph 0.00 in / hr 830 ft 5:33 AM CST MADIS
HADS DES MOINES RIVER AT 2ND AVE DES IA, Des Moines, IA - - - - North  at  - 0.00 in / hr 773 ft 5:15 AM CST MADIS
Witmer Park, Des Moines, IA 26.6 °F 27 °F 24 °F 89% SSW  at  3.0 mph 0.00 in / hr 892 ft 5:58 AM CST Rapid Fire  
Norwalk, IA (2mi SW), Norwalk, IA 27.0 °F 27 °F 21 °F 78% SE  at  0.0 mph 0.00 in / hr 919 ft 5:58 AM CST Rapid Fire  
Ingersoll Park, Des Moines, IA 26.1 °F 26 °F 23 °F 89% ESE  at  1.0 mph 0.00 in / hr 970 ft 5:57 AM CST Normal  
Pella Town Square, Pella, IA 28.2 °F 24 °F 9 °F 43% North  at  4.0 mph 0.00 in / hr 899 ft 5:58 AM CST Rapid Fire
Newton, IA 26.5 °F 22 °F 24 °F 91% SSW  at  4.0 mph 0.00 in / hr 943 ft 5:55 AM CST Normal  
HADS RACOON RIVER AT 63RD STREET IN D IA, Des Moines, IA - - - - North  at  - 0.00 in / hr 819 ft 5:15 AM CST MADIS
Wunderbury, Des Moines, IA 26.4 °F 26 °F 20 °F 76% WNW  at  0.0 mph 0.00 in / hr 900 ft 5:58 AM CST Normal  
Wildflower, Ankeny, IA 25.5 °F 21 °F 22 °F 87% South  at  4.0 mph 0.00 in / hr 937 ft 5:57 AM CST Normal  
HADS WALNUT CREEK AT DES MOINES IA, Des Moines, IA - - - - North  at  - 0.00 in / hr 830 ft 4:45 AM CST MADIS
Windsor Heights / Glendale, Des Moines, IA 27.3 °F 27 °F 25 °F 92% SE  at  2.2 mph 0.00 in / hr 944 ft 5:58 AM CST Rapid Fire
IADOT Pella (IA 163), Pella, IA 29 °F 20 °F 21 °F 73% SSW  at  11 mph 0.00 in / hr 890 ft 5:41 AM CST MADIS
HADS INDIAN CREEK NEAR MINGO 3NNW IA, Mingo, IA - - - - North  at  - 0.00 in / hr 838 ft 5:15 AM CST MADIS
Ashua Estates, West Des Moines, IA 25.7 °F 26 °F 16 °F 66% ENE  at  2.7 mph 0.00 in / hr 955 ft 5:52 AM CST Normal
APRSWXNET Johnston IA, Johnston, IA 26 °F 26 °F 18 °F 72% SE  at  0 mph 0.00 in / hr 806 ft 5:30 AM CST MADIS
HADS RACCOON RIVER AT WEST DES MOINES IA, Cumming, IA - - - - North  at  - 0.00 in / hr 783 ft 4:45 AM CST MADIS
Stone Ridge, Cumming, IA 42.8 °F 43 °F 22 °F 43% NNW  at  0.0 mph - / hr -107507 ft 5:46 AM CST Normal  
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Special Statement
Mobile & Email Alerts Statement as of 5:12 AM CST on February 13, 2012

... Snowfall will make for slick driving this morning...

Light to moderate snow will spread across the area and persist
through the morning commute today. Accumulations will only be an
inch or two at most locations... but falling snow will reduce
visibility to below two miles at times and lead to slick Road
conditions. Drivers are urged to use caution especially in areas
where the roads have not been treated or plowed.