Rock Valley, IA

8:00 PM CST on February 11, 2012 (GMT -0600)
Elev: 1240 ft
Lon: 96.3° W
Lat: 43.2° 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.
Rock Valley Weather at a Glance
Updated 7:55 PM CST
Elevation
1358 ft
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Now
Clear
Clear
Temperature
13.5 °F
Feels Like 14 °F
Wind(mph)
2.0
Sunrise / Set
7:29 AM
5:50 PM
Moon
Waning Gibbous
Tonight
Clear 0 °F
Clear
Tomorrow
Clear 29 °F
Clear
Tomorrow Night
Chance of Snow 16 °F
Chance of Snow
30% chance of precipitation
Monday
Chance of Snow 31 | 18 °F
Chance of Snow
50% chance of precipitation
Tuesday
Partly Cloudy 40 | 20 °F
Partly Cloudy
Wednesday
Partly Cloudy 38 | 25 °F
Partly Cloudy
Tomorrow is forecast to be Much Warmer than today.
Conditions
Pressure
30.75 in
Visibility
10.0 miles
Clouds
Clear -
Moisture
Humidity
52%
Rainfall
0.00 in
Snow Depth
Not available.
METAR
METAR KORC 120155Z AUTO 30004KT 10SM CLR M12/M21 A3055 RMK AO2
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Weather Radio
Temperature
Windchill
14 °F
Dew Point
-1 °F
Wind
Speed / Dir
2.0 mph from WNW
Wind Gust
3.0 mph
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 Sioux
Tonight
nt_sunny Clear. Lows near zero. West winds around 5 mph in the evening becoming light and variable.
Sunday
sunny Sunny. Highs around 29. South winds 5 to 10 mph becoming 10 to 15 mph in the afternoon.
Sunday Night
nt_snow Mostly cloudy and not as cold. A 40 percent chance of light snow after midnight. Lows around 17. South winds 5 to 10 mph.
Monday
chancesnow Light snow likely. Light snow accumulations. Highs around 31. South winds 5 to 10 mph. Chance of snow 70 percent.
Monday Night
nt_snow Mostly cloudy. A 20 percent chance of light snow in the evening. Lows around 20. South winds around 5 mph becoming southwest after midnight.
Tuesday
partlycloudy Partly cloudy in the morning...then becoming sunny. Highs around 41.
Tuesday Night and Wednesday
nt_partlycloudy Partly cloudy. Lows around 21. Highs around 39.
Wednesday Night
nt_snow Mostly cloudy with a 20 percent chance of light snow. Lows around 26.
Thursday through Saturday
partlycloudy Partly cloudy. Highs around 40. Lows around 21.
Source: NWS at 3:07 PM CST on February 11, 2012
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Forecast
View Calendar 7-Day Weather Forecast for 51247
Saturday, 11
Clear
21 | 0 °F
Clear
Chance of
Precipitation
0%
Sunday, 12
Clear
29 | 16 °F
Clear
Chance of
Precipitation
0%
Monday, 13
Chance of Snow
31 | 18 °F
Chance of Snow
Chance of
Precipitation
50%
Tuesday, 14
Partly Cloudy
40 | 20 °F
Partly Cloudy
Chance of
Precipitation
0%
Wednesday, 15
Partly Cloudy
38 | 25 °F
Partly Cloudy
Chance of
Precipitation
10%
Thursday, 16
Partly Cloudy
40 | 20 °F
Partly Cloudy
Chance of
Precipitation
10%
Friday, 17
Partly Cloudy
38 | 22 °F
Partly Cloudy
Chance of
Precipitation
0%
Saturday, 18
Partly Cloudy
40 | NA
Partly Cloudy
Chance of
Precipitation
0%
Source: NWS at 3:07 PM CST on February 11, 2012
Regional Forecast for Sioux
Tonight
nt_sunny Clear. Lows near zero. West winds around 5 mph in the evening becoming light and variable.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point -5 | -9 13 | -2 14 | -5 4 | -3
Wind 6 mph NNW 11 mph WNW 5 mph WNW 1 mph WSW
Humidity 81% 46% 35% 62%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 0% 2% 0% 0%
Conditions Clear Clear Clear Clear
Sunrise & Sunset
7:29 AM
5:50 PM
Source: NWS at 3:07 PM CST on February 11, 2012
Regional Forecast for Sioux
Sunday
sunny Sunny. Highs around 29. South winds 5 to 10 mph becoming 10 to 15 mph in the afternoon.
Sunday Night
nt_snow Mostly cloudy and not as cold. A 40 percent chance of light snow after midnight. Lows around 17. South winds 5 to 10 mph.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 0 | -3 23 | 5 22 | 7 18 | 9
Wind 1 mph SSW 9 mph SSW 8 mph South 6 mph SSE
Humidity 75% 44% 51% 70%
Chance of Precip. 0% 0% 0% 30%
Cloud Cover 0% 6% 32% 74%
Conditions Clear Clear Partly Cloudy Chance of Snow
Sunrise & Sunset
7:27 AM
5:51 PM
Source: NWS at 3:07 PM CST on February 11, 2012
Regional Forecast for Sioux
Monday
chancesnow Light snow likely. Light snow accumulations. Highs around 31. South winds 5 to 10 mph. Chance of snow 70 percent.
Monday Night
nt_snow Mostly cloudy. A 20 percent chance of light snow in the evening. Lows around 20. South winds around 5 mph becoming southwest after midnight.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 18 | 14 29 | 22 27 | 25 22 | 20
Wind 6 mph SSE 7 mph South 4 mph South 1 mph SSW
Humidity 84% 74% 88% 96%
Chance of Precip. 30% 50% 50% 20%
Cloud Cover 97% 100% 98% 70%
Conditions Chance of Snow Chance of Snow Chance of Snow Mostly Cloudy
Sunrise & Sunset
7:26 AM
5:52 PM
Source: NWS at 3:07 PM CST on February 11, 2012
Regional Forecast for Sioux
Tuesday
partlycloudy Partly cloudy in the morning...then becoming sunny. Highs around 41.
Tuesday Night and Wednesday
nt_partlycloudy Partly cloudy. Lows around 21. Highs around 39.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 18 | 18 34 | 22 31 | 23 25 | 20
Wind 2 mph West 6 mph West 4 mph WSW 4 mph WSW
Humidity 95% 60% 75% 84%
Chance of Precip. 20% 0% 0% 0%
Cloud Cover 44% 17% 35% 43%
Conditions Partly Cloudy Clear Partly Cloudy Partly Cloudy
Sunrise & Sunset
7:25 AM
5:54 PM
Source: NWS at 3:07 PM CST on February 11, 2012
Regional Forecast for Sioux
Tuesday Night and Wednesday
nt_partlycloudy Partly cloudy. Lows around 21. Highs around 39.
Wednesday Night
nt_snow Mostly cloudy with a 20 percent chance of light snow. Lows around 26.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 22 | 18 38 | 23 34 | 25 29 | 25
Wind 2 mph West 4 mph West 1 mph NW 1 mph WNW
Humidity 88% 56% 69% 81%
Chance of Precip. 0% 10% 10% 20%
Cloud Cover 44% 42% 50% 59%
Conditions Partly Cloudy Partly Cloudy Chance of Snow Chance of Snow
Sunrise & Sunset
7:23 AM
5:55 PM
Source: NWS at 3:07 PM CST on February 11, 2012
Regional Forecast for Sioux
Thursday through Saturday
partlycloudy Partly cloudy. Highs around 40. Lows around 21.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 25 | 22 40 | 22 34 | 22 25 | 20
Wind 6 mph NW 9 mph NW 11 mph NW 5 mph WNW
Humidity 84% 50% 61% 81%
Chance of Precip. 20% 10% 10% 10%
Cloud Cover 42% 44% 44% 42%
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
7:23 AM
5:55 PM
Source: NWS at 3:07 PM CST on February 11, 2012
Regional Forecast for Sioux
Thursday through Saturday
partlycloudy Partly cloudy. Highs around 40. Lows around 21.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 20 | 16 38 | 20 34 | 22 25 | 18
Wind 4 mph West 6 mph West 5 mph West 0 mph NW
Humidity 84% 46% 58% 74%
Chance of Precip. 10% 0% 0% 0%
Cloud Cover 44% 38% 28% 26%
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
7:23 AM
5:55 PM
Source: NWS at 3:07 PM CST on February 11, 2012
Regional Forecast for Sioux
Thursday through Saturday
partlycloudy Partly cloudy. Highs around 40. Lows around 21.
Hourly Forecast 6AM 12 Noon 6PM 12 Midnight
Temp. | Dew Point 22 | 18 40 | 25 34 | 22 25 | 18
Wind 5 mph SE 7 mph SSE 5 mph West 0 mph NW
Humidity 80% 52% 58% 74%
Chance of Precip. 0% 0% 0% 0%
Cloud Cover 32% 27% 28% 26%
Conditions Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
Sunrise & Sunset
7:23 AM
5:55 PM
BestForecast (what's this?)
Nearby
History & Almanac
February 11, 2012 Max Temp Min Temp
Normal (KORC) 32 °F 16 °F
Record (KORC) 53 °F (2005) 0 °F (2008)
Yesterday 23.1 °F 1.3 °F
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 7:29 AM CST 5:50 PM CST
Civil Twilight 6:59 AM CST 6:19 PM CST
Nautical Twilight 6:26 AM CST 6:53 PM CST
Astronomical Twilight 5:53 AM CST 7:26 PM CST
Moon 10:50 PM CST (2/11) 9:02 AM CST (2/11)
Length Of Visible Light 11h 20m
Length of Day
10h 21m
Tomorrow will be 2m 41s longer.
Waning Gibbous, 79% 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
26 °F
Ames
26 °F
Muscatine
26 °F
Clarion
25 °F
Burlington
-4 °F
Storm Lake
-4 °F
Sheldon
-4 °F
Le Mars
-2 °F
Spencer
-2 °F
Orange City
Source: NWS
Snow Depth
Station Depth Elevation
No new snow has been reported.
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Travel & Activities
Travel Planning
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Aviation
City Temp. Conditions Updated
Orange City 10 °F Clear 7:55 PM CST
Sheldon 9 °F Clear 7:55 PM CST
Luverne 9 °F Clear 7:56 PM CST
Le Mars 9 °F Clear 7:55 PM CST
Flight To ETA Status
No flights were found.
Flight Tracker by FlightAware FlightAware
Type Condition
Flight Rule: VFR (KORC)
Wind Speed: 4.0 kts.
Wind Dir: 284° (WNW)
Ceiling: Unlimited

METAR KORC 120155Z AUTO 30004KT 10SM CLR M12/M21 A3055 RMK AO2

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, 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
HADS ROCK RIVER AT ROCK VALLEY IA, Rock Valley, IA - - - - North  at  - 0.00 in / hr 1246 ft 7:00 PM CST MADIS
Sioux Center IA, Sioux Center, IA 13.5 °F 14 °F -1 °F 52% WNW  at  2.0 mph 0.00 in / hr 1358 ft 7:55 PM CST Normal
Sioux Center, IA 11.3 °F 11 °F -6 °F 45% WSW  at  0.0 mph 0.00 in / hr 1447 ft 7:56 PM CST Normal  
IADOT Alton (IA10), Orange City, IA 10 °F 3 °F -5 °F 50% West  at  4 mph 0.00 in / hr 1411 ft 7:40 PM CST MADIS
MesoWest Hospers North , Hospers, IA 11 °F 11 °F - - North  at  - 0.00 in / hr 1378 ft 6:55 PM CST MADIS
HADS FLOYD RIVER AT ALTON IA, Alton, IA - - - - North  at  - 0.00 in / hr 1354 ft 7:01 PM CST MADIS
Wilson, Sheldon, IA 13.0 °F 13 °F -1 °F 53% WSW  at  2.0 mph 0.00 in / hr 1427 ft 8:00 PM CST Rapid Fire  
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Public Information Statement
Mobile & Email Alerts Statement as of 5:31 PM CST on February 11, 2012



... Sioux Falls climate data up to 530 PM CST...

high temperature so far today... . 21
low temperature so far today... . -5
precipitation since midnight... .. 0.00
snowfall since midnight... ... ... . 0.0
current snowdepth... ... ... ... ... . 0


... Huron climate data up to 530 PM CST...

high temperature so far today... . 20
low temperature so far today... . -8
precipitation since midnight... .. 0.00
snowfall since midnight... ... ... . 0.0
current snowdepth... ... ... ... ... . 0


... Sioux City climate data up to 530 PM CST...

high temperature so far today... . 24
low temperature so far today... . 0
precipitation since midnight... .. 0.00
snowfall since midnight... ... ... . 0.0
current snowdepth... ... ... ... ... . 0
Missouri River stage... ... ... ... . 8.69

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