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LaSalle 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
1116 AM CDT Thu Jul 19 2018

Partly to mostly cloudy skies were seen across central and 
southeast Illinois, through the late morning hours. A few showers
and thunderstorms were seen across a few locations west of I 55 
this morning. Temperatures across the area at 11 a.m., ranged from
74 degrees at Jacksonville, to 84 degrees at Lawrenceville.

Clouds will continue to increase today, as winds shift to the 
south, ushering in warm, moist air to the region. There is also a 
frontal system in the Midwest which will track southeast today. 
This will bring the chance for showers and isolated thunderstorms 
to the region today and tonight. Strong to severe storms are 
possible for portions of the Midwest and Ohio Valley this evening 
through Friday.

High temperatures today, will range from the middle 70s across
eastern Iowa, to the upper 90s across southwest Missouri.

Overnight low temperatures, will range from near 60 degrees across
northern Wisconsin, to the middle 70s across southwest Missouri.

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 LASALLE County
Issued at 1200 PM CDT THU JUL 19 2018

NORTHEAST ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHICAGO-OHARE  PTSUNNY   82  56  40 S14G23    29.95S HX  82           
CHICAGO-MIDWAY PTSUNNY   85  59  41 S13G20    29.95F HX  84           
AURORA         FAIR      81  62  52 S13       29.95F HX  82           
LANSING*       FAIR      82  64  56 S13       29.97S HX  83           
JOLIET*        FAIR      83  64  51 SE12      29.96S HX  84           
WAUKEGAN       FAIR      77  63  61 SE8       29.96F                  
DUPAGE AIRPORT FAIR      81  59  47 S15       29.95F HX  81           
KANKAKEE*      FAIR      82  61  48 S10G16    29.97F HX  82           
WHEELING       FAIR      85  57  38 S13       29.96F HX  84           
MORRIS*        FAIR      81  65  57 SE9       29.95S HX  83           
ROMEOVILLE*    FAIR      82  62  49 S13G20    29.96S HX  83           
NORTHERLY ISL    N/A     79  64  60 E8          N/A  HX  81           

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 1200pm CDT, Thursday July 19, 2018

Across Illinois...temperatures are near 79 degrees north, near 81 degrees central, and near 83 degrees south. Current sky conditions are cloudy north, partly sunny central, and cloudy south. In the north, relative humidity is near 48%, and the dew point is near 58 degrees. The heat index is near 80 degrees north. In the central part of the state, relative humidity is near 56%, and the dew point is near 64 degrees. The heat index is near 82 degrees central. In the south, relative humidity is near 54%, and the dew point is near 65 degrees. The heat index is near 85 degrees south. The livestock heat stress category is no stress north, no stress central, and no stress south. Winds are from the southeast at 13 mph north, where conditions are not favorable for spraying due to strong winds. Winds are from the south at 12 mph central, where conditions are favorable for spraying. Winds are from the southeast at 6 mph south, where conditions are favorable for spraying. Based on current available observations, the highest temperature is 150/ degrees at Northerly Island. The lowest temperature is 68 degrees at Moline.


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 LASALLE County,IL

512 AM CDT Thu Jul 19 2018 /612 AM EDT Thu Jul 19 2018/

 DAY ONE  Today and Tonight.

Weather hazards expected  

  Elevated Thunderstorm Risk tonight.
  High Swim Risk late tonight.

DISCUSSION  

Scattered thunderstorms are likely tonight. The primary threats
with these storms will be cloud to ground lightning and heavy
rain. 

 DAYS TWO THROUGH SEVEN  Friday through Wednesday.

Friday  
  Limited Severe Thunderstorm Risk.
  High Swim Risk
Saturday  
  Limited Thunderstorm Risk.
  Limited Lakeshore Flood Risk
  High Swim Risk
Sunday  
  High Swim Risk
Tuesday and Wednesday  
  Limited Thunderstorm Risk.

 SPOTTER INFORMATION STATEMENT  

  Spotter activation will not be necessary through tonight.

GENERAL STORM MOTION OF THE DAY:

 Moving toward east northeast at 25 to 30 mph.

NWS Severe Weather Map , Convective Outlook


7-Day Forecast For LASALLE County, IL
1031 AM CDT Thu Jul 19 2018

REST OF TODAY
Mostly cloudy. A 30 percent chance of showers and thunderstorms in the afternoon. Highs in the upper 70s. South winds 10 to 15 mph.

TONIGHT
Showers likely and a chance of thunderstorms in the evening, then showers with thunderstorms likely after midnight. Lows in the mid 60s. South winds 10 to 15 mph. Chance of precipitation 80 percent.

FRIDAY
Intermittent showers and a chance of thunderstorms. Highs in the upper 70s. Southwest winds 10 to 15 mph in the morning becoming west with gusts up to 30 mph in the afternoon. Chance of precipitation 60 percent.

FRIDAY NIGHT
Mostly cloudy. Scattered showers and a slight chance of thunderstorms in the evening, then scattered showers after midnight. Lows in the mid 60s. Northwest winds 10 to 15 mph. Chance of precipitation 40 percent.

SATURDAY
Mostly cloudy. Scattered showers in the morning, then scattered showers and a chance of thunderstorms in the afternoon. Highs in the upper 70s. Northwest winds 10 to 15 mph. Chance of precipitation 40 percent.

SATURDAY NIGHT
Mostly cloudy. A 20 percent chance of showers in the evening. Lows in the mid 60s.

SUNDAY
Mostly cloudy with a 30 percent chance of showers. Highs in the upper 70s.

SUNDAY NIGHT
Partly cloudy in the evening then clearing. Lows in the mid 60s.

MONDAY THROUGH WEDNESDAY
Mostly clear. Highs in the mid 80s. Lows in the mid 60s.

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 
                   JUL 24-28 JUL 26-AUG 1    JUL       JUL-SEP                      
                 -----------  -----------  --------  ---------
   Temperature:      Below        Below      Above      Above                      
 Precipitation:      Below       Normal     Normal     Normal                      

....  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 July 19, 2018 the 200th Day of Year

---------------------------------------------------
SUN
Declination 20.660000
Distance 0.999716 AU
Rise 06:47 EDT Set 21:23 EDT
Transit Meridian 14:05 EDT
Civil Twilight Begins 06:17 EDT Ends 21:53 EDT

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

///////////////////////////
JULY 19TH...HISTORIC WEATHER EVENTS
...1886...
A hurricane from the Gulf of Mexico crossed Florida causing great damage
from Cedar Keys to Jacksonville. (David Ludlum)
...1901...
Beginning this date, Bowling Green, KY's temperature would rise to or 
above 100 degrees for ten consecutive days, a record.
...1960...
Cow Creek and Greenland Ranch in Death Valley CA reported morning lows of
102 degrees. The afternoon high at Greenland Ranch was 124 degrees, and the
high at Cow Creek that afternoon was 126 degrees. The coolest low for the
entire month for both locations was 82 degrees. (The Weather Channel)
...1974...
A severe thunderstorm with winds to 80 mph and up to two inches of rain
washed out four to five foot deep sections of roadway in Lake Havasu City
AZ. Three persons in a station wagon died as it was carried 3000 feet down
a wash by a ten foot wall of water. (The Weather Channel)
...1977...
Thunderstorms produced torrential rains over parts of southwestern
Pennsylvania. Some places receive more than twelve inches in a seven hour
period. The heavy rains cause flash flooding along streams resulting in
widespread severe damage. The cloudburst floods Johnstown with up to ten
feet of water resulting in 76 deaths, countless injuries, and 424 million
dollars damage. (David Ludlum) (The Weather Channel)
...1987...
Fifteen cities in the western and the southeastern U.S. reported record low
temperatures for the date, including Winnemucca NV with a reading of 33
degrees. Flagstaff AZ reported a record low of 34 degrees. Afternoon and
evening thunderstorms produced severe weather in New York State and New
Jersey. High winds and hail two inches in diameter injured two persons and
caused considerable damage to crops in the Pine Island area of central New
York State. (The National Weather Summary) (Storm Data)
...1988...
Thunderstorms in Nebraska produced more than five inches of rain at Red
Cloud, including two inches in fifteen minutes. Torrid temperatures
continued over California, with record highs of 115 degrees at Red Bluff
and 116 degrees at Redding. (The National Weather Summary) (Storm Data)
...1989...
Early morning thunderstorms in the Lower Mississippi Valley produced 5.50
inches of rain south of Alexander AR in just ninety minutes, and flash
flooding which resulted claimed the life of one woman. Thunderstorms in
Indiana produced 4.95 inches of rain in twelve hours east of Muncie. Eight
cities in the southwestern U.S. reported record high temperatures for the
date, including Las Vegas NV with a reading of 115 degrees, and Phoenix AZ
with a high of 116 degrees. The low that night at Phoenix of 93 degrees was
the warmest of record for that location. (The National Weather Summary)
(Storm Data)

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