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Sangamon County, IL Weather and Climate Synopsis

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Weather Summary For Central And Southeast Illinois
National Weather Service Lincoln IL
921 PM CST Sun Dec 17 2017


Cloudy skies remained in place, across central and southeast
Illinois, through the late evening hours. Temperatures across the
area at 9 p,m., ranged from 41 degrees at Robinson, to 47 degrees
at Springfield.

A weak weather system will track northeast across the region overnight,
producing scattered rain showers to portions of Iowa, Illinois,
and Wisconsin. Patchy drizzle or sprinkles will linger into 
Monday, as a weak front shifts through the Midwest. After this 
system exits to the east, dry and seasonably mild conditions will 
prevail over the Midwest, through mid-week.

Overnight low temperatures, will range from the 20s across
portions of Iowa and Wisconsin, to the middle 40s across the
Missouri bootheel.

High temperatures on Monday, will range from the 30s across
Wisconsin, to near 60 degrees across southwest Missouri.

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

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Regional Hourly Observations For SANGAMON County
Issued at 100 AM CST MON DEC 18 2017

CENTRAL ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
PEORIA         NOT AVBL                                               
SPRINGFIELD    CLOUDY    47  43  86 SW9       30.03R                  
TAYLORVILLE    NOT AVBL                                               

Current Temperatures, Dewpoint Map, RH, Wind, Regional Obs, Surface 4-Panel
Meteograms : Springfield , Peoria , Quad City , Chicago (O'Hare) , Rockford


Current Agricultural Weather Conditions in Illinois
Based on observations at 100am CST, Monday December 18, 2017

Across Illinois...temperatures are near 41 degrees north, near 47 degrees central, and near 45 degrees south. Current sky conditions are cloudy north, cloudy central, and cloudy south. In the north, relative humidity is near 82%, and the dew point is near 36 degrees. In the central part of the state, relative humidity is near 86%, and the dew point is near 43 degrees. In the south, relative humidity is near 100%, and the dew point is near 45 degrees. There is patchy fog south. Winds are from the south at 7 mph north, where conditions are favorable for spraying. Winds are from the southwest at 9 mph central, where conditions are favorable for spraying. Winds are from the south at 7 mph south, where conditions are favorable for spraying. The livestock cold stress index is in the no stress category north, no stress category central, and no stress category south. Based on current available observations, the highest temperature is 47 degrees at Springfield and Decatur. The lowest temperature is 37 degrees at Sterling.


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),Livestock Heat Stress Index (LSI), Wind Chill Map
Hazardous Weather Outlook For SANGAMON County,IL

301 PM CST Sun Dec 17 2017

 DAY ONE  TONIGHT  

No hazardous weather is expected at this time. 
 
 DAYS TWO THROUGH SEVEN  MONDAY THROUGH SATURDAY  

No hazardous weather is expected at this time. 

 SPOTTER INFORMATION STATEMENT  

Spotter activation is not anticipated through tonight.

NWS Severe Weather Map , Convective Outlook


7-Day Forecast For SANGAMON County, IL
812 PM CST Sun Dec 17 2017

REST OF TONIGHT
Cloudy. Areas of fog. Patchy drizzle after midnight. Near steady temperature in the mid 40s. Southwest winds 5 to 10 mph. Chance of precipitation 20 percent.

MONDAY
Mostly cloudy. Patchy fog in the morning. Highs in the lower 50s. Southwest winds 5 to 15 mph with gusts to around 25 mph.

MONDAY NIGHT
Partly cloudy. Lows in the upper 30s. Southwest winds 10 to 15 mph.

TUESDAY
Mostly sunny. Highs in the mid 50s. West winds 5 to 10 mph.

TUESDAY NIGHT
Partly cloudy. Lows in the lower 30s. North winds 5 to 10 mph.

WEDNESDAY AND WEDNESDAY NIGHT
Mostly clear. Highs in the upper 40s. Lows in the lower 30s.

THURSDAY
Mostly sunny. Highs in the lower 50s.

THURSDAY NIGHT
Mostly cloudy. Lows in the upper 30s.

FRIDAY
Mostly cloudy with a 50 percent chance of rain. Highs in the upper 40s.

FRIDAY NIGHT
Colder. Mostly cloudy with a 30 percent chance of snow, possibly mixed with rain. Lows in the mid 20s.

SATURDAY THROUGH SUNDAY
Mostly cloudy. Highs in the mid 30s. Lows in the lower 20s.

12-48 Hr Surface, 12-48 Hr ETA 500mb/Sfc, TWC Forecast, Fire Danger, Day 1 Precip, Day 2 Precip, Days 1-5 Precip
NGM 60 Hr Forecast Meteograms : Springfield , Peoria , Quad City , Chicago (O'Hare) , Rockford , Severe Weather Pot.-Day 1, Day 2


Medium & Long Range Outlook For Illinois
                             ILLINOIS                                                                     
                 ---------------------------------------------
                 6 TO 10 DAY  8 TO 14 DAY   30 DAY    90 DAY 
                   DEC 23-27 DEC 25-DEC 31    DEC       DEC-FEB                      
                 -----------  -----------  --------  ---------
   Temperature:      Below        Below     Normal     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
MRF 10-Day Forecast Meteograms : Springfield , Peoria , Quad City , Chicago (O'Hare) , Rockford

Almanac Information

Monday December 18, 2017 the 352th Day of Year

---------------------------------------------------
SUN
Declination -23.410000
Distance 0.999725 AU
Rise 08:16 EST Set 17:36 EST
Transit Meridian 12:56 EST
Civil Twilight Begins 07:46 EST Ends 18:06 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 18TH
HISTORIC WEATHER EVENTS
...1957...
A tornado swept across Jackson County, Williamson County and Franklin
County in southern Illinois killing eleven persons. (David Ludlum)
...1981...
A heavy lake-effect snow blanketed the southern and southeast shores of
Lake Michigan leaving up to 22 inches of snow at Valparaiso IND. (David
Ludlum)
...1983...
Record cold hit the north central states. At Havre MT the mercury plunged
to a record reading of 34 degrees below zero. (Sandra and TI Richard
Sanders - 1987)
...1984...
A storm over southern California left up to 16 inches of snow in the
mountains and upper deserts, with 13 inches reported at Lancaster. Edwards
Air Force Base was closed, and Interstate 5 was closed from Castaic to the
Tehachapis Mountains. (18th-19th) (The Weather Channel)
...1986...
A strong winter storm, which developed off the coast of New Jersey and
moved out to sea, lashed the northeastern U.S. with high winds, heavy rain,
and heavy snow. The storm left snowfall amounts of up to 30 inches in
Vermont, 24 inches in Massachusetts, and 20 inches in New Hampshire. The
highest rainfall amounts approached four inches in southern New England,
where winds gusted to 70 mph. (Storm Data)
...1987...
A weakening storm moved into the Rocky Mountain Region producing six inches
of snow at the Platoro Reservoir in the San Juan Mountains of Colorado. The
storm then spread rain and drizzle across the Southern High Plains into the
Middle Mississippi Valley, with thunderstorms over Texas. (Storm Data) (The
National Weather Summary)
...1988...
Warm weather prevailed in the central U.S. while cool weather prevailed
across the eastern states. Sheridan WY, with a record warm afternoon high
of 68 degrees, was seven degrees warmer than Key West FL. (The National
Weather Summary)
...1989...
A winter storm moving out of the Great Plains Region spread freezing rain,
sleet and snow across parts of the southeastern U.S. Freezing rain resulted
in 170 auto accidents in the Memphis area during the evening hours.
Unseasonably warm weather continued ahead of arctic cold front. Miami FL
equalled their record for December with an afternoon high of 87 degrees.
(Storm Data) (The National Weather Summary)

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