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Rock Island County, IL Weather and Climate Synopsis

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Weather Summary For Central And Southeast Illinois
National Weather Service Lincoln IL
318 PM CST Sun Dec 17 2017
Cloudy skies were seen across central and southeast Illinois,  
through the afternoon hours. A few light showers were seen, mainly
west of I 55, through the afternoon, as well. Temperatures across
the area at 3 p.m., ranged from 44 degrees at Olney, to 50 degrees
at Springfield.

A weak weather system will track northeast across the region this
evening, producing scattered rain showers. 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 ROCK ISLAND County
Issued at 900 PM CST SUN DEC 17 2017

NORTHWEST ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
MOLINE         CLOUDY    40  39  97 CALM      29.98S FOG              
STERLING*      LGT RAIN  38  34  85 CALM      29.99F                  
SAVANNA*       CLOUDY    36  35  98 CALM      29.98F FOG              

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 900pm CST, Sunday December 17, 2017

Across Illinois...temperatures are near 36 degrees north, near 42 degrees central, and near 44 degrees south. Current sky conditions are cloudy north, cloudy central, and cloudy south. In the north, relative humidity is near 89%, and the dew point is near 33 degrees. In the central part of the state, relative humidity is near 85%, and the dew point is near 38 degrees. In the south, relative humidity is near 96%, and the dew point is near 43 degrees. There is patchy fog north. Winds are calm north, where conditions are favorable for spraying. Winds are from the south at 12 mph central, where conditions are favorable for spraying. Winds are from the south at 9 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 48 degrees at Alton. The lowest temperature is 35 degrees at Waukegan and Freeport.


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 ROCK ISLAND County,IL

337 PM CST Sun Dec 17 2017

 DAY ONE  THIS AFTERNOON AND TONIGHT

Fog and drizzle will develop tonight over portions of the outlook
area. The potential for dense fog is low, but there is a chance
for some patchy freezing drizzle to occur where the surface 
temperature drops below freezing late this evening into early 
Monday morning. The favored areas are along and east of a line
from DeWitt to Dubuque. If freezing drizzle does occur, it may
linger into the Monday morning commute, especially in far 
northwest Illinois.

 DAYS TWO THROUGH SEVEN  MONDAY THROUGH SATURDAY

Latest indications regarding the Thursday into Friday storm system, 
are that it is shifting the higher potential for accumulating 
snow to the northwest and north of the Outlook Area. It is still 
early for determining the exact track of this system, and those 
with travel plans late in the week should keep up with the latest 
forecasts and updates.

 SPOTTER INFORMATION STATEMENT  

Reports of any slick road conditions late tonight and early Monday
morning would be appreciated.

NWS Severe Weather Map , Convective Outlook


7-Day Forecast For ROCK ISLAND County, IL
912 PM CST Sun Dec 17 2017

REST OF TONIGHT
Cloudy. Areas of fog. Widespread drizzle. Low in the mid 30s. Southwest wind 5 to 10 mph. Chance of precipitation 60 percent.

MONDAY
Mostly cloudy in the morning then clearing. Patchy fog in the morning. Patchy drizzle in the morning. High in the upper 40s. Southwest wind 10 to 15 mph. Chance of precipitation 20 percent.

MONDAY NIGHT
Partly cloudy. Low in the mid 30s. Southwest wind 10 to 15 mph with gusts to around 25 mph.

TUESDAY
Mostly sunny. High around 50. Northwest wind 5 to 10 mph.

TUESDAY NIGHT
Colder. Mostly clear. Low in the mid 20s. North wind 5 to 10 mph.

WEDNESDAY
Mostly sunny. High in the lower 40s.

WEDNESDAY NIGHT
Partly cloudy in the evening then becoming mostly cloudy. Low around 30.

THURSDAY
Mostly cloudy. A 30 percent chance of rain in the afternoon. High in the mid 40s.

THURSDAY NIGHT
Mostly cloudy. A chance of rain in the evening, then a chance of rain and snow after midnight. Low in the lower 30s. Chance of precipitation 40 percent.

FRIDAY
Mostly cloudy with a 30 percent chance of rain and snow. High around 40.

FRIDAY NIGHT THROUGH SATURDAY NIGHT
Colder. Mostly cloudy. Low around 19. High around 30.

SUNDAY
Mostly cloudy with a 40 percent chance of snow. High 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 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

Sunday December 17, 2017 the 351th Day of Year

---------------------------------------------------
SUN
Declination -23.380000
Distance 0.999725 AU
Rise 08:15 EST Set 17:36 EST
Transit Meridian 12:55 EST
Civil Twilight Begins 07:45 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 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