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Monona County, IA Weather and Climate Synopsis

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Weather Summary for Iowa
National Weather Service Des Moines IA
537 AM CST Sun Dec 17 2017

Mostly cloudy conditions were present across much of the state
throughout the overnight hours. Some fog was reported in portions of
northern Iowa reducing visibilities to below one mile at times through
the night. Early morning temperatures range from the mid 20s to the
mid 30s across Iowa. Winds are generally out of the north to northeast
at around 10 mph. 

A weak upper level disturbance will push through the state today
bringing a chance for some light rain to portions of southern central
and southern Iowa. Otherwise mainly dry and mild conditions are
expected through Wednesday. A stronger weather system has potential 
to impact the region Thursday into early Friday. This will bring the
chance for widespread precipitation to much of Iowa, with a chance for
accumulating snowfall to portions of the state. The storm track,
timing and any precipitation amounts are still to be determined. Stay
tuned for forecast updates over the next few days. 

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

Precision Agriculture Weather Forecast For MONONA County


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Regional Hourly Observations For MONONA County
Issued at 600 AM CST SUN DEC 17 2017

   NORTHWEST IOWA
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CARROLL *      CLOUDY    25  23  93 N10       29.99F WCI  15          
CHEROKEE *     CLOUDY    27  27 100 NE6       30.03S FOG     WCI  21  
LE MARS *      CLOUDY    27  27 100 N9        30.06R WCI  17          
ORANGE CITY *  CLOUDY    27  27 100 NE3       30.04R FOG              
SHELDON *      FOG       25  25 100 NE8       30.03R VSB 1   WCI  16  
SIOUX CITY     MOCLDY    25  23  92 E5        30.05S WCI  19          
6HR MIN TEMP:  23; 6HR MAX TEMP:  31;                                

SPENCER        FOG       26  25  96 NE10      30.05R VSB 3/4 WCI  16  
6HR MIN TEMP:  26; 6HR MAX TEMP:  27;                                

STORM LAKE *   FOG       27  27 100 NE21      30.00S VSB 1/4 WCI  13  

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


Current Agricultural Weather Conditions in Iowa
Based on observations at 500am CST, Sunday December 17, 2017

Across Iowa...temperatures are near 24 degrees west, near 31 degrees central, and near 30 degrees east. Current sky conditions are partly cloudy west, cloudy central, and cloudy east. In the west, relative humidity is near 91%, and the dew point is near 22 degrees. In the central part of the state, relative humidity is near 75%, and the dew point is near 24 degrees. In the east, relative humidity is near 85%, and the dew point is near 26 degrees. Winds are calm west, where conditions are favorable for spraying. Winds are from the northeast at 5 mph central, where conditions are favorable for spraying. The wind chill is near 26 degrees central. Winds are from the east at 8 mph east, where conditions are favorable for spraying. The wind chill is near 22 degrees east. The livestock cold stress index is in the no stress category west, no stress category central, and no stress category east. Based on current available observations, the highest temperature is 40 degrees at Lamoni. The lowest temperature is 22 degrees at Fort Dodge.


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 MONONA County,IA

323 AM CST Sun Dec 17 2017

 DAY ONE  Today and Tonight

Light rain occasionally mixing with light snow will spread
northeast across southeast Nebraska and southwest Iowa this
morning. The northern edge of any precipitation should be near
Interstate 80, with the bulk of the precipitation remaining to the
south. No snow accumulation is expected.

A brief period of freezing rain could occur in southwest Iowa
where temperatures start out below freezing. But those will slowly
rise to above freezing by mid morning. Any ice accumulations will
be spotty, but could cause a few slick spots on roadways.

 DAYS TWO THROUGH SEVEN  Monday through Saturday

There is a chance for accumulating snow Thursday and Thursday
night over all of eastern Nebraska and southwest Iowa. A strong
cold front and upper level storm system will combine to bring the
chance for snow and strong north winds. Much colder temperatures
behind the front, and will remain over the area into the weekend.


 SPOTTER INFORMATION STATEMENT  

Spotter activation will not be needed today or tonight.

NWS Severe Weather Map , Convective Outlook


7-Day Forecast For MONONA County, IA
542 AM CST Sun Dec 17 2017

TODAY
Colder. Mostly cloudy. Patchy fog in the morning. Highs in the upper 30s. North winds 5 to 10 mph.

TONIGHT
Mostly cloudy through midnight then clearing. Patchy fog after midnight. Lows in the mid 20s. West winds up to 5 mph, becoming south after midnight.

MONDAY
Not as cool. Sunny. Highs in the lower 50s. Southwest winds 5 to 15 mph with gusts up to 25 mph.

MONDAY NIGHT
Partly cloudy. Lows in the upper 20s. West winds 5 to 10 mph.

TUESDAY
Sunny. Highs in the upper 40s. Northwest winds 5 to 10 mph.

TUESDAY NIGHT
Mostly clear. Lows in the lower 20s.

WEDNESDAY
Mostly sunny. Highs in the upper 40s.

WEDNESDAY NIGHT
Mostly cloudy. Lows in the upper 20s.

THURSDAY
Colder, cloudy. A chance of snow in the morning, then snow in the afternoon. Highs in the mid 30s. Chance of snow 80 percent.

THURSDAY NIGHT
Colder. Mostly cloudy. Snow likely through midnight, then a chance of snow after midnight. Lows around 11. Chance of snow 60 percent.

FRIDAY
Colder. Mostly sunny. Highs in the mid 20s.

FRIDAY NIGHT
Decreasing clouds. Lows around 11.

SATURDAY
Partly sunny. Highs in the mid 20s.

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
                                 IOWA                                                                     
                 ---------------------------------------------
                 6 TO 10 DAY  8 TO 14 DAY   30 DAY    90 DAY 
                   DEC 22-26    DEC 24-30    DEC       DEC-FEB                      
                 -----------  -----------  --------  ---------
   Temperature:      Below        Below     Normal      Below                      
 Precipitation:     Normal       Normal     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

Sunday December 17, 2017 the 351th Day of Year

---------------------------------------------------
SUN
Declination -23.380000
Distance 0.999725 AU
Rise 08:37 EST Set 17:44 EST
Transit Meridian 13:10 EST
Civil Twilight Begins 08:06 EST Ends 18:15 EST

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

DECEMBER 17TH
HISTORIC WEATHER EVENTS
...1884...
A three week blockade of snow began at Portland OR. A record December total
of 34 inches was received. (David Ludlum)
...1924...
A severe icestorm struck central Illinois. It coated the ground with nearly
two inches of glaze at Springfield. The storm caused 21 million dollars
damage along with much hardship. Ice was on the trees until the 4th of
January, and electricity was not restored until January 10th. (David
Ludlum)
...1929...
An icestorm in western New York State resulted in much damage and hardship.
A Buffalo report stated, "one was kept awake by the breaking limbs, which
snapped off with a report much louder than a rifle shot." (17th-18th) (The
Weather Channel)
...1987...
A storm in the southwestern U.S. brought heavy rain and heavy snow to parts
of California, Nevada, Arizona, Utah and New Mexico. Charleston NV was
blanketed with 12 inches of snow. Lake Havasu City AZ was drenched with
2.26 inches of rain. (Storm Data) (The National Weather Summary)
...1988...
Squalls brought locally heavy snow to the southeastern shores of Lake
Michigan. Totals in Michigan ranged up to 14 inches at Harvey. Totals in
Ohio ranged up to 16 inches at Chardon. (The National Weather Summary)
(Storm Data)
...1989...
Twenty-one cities from Kentucky to Pennsylvania reported record low
temperatures for the date, including Columbus OH with a reading of 12
degrees below zero. Heavy snow continued in the Colorado Rockies. Vail
received 65 inches of snow between the 14th and the 18th of December.
Steamboat Springs was buried under 74 inches, and reported a total of 108
inches of snow between the 10th and the 18th of the month. (The National
Weather Summary) (Storm Data)

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