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 1000 PM CDT THU AUG 16 2018
NORTHEAST ILLINOIS CITY SKY/WX TMP DP RH WIND PRES REMARKS CHICAGO-OHARE MOCLDY 77 68 73 E7 29.93S CHICAGO-MIDWAY MOCLDY 77 70 79 E7 29.93S AURORA FAIR 74 71 91 CALM 29.93S LANSING* FAIR 73 67 81 E5 29.94F JOLIET* FAIR 78 69 75 E5 29.93S WAUKEGAN CLOUDY 74 70 87 CALM 29.95R DUPAGE AIRPORT FAIR 76 68 76 SE5 29.94R KANKAKEE* FAIR 74 71 93 CALM 29.95R WHEELING CLOUDY 76 69 79 E3 29.95R MORRIS* FAIR 73 71 95 CALM 29.92R ROMEOVILLE* FAIR 74 68 81 E6 29.93S NORTHERLY ISL N/A 75 69 81 E7 N/A
Current Agricultural Weather Conditions in Illinois
Based on observations at 1000pm CDT, Thursday August 16, 2018
Across Illinois...temperatures are near 67 degrees north, near 78 degrees central, and near 78 degrees south. Current sky conditions are thunderstorms north, fair central, and fair south. In the north, relative humidity is near 93%, and the dew point is near 65 degrees. In the central part of the state, relative humidity is near 93%, and the dew point is near 76 degrees. The heat index is near 81 degrees central. In the south, relative humidity is near 87%, and the dew point is near 74 degrees. The heat index is near 81 degrees south. The livestock heat stress category is no stress north, no stress central, and no stress south. There is patchy fog north. Winds are from the west at 17 mph with gusts at 26 mph north, where conditions are not favorable for spraying due to strong winds and thunderstorms. Winds are from the south at 7 mph central, where conditions are favorable for spraying. Winds are from the southwest at 3 mph south, where conditions are favorable for spraying. Based on current available observations, the highest temperature is 81 degrees at Pittsfield. The lowest temperature is 66 degrees at Freeport.
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
327 PM CDT Thu Aug 16 2018 /427 PM EDT Thu Aug 16 2018/ DAY ONE Tonight. Weather hazards expectedElevated Thunderstorm Risk...with an associated: Limited damaging wind risk...up to 60 mph. Limited Flooding Risk. DISCUSSION Scattered thunderstorms are expected into the evening and possibly overnight. A few of the stronger storms may produce isolated damaging wind gusts, mainly in north central Illinois. In addition, the slow movement of any showers and storms will lead to the potential for isolated areas of one to two inches of rainfall in a short period of time. DAYS TWO THROUGH SEVEN Friday through Wednesday. Friday Limited Thunderstorm Risk. Sunday Limited Thunderstorm Risk. Monday Elevated Thunderstorm Risk. Tuesday Limited Lakeshore Flood Risk SPOTTER INFORMATION STATEMENT Spotter activation will not be necessary through tonight. GENERAL STORM MOTION OF THE DAY: Moving toward the northeast at 10 to 15 mph.
7-Day Forecast For MCHENRY County, IL
859 PM CDT Thu Aug 16 2018
REST OF TONIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT THROUGH THURSDAY
TUESDAY NIGHT THROUGH THURSDAY
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 AUG 22-26 AUG 24-30 AUG AUG-OCT ----------- ----------- -------- --------- Temperature: Below Above Above Above Precipitation: Below Above Normal Below .... 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
Thursday August 16, 2018 the 228th Day of Year --------------------------------------------------- SUN Declination 13.420000 Distance 0.999717 AU Rise 07:12 EDT Set 20:53 EDT Transit Meridian 14:03 EDT Civil Twilight Begins 06:45 EDT Ends 21:21 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
........................ AUGUST 16TH...HISTORIC WEATHER EVENTS ...1777... The Battle of Bennington, delayed a day by rain, was fought. The rain delayed British reinforcements, and allowed the Vermont Militia to arrive in time, enabling the Americans to win a victory by defeating two enemy forces, one at a time. (David Ludlum) ...1909... A dry spell began in San Bernardino County of southern California that lasted until the 6th of May in 1912, a stretch of 994 days! Another dry spell, lasting 767 days, then began in October of 1912. (The Weather Channel) ...1916... Altapass NC was deluged with 22.22 inches of rain in 24 hours to establish a state record. (The Weather Channel) ...1987... Afternoon and evening thunderstorms developing along a cold front produced severe weather from Oklahoma to Wisconsin and Lower Michigan. Thunderstorms in central Illinois produced wind gusts to 80 mph at Springfield which toppled two large beer tents at the state fair injuring 58 persons. Thunderstorms also drenched Chicago IL with 2.90 inches of rain, making August 1987 their wettest month of record. (The National Weather Summary) (Storm Data) ...1988... Thunderstorms developing along a slow moving cold front produced severe weather from North Dakota to Lower Michigan during the day. Nine tornadoes were sighted in North Dakota, and thunderstorms also produced hail three inches in diameter at Lakota ND, and wind gusts to 83 mph at Marais MI. Thirty-seven cities in the northeastern U.S. reported record high temperatures for the date, including Rockford IL with a reading of 104 degrees. (The National Weather Summary) (Storm Data) ...1989... Late afternoon and evening thunderstorms in the Central High Plains Region produced golf ball size hail at La Junta CO, Intercanyon CO, and Custer SD. Afternoon thunderstorms over South Texas drenched Brownsville with 2.60 inches of rain. Fair skies allowed viewing of the late evening full lunar eclipse from the Great Lakes Region to the Northern and Central Plains Region, and across much of the western third of the country. (The National Weather Summary) (Storm Data)
Ag Weather Center, Department of Biosystems & Agricultural Engineering, University of Kentucky