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Clinton 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 CLINTON County


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

   NORTHEAST IOWA
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CEDAR RAPIDS   CLOUDY    30  27  88 E10       29.98F FOG     WCI  21  
6HR MIN TEMP:  29; 6HR MAX TEMP:  31;                                

CHARLES CITY * CLOUDY    28  28 100 E8        30.05R FOG     WCI  20  
CLINTON *      CLOUDY    29  28  96 E10       30.03F FOG     WCI  20  
DECORAH *      CLOUDY    28  28 100 E7        30.05R FOG     WCI  21  
DUBUQUE        CLOUDY    30  29  96 NE8       30.02F FOG     WCI  22  
6HR MIN TEMP:  29; 6HR MAX TEMP:  30;                                

MONTICELLO *   PTCLDY    30  28  93 NE8       30.02F FOG     WCI  23  
OELWEIN *      CLOUDY    30  30 100 E8G15     30.03S FOG     WCI  23  
WATERLOO       CLOUDY    29  27  92 NE8       30.03S FOG     WCI  21  
6HR MIN TEMP:  22; 6HR MAX TEMP:  29;                                

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 CLINTON County,IA

423 AM CST Sun Dec 17 2017

 DAY ONE  TODAY AND TONIGHT

Patchy dense fog is possible early this morning mainly near 
the Highway 20 corridor. Any dense fog that develops could
deposit a thin layer of ice on roadways. Motorists in northeast 
Iowa and far northern Illinois should remain alert for reduced 
visibility and slick roads.

Areas of dense fog may occur across portions of the Outlook area 
tonight into early Monday morning. Also, some patchy freezing 
drizzle may form in areas where the surface temperature drops 
below freezing later tonight into early Monday morning. The 
latest indications suggest that areas generally along and
30 miles north of the Interstate 80 corridor may be more favored 
for this activity. If the freezing drizzle does manage to form 
late tonight, there may be some risk of it lingering into the 
Monday morning commute.

 DAYS TWO THROUGH SEVEN  MONDAY THROUGH SATURDAY

Accumulating snow is possible over parts of the region late 
Thursday night into Friday morning, mainly north of highway 30. 
However, it is too early to forecast the exact track of the low 
and potential snow amounts. Those with travel plans late in the 
week should keep up with the latest forecast.

 SPOTTER INFORMATION STATEMENT  

Reports of any dense fog and slick road conditions early this
morning and Sunday night would be appreciated.

NWS Severe Weather Map , Convective Outlook


7-Day Forecast For CLINTON County, IA
312 AM CST Sun Dec 17 2017

EARLY THIS MORNING
Cloudy. Patchy fog. East wind 5 to 10 mph.

TODAY
Cloudy. Patchy fog in the morning. A chance of light rain possibly mixed with snow and late in the morning. A chance of light rain in the afternoon. High around 40. East wind 5 to 10 mph shifting to the west in the afternoon. Chance of precipitation 40 percent.

TONIGHT
Cloudy. Areas of fog through the night. Low around 30. West wind 5 to 10 mph.

MONDAY
Mostly cloudy in the morning then becoming mostly sunny. Areas of fog in the morning. High in the mid 40s. Southwest wind 10 to 15 mph.

MONDAY NIGHT
Partly cloudy in the evening then becoming mostly cloudy. Low in the lower 30s. Southwest wind 10 to 15 mph.

TUESDAY
Sunny. High in the mid 40s. Northwest wind 10 to 15 mph.

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

WEDNESDAY
Mostly sunny. High in the upper 30s.

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

THURSDAY
Mostly cloudy. A chance of rain in the afternoon. High in the lower 40s. Chance of rain 40 percent.

THURSDAY NIGHT
Cloudy. A chance of rain possibly mixed with snow in the evening, then rain and snow likely after midnight. Low in the upper 20s. Chance of precipitation 60 percent.

FRIDAY
Mostly cloudy. A 40 percent chance of snow in the morning. High in the lower 30s.

FRIDAY NIGHT AND SATURDAY
Mostly cloudy. Low around 17. High in the upper 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