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Stephenson 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
922 PM CST Wed Dec 13 2017

Mostly cloudy skies and gusty northwest winds were seen across 
central and southeast Illinois this evening. Temperatures around 
the area at 8 PM, ranged from 32 degrees at Lacon, to 45 degrees 
at Lawrenceville.

As this latest clipper system slides east of the Midwest
overnight, the strong gusty winds will slowly decrease. Cold air
will filter into the Midwest on Thursday. As the week continues, 
another clipper system will progress over the Great Lakes on
Friday, bringing another chance for snowfall to end the week and 
to start the weekend. After this system, the ridge over the 
western part of the country starts to slide east bringing warmer 
conditions for the Midwest.

Low temperatures overnight, will range from the single digits 
above zero across northeast Wisconsin, to the lower 30s across the
southern portions of Missouri and Kentucky.

High temperatures on Thursday, will range from the middle 20s 
across southern Wisconsin and northeast Indiana, to the low 40s 
across southern 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 STEPHENSON County
Issued at 1000 PM CST WED DEC 13 2017

NORTHWEST ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
MOLINE         CLOUDY    28  17  63 NW13G24   29.84R WCI  17          
SAVANNA*       CLOUDY    26  16  66 N10G17    29.83R WCI  16          

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 1000pm CST, Wednesday December 13, 2017

Across Illinois...temperatures are near 29 degrees north. Current sky condition is cloudy north. In the north, relative humidity is near 69%, and the dew point is near 20 degrees. Winds are from the north at 22 mph with gusts at 29 mph north, where conditions are not favorable for spraying due to strong winds. The wind chill is near 15 degrees north. Winds are unavailable central. Winds are unavailable south. The livestock cold stress index is in the no stress category north, unavailable category central, and unavailable category south. Based on current available observations, the highest temperature is 40 degrees at Centralia. The lowest temperature is 27 degrees at Waukegan.


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 STEPHENSON County,IL

812 PM CST Wed Dec 13 2017

 DAY ONE  TONIGHT

No hazardous weather is expected at this time.

 DAYS TWO THROUGH SEVEN  THURSDAY THROUGH TUESDAY

The probability for widespread hazardous weather is low.

 SPOTTER INFORMATION STATEMENT  

Spotter activation will not be needed today or tonight.

NWS Severe Weather Map , Convective Outlook


7-Day Forecast For STEPHENSON County, IL
827 PM CST Wed Dec 13 2017

REST OF TONIGHT
Cloudy early in the evening then becoming partly cloudy. Low around 15. North wind 10 to 20 mph with gusts to around 25 mph decreasing to 5 to 10 mph after midnight.

THURSDAY
Mostly sunny. High in the upper 20s. Northwest wind 5 to 10 mph shifting to the west in the afternoon.

THURSDAY NIGHT
Mostly cloudy. A chance of flurries through the night. Low around 18. West wind 5 to 10 mph.

FRIDAY
Partly sunny. High in the upper 20s. West wind 10 to 15 mph.

FRIDAY NIGHT
Mostly cloudy. Low in the lower 20s. West wind 5 to 10 mph shifting to the south after midnight.

SATURDAY
Mostly sunny. High in the upper 30s.

SATURDAY NIGHT
Partly cloudy. Low in the upper 20s.

SUNDAY
Mostly cloudy with a 30 percent chance of rain and snow. High in the upper 30s.

SUNDAY NIGHT
Mostly cloudy in the evening then becoming partly cloudy. Low in the mid 20s.

MONDAY THROUGH WEDNESDAY
Partly cloudy. High in the upper 30s. Low in the mid 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 19-23    DEC 21-27    DEC       DEC-FEB                      
                 -----------  -----------  --------  ---------
   Temperature:     Normal        Below     Normal     Normal                      
 Precipitation:      Below        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

Wednesday December 13, 2017 the 347th Day of Year

---------------------------------------------------
SUN
Declination -23.210000
Distance 0.999724 AU
Rise 08:12 EST Set 17:35 EST
Transit Meridian 12:53 EST
Civil Twilight Begins 07:43 EST Ends 18:04 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 13TH
HISTORIC WEATHER EVENTS
...1915...
A heavy snowstorm kicked off the snowiest winter in modern records for
western New England. (The Weather Channel)
...1962...
Record cold weather gripped the nation. The low temperature in Lexington, KY 
fell to -6 degrees (record low on this date), -3 at Covington and -3 at Paducah. 
Severe cold conditions went as far south as Florida with a hard freeze. Morning 
lows reached 35 degrees at Miami, 18 degrees at Tampa, and 12 degrees at 
Jacksonville. It was the coldest December weather of the 20th century and caused 
millions of dollars damage to crops and foliage. In Georgia, the morning low of 
9 degrees below zero at Blairsville established a state record for the month of 
December. 
...1987...
A major winter storm produced high winds and heavy snow in the Southern
Rockies and the Southern High Plains. Snowfall totals in New Mexico ranged
up to 25 inches at Cedar Crest, with up to three feet of snow reported in
the higher elevations. Winds of 75 mph, with gusts to 124 mph, were
reported northeast of Albuquerque NM. El Paso TX was buried under 22.4
inches of snow, including a single storm record of 16.8 inches in 24 hours.
The snowfall total surpassed their previous record for an entire winter
season of 18.4 inches. Record cold was experienced the next three nights as
readings dipped into the single numbers. High winds ushering unseasonably
cold air into the southwestern U.S. gusted to 100 mph at Grapevine CA. (The
National Weather Summary) (Storm Data)
...1988...
Low pressure off the Atlantic coast produced up to a foot of snow in
eastern Nassau County and western Suffolk County of southeastern New York
State. Mild weather prevailed across the western half of the country. Nine
cities reported record high temperatures for the date, including Goodland
KS with a reading of 74 degrees. (The National Weather Summary) (Storm
Data)
...1989...
Strong northwesterly winds, ushering bitterly cold arctic air into the
central U.S., produced squalls with heavy snow in the Great Lakes Region.
Snowfall totals in Upper Michigan ranged up to 24 inches at Manistique.
Nine cities in Arkansas and Texas reported record low temperatures for the
date, including Calico Rock AR with a reading of 4 degrees above zero.
(Storm Data) (The National Weather Summary)

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