A joint service of the UK Ag Weather Center and the National Weather Service.
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Regional Hourly Observations For MCHENRY County
Issued at 1200 PM CST SUN FEB 18 2018
NORTHEAST ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS CHICAGO-OHARE PTSUNNY 30 24 78 S15 30.21F WCI 19 6HR MIN TEMP: 12; 6HR MAX TEMP: 30; CHICAGO-MIDWAY PTSUNNY 31 25 78 S15G22 30.23F WCI 20 6HR MIN TEMP: 20; 6HR MAX TEMP: 31; AURORA FAIR 28 24 85 SE14 30.21F FOG WCI 17 6HR MIN TEMP: 16; 6HR MAX TEMP: 28; LANSING* FAIR 29 28 94 S14 30.26F WCI 18 JOLIET* FAIR 32 28 85 S10 30.24F WCI 24 WAUKEGAN FAIR 33 24 69 S18 30.19F WCI 22 6HR MIN TEMP: 16; 6HR MAX TEMP: 34; DUPAGE AIRPORT FAIR 28 26 92 S12 30.21F FOG WCI 18 6HR MIN TEMP: 13; 6HR MAX TEMP: 28; 6HR PCP: TRACE; KANKAKEE* FAIR 33 28 80 S12 30.26F WCI 25 WHEELING FAIR 32 26 78 S14 30.23F WCI 22 6HR MIN TEMP: 15; 6HR MAX TEMP: 32; MORRIS* PTSUNNY 29 28 96 S13 30.22F WCI 19 ROMEOVILLE* FAIR 29 26 89 S14 30.23F WCI 18 NORTHERLY ISL N/A 31 24 76 S13 N/A WCI 21
Current Agricultural Weather Conditions in Illinois
Based on observations at 1200pm CST, Sunday February 18, 2018
Across Illinois...temperatures are near 28 degrees north and near 46 degrees central. Current sky conditions are cloudy north and fair central. In the north, relative humidity is near 86%, and the dew point is near 25 degrees. In the central part of the state, relative humidity is near 62%, and the dew point is near 34 degrees. There is patchy fog north. Winds are from the south at 21 mph north, where conditions are not favorable for spraying due to strong winds. The wind chill is near 15 degrees north. Winds are from the south at 21 mph with gusts at 26 mph central, where conditions are not favorable for spraying due to strong winds. Winds are unavailable south. The livestock cold stress index is in the no stress category north, no stress category central, and unavailable category south. Based on current available observations, the highest temperature is 46 degrees at Springfield, Decatur, and Alton. The lowest temperature is 28 degrees at Rockford.
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
530 AM CST Sun Feb 18 2018 /630 AM EST Sun Feb 18 2018/ DAY ONE Today and Tonight. WEATHER HAZARDS EXPECTED: Limited Thunderstorm Risk late tonight south of I-80. Significant Fog Risk this morning. DISCUSSION: Dense fog is in place across portions of northern Illinois this morning. Fog will reduce visibility to a quarter mile or less and may result in icy conditions in some locations. DAYS TWO THROUGH SEVEN Monday through Saturday. MondayElevated Flooding Risk. Limited Thunderstorm Risk. Limited Non Thunderstorm Wind Risk. Tuesday Elevated Flooding Risk. Limited Thunderstorm Risk. Limited Non Thunderstorm Wind Risk. Elevated Ice Accumulation Risk late. Limited Snow and Sleet Risk late. DISCUSSION: Heavy rainfall is expected across the region Monday through Tuesday. Several inches of rain may fall in some locations. The combination of heavy rain, snowmelt, and frozen grounds will result in rapid runoff and rises on area streams and rivers. SPOTTER INFORMATION STATEMENT Spotter activation will not be necessary through tonight. GENERAL STORM MOTION OF THE DAY: Moving northeast at 50-60 MPH
7-Day Forecast For MCHENRY County, IL
1007 AM CST Sun Feb 18 2018
REST OF TODAY TONIGHT WASHINGTONS BIRTHDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY
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 FEB 23-27 FEB 25-MAR 3 FEB FEB-APR ----------- ----------- -------- --------- Temperature: Above Above Normal Below Precipitation: Above Above Above 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
Sunday February 18, 2018 the 49th Day of Year --------------------------------------------------- SUN Declination -11.270000 Distance 0.999723 AU Rise 07:47 EST Set 18:39 EST Transit Meridian 13:12 EST Civil Twilight Begins 07:20 EST Ends 19:06 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
FEBRUARY 18TH HISTORIC WEATHER EVENTS ...1899... While much of the central and eastern U.S. was recovering from the most severe cold wave of modern history, the temperature at San Francisco soared to 80 degrees to establish a record for month of February. (David Ludlum) ...1959... Some of the higher elevations of California were in the midst of a five day storm which produced 189 inches of snow, a single storm record for North America. (13th-19th) (David Ludlum) ...1987... A small but intense low pressure system combined with northerly upslope winds to produce eight inches of snow in five hours at Meeteetsie WY, located southeast of Cody. (The National Weather Summary) (Storm Data) ...1988... Thunderstorms soaked the Central Gulf Coast Region with heavy rain. Totals in southern Louisiana ranged up to 8.50 inches near the town of Ridge, with 6.55 inches at Plaguemine. Thunderstorms in northern Florida drenched Apalachicola with 5.41 inches of rain in 24 hours, and produced wind gusts to 75 mph at Mayo. (The National Weather Summary) (Storm Data) ...1989... Low pressure off the coast of North Carolina brought freezing rain and heavy snow to Virginia and the Carolinas. Snowfall totals in Virginia ranged up to 18 inches at Franklin. Freezing rain reached a thickness of two inches around Charlotte NC. (The National Weather Summary) (Storm Data) ...1990... An intense but slow moving Pacific storm worked its way across Utah over a two day period. The storm blanketed the valleys with 4 to 12 inches of snow, and produced up to 42 inches of snow in the mountains. Heavy snow also fell across northern Arizona. Williams received 22 inches of snow, and 12 inches was reported along the south rim of the Grand Canyon. (The National Weather Summary) (Storm Data)
Ag Weather Center, Department of Biosystems & Agricultural Engineering, University of Kentucky