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Regional Hourly Observations For MCHENRY County
Issued at 600 AM CST WED DEC 13 2017
NORTHEAST ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS CHICAGO-OHARE CLOUDY 25 12 58 S12 29.68F WCI 14 6HR MIN TEMP: 22; 6HR MAX TEMP: 25; CHICAGO-MIDWAY CLOUDY 26 11 52 S12 29.70F WCI 16 6HR MIN TEMP: 22; 6HR MAX TEMP: 26; AURORA CLOUDY 25 14 63 SE13 29.66F WCI 14 6HR MIN TEMP: 20; 6HR MAX TEMP: 25; LANSING* CLOUDY 25 13 60 S14 29.74F WCI 13 JOLIET* CLOUDY 28 12 52 S8 29.70F WCI 20 WAUKEGAN CLOUDY 24 11 57 S14 29.65F WCI 12 6HR MIN TEMP: 19; 6HR MAX TEMP: 24; DUPAGE AIRPORT CLOUDY 25 13 60 S14 29.66F WCI 13 6HR MIN TEMP: 20; 6HR MAX TEMP: 25; KANKAKEE* CLOUDY 26 10 49 S9 29.74F WCI 17 WHEELING CLOUDY 25 13 60 S12 29.69F WCI 14 6HR MIN TEMP: 22; 6HR MAX TEMP: 25; MORRIS* CLOUDY 26 11 52 S13 29.68F WCI 15 ROMEOVILLE* CLOUDY 25 12 58 S10 29.69F WCI 15 NORTHERLY ISL N/A 24 10 55 S8 N/A WCI 15
Current Agricultural Weather Conditions in Illinois
Based on observations at 600am CST, Wednesday December 13, 2017
Across Illinois...temperatures are near 25 degrees north, near 27 degrees central, and near 26 degrees south. Current sky conditions are cloudy north, cloudy central, and partly cloudy south. In the north, relative humidity is near 68%, and the dew point is near 16 degrees. In the central part of the state, relative humidity is near 53%, and the dew point is near 12 degrees. In the south, relative humidity is near 65%, and the dew point is near 16 degrees. Winds are from the south at 18 mph north, where conditions are not favorable for spraying due to strong winds. The wind chill is near 11 degrees north. Winds are from the south at 12 mph central, where conditions are favorable for spraying. The wind chill is near 17 degrees central. Winds are from the southwest at 9 mph south, where conditions are favorable for spraying. The wind chill is near 17 degrees south. 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 Quincy and Moline. The lowest temperature is 21 degrees at Robinson and Lawrenceville.
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 MCHENRY County,IL
409 AM CST Wed Dec 13 2017 /509 AM EST Wed Dec 13 2017/ DAY ONE Today and Tonight. WEATHER HAZARDS EXPECTED: Limited Non Thunderstorm Wind Risk. Elevated Snow Risk. DISCUSSION: Another clipper system will track through the region today, bringing the potential for light precipitation. With the surface low passing across far northeast Illinois this afternoon, the best chance of accumulating snow will generally be north of the Wisconsin border. Light accumulations, generally less than an inch, will be possible mainly across the northern Suburbs of Chicago. Colder and blustery weather will arrive tonight as the low pulls away to the east. Gusty northerly winds to 35 mph may turn northeast for a time, which will likely produce some lake effect snow showers across far northeast Illinois this evening, which will move east into Indiana overnight. Minor accumulations will be possible, perhaps an inch or so in Illinois, and 2 to 4 inches in Indiana. Higher amounts are not out of the question if the lake snow band remains over one location for a period of time. DAYS TWO THROUGH SEVEN Thursday through Tuesday. ThursdayElevated Snow Risk. Friday Limited Snow Risk. DISCUSSION: Lake effect snow will linger over northwest Indiana Thursday morning. Confidence is low in exactly where the band will be, but the band will shift east through the morning. The snow will likely impact the Thursday morning commute in northwest Indiana. SPOTTER INFORMATION STATEMENT Spotter activation will not be necessary through tonight.
7-Day Forecast For MCHENRY County, IL
359 AM CST Wed Dec 13 2017
TODAY TONIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT THROUGH TUESDAY
SUNDAY NIGHT THROUGH TUESDAY
12-48 Hr Surface,
12-48 Hr ETA 500mb/Sfc,
Day 1 Precip,
Day 2 Precip,
Days 1-5 Precip
Medium & Long Range Outlook For Illinois
ILLINOIS --------------------------------------------- 6 TO 10 DAY 8 TO 14 DAY 30 DAY 90 DAY DEC 18-22 DEC 20-26 DEC DEC-FEB ----------- ----------- -------- --------- Temperature: Above Normal Normal Normal Precipitation: Below Normal Normal Above .... Medium and long range outlooks provided by NCEP/K. Thomas Priddy5 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
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