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Lyon County, IA Weather and Climate Synopsis

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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
527 PM CDT Fri Mar 23 2018

Skies were cloudy today with light rain and snow flurries scattered
across Iowa from northwest to southeast. Temperatures this afternoon
were in the upper 30s to low 40s across northern Iowa with mid to
upper 40s for central Iowa and some low 50s across far southern Iowa.
Winds have generally been out of the east at 10 to 15 mph, increasing
to 20 to 25 mph across western Iowa by 5 pm. 

A large storm system will impact the state starting tonight and
continuing through mid day Saturday. Rain will become more widespread
across Iowa this evening, switching over to snow across northeast Iowa
late tonight. Further south will see precipitation fall as rain.
Precipitation will come to an end by mid day on Saturday, with snow
totals of 3 to 6 inches across the northeastern half of Iowa, with 
areas of 8 to 12 inches from Mason City to Waterloo and Davenport. In
addition, rain totals for central and southeast Iowa will be half an 
inch to over an inch and a half. This storm will impact portions of
the Dakotas, Minnesota, Wisconsin, and Illinois where winter storm
advisories and warnings stretching across the region. Strong wind 
gusts overnight will reduce visibilities and could damage trees and 
structures weighed down by heavy wet snow.

Sunday will remain dry with temperatures in the 30s and 40s across
Iowa. Another storm system will impact the area Monday into Tuesday,
bringing rain to the region.

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

Precision Agriculture Weather Forecast For LYON County

For Your Farm PointAgCast...Click here.

Regional Hourly Observations For LYON County
Issued at 500 PM CDT FRI MAR 23 2018

CHEROKEE       CLOUDY    43  33  67 E13G29    29.98F                  
DENISON        CLOUDY    45  34  65 SE24G33   29.95S                  
ESTHERVILLE    CLOUDY    40  30  67 E21G33    30.03F                  
LE MARS        CLOUDY    45  34  65 E18G35    29.93F                  
ORANGE CITY    PTSUNNY   43  36  75 E20G29    29.94F                  
SHELDON        CLOUDY    41  34  75 E22G37    29.97R                  
SIOUX CITY     CLOUDY    46  35  65 E25G39    29.88F                  
SPENCER        CLOUDY    42  30  62 E28G35    30.00F                  
STORM LAKE     CLOUDY    41  32  70 E31G37    29.96F                  

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

Current Agricultural Weather Conditions in Iowa
Based on observations at 500pm CDT, Friday March 23, 2018

Across Iowa...temperatures are near 46 degrees west, near 48 degrees central, and near 49 degrees east. Current sky conditions are cloudy west, cloudy central, and fair east. In the west, relative humidity is near 65%, and the dew point is near 35 degrees. In the central part of the state, relative humidity is near 47%, and the dew point is near 29 degrees. In the east, relative humidity is near 30%, and the dew point is near 19 degrees. Winds are from the east at 25 mph with gusts at 39 mph west, where conditions are not favorable for spraying due to strong winds. Winds are from the east at 18 mph with gusts at 26 mph central, where conditions are not favorable for spraying due to strong winds. Winds are from the east at 18 mph east, where conditions are not favorable for spraying due to strong winds. Based on current available observations, the highest temperature is 52 degrees at Clarinda. The lowest temperature is 40 degrees at Estherville.

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 LYON County,IA

432 AM CDT Fri Mar 23 2018

 DAY ONE  Today and Tonight

Rain is expected from late this morning into the evening. Rain is
then expected mix with and change to snow after midnight. Light
snow accumulations are likely overnight.

Minor flooding was also occurring on some local rivers and creeks
due to rainfall and melting snow.

 DAYS TWO THROUGH SEVEN  Saturday through Thursday

Light snow or freezing drizzle is possible on Saturday morning.
Little or no accumulation is expected.

On Sunday morning, there is a chance of freezing drizzle west of
I-29. Any freezing drizzle is expected to end by late morning.

On late Sunday night and Monday morning, there is also a chance of
freezing rain. Any freezing rain is expected to change to rain
during Monday morning as temperatures warm above freezing.

Spotter activation will not be needed.

NWS Severe Weather Map , Convective Outlook

7-Day Forecast For LYON County, IA
457 PM CDT Fri Mar 23 2018

Windy, rain
possibly mixed with snow and thunderstorms in the evening, then light snow
possibly mixed with rain and freezing rain after midnight. Snow accumulation around 3 inches. Lows around 30. East winds 20 to 30 mph with gusts to around 40 mph decreasing to 15 to 25 mph after midnight.

Cloudy. Light snow likely
possibly mixed with freezing rain in the morning. Snow accumulation less than 1 inch

Highs around 35. East winds 15 to 20 mph. Chance of precipitation 60 percent.

Mostly cloudy. Lows around 27. Southeast winds 10 to 15 mph with gusts to around 25 mph.

Cloudy. Highs around 38. Southeast winds 10 to 15 mph.

Cloudy with a 50 percent chance of light rain
possibly mixed with freezing rain. Lows around 31. Southeast winds 10 to 15 mph.

possibly mixed with freezing rain in the morning, then rain in the afternoon. Highs around 40. Chance of precipitation 80 percent.

Mostly cloudy. Rain likely in the evening. Lows around 31. Chance of rain 60 percent.

Mostly cloudy in the morning then becoming partly cloudy. Highs around 43.

Mostly clear. Lows around 25.

Sunny in the morning then becoming partly cloudy. Highs around 48.

Mostly cloudy in the evening then becoming partly cloudy. Lows around 26.

Partly cloudy. Highs around 43.

Partly cloudy. Lows around 26.

Partly cloudy. Highs around 45.

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 29-APR 2 MAR 31-APR 6    MAR       MAR-MAY                      
                 -----------  -----------  --------  ---------
   Temperature:      Below        Below      Below     Normal                      
 Precipitation:     Normal        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

Friday March 23, 2018 the 82th Day of Year

Declination 1.420000
Distance 0.999721 AU
Rise 07:11 EDT Set 19:30 EDT
Transit Meridian 13:20 EDT
Civil Twilight Begins 06:44 EDT Ends 19:57 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 vicious tornado hit the city of Omaha NE. The tornado struck during the
late afternoon on Easter Sunday, and in just twelve minutes cut a swath of
total destruction five miles long and two blocks wide across the city
killing 94 persons and causing 3.5 million dollars property damage. (David
Pocatello ID received a record 14.6 inches of snow in 24 hours. (The
Weather Channel)

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