Alert archive / Illinois / Heat Advisories in 2021
Heat Advisory 2, NWS Lincoln, IL
NWS Lincoln, IL issued this heat advisory at Jul 27, 2021, 2:06 AM CDT for 35 counties in Illinois. It took effect at Jul 28, 2021, 1:00 PM CDT. It was in force for 31 hr.
The area
The counties it named.
The facts
- Issued
- Jul 27, 2021, 2:06 AM CDT (07:06 UTC)
- In effect from
- Jul 28, 2021, 1:00 PM CDT
- Expired
- Jul 29, 2021, 8:00 PM CDT
- In force
- 31 hr
- Issued by
- NWS Lincoln, IL
All 35 counties
Cass County, IL, Champaign County, IL, Christian County, IL, Clark County, IL, Clay County, IL, Coles County, IL, Crawford County, IL, Cumberland County, IL, DeWitt County, IL, Douglas County, IL, Edgar County, IL, Effingham County, IL, Fulton County, IL, Jasper County, IL, Knox County, IL, Lawrence County, IL, Logan County, IL, Macon County, IL, Marshall County, IL, Mason County, IL, McLean County, IL, Menard County, IL, Morgan County, IL, Moultrie County, IL, Peoria County, IL, Piatt County, IL, Richland County, IL, Sangamon County, IL, Schuyler County, IL, Scott County, IL, Shelby County, IL, Stark County, IL, Tazewell County, IL, Vermilion County, IL, Woodford County, IL
The radar
The Lincoln radar (KILX), 42 km from the middle of the area, began a volume at 07:11 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 7.1 hours before the alert went out and 46 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1737 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- -17 m²/s²
- 0-3 km storm-relative helicity
- -21 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.3
The text
As transmitted.
539 WWUS73 KILX 270706 NPWILX URGENT - WEATHER MESSAGE National Weather Service Lincoln IL 206 AM CDT Tue Jul 27 2021 ILZ027>031-036-037-040-041-047-049-050-272100- /O.NEW.KILX.HT.Y.0002.210728T1800Z-210729T0300Z/ Knox-Stark-Peoria-Marshall-Woodford-Fulton-Tazewell-Schuyler- Mason-Cass-Scott-Morgan- Including the cities of Galesburg, Toulon, Peoria, Lacon, Eureka, Canton, Pekin, Rushville, Havana, Beardstown, Winchester, and Jacksonville 206 AM CDT Tue Jul 27 2021 ...HEAT ADVISORY IN EFFECT FROM 1 PM TO 10 PM CDT WEDNESDAY... * WHAT...Heat index values near 105 degrees. * WHERE...Portions of western and central Illinois. * WHEN...From 1 PM CDT until 10 PM CDT Wednesday evening. * IMPACTS...Hot temperatures and high humidity will threaten heat- related illness for people and pets that experience prolonged exposure to these dangerous outdoor conditions. * ADDITIONAL DETAILS...Similar heat index values are forecast for Thursday afternoon and these conditions will cover a much larger portion of Illinois. A separate heat-related headline will be issued at a later time. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Heat Advisory means that a period of hot temperatures is expected. The combination of hot temperatures and high humidity will combine to create a situation in which heat illnesses are possible. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions, if you work or spend time outside. When possible, reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear light weight and loose fitting clothing when possible and drink plenty of water. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency, call 9 1 1. && $$
9 follow-up statements
118 WWUS73 KILX 271655 NPWILX URGENT - WEATHER MESSAGE National Weather Service Lincoln IL 1155 AM CDT Tue Jul 27 2021 ILZ038-042>044-048-051>054-061-280100- /O.EXB.KILX.HT.Y.0002.210728T1800Z-210730T0100Z/ McLean-Logan-De Witt-Piatt-Menard-Sangamon-Christian-Macon- Moultrie-Shelby- Including the cities of Bloomington, Normal, Lincoln, Clinton, Monticello, Petersburg, Springfield, Taylorville, Decatur, Sullivan, and Shelbyville 1155 AM CDT Tue Jul 27 2021 ...HEAT ADVISORY IN EFFECT FROM 1 PM WEDNESDAY TO 8 PM CDT THURSDAY... * WHAT...Heat index values 100 to 105 expected Wednesday afternoon and heat index values 100 to 107 expected Thursday afternoon. * WHERE...McLean, Logan, De Witt, Piatt, Menard, Sangamon, Christian, Macon, Moultrie and Shelby Counties. * WHEN...From 1 PM Wednesday to 8 PM CDT Thursday. * IMPACTS...Hot temperatures and high humidity will threaten heat-related illness for people and pets that experience prolonged exposure to these dangerous outdoor conditions. * ADDITIONAL DETAILS...Heat index will remain quite warm Wednesday night, offering little relief, before similar to hotter heat index develops for Thursday afternoon. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ ILZ027>031-036-037-040-041-047-049-050-280100- /O.EXT.KILX.HT.Y.0002.210728T1800Z-210730T0100Z/ Knox-Stark-Peoria-Marshall-Woodford-Fulton-Tazewell-Schuyler- Mason-Cass-Scott-Morgan- Including the cities of Galesburg, Toulon, Peoria, Lacon, Eureka, Canton, Pekin, Rushville, Havana, Beardstown, Winchester, and Jacksonville 1155 AM CDT Tue Jul 27 2021 ...HEAT ADVISORY NOW IN EFFECT FROM 1 PM WEDNESDAY TO 8 PM CDT THURSDAY... * WHAT...Heat index values 100 to 105 expected Wednesday afternoon and heat index values 100 to 107 expected Thursday afternoon. * WHERE...Portions of western and central Illinois. * WHEN...From 1 PM Wednesday to 8 PM CDT Thursday. * IMPACTS...Hot temperatures and high humidity will threaten heat- related illness for people and pets that experience prolonged exposure to these dangerous outdoor conditions. * ADDITIONAL DETAILS...Hot temperatures and high humidity will threaten heat-related illness for people and pets that experience prolonged exposure to these dangerous outdoor conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$
272 WWUS73 KILX 272023 NPWILX URGENT - WEATHER MESSAGE National Weather Service Lincoln IL 323 PM CDT Tue Jul 27 2021 ILZ027>031-036>038-040>044-047>054-061-280900- /O.CON.KILX.HT.Y.0002.210728T1800Z-210730T0100Z/ Knox-Stark-Peoria-Marshall-Woodford-Fulton-Tazewell-McLean- Schuyler-Mason-Logan-De Witt-Piatt-Cass-Menard-Scott-Morgan- Sangamon-Christian-Macon-Moultrie-Shelby- Including the cities of Galesburg, Toulon, Peoria, Lacon, Eureka, Canton, Pekin, Bloomington, Normal, Rushville, Havana, Lincoln, Clinton, Monticello, Beardstown, Petersburg, Winchester, Jacksonville, Springfield, Taylorville, Decatur, Sullivan, and Shelbyville 323 PM CDT Tue Jul 27 2021 ...HEAT ADVISORY REMAINS IN EFFECT FROM 1 PM WEDNESDAY TO 8 PM CDT THURSDAY... * WHAT...Heat index values 100 to 106 expected Wednesday afternoon and heat index values 102 to 110 expected Thursday afternoon. * WHERE...Portions of western and central Illinois. * WHEN...From 1 PM Wednesday to 8 PM CDT Thursday. * IMPACTS...Hot temperatures and high humidity will threaten heat-related illness for people and pets that experience prolonged exposure to these dangerous outdoor conditions. * ADDITIONAL DETAILS...Heat index will remain quite warm Wednesday night, offering little relief, before similar or higher heat index develops for Thursday afternoon. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$
916 WWUS73 KILX 280837 NPWILX URGENT - WEATHER MESSAGE National Weather Service Lincoln IL 337 AM CDT Wed Jul 28 2021 ILZ027>031-036>038-040>044-047>054-061-282100- /O.CON.KILX.HT.Y.0002.210728T1800Z-210730T0100Z/ Knox-Stark-Peoria-Marshall-Woodford-Fulton-Tazewell-McLean- Schuyler-Mason-Logan-De Witt-Piatt-Cass-Menard-Scott-Morgan- Sangamon-Christian-Macon-Moultrie-Shelby- Including the cities of Galesburg, Toulon, Peoria, Lacon, Eureka, Canton, Pekin, Bloomington, Normal, Rushville, Havana, Lincoln, Clinton, Monticello, Beardstown, Petersburg, Winchester, Jacksonville, Springfield, Taylorville, Decatur, Sullivan, and Shelbyville 337 AM CDT Wed Jul 28 2021 ...HEAT ADVISORY REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM CDT THURSDAY... * WHAT...Heat index values 100F to 106F expected this afternoon and heat index values 102F to 110F expected Thursday afternoon. * WHERE...Portions of western and central Illinois. * WHEN...From 1 PM Today to 8 PM CDT Thursday. * IMPACTS...Hot temperatures and high humidity will threaten heat-related illness for people and pets that experience prolonged exposure to these dangerous outdoor conditions. * ADDITIONAL DETAILS...Heat index will remain quite warm Wednesday night, offering little relief, before similar or higher heat index develops for Thursday afternoon. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$
826 WWUS73 KILX 281956 NPWILX URGENT - WEATHER MESSAGE National Weather Service Lincoln IL 256 PM CDT Wed Jul 28 2021 ILZ045-046-055>057-062-063-066>068-071>073-290900- /O.EXB.KILX.HT.Y.0002.210729T1500Z-210730T0100Z/ Champaign-Vermilion-Douglas-Coles-Edgar-Cumberland-Clark- Effingham-Jasper-Crawford-Clay-Richland-Lawrence- Including the cities of Champaign, Urbana, Danville, Tuscola, Charleston, Mattoon, Paris, Greenup, Marshall, Effingham, Newton, Robinson, Flora, Olney, and Lawrenceville 256 PM CDT Wed Jul 28 2021 ...HEAT ADVISORY IN EFFECT FROM 10 AM TO 8 PM CDT THURSDAY... * WHAT...Heat index values 105F to 110F expected Thursday afternoon. * WHERE...Portions of east central and southeast Illinois. * WHEN...From 10 AM to 8 PM CDT Thursday. * IMPACTS...Hot temperatures and high humidity will threaten heat- related illness for people and pets that experience prolonged exposure to these dangerous outdoor conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. && $$ ILZ027>031-036>038-040>044-047>054-061-290900- /O.CON.KILX.HT.Y.0002.000000T0000Z-210730T0100Z/ Knox-Stark-Peoria-Marshall-Woodford-Fulton-Tazewell-McLean- Schuyler-Mason-Logan-De Witt-Piatt-Cass-Menard-Scott-Morgan- Sangamon-Christian-Macon-Moultrie-Shelby- Including the cities of Galesburg, Toulon, Peoria, Lacon, Eureka, Canton, Pekin, Bloomington, Normal, Rushville, Havana, Lincoln, Clinton, Monticello, Beardstown, Petersburg, Winchester, Jacksonville, Springfield, Taylorville, Decatur, Sullivan, and Shelbyville 256 PM CDT Wed Jul 28 2021 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THURSDAY... * WHAT...Heat index values 100F to 106F expected this afternoon and heat index values 102F to 110F expected Thursday afternoon. * WHERE...Portions of western and central Illinois. * WHEN...Through 8 PM CDT Thursday. * IMPACTS...Hot temperatures and high humidity will threaten heat- related illness for people and pets that experience prolonged exposure to these dangerous outdoor conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. && $$ Erwin
566 WWUS73 KILX 282346 NPWILX URGENT - WEATHER MESSAGE National Weather Service Lincoln IL 646 PM CDT Wed Jul 28 2021 ILZ027>031-036>038-040>044-047>054-061-290900- /O.CON.KILX.HT.Y.0002.000000T0000Z-210730T0100Z/ Knox-Stark-Peoria-Marshall-Woodford-Fulton-Tazewell-McLean- Schuyler-Mason-Logan-De Witt-Piatt-Cass-Menard-Scott-Morgan- Sangamon-Christian-Macon-Moultrie-Shelby- Including the cities of Galesburg, Toulon, Peoria, Lacon, Eureka, Canton, Pekin, Bloomington, Normal, Rushville, Havana, Lincoln, Clinton, Monticello, Beardstown, Petersburg, Winchester, Jacksonville, Springfield, Taylorville, Decatur, Sullivan, and Shelbyville 646 PM CDT Wed Jul 28 2021 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THURSDAY... * WHAT...Heat index values of 105 to 110 degrees. * WHERE...Portions of central, east central and west central Illinois. * WHEN...The heat index should rise above 100 degrees late Thursday morning, and remain in triple digits much of the afternoon. Areas north of I-74 may see some cooling take place late afternoon. * IMPACTS...Heat related illness may occur quickly for people and pets with prolonged outdoor exposure. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ ILZ045-046-055>057-062-063-066>068-071>073-290900- /O.CON.KILX.HT.Y.0002.210729T1500Z-210730T0100Z/ Champaign-Vermilion-Douglas-Coles-Edgar-Cumberland-Clark- Effingham-Jasper-Crawford-Clay-Richland-Lawrence- Including the cities of Champaign, Urbana, Danville, Tuscola, Charleston, Mattoon, Paris, Greenup, Marshall, Effingham, Newton, Robinson, Flora, Olney, and Lawrenceville 646 PM CDT Wed Jul 28 2021 ...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM TO 8 PM CDT THURSDAY... * WHAT...Heat index values pf 105 to 110 degrees. * WHERE...Portions of east central and southeast Illinois. * WHEN...The heat index should rise above 100 degrees late Thursday morning, and remain in triple digits much of the afternoon. * IMPACTS...Heat related illness may occur quickly for people and pets with prolonged outdoor exposure. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ Geelhart
309 WWUS73 KILX 290857 NPWILX URGENT - WEATHER MESSAGE National Weather Service Lincoln IL 357 AM CDT Thu Jul 29 2021 ILZ027>031-036>038-040>044-047>054-061-292100- /O.CON.KILX.HT.Y.0002.000000T0000Z-210730T0100Z/ Knox-Stark-Peoria-Marshall-Woodford-Fulton-Tazewell-McLean- Schuyler-Mason-Logan-De Witt-Piatt-Cass-Menard-Scott-Morgan- Sangamon-Christian-Macon-Moultrie-Shelby- Including the cities of Galesburg, Toulon, Peoria, Lacon, Eureka, Canton, Pekin, Bloomington, Normal, Rushville, Havana, Lincoln, Clinton, Monticello, Beardstown, Petersburg, Winchester, Jacksonville, Springfield, Taylorville, Decatur, Sullivan, and Shelbyville 357 AM CDT Thu Jul 29 2021 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING... * WHAT...Heat index values of 105 to 110 degrees. * WHERE...Portions of central, east central and west central Illinois. * WHEN...The heat index should rise above 100 degrees late Thursday morning, and remain in triple digits much of the afternoon. Areas north of I-74 may see some cooling take place late afternoon. * IMPACTS...Heat related illness may occur quickly for people and pets with prolonged outdoor exposure. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ ILZ045-046-055>057-062-063-066>068-071>073-292100- /O.CON.KILX.HT.Y.0002.210729T1500Z-210730T0100Z/ Champaign-Vermilion-Douglas-Coles-Edgar-Cumberland-Clark- Effingham-Jasper-Crawford-Clay-Richland-Lawrence- Including the cities of Champaign, Urbana, Danville, Tuscola, Charleston, Mattoon, Paris, Greenup, Marshall, Effingham, Newton, Robinson, Flora, Olney, and Lawrenceville 357 AM CDT Thu Jul 29 2021 ...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 8 PM CDT THIS EVENING... * WHAT...Heat index values pf 105 to 110 degrees. * WHERE...Portions of east central and southeast Illinois. * WHEN...The heat index should rise above 100 degrees late Thursday morning, and remain in triple digits much of the afternoon. * IMPACTS...Heat related illness may occur quickly for people and pets with prolonged outdoor exposure. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$
814 WWUS73 KILX 291954 NPWILX URGENT - WEATHER MESSAGE National Weather Service Lincoln IL 254 PM CDT Thu Jul 29 2021 ILZ027>031-036>038-040>057-061>063-066>068-071>073-300100- /O.CON.KILX.HT.Y.0002.000000T0000Z-210730T0100Z/ Knox-Stark-Peoria-Marshall-Woodford-Fulton-Tazewell-McLean- Schuyler-Mason-Logan-De Witt-Piatt-Champaign-Vermilion-Cass- Menard-Scott-Morgan-Sangamon-Christian-Macon-Moultrie-Douglas- Coles-Edgar-Shelby-Cumberland-Clark-Effingham-Jasper-Crawford- Clay-Richland-Lawrence- Including the cities of Galesburg, Toulon, Peoria, Lacon, Eureka, Canton, Pekin, Bloomington, Normal, Rushville, Havana, Lincoln, Clinton, Monticello, Champaign, Urbana, Danville, Beardstown, Petersburg, Winchester, Jacksonville, Springfield, Taylorville, Decatur, Sullivan, Tuscola, Charleston, Mattoon, Paris, Shelbyville, Greenup, Marshall, Effingham, Newton, Robinson, Flora, Olney, and Lawrenceville 254 PM CDT Thu Jul 29 2021 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING... * WHAT...Heat index values of 105 degrees. * WHERE...Portions of central, east central and west central Illinois. * WHEN...The heat index could still rise above 100 degrees this afternoon. Areas north of I-74 may see some cooling take place late afternoon. * IMPACTS...Heat related illness may occur quickly for people and pets with prolonged outdoor exposure. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ Auten
095 WWUS73 KILX 292221 NPWILX URGENT - WEATHER MESSAGE National Weather Service Lincoln IL 521 PM CDT Thu Jul 29 2021 ILZ027>031-036>038-041>046-053-292330- /O.CAN.KILX.HT.Y.0002.000000T0000Z-210730T0100Z/ Knox-Stark-Peoria-Marshall-Woodford-Fulton-Tazewell-McLean-Mason- Logan-De Witt-Piatt-Champaign-Vermilion-Macon- Including the cities of Galesburg, Toulon, Peoria, Lacon, Eureka, Canton, Pekin, Bloomington, Normal, Havana, Lincoln, Clinton, Monticello, Champaign, Urbana, Danville, and Decatur 521 PM CDT Thu Jul 29 2021 ...HEAT ADVISORY IS CANCELLED... Extensive cloud cover from earlier showers and thunderstorms will result in the heat index staying below 100 degrees into early evening. $$ ILZ040-047>052-054>057-061>063-066>068-071>073-300100- /O.CON.KILX.HT.Y.0002.000000T0000Z-210730T0100Z/ Schuyler-Cass-Menard-Scott-Morgan-Sangamon-Christian-Moultrie- Douglas-Coles-Edgar-Shelby-Cumberland-Clark-Effingham-Jasper- Crawford-Clay-Richland-Lawrence- Including the cities of Rushville, Beardstown, Petersburg, Winchester, Jacksonville, Springfield, Taylorville, Sullivan, Tuscola, Charleston, Mattoon, Paris, Shelbyville, Greenup, Marshall, Effingham, Newton, Robinson, Flora, Olney, and Lawrenceville 521 PM CDT Thu Jul 29 2021 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING... * WHAT...Heat index around 105 degrees, with locally higher values near 110 degrees around Jacksonville and Winchester. * WHERE...Portions of central, east central, and southeast Illinois, generally south of a Jacksonville to Mattoon line. * WHEN...Early this evening, with the heat index dropping below 100 degrees before sunset. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses to occur. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. && $$ Geelhart
123 WWUS73 KILX 300101 NPWILX URGENT - WEATHER MESSAGE National Weather Service Lincoln IL 801 PM CDT Thu Jul 29 2021 ILZ040-047>052-054>057-061>063-066>068-071>073-300215- /O.EXP.KILX.HT.Y.0002.000000T0000Z-210730T0100Z/ Schuyler-Cass-Menard-Scott-Morgan-Sangamon-Christian-Moultrie- Douglas-Coles-Edgar-Shelby-Cumberland-Clark-Effingham-Jasper- Crawford-Clay-Richland-Lawrence- Including the cities of Rushville, Beardstown, Petersburg, Winchester, Jacksonville, Springfield, Taylorville, Sullivan, Tuscola, Charleston, Mattoon, Paris, Shelbyville, Greenup, Marshall, Effingham, Newton, Robinson, Flora, Olney, and Lawrenceville 801 PM CDT Thu Jul 29 2021 ...HEAT ADVISORY HAS EXPIRED... While the heat index remains around 100 degrees at sunset, it will continue to decrease as temperatures go down. Drier air is expected to move in after midnight. $$ Geelhart
Nearby
Heat Advisories in Illinois, 2021Every heat advisory in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.