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Lake 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
720 PM CST Mon Feb 19 2018

A warm front brought scattered showers and thunderstorms to
central and southeast Illinois on Monday, along with unseasonably
warm temperatures. Highs ranged from around 60 degrees near I-74,
to 70 degrees south of I-70.

Low pressure will track into the lower Great Lakes tonight, as a 
cold front slowly approaches from the Plains. Several waves of 
showers and thunderstorms are expected across the Midwest, for
tonight through Tuesday. Periods of heavy rain are possible, with
total rainfall amounts of 2 to 4 inches expected by midweek. This
could cause significant rises on area streams and rivers. Southerly
wind flow will produce spring-like temperatures across the 
region, through Tuesday. As the cold front pushes through on 
Tuesday night, lingering rain could change to light freezing rain,
primarily northwest of I-55.

Low temperatures tonight will range from the upper 20s in northern
Iowa, to the mid 60s in southern Illinois. Highs on Tuesday will
range from the upper 20s in northern Iowa, to near 80 degrees in
southern Indiana.

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 LAKE County
Issued at 900 PM CST MON FEB 19 2018

NORTHEAST ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHICAGO-OHARE  LGT RAIN  57  54  89 S20G25    29.81R                  
CHICAGO-MIDWAY LGT RAIN  58  56  93 S17G25    29.82F                  
AURORA         RAIN      50  50 100 S13       29.81R VSB 1/4          
LANSING*       RAIN      56  56 100 S13       29.86R                  
JOLIET*        TSTM      60  59  96 S15G23    29.85R                  
WAUKEGAN       CLOUDY    56  55  97 S16G28    29.79S                  
DUPAGE AIRPORT CLOUDY    54  54 100 S13       29.80S FOG              
KANKAKEE*      TSTM      58  58  97 SW8G21    29.87S                  
WHEELING       LGT RAIN  58  57  97 S15G24    29.81S                  
MORRIS*        TSTM      57  56  97 S18G29    29.83R                  
ROMEOVILLE*    TSTM      57  55  95 SW25G31   29.83R                  
NORTHERLY ISL    N/A     58  55  90 S17         N/A                   

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, Monday February 19, 2018

Across Illinois...temperatures are near 48 degrees north, near 64 degrees central, and near 66 degrees south. Current sky conditions are light rain north, cloudy central, and cloudy south. In the north, relative humidity is near 96%, and the dew point is near 47 degrees. In the central part of the state, relative humidity is near 80%, and the dew point is near 58 degrees. In the south, relative humidity is near 78%, and the dew point is near 59 degrees. Visibility is less than one mile north. Winds are from the south at 12 mph north, where conditions are not favorable for spraying due to light rain. Winds are from the south at 20 mph with gusts at 28 mph central, where conditions are not favorable for spraying due to strong winds. Winds are from the south at 14 mph south, where conditions are not favorable for spraying due to strong winds. 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 68 degrees at Salem, Harrisburg, and Centralia. The lowest temperature is 46 degrees at Rochelle.


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 LAKE County,IL

423 PM CST Mon Feb 19 2018 /523 PM EST Mon Feb 19 2018/

 DAY ONE  Tonight.

WEATHER HAZARDS EXPECTED:
  Significant Flooding Risk.
  Limited Thunderstorm Risk.
  Limited Fog Risk.

DISCUSSION:

Periods of showers and some thunderstorms are likely tonight with
locally heavy rainfall likely, especially north of I-80. The heavy
rain will likely result in flooding, potentially significant.
Also, some locally dense fog is possible tonight, mainly near the
Wisconsin border. 

 DAYS TWO THROUGH SEVEN  Tuesday through Sunday.

Tuesday  
  Significant Flooding Risk.
  Limited Thunderstorm Risk.
  Elevated Ice Accumulation Risk.
Wednesday  
  Limited Ice Accumulation Risk.

DISCUSSION:

Multiple rounds of showers and thunderstorms will produce
widespread heavy rainfall Tuesday over the entire outlook area and
south of I-80 into Tuesday night. Flooding, potentially quite
significant in some areas, is likely to result from the heavy
rain. 

Rain could change to a several hour period of freezing rain before
ending Tuesday night. Some ice accumulation is possible, mainly  
on elevated objects like trees, power lines, and untreated bridge
decks. 

Many rivers will remain in flood through the week. Some rivers may 
reach major flood stage. 

 SPOTTER INFORMATION STATEMENT  

Spotter activation will not be necessary through tonight.

NWS Severe Weather Map , Convective Outlook


7-Day Forecast For LAKE County, IL
837 PM CST Mon Feb 19 2018


DENSE FOG ADVISORY IN EFFECT UNTIL 3 AM CST TUESDAY


FLOOD WATCH IN EFFECT THROUGH TUESDAY AFTERNOON

TONIGHT
Showers and a chance of thunderstorms. Areas of dense fog. Locally heavy rainfall possible. Unseasonably mild. Lows in the upper 40s. Southwest winds 10 to 20 mph with gusts up to 30 mph in the evening decreasing to 5 to 10 mph after midnight. Chance of precipitation 100 percent.

TUESDAY
Showers and a slight chance of thunderstorms. Locally heavy rainfall possible. Unseasonably mild. Highs in the upper 50s. Southwest winds 10 to 15 mph. Chance of precipitation 100 percent.

TUESDAY NIGHT
Cloudy. Light rain likely in the evening, then a chance of light freezing rain and a slight chance of light sleet after midnight. No sleet accumulation. No ice accumulation. Lows in the mid 20s. Northwest winds 10 to 20 mph. Chance of precipitation 70 percent.

WEDNESDAY
Partly cloudy. Highs in the mid 30s. North winds 10 to 15 mph.

WEDNESDAY NIGHT
Partly cloudy. Lows in the lower 20s. Northeast winds 5 to 10 mph.

THURSDAY
Partly sunny. Highs in the upper 30s.

THURSDAY NIGHT
Mostly cloudy with a 50 percent chance of snow. Lows in the lower 30s.

FRIDAY
Mostly cloudy. Rain and snow likely in the morning. Highs in the mid 40s. Chance of precipitation 60 percent.

FRIDAY NIGHT
Partly cloudy. A 30 percent chance of snow after midnight. Lows in the upper 20s.

SATURDAY
Partly sunny. Highs in the mid 40s.

SATURDAY NIGHT
Rain likely in the evening, then snow and rain after midnight. Lows in the lower 30s. Chance of precipitation 80 percent.

SUNDAY
Partly sunny. A 40 percent chance of rain and snow in the morning. Highs in the lower 40s.

SUNDAY NIGHT AND MONDAY
Partly cloudy. Lows in the upper 20s. Highs in the lower 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 
                FEB 25-MAR 1 FEB 27-MAR 5    MAR       MAR-MAY                      
                 -----------  -----------  --------  ---------
   Temperature:      Above        Above      Below     Normal                      
 Precipitation:      Above        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

Monday February 19, 2018 the 50th Day of Year

---------------------------------------------------
SUN
Declination -10.910000
Distance 0.999723 AU
Rise 07:46 EST Set 18:40 EST
Transit Meridian 13:12 EST
Civil Twilight Begins 07:19 EST Ends 19:07 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

FEBRUARY 19TH
HISTORIC WEATHER EVENTS
...1871...
A. Lapham, in Cincinnati, wrote the first public weather forecast.
...1884...
Severe thunderstorms spawned sixty tornadoes in the southeastern U.S.,
killing more than 420 persons and causing three million dollars damage.
Georgia and the Carolinas hardest were hit in the tornado outbreak. (David
Ludlum)
...1888...
A tornado struck Mount Vernon IL. The tornado killed sixteen persons along
its 62 mile path. (David Ludlum)
...1954...
High winds across the southern half of the Great Plains, gusting to 85 mph,
caused the worst duststorms since the 1930s. Graders were needed in places
to clear fence high dirt drifts. (The Weather Channel)

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