Jefferson, SD

5:55 AM CST on February 13, 2012 (GMT -0600)
Elev: 1106 ft
Lon: 96.5° W
Lat: 42.6° N
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Active Advisory: Winter Weather Advisory (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
Jefferson Weather at a Glance
Updated 5:45 AM CST
Elevation
1253 ft
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Now
Light Snow
Light Snow Mist
Temperature
23.0 °F
Feels Like 23 °F
Wind(mph)
2.0
Sunrise / Set
7:26 AM
5:55 PM
Moon
Waning Gibbous
Today
Snow 31 °F
Snow
100% chance of precipitation
Tonight
Partly Cloudy 13 °F
Partly Cloudy
Tomorrow
Partly Cloudy 36 | 16 °F
Partly Cloudy
Wednesday
Chance of Snow 36 | 22 °F
Chance of Snow
40% chance of precipitation
Thursday
Chance of Snow 38 | 20 °F
Chance of Snow
20% chance of precipitation
Friday
Clear 38 | 22 °F
Clear
Today is forecast to be nearly the same temperature as yesterday.
Conditions
Pressure
30.10 in
Visibility
0.8 miles
Clouds
Moisture
Humidity
95%
Rainfall
-
Not available.
Snow Depth
Not available.
METAR
METAR KSUX 131152Z 14008KT 3/4SM R31/4000V5000FT -SN BR VV008 M04/M06 A2988 RMK AO2 SLP134 P0008 60034 70034 T10441056 11028 21050 56028
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Weather Radio
Weather Radio Index
Temperature
Windchill
23 °F
Dew Point
22 °F
Wind
Speed / Dir
2.0 mph from South
Wind Gust
3.0 mph
Health
UV
Not available.
Pollen
.30 out of 12
Pollen Forecast
Air Quality
Not available.
Flu Activity
Local Activity
View Flu Map
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Regional Forecast for Union
Today
snow Widespread snow through mid afternoon...then slight chance of light snow in the late afternoon. Snow accumulation of 1 to 2 inches. Highs around 31. South winds 10 to 15 mph decreasing to 5 to 10 mph in the afternoon.
Tonight
nt_cloudy Mostly cloudy. Areas of fog after midnight. Lows around 15. Southwest winds 5 to 10 mph.
Tuesday
partlysunny Partly sunny. Areas of fog in the morning. Highs around 38. Southwest winds 5 to 10 mph becoming west 10 to 15 mph in the afternoon.
Tuesday Night
nt_partlycloudy Partly cloudy in the evening...then becoming mostly cloudy. Lows around 18. South winds 5 to 10 mph.
Wednesday
chancesnow Partly sunny. Slight chance of light snow in the morning...then chance of light snow in the afternoon. Highs around 36. East winds around 5 mph becoming northeast in the afternoon. Chance of snow 40 percent.
Wednesday Night
nt_chancesnow Mostly cloudy. Chance of light snow in the evening...then slight chance of light snow after midnight. Lows around 26. Chance of snow 40 percent.
Thursday
partlysunny Partly sunny. Highs around 38.
Thursday Night
nt_partlycloudy Partly cloudy. Lows around 19.
Friday
sunny Sunny in the morning...then becoming partly cloudy. Highs around 37.
Friday Night through Sunday
nt_partlycloudy Partly cloudy. Lows around 22. Highs around 40.
Source: NWS at 3:39 am CST on February 13, 2012
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Forecast
View Calendar 7-Day Weather Forecast for 57038
Monday, 13
Snow
31 | 13 °F
Snow
Chance of
Precipitation
100%
Tuesday, 14
Partly Cloudy
36 | 16 °F
Partly Cloudy
Chance of
Precipitation
0%
Wednesday, 15
Chance of Snow
36 | 22 °F
Chance of Snow
Chance of
Precipitation
40%
Thursday, 16
Chance of Snow
38 | 20 °F
Chance of Snow
Chance of
Precipitation
20%
Friday, 17
Clear
38 | 22 °F
Clear
Chance of
Precipitation
0%
Saturday, 18
Partly Cloudy
41 | 23 °F
Partly Cloudy
Chance of
Precipitation
10%
Sunday, 19
Partly Cloudy
40 | NA
Partly Cloudy
Chance of
Precipitation
10%
Source: NWS at 3:39 am CST on February 13, 2012
Regional Forecast for Union
Today
snow Widespread snow through mid afternoon...then slight chance of light snow in the late afternoon. Snow accumulation of 1 to 2 inches. Highs around 31. South winds 10 to 15 mph decreasing to 5 to 10 mph in the afternoon.
Tonight
nt_cloudy Mostly cloudy. Areas of fog after midnight. Lows around 15. Southwest winds 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 25 | 20 27 | 23 27 | 23 18 | 16
Wind 11 mph South 8 mph South 1 mph SSW 2 mph West
Humidity 80% 87% 88% 88%
Chance of Precip. 90% 100% 100% 10%
Cloud Cover 100% 100% 95% 42%
Conditions Snow Snow Overcast Fog
Sunrise & Sunset
7:26 AM
5:55 PM
Source: NWS at 3:39 am CST on February 13, 2012
Regional Forecast for Union
Tuesday
partlysunny Partly sunny. Areas of fog in the morning. Highs around 38. Southwest winds 5 to 10 mph becoming west 10 to 15 mph in the afternoon.
Tuesday Night
nt_partlycloudy Partly cloudy in the evening...then becoming mostly cloudy. Lows around 18. South winds 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 14 | 13 32 | 25 32 | 25 18 | 18
Wind 2 mph SW 6 mph WSW 6 mph SW 4 mph SW
Humidity 95% 74% 75% 96%
Chance of Precip. 10% 0% 0% 0%
Cloud Cover 80% 42% 46% 56%
Conditions Fog Partly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
7:25 AM
5:56 PM
Source: NWS at 3:39 am CST on February 13, 2012
Regional Forecast for Union
Wednesday
chancesnow Partly sunny. Slight chance of light snow in the morning...then chance of light snow in the afternoon. Highs around 36. East winds around 5 mph becoming northeast in the afternoon. Chance of snow 40 percent.
Wednesday Night
nt_chancesnow Mostly cloudy. Chance of light snow in the evening...then slight chance of light snow after midnight. Lows around 26. Chance of snow 40 percent.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 22 | 20 31 | 27 32 | 27 25 | 23
Wind 1 mph SSE 1 mph East 2 mph NNE 2 mph NNW
Humidity 87% 85% 78% 91%
Chance of Precip. 0% 40% 40% 30%
Cloud Cover 72% 73% 77% 66%
Conditions Chance of Snow Chance of Snow Chance of Snow Chance of Snow
Sunrise & Sunset
7:23 AM
5:57 PM
Source: NWS at 3:39 am CST on February 13, 2012
Regional Forecast for Union
Thursday
partlysunny Partly sunny. Highs around 38.
Thursday Night
nt_partlycloudy Partly cloudy. Lows around 19.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 23 | 20 38 | 25 32 | 22 25 | 18
Wind 6 mph NW 8 mph NW 8 mph WNW 5 mph WNW
Humidity 88% 58% 66% 77%
Chance of Precip. 30% 20% 20% 10%
Cloud Cover 65% 49% 39% 29%
Conditions Chance of Snow Chance of Snow Partly Cloudy Partly Cloudy
Sunrise & Sunset
7:22 AM
5:58 PM
Source: NWS at 3:39 am CST on February 13, 2012
Regional Forecast for Union
Friday
sunny Sunny in the morning...then becoming partly cloudy. Highs around 37.
Friday Night through Sunday
nt_partlycloudy Partly cloudy. Lows around 22. Highs around 40.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 20 | 16 36 | 18 34 | 22 25 | 20
Wind 5 mph WNW 6 mph West 4 mph WSW 1 mph West
Humidity 80% 48% 61% 77%
Chance of Precip. 10% 0% 0% 0%
Cloud Cover 22% 24% 29% 29%
Conditions Clear Clear Partly Cloudy Partly Cloudy
Sunrise & Sunset
7:20 AM
6:00 PM
Source: NWS at 3:39 am CST on February 13, 2012
Regional Forecast for Union
Friday Night through Sunday
nt_partlycloudy Partly cloudy. Lows around 22. Highs around 40.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 22 | 18 40 | 27 38 | 27 27 | 25
Wind 2 mph West 2 mph WSW 4 mph SSW 2 mph SSW
Humidity 83% 56% 64% 92%
Chance of Precip. 0% 10% 10% 10%
Cloud Cover 44% 25% 30% 37%
Conditions Partly Cloudy Clear Partly Cloudy Partly Cloudy
Sunrise & Sunset
7:20 AM
6:00 PM
Source: NWS at 3:39 am CST on February 13, 2012
Regional Forecast for Union
Friday Night through Sunday
nt_partlycloudy Partly cloudy. Lows around 22. Highs around 40.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 25 | 23 40 | 29 38 | 27 27 | 25
Wind 6 mph ESE 6 mph SE 4 mph SSW 2 mph SSW
Humidity 96% 67% 64% 92%
Chance of Precip. 10% 10% 10% 10%
Cloud Cover 56% 72% 30% 37%
Conditions Partly Cloudy Mostly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
7:20 AM
6:00 PM
BestForecast (what's this?)
Scientific Forecaster Discussion — MOS Weather Graph
Nearby
History & Almanac
February 13, 2012 Max Temp Min Temp
Normal (KSUX) 34 °F 15 °F
Record (KSUX) 64 °F (1934) -24 °F (1905)
Yesterday 28 °F -6 °F
Yesterday's Heating Degree Days: 54
Choose a date
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 7:26 AM CST 5:55 PM CST
Civil Twilight 6:57 AM CST 6:24 PM CST
Nautical Twilight 6:24 AM CST 6:57 PM CST
Astronomical Twilight 5:51 AM CST 7:29 PM CST
Moon 12:03 AM CST 10:15 AM CST
Length Of Visible Light 11h 26m
Length of Day
10h 28m
Tomorrow will be 2m 39s 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
Custer
26 °F
Spearfish
25 °F
Ellsworth AFB
25 °F
Rapid City
25 °F
Sioux Falls
10 °F
Philip
12 °F
Faith
12 °F
Mobridge
14 °F
Pierre
14 °F
Aberdeen
Source: NWS
Snow Depth
Station Depth Elevation
Blind Park 20 in 6890 ft
Snow Depth Reports — Snow Depth Map
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Travel Planning
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Aviation
City Temp. Conditions Updated
Sioux City 24 °F Light Snow Mist 5:52 AM CST
Le Mars 23 °F Light Snow 5:35 AM CST
Wayne 24 °F Overcast 5:35 AM CST
Orange City 23 °F Heavy Snow 5:35 AM CST
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Flight To ETA Status
No flights were found.
Flight Tracker by FlightAware FlightAware
View U.S. Airport Delays
Type Condition
Flight Rule: LIFR (KSUX)
Wind Speed: 8.0 kts.
Wind Dir: 180° (South)
Ceiling: Unlimited

METAR KSUX 131152Z 14008KT 3/4SM R31/4000V5000FT -SN BR VV008 M04/M06 A2988 RMK AO2 SLP134 P0008 60034 70034 T10441056 11028 21050 56028

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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
Northside Jones House, Sioux City, IA 23.0 °F 23 °F 22 °F 95% South  at  2.0 mph 0.00 in / hr 1253 ft 5:45 AM CST Normal
HADS PERRY CREEK NEAR SIOUX CITY 4N IA, Sioux City, IA - - - - North  at  - 0.00 in / hr 1200 ft 5:00 AM CST MADIS
APRSWXNET Sioux City IA , Sioux City, IA 23 °F 23 °F 23 °F 99% SSE  at  2 mph 0.00 in / hr 1246 ft 5:28 AM CST MADIS
HADS MISSOURI RIVER AT SOUTH SIOUX CI NE, South Sioux City, NE - - - - North  at  - 0.00 in / hr 1057 ft 5:00 AM CST MADIS
IADOT Sioux City (I-29), Sioux City, IA 24 °F 17 °F 24 °F 99% SSW  at  6 mph 0.23 in / hr 1195 ft 5:40 AM CST MADIS
Mr Rogers, Elk Point, SD 22.8 °F 14 °F 21 °F 94% SSE  at  8.0 mph 0.00 in / hr 1114 ft 5:45 AM CST Normal  
HADS FLOYD RIVER NEAR JAMES 1NE IA, Hinton, IA - - - - North  at  - 0.00 in / hr 1157 ft 5:00 AM CST MADIS
HADS BIG SIOUX RIVER AT AKRON IA, Akron, IA - - - - North  at  - 0.00 in / hr 1119 ft 5:00 AM CST MADIS
NonFedAWOS VERMILLION , Vermillion, SD 23 °F 15 °F 19 °F 86% SE  at  7 mph 0.00 in / hr 1146 ft 5:35 AM CST MADIS
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Winter Weather Advisory
Mobile & Email Alerts Statement as of 5:41 AM CST on February 13, 2012

... Winter Weather Advisory in effect until noon CST today...

The National Weather Service in Sioux Falls has issued a Winter
Weather Advisory for snow... which is in effect until noon CST
today.

* Timing... moderate snow will continue through mid morning... then
will taper off and ending during the afternoon.

* Accumulations... accumulations of 3 to 4 inches are expected...
mostly before mid morning... with little in the way of additional
accumulations in the late morning and afternoon.

* Wind and visibility... south winds 10 to 15 mph will cause some
minor drifting. Visibility will be well below a mile in falling
snow.

Precautionary/preparedness actions...

A Winter Weather Advisory for snow means that periods of snow
will cause primarily travel difficulties. Be prepared for snow
covered roads and limited visibilities... and use caution while
driving.