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Hamilton County, IL Weather and Climate Synopsis

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Weather Summary For Central And Southeast Illinois
National Weather Service Lincoln IL
433 AM CST Fri Dec 15 2017

Mostly cloudy skies and cool air prevailed over central and 
southeast Illinois overnight. Pre-dawn temperatures were in the
20s.

Low pressure tracking through the northern Great Lakes today, will
bring light snow as far south as northern Illinois, into northern
Indiana. Farther south, partly to mostly cloudy skies, and
seasonable temperatures are expected. Southwest winds on Saturday,
will boost temperatures well above normal. A low pressure system 
approaching from the southwest, will spread scattered rain showers
across the region, on Sunday.

High temperatures today will range from near 30 degrees in
northern Indiana, to the lower 40s in central Missouri. Lows
tonight will drop into the mid 20s to mid 30s.

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

Click here for UKAWC Point Agricultural, Lawn & Garden Forecast/Outlook in case of corrupt tables.
Regional Hourly Observations For HAMILTON County
Issued at 500 AM CST FRI DEC 15 2017

SOUTH-CENTRAL ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CARBONDALE     CLOUDY    30  21  69 W6        30.12S WCI  24          
CAIRO*         CLOUDY    31  23  71 W5        30.13S WCI  27          
EFFINGHAM*     CLOUDY    28  20  73 W6        30.09S WCI  22          
MARION         CLOUDY    32  21  63 CALM      30.12S                  
CENTRALIA*     CLOUDY    30  22  72 W7        30.09S WCI  23          
SALEM*         CLOUDY    30  21  67 W6        30.09S WCI  24          
METROPOLIS*    CLOUDY    32  22  67 W6        30.14R WCI  26          

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 500am CST, Friday December 15, 2017

Across Illinois...temperatures are near 25 degrees north, near 25 degrees central, and near 32 degrees south. Current sky conditions are flurries north, mostly cloudy central, and cloudy south. In the north, relative humidity is near 72%, and the dew point is near 17 degrees. In the central part of the state, relative humidity is near 74%, and the dew point is near 18 degrees. In the south, relative humidity is near 63%, and the dew point is near 21 degrees. Winds are from the west at 9 mph north, where conditions are not favorable for spraying due to flurries. The wind chill is near 15 degrees north. Winds are from the southwest at 8 mph central, where conditions are favorable for spraying. The wind chill is near 16 degrees central. Winds are calm 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 32 degrees at Mount Vernon, Metropolis, and Marion. The lowest temperature is 22 degrees at Danville.


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 HAMILTON County,IL

349 AM CST Fri Dec 15 2017

 DAY ONE  Today and Tonight

No hazardous weather is expected at this time.

 DAYS TWO THROUGH SEVEN  Saturday through Thursday

Gusty southwest winds, low humidity, and dry vegetation will
result in the return of elevated fire potential on Saturday. 

 SPOTTER INFORMATION STATEMENT  

Spotter activation is not anticipated.

NWS Severe Weather Map , Convective Outlook


7-Day Forecast For HAMILTON County, IL
347 AM CST Fri Dec 15 2017

TODAY
Mostly cloudy. Highs in the lower 40s. West winds 5 to 10 mph.

TONIGHT
Mostly clear. Lows in the upper 20s. Southwest winds around 5 mph.

SATURDAY
Sunny. Highs in the mid 50s. Southwest winds 10 to 15 mph.

SATURDAY NIGHT
Mostly clear in the evening then becoming mostly cloudy. Lows in the mid 30s. South winds 10 to 15 mph in the evening decreasing to around 5 mph after midnight.

SUNDAY
Mostly cloudy. Rain likely in the morning, then a chance of rain in the afternoon. Highs in the upper 40s. South winds 5 to 10 mph. Chance of precipitation 70 percent.

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

MONDAY
Partly sunny. Highs in the mid 50s.

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

TUESDAY
Mostly sunny. Highs in the mid 50s.

TUESDAY NIGHT
Clear. Lows around 30.

WEDNESDAY
Mostly sunny. Highs in the lower 50s.

WEDNESDAY NIGHT
Mostly clear. Lows in the mid 30s.

THURSDAY
Partly sunny. Highs in the mid 50s.

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

Friday December 15, 2017 the 349th Day of Year

---------------------------------------------------
SUN
Declination -23.310000
Distance 0.999725 AU
Rise 08:14 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 15TH
HISTORIC WEATHER EVENTS
...1839...
The first of triple storms hit Massachusetts Bay. The storm produced whole
gales, and more than 20 inches of snow in interior New England. There was
great loss of life at Gloucester MA. (David Ludlum)
...1901...
An intense cold front swept across the eastern U.S. The cold front produced
heavy rain in Louisiana, and heavy snow in the northeastern U.S. (David
Ludlum)
...1945...
A record December snowstorm buried Buffalo NY under 36.6 inches of snow,
with unofficial totals south of the city ranging up to 70 inches. Travel
was brought to a halt by the storm. (14th-17th) (The Weather Channel)
...1987...
A major winter storm hit the Great Lakes Region, intensifying explosively
as it crossed northern Illinois. High winds and heavy snow created blizzard
conditions in southeastern Wisconsin. Winds gusted to 73 mph, and snowfall
totals ranged up to 17 inches at LaFarge. The barometric pressure at
Chicago IL dropped three quarters of an inch in six hours to 28.96 inches,
a record low reading for December. Up to a foot of snow blanketed northern
Illinois, and winds in the Chicago area gusted to 75 mph. O'Hare Airport in
Chicago was closed for several hours, for only the fourth time in twenty
years. High winds derailed train cars at Avon IN. Light winds and partly
sunny skies were reported near the center of the storm, a feature typical
of tropical storms. (The National Weather Summary) (Storm Data)
...1988...
High pressure in the Pacific Northwest and low pressure in the southwestern
U.S. combined to produced high winds from Utah to California. Winds gusting
to 70 mph in the San Francisco area left nearly 300,000 residents without
electricity. Winds in Utah gusted to 105 mph at Centerville. (The National
Weather Summary) (Storm Data)
...1989...
A couple of low pressure systems spread heavy snow across the northeastern
U.S. Up to two feet of snow was reported along Lake Erie in northeastern
Ohio, and up to ten inches was reported in Connecticut. Heavy snow squalls
developed over Michigan for the third day in a row. Three Oaks MI reported
25 inches of snow in two days. Twenty-six cities in the north central U.S.
reported record low temperatures for the date. The low of 10 degrees below
zero at Wichita KS was a December record for that location. (The National
Weather Summary) (Storm Data)

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