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Knox County, IL 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 Central And Southeast Illinois
National Weather Service Lincoln IL
400 PM CST Thu Dec 14 2017

Partly to mostly cloudy skies, winds noticeably lighter than 
yesterday, and chilly temperatures were seen across central and 
southeast Illinois this afternoon. Temperatures around the area at
3 PM, ranged from 27 degrees at Lacon, to 34 degrees at 
Lawrenceville.

High pressure will dominate the Midwest through Friday, bringing 
dry weather and seasonable temperatures. Southerly flow developing
this weekend will send temperatures several degrees above normal.
The next storm system approaching from the southwest, will spread
scattered rain showers across the region, on Sunday.

Low temperatures overnight, will range from the mid teens across 
northeast Iowa, southern Wisconsin, northern Illinois, northern 
Indiana, to the lower 30s across western Missouri.

High temperatures on Friday, will range from the mid 20s across 
central Wisconsin, to the mid 40s across westesrn Kentucky and the
southwest two- thirds of Missouri and western Kentucky.

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

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Regional Hourly Observations For KNOX County
Issued at 400 PM CST THU DEC 14 2017

WEST-CENTRAL ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
QUINCY         CLOUDY    28  16  60 W7        30.08S WCI  21          
GALESBURG*     MOCLDY    28  19  67 CALM      30.08S                  
MACOMB*        CLOUDY    30  17  57 CALM      30.10R                  
JACKSONVILLE*  CLOUDY    29  16  57 W5        30.09S WCI  24          
PITTSFIELD*    CLOUDY    30  18  61 W3        30.10S                  

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 400pm CST, Thursday December 14, 2017

Across Illinois...temperatures are near 25 degrees north, near 31 degrees central, and near 33 degrees south. Current sky conditions are partly cloudy north, cloudy central, and cloudy south. In the north, relative humidity is near 53%, and the dew point is near 10 degrees. In the central part of the state, relative humidity is near 54%, and the dew point is near 16 degrees. In the south, relative humidity is near 58%, and the dew point is near 20 degrees. Winds are from the southwest at 7 mph north, where conditions are favorable for spraying. The wind chill is near 17 degrees north. Winds are from the west at 5 mph central, where conditions are favorable for spraying. The wind chill is near 26 degrees central. Winds are from the southwest at 5 mph south, where conditions are favorable for spraying. The wind chill is near 29 degrees south. 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 35 degrees at Metropolis. The lowest temperature is 23 degrees at Rochelle, Freeport, and De Kalb.


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 KNOX County,IL

401 PM CST Thu Dec 14 2017

 DAY ONE  TONIGHT  

No hazardous weather is expected at this time. 
 
 DAYS TWO THROUGH SEVEN  FRIDAY THROUGH WEDNESDAY  

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 KNOX County, IL
305 PM CST Thu Dec 14 2017

TONIGHT
Mostly cloudy. Chance of flurries after midnight. Near steady temperature in the lower 20s. West winds 5 to 10 mph.

FRIDAY
Partly sunny. Highs in the mid 30s. West winds 10 to 15 mph with gusts to around 25 mph.

FRIDAY NIGHT
Mostly cloudy in the evening then becoming partly cloudy. Near steady temperature in the upper 20s. Southwest winds 5 to 10 mph.

SATURDAY
Not as cool. Sunny. Highs in the upper 40s. Southwest winds 5 to 15 mph.

SATURDAY NIGHT
Mostly clear. Lows in the lower 30s. South winds around 5 mph.

SUNDAY
Cloudy with chance of rain showers. Highs in the lower 40s. Chance of showers 50 percent.

SUNDAY NIGHT AND MONDAY
Mostly cloudy. Lows around 30. Highs in the mid 40s.

MONDAY NIGHT
Partly cloudy. Lows in the lower 30s.

TUESDAY AND TUESDAY NIGHT
Mostly clear. Highs in the mid 40s. Lows in the mid 20s.

WEDNESDAY AND WEDNESDAY NIGHT
Partly cloudy. Highs in the lower 40s. Lows in the lower 30s.

THURSDAY
Partly sunny with a 40 percent chance of rain showers. Highs in the mid 40s.

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 20-24    DEC 22-28    DEC       DEC-FEB                      
                 -----------  -----------  --------  ---------
   Temperature:     Normal        Below     Normal     Normal                      
 Precipitation:     Normal        Above     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

Thursday December 14, 2017 the 348th Day of Year

---------------------------------------------------
SUN
Declination -23.270000
Distance 0.999725 AU
Rise 08:13 EST Set 17:35 EST
Transit Meridian 12:54 EST
Civil Twilight Begins 07:44 EST Ends 18:05 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 14TH
HISTORIC WEATHER EVENTS
...1901...
Wet and cold: Louisville, KY set both a record low (2 degrees) and a daily 
precipitation record (2.21 inches). (The high temperature that day was 42.)
(NWS Louisville)
...1924...
The temperature at Helena MT plunged 79 degrees in 24 hours, and 88 degrees
in 34 hours. The mercury plummeted from 63 above to 25 below zero. At
Fairfield MT the temperature plunged 84 degrees in just 12 hours, from 63
at Noon to 21 below zero at midnight. (David Ludlum)
...1987...
A powerful storm spread heavy snow from the Southern High Plains to the
Middle Mississippi Valley, and produced severe thunderstorms in the Lower
Mississippi Valley. During the evening a tornado hit West Memphis TN
killing six persons and injuring two hundred others. The tornado left 1500
persons homeless, and left all of the residents of Crittendon County
without electricity. Kansas City MO was blanketed with 10.8 inches of snow,
a 24 hour record for December, and snowfall totals in the Oklahoma
panhandle ranged up to 14 inches. Strong winds, gusting to 63 mph at Austin
TX, ushered arctic cold into the Great Plains, and caused considerable
blowing and drifting of snow. (Storm Data) (The National Weather Summary)
...1988...
Blowing snow was reported in western Kansas, as snow and gusty winds
plagued the Central Rockies and Central High Plains. Colorado Springs CO
reported thirteen inches of snow. Low pressure in Wisconsin brought heavy
snow to the Lake Superior snowbelt area, with 22 inches reported at
Marquette MI. (Storm Data) (The National Weather Summary)
...1989...
High winds and heavy snow prevailed from Montana to Colorado. Snowfall
totals in Wyoming ranged up to 20 inches at Burgess Junction, leaving up to
48 inches on the ground in the northeast sections of the state. Wind gusts
in Colorado reached 87 mph south of the town of Rollinsville. Strong
northwesterly winds continued to produce heavy snow squalls in the Great
Lakes Region. Totals in northeastern Lower Michigan ranged up to 29 inches
at Hubbard Lake, with 28 inches reported at Posen. Two day totals in
northeastern Wisconsin ranged up to thirty inches. (Storm Data) (The
National Weather Summary)

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