Alert archive / Illinois / Tornado Warnings in 2012
Tornado Warning 10, NWS Chicago, IL
NWS Chicago, IL issued this tornado warning at Oct 14, 2012, 1:43 PM CDT for 4 counties in Illinois. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Oct 14, 2012, 1:43 PM CDT (18:43 UTC)
- Expired
- Oct 14, 2012, 2:15 PM CDT
- In force
- 32 min
- Issued by
- NWS Chicago, IL
- Area
- Storm-based polygon
Counties DeKalb County, IL, Kane County, IL, Kendall County, IL, LaSalle County, IL
The radar
The Chicago radar (KLOT), 33 km from the middle of the area, began a volume at 18:47 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, 6.7 hours before the alert went out and 166 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
- 11 J/kg
- Mixed-layer CIN
- -132 J/kg
- Mixed-layer LCL
- 938 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 197 m²/s²
- 0-3 km storm-relative helicity
- 246 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
072
WFUS53 KLOT 141843
TORLOT
ILC037-089-093-099-141915-
/O.NEW.KLOT.TO.W.0010.121014T1843Z-121014T1915Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
143 PM CDT SUN OCT 14 2012
THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A
* TORNADO WARNING FOR...
SOUTHEASTERN DE KALB COUNTY...
SOUTHERN KANE COUNTY...
WESTERN KENDALL COUNTY...
NORTHEASTERN LA SALLE COUNTY...
* UNTIL 215 PM CDT
* AT 142 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED NEAR NEWARK...OR 6 MILES SOUTH OF SANDWICH...AND
MOVING NORTHEAST AT 45 MPH.
* THIS TORNADIC STORM WILL BE NEAR...
SANDWICH AROUND 150 PM.
PLANO...LITTLE ROCK AND YORKVILLE AROUND 155 PM.
SUGAR GROVE AND MONTGOMERY AROUND 205 PM.
AURORA AROUND 210 PM.
NORTH AURORA AND ELBURN AROUND 215 PM.
OTHER LOCATIONS IMPACTED...
AURORA UNIVERSITY...IL MATH AND SCIENCE ACADEMY...SANDWICH
FAIRGROUNDS...WAUBONSEE COMMUNITY COLLEGE...
I-88 BETWEEN MILE MARKERS 104 AND 118.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A VEHICLE OR OUTDOORS... MOVE
TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING
DEBRIS.
&&
LAT...LON 4176 8826 4175 8826 4145 8859 4145 8860
4144 8860 4156 8882 4194 8848
TIME...MOT...LOC 1843Z 215DEG 38KT 4157 8863
$$
ENDERLEN2 follow-up statements
046
WWUS53 KLOT 141854
SVSLOT
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
154 PM CDT SUN OCT 14 2012
ILC037-089-093-099-141915-
/O.CON.KLOT.TO.W.0010.000000T0000Z-121014T1915Z/
KANE IL-KENDALL IL-LA SALLE IL-DE KALB IL-
154 PM CDT SUN OCT 14 2012
...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN DE KALB...
NORTHEASTERN LA SALLE...WESTERN KENDALL AND SOUTHERN KANE COUNTIES
UNTIL 215 PM CDT...
AT 153 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED NEAR PLANO...MOVING NORTHEAST AT 45 MPH.
THIS DANGEROUS STORM WILL BE NEAR...
SUGAR GROVE AND MONTGOMERY AROUND 205 PM CDT.
AURORA AROUND 210 PM CDT.
NORTH AURORA AND ELBURN AROUND 215 PM CDT.
OTHER LOCATIONS AFFECTED...
AURORA UNIVERSITY...IL MATH AND SCIENCE ACADEMY...SANDWICH
FAIRGROUNDS...WAUBONSEE COMMUNITY COLLEGE...
THE FOLLOWING INTERSTATES MAY BE IMPACTED...
I-88 BETWEEN MILE MARKERS 104 AND 117.
LAT...LON 4162 8877 4194 8848 4176 8826 4175 8826
4150 8853
TIME...MOT...LOC 1855Z 215DEG 38KT 4167 8853
$$
ENDERLEN273
WWUS53 KLOT 141912
SVSLOT
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
212 PM CDT SUN OCT 14 2012
ILC037-089-093-099-141921-
/O.EXP.KLOT.TO.W.0010.000000T0000Z-121014T1915Z/
KANE IL-KENDALL IL-LA SALLE IL-DE KALB IL-
212 PM CDT SUN OCT 14 2012
...THE TORNADO WARNING FOR SOUTHEASTERN DE KALB...NORTHEASTERN LA
SALLE...WESTERN KENDALL AND SOUTHERN KANE COUNTIES WILL EXPIRE AT 215
PM CDT...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...HOWEVER GUSTY WINDS AND HEAVY RAIN ARE STILL POSSIBLE WITH
THIS THUNDERSTORM.
LAT...LON 4162 8877 4194 8848 4176 8826 4175 8826
4150 8853
TIME...MOT...LOC 1911Z 215DEG 38KT 4181 8840
$$
BIRKThe office that day
Everything else NWS Chicago, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 14, 12:59 PM CDT | Severe Thunderstorm Warning | LOT | DeKalb, Grundy, Kendall, LaSalle | 61 min |
| Oct 14, 1:19 PM CDT | Special Weather Statement | LOT | Cook | 26 min |
| Oct 14, 1:32 PM CDT | Special Weather Statement | LOT | Kane, Lake, McHenry | 58 min |
| Oct 14, 2:19 PM CDT | Tornado Warning | LOT | Cook, DuPage | 19 min |
| Oct 14, 3:03 PM CDT | Special Weather Statement | LOT | Ford, Kankakee, Will | 27 min |
| Oct 14, 3:58 PM CDT | Special Marine Warning | LOT | 64 min |
Nearby
Tornado Warnings in Illinois, 2012Every tornado warning in 2012Tornadoes in 2012
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.