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Plymouth County, IA Weather and Climate Synopsis

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Weather Summary Hourly Observations Nowcast Precision Ag., Lawn & Garden Guidance
7 Day Forecast Medium & Long Range Outlook Almanac Historical Facts

US Weekly Rainfall Departure

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A joint service of the UK Ag Weather Center and the National Weather Service.

Weather Summary for Iowa
National Weather Service Des Moines IA
542 PM CDT Tue Mar 20 2018

Conditions across Iowa this afternoon were cloudy. After the light
snow showers rolled through the northwestern portion of the state, a
few flurries and a few light scattered sprinkles were reported at
scattered locations. Temperatures this afternoon only reached the mid
30s, with light northerly winds of 5 to 10 miles per hour. As of the
early evening hours, visible satellite showed all of Iowa under thick
cloud cover. A few stations across the state were reporting light 
rain showers under the cloud cover. 

Across the rest of the Midwest, conditions today have been cloudy. 
Clear skies are way out west over the High Plains. Temperatures have 
mainly been in the mid 30s, with generally northerly flow. There have 
been scattered light rain showers and snow flurries across the region.

For this evening, the cloud cover will prevent temperatures from
dropping. Overnight lows will be in the upper 20s to lower 30s. Winds
will be calm. Mist and localized fog can be expected across Iowa this
evening and into the morning hours which will reduce visibility. For
tomorrow, temperatures will be in the mid 40s for most of the state,
with a few locations near the Missouri border reaching the lower 50s.
Overall, conditions should be dry in terms of precipitation. Activity
will pick up toward the end of this week, with a few scattered rain
showers on Thursday, and more widespread precipitation on Friday
across Iowa. 

National Ag. Weather Outlook, International Ag. Weather Summary
Current Surface Map, [2nd Source TWC]

Precision Agriculture Weather Forecast For PLYMOUTH County

For Your Farm PointAgCast...Click here.

Regional Hourly Observations For PLYMOUTH County
Issued at 300 AM CDT WED MAR 21 2018

CHEROKEE       CLOUDY    32  32 100 CALM      30.08R                  
DENISON        CLOUDY    32  32 100 NE3       30.08R                  
ESTHERVILLE    CLOUDY    29  26  89 E3        30.06S                  
LE MARS        CLOUDY    34  32  93 CALM      30.08S                  
ORANGE CITY    CLOUDY    32  32 100 CALM      30.07R FOG              
SHELDON        CLOUDY    32  32 100 NW3       30.05S                  
SIOUX CITY     PTCLDY    32  31  96 NW7       30.09S WCI  26          
SPENCER        CLOUDY    31  27  85 CALM      30.06S                  
STORM LAKE     CLOUDY    30  30 100 E3        30.06R                  

Current Temperatures, Dewpoint, RH, Wind, Regional Obs, Surface 4-Panel

Current Agricultural Weather Conditions in Iowa
Based on observations at 300am CDT, Wednesday March 21, 2018

Across Iowa...temperatures are near 32 degrees west, near 32 degrees central, and near 28 degrees east. Current sky conditions are partly cloudy west, cloudy central, and fair east. In the west, relative humidity is near 96%, and the dew point is near 31 degrees. In the central part of the state, relative humidity is near 85%, and the dew point is near 28 degrees. In the east, relative humidity is near 66%, and the dew point is near 18 degrees. Winds are from the northwest at 7 mph west, where conditions are favorable for spraying. The wind chill is near 26 degrees west. Winds are from the north at 6 mph central, where conditions are favorable for spraying. The wind chill is near 26 degrees central. Winds are from the north at 10 mph east, where conditions are favorable for spraying. The wind chill is near 19 degrees east. Based on current available observations, the highest temperature is 36 degrees at Clarinda. The lowest temperature is 23 degrees at Waterloo and Mason City.

Current NOWCAST not available:
Nowcasts are not issued routinely during fair weather. Only when
precipitation or other significant weather is occuring in this county will these
forecasts be issued. Currently, there is no short term forecast in effect.

US Radar, All NWS Radars (In near-real time), Current Livestock Heat Stress Index (LSI), Current Wind Chill Map
Hazardous Weather Outlook For PLYMOUTH County,IA

441 PM CDT Tue Mar 20 2018

 DAY ONE  Tonight

Fog may be possible later tonight and into Wednesday morning.
Localized visibilities under 1 mile may be possible. 

 DAYS TWO THROUGH SEVEN  Wednesday through Monday

Rain will impact the region Friday and continue into Saturday. 
Depending on temperatures as precipitation falls, accumulating 
snow may be possible Friday night into Saturday. However, the 
greatest risks of accumulating snow will be in Southwest Minnesota
and northern Iowa. 


Spotter activation will not be needed.

NWS Severe Weather Map , Convective Outlook

7-Day Forecast For PLYMOUTH County, IA
327 AM CDT Wed Mar 21 2018

Mostly cloudy in the morning then becoming partly cloudy. Patchy fog in the morning. Highs around 49. South winds 5 to 10 mph.

Mostly clear in the evening then becoming mostly cloudy. Lows around 32. Southeast winds 5 to 10 mph.

Partly cloudy. Highs around 56. Southeast winds 5 to 10 mph becoming east 10 to 15 mph in the afternoon.

Partly cloudy in the evening then becoming mostly cloudy. Lows around 36. East winds 10 to 15 mph. Gusts around 25 mph after midnight.

Cloudy. Chance of drizzle in the morning, then light rain likely in the afternoon. Highs around 45. Southeast winds 15 to 20 mph with gusts to around 35 mph. Chance of measurable precipitation 70 percent.

Rain. Lows around 35.

Mostly cloudy. A 40 percent chance of rain in the morning. Highs around 44.

Mostly cloudy. Lows around 31.

Mostly cloudy. Highs around 46.

Mostly cloudy. Chance of rain in the evening, then snow
possibly mixed with rain after midnight. Lows around 34. Chance of precipitation 60 percent.

Mostly cloudy. Rain
possibly mixed with snow in the morning, then chance of rain in the afternoon. Highs around 46. Chance of precipitation 70 percent.

Mostly cloudy. Chance of rain in the evening, then chance of snow after midnight. Lows around 32. Chance of precipitation 50 percent.

Partly sunny. Chance of rain
possibly mixed with snow in the morning. Highs around 48. Chance of precipitation 30 percent.

12-48 Hr Surface Forecast Maps, TWC 4-Panel Surface Forecast, Fire Danger, Day 1 Precip, Day 2 Precip, Days 1-5 Precip, Severe Weather Pot.-Day 1, Day 2

Medium & Long Range Outlook For Iowa
                 6 TO 10 DAY  8 TO 14 DAY   30 DAY    90 DAY 
                   MAR 26-30 MAR 28-APR 3    MAR       MAR-MAY                      
                 -----------  -----------  --------  ---------
   Temperature:     Normal        Below      Below     Normal                      
 Precipitation:      Above        Below     Normal      Above                      

....  Medium and long range outlooks provided by NCEP/K. Thomas Priddy
5 Day Rainfall Forecast, 6 to 10 Day , 8 to 14 Day , Text, 30-Day Outook, 90-Day Outook, 120-Day Outlook
Almanac Information

Wednesday March 21, 2018 the 80th Day of Year

Declination 0.630000
Distance 0.999721 AU
Rise 07:15 EDT Set 19:28 EDT
Transit Meridian 13:20 EDT
Civil Twilight Begins 06:48 EDT Ends 19:55 EDT

Calculations made for central point in the state.
Time in ET -- and will vary due to location and
elevation -- Priddy

Historical Weather And Climate Facts For Today

A tornado swarm occurred in the Deep South. Between late afternoon and
early the next morning severe thunderstorms spawned 31 tornadoes in
Alabama, Mississippi, Georgia and Tennessee. The tornadoes killed 334
persons and injured 1784 others. Northern Alabama was hardest hit.
Tornadoes in Alabama killed 286 persons and caused five million dollars
damage. (David Ludlum)
Severe thunderstorms spawned thirty-one tornadoes across Arkansas,
Tennessee, Missouri, Mississippi, Alabama and Kentucky. The tornadoes
killed 343 persons and caused 15 million dollars damage. Arkansas and
Tennessee each reported thirteen tornadoes. The towns of Judsonia AR and
Henderson TN were nearly wiped off the map in what proved to be the worst
tornado outbreak of record for Arkansas. A tornado, one and a half miles
wide at times, left a church the only undamaged building at Judsonia.
(David Ludlum) (The Weather Channel)

Ag Weather Center, Department of Biosystems & Agricultural Engineering, University of Kentucky