Alert archive / Illinois / Heat Advisories in 2009
Heat Advisory 4, NWS Lincoln, IL
NWS Lincoln, IL issued this heat advisory at Jun 26, 2009, 1:52 AM CDT for 15 counties in Illinois. It took effect at Jun 26, 2009, 1:00 PM CDT. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- Jun 26, 2009, 1:52 AM CDT (06:52 UTC)
- In effect from
- Jun 26, 2009, 1:00 PM CDT
- Expired
- Jun 26, 2009, 6:45 PM CDT
- In force
- 6 hr
- Issued by
- NWS Lincoln, IL
Counties Cass County, IL, Christian County, IL, Clay County, IL, Crawford County, IL, Cumberland County, IL, Effingham County, IL, Jasper County, IL, Lawrence County, IL, Menard County, IL, Morgan County, IL, Richland County, IL, Sangamon County, IL, Schuyler County, IL, Scott County, IL, Shelby County, IL
The radar
The Lincoln radar (KILX), 88 km from the middle of the area, began a volume at 06:52 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, 6.9 hours before the alert went out and 94 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
- 2029 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 1691 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 16 m²/s²
- 0-3 km storm-relative helicity
- 55 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.5
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 Jun 25, 11:36 PM CDT, 2 hours 16 minutes earlier.
Area forecast discussion, Jun 25, 11:36 PM CDT, 2 hours 16 minutes before
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</html>Hazardous weather outlook, Jun 25, 3:17 PM CDT, 10 hours 35 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LINCOLN IL 317 PM CDT THU JUN 25 2009 ILZ027>031-036>038-040>043-047>051-261100- CASS-DE WITT-FULTON-KNOX-LOGAN-MARSHALL-MASON-MCLEAN-MENARD- MORGAN-PEORIA-SANGAMON-SCHUYLER-SCOTT-STARK-TAZEWELL-WOODFORD- 317 PM CDT THU JUN 25 2009 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL ILLINOIS. .DAY ONE...TONIGHT EXTREMELY HUMID CONDITIONS IN COMBINATION WITH PLENTY OF SUNSHINE WARMING UP CENTRAL ILLINOIS INTO THE LOW TO MID 90S WILL RESULT IN HEAT INDICES IN EXCESS OF 100 DEGREES ACROSS MUCH OF THE STATE. SCATTERED THUNDERSTORMS WILL BE POSSIBLE LATE THIS EVENING...AS A COLD FRONT PUSHES ACROSS THE AREA. THERE IS A SLIGHT RISK FOR SEVERE STORMS THIS EVENING. LARGE HAIL AND DAMAGING WINDS WILL BE THE MAIN HAZARDS. LOCALLY HEAVY RAIN MAY CAUSE FLOODING...DUE TO THE SLOW MOVEMENT OF THE STORMS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY THERE IS A SLIGHT RISK OF SEVERE STORMS ON SATURDAY AFTERNOON AND EVENING...AS ANOTHER COLD FRONT PUSHES ACROSS THE AREA. THE SLIGHT RISK AREA IS MAINLY ALONG AND NORTHWEST OF THE I-55 CORRIDOR. DAMAGING WINDS AND LARGE HAIL WILL BE POSSIBLE WITH THE STRONGER STORMS. HOT AND HUMID CONDITIONS ARE EXPECTED AGAIN ON SATURDAY...WITH HEAT INDEX VALUES AROUND 100. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED THIS EVENING. ILZ044>046-052>057-061-261100- CHAMPAIGN-CHRISTIAN-COLES-DOUGLAS-EDGAR-MACON-MOULTRIE-PIATT- SHELBY-VERMILION- 317 PM CDT THU JUN 25 2009 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL ILLINOIS AND EAST CENTRAL ILLINOIS. .DAY ONE...TONIGHT EXTREMELY HUMID CONDITIONS IN COMBINATION WITH PLENTY OF SUNSHINE WARMING UP CENTRAL ILLINOIS INTO THE LOW TO MID 90S WILL RESULT IN HEAT INDICES IN EXCESS OF 100 DEGREES ACROSS MUCH OF THE STATE. SCATTERED THUNDERSTORMS WILL BE POSSIBLE LATE THIS EVENING...AS A COLD FRONT PUSHES ACROSS THE AREA. THERE IS A SLIGHT RISK FOR SEVERE STORMS THIS EVENING. LARGE HAIL AND DAMAGING WINDS WILL BE THE MAIN HAZARDS. LOCALLY HEAVY RAIN MAY CAUSE FLOODING...DUE TO THE SLOW MOVEMENT OF THE STORMS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY ANOTHER DISTURBANCE IS EXPECTED TO TRIGGER MORE STORMS SATURDAY NIGHT. AT THIS TIME...SEVERE WEATHER IS NOT EXPECTED SATURDAY NIGHT...SOUTHEAST OF INTERSTATE 55. HOT AND HUMID CONDITIONS ARE EXPECTED AGAIN ON SATURDAY...WITH HEAT INDEX VALUES AROUND 100. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED THIS EVENING. ILZ062-063-066>068-071>073-261100- CLARK-CLAY-CRAWFORD-CUMBERLAND-EFFINGHAM-JASPER-LAWRENCE-RICHLAND- 317 PM CDT THU JUN 25 2009 ...HEAT ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST CENTRAL ILLINOIS AND SOUTHEAST ILLINOIS. .DAY ONE...TONIGHT EXTREMELY HUMID CONDITIONS IN COMBINATION WITH PLENTY OF SUNSHINE WARMING UP CENTRAL ILLINOIS INTO THE LOW TO MID 90S WILL RESULT IN HEAT INDICES IN EXCESS OF 100 DEGREES ACROSS MUCH OF THE STATE. SCATTERED THUNDERSTORMS WILL BE POSSIBLE THIS EVENING...AS A COLD FRONT PUSHES ACROSS THE AREA. THERE IS A SLIGHT RISK FOR SEVERE STORMS THROUGH THIS EVENING. LARGE HAIL AND DAMAGING WINDS WILL BE THE MAIN HAZARDS. LOCALLY HEAVY RAIN MAY CAUSE FLOODING...DUE TO THE SLOW MOVEMENT OF THE STORMS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY ANOTHER DISTURBANCE IS EXPECTED TO TRIGGER STORMS SATURDAY NIGHT AND SUNDAY MORNING...BUT THESE ARE CURRENTLY NOT EXPECTED TO BE SEVERE IN SOUTHEAST ILLINOIS. HOT AND HUMID CONDITIONS ARE EXPECTED AGAIN ON SATURDAY...WITH HEAT INDEX VALUES AROUND 100. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED THIS EVENING. && THIS PRODUCT...ALONG WITH OTHER WEATHER...HYDROLOGIC AND CLIMATE INFORMATION IS AVAILABLE ON THE WEB AT HTTP://WWW.WEATHER.GOV/LINCOLN. THIS ADDRESS IS ALL IN LOWER CASE. HJS
In the hours before
Special weather statement, Jun 25, 8:26 PM CDT, 5 hours 26 minutes before
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</html>Special weather statement, Jun 25, 9:29 PM CDT, 4 hours 23 minutes before
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</html>The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 25, 7:05 PM CDT | Special Weather Statement | ILX | McLean | 55 min |
| Jun 25, 7:34 PM CDT | Special Weather Statement | ILX | Champaign | 56 min |
| Jun 25, 8:26 PM CDT | Special Weather Statement | ILX | Coles, Douglas, Edgar | 64 min |
Nearby
Heat Advisories in Illinois, 2009Every heat advisory in 2009
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.