Alert archive / Illinois / Heat Advisories in 2011
Heat Advisory 4, NWS Lincoln, IL
NWS Lincoln, IL issued this heat advisory at Jul 27, 2011, 12:12 PM CDT for 35 counties in Illinois. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Jul 27, 2011, 12:12 PM CDT (17:12 UTC)
- Expired
- Jul 27, 2011, 7:00 PM CDT
- In force
- 7 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 17:16 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 12:00Z, 5.2 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
- 1719 J/kg
- Mixed-layer CIN
- -108 J/kg
- Mixed-layer LCL
- 1079 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 20 m²/s²
- 0-3 km storm-relative helicity
- 128 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this heat advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Lincoln, IL wrote its last area forecast discussion before this heat advisory went out at Jul 26, 6:05 PM CDT, 18 hours 7 minutes earlier.
Area forecast discussion, Jul 26, 6:05 PM CDT, 18 hours 7 minutes before
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</html>Hazardous weather outlook, Jul 26, 4:06 PM CDT, 20 hours 6 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE LINCOLN IL 406 PM CDT TUE JUL 26 2011 ILZ027>031-036>038-040>043-047-048-271100- CASS-DE WITT-FULTON-KNOX-LOGAN-MARSHALL-MASON-MCLEAN-MENARD- PEORIA-SCHUYLER-STARK-TAZEWELL-WOODFORD- 406 PM CDT TUE JUL 26 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL ILLINOIS. .DAY ONE...TONIGHT ISOLATED THUNDERSTORMS WILL OCCUR UNTIL SUNSET. THE SEVERE WEATHER THREAT IS LOW BUT GUSTY WINDS...HEAVY DOWNPOURS... FREQUENT LIGHTNING AND SMALL HAIL ARE POSSIBLE. HEAT INDEX VALUES OF 100 TO 105 DEGREES WILL OCCUR THROUGH EARLY EVENING...IN AREAS WHERE STORMS DO NOT OCCUR. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY HEAT INDEX VALUES OF 100 TO 105 DEGREES ARE LIKELY WEDNESDAY AND THURSDAY AFTERNOONS. THERE IS A RISK OF THUNDERSTORMS THURSDAY THROUGH FRIDAY...AS A COLD FRONT SLOWLY MOVES INTO THE AREA. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED THROUGH TONIGHT. ILZ044>046-049>057-061>063-066>068-071>073-271100- CHAMPAIGN-CHRISTIAN-CLARK-CLAY-COLES-CRAWFORD-CUMBERLAND-DOUGLAS- EDGAR-EFFINGHAM-JASPER-LAWRENCE-MACON-MORGAN-MOULTRIE-PIATT- RICHLAND-SANGAMON-SCOTT-SHELBY-VERMILION- 406 PM CDT TUE JUL 26 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL ILLINOIS...EAST CENTRAL ILLINOIS AND SOUTHEAST ILLINOIS. .DAY ONE...TONIGHT ISOLATED THUNDERSTORMS WILL OCCUR THROUGH SUNSET. THE SEVERE WEATHER THREAT IS LOW...THOUGH HEAVY DOWNPOURS...FREQUENT LIGHTNING...GUSTY WINDS AND SMALL HAIL ARE POSSIBLE. HEAT INDEX VALUES OF 100 TO 105 DEGREES WILL OCCUR THROUGH EARLY EVENING... OUTSIDE OF THE STORMS. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY HEAT INDEX VALUES OF 100 TO 105 DEGREES ARE LIKELY EACH AFTERNOON...FROM WEDNESDAY THROUGH FRIDAY. THERE IS A RISK OF THUNDERSTORMS FRIDAY THROUGH SATURDAY...AS A COLD FRONT SLOWLY MOVES INTO THE AREA. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED THROUGH TONIGHT. GEELHART
The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 2:50 PM CDT | Heat Advisory | ILX | Cass, Champaign, Christian, Clark, Clay, Coles and 29 more | 28 hr |
Nearby
Heat Advisories in Illinois, 2011Every heat advisory in 2011
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.