Alert archive / Illinois / Tornado Warnings in 2007
Tornado Warning 13, NWS Chicago, IL
NWS Chicago, IL issued this tornado warning at Aug 8, 2007, 2:48 PM CDT for Cook County, Kane County, Illinois. It was in force for 42 min. 6 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 8, 2007, 2:48 PM CDT (19:48 UTC)
- Expired
- Aug 8, 2007, 3:30 PM CDT
- In force
- 42 min
- Issued by
- NWS Chicago, IL
- Area
- Counties, with a storm outline in the text
Counties Cook County, IL, Kane County, IL
The radar
The Chicago radar (KLOT), 55 km from the middle of the area, began a volume at 19:48 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 8, 2:51 PM CDT | FUNNEL CLOUD | Pingree Grove, IL | UNCONFIRMED REPORT OF FUNNEL CLOUD POSSIBLY A TORNADO RELAYED FROM TRAINED SPOTTER. |
| Aug 8, 2:55 PM CDT | FUNNEL CLOUD | Elgin, IL | REPORT RELAYED FROM MEDIA OF FUNNEL CLOUD AND POSSIBLE TORNADO VISIBLE FROM I-90 NEAR ELGIN. |
| Aug 8, 2:55 PM CDT | HAIL 1 | West Dundee, IL | |
| Aug 8, 3:09 PM CDT | FUNNEL CLOUD | Barrington Hills, IL | TRAINED SPOTTER CONFIRMS FUNNEL CLOUD WITH NO TOUCHDOWN AT THIS TIME. |
| Aug 8, 3:18 PM CDT | FUNNEL CLOUD | Schaumburg, IL | ROTATING WALL CLOUD VISIBLE FROM SCHAUMBURG LOOKING DUE WEST. NO FUNNEL VISIBLE JUST A ROTATING WALL CLOUD |
| Aug 8, 3:22 PM CDT | FUNNEL CLOUD | Schaumburg, IL | FUNNEL OVERHEAD WITH VISIBLE ROTATION |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 7.8 hours before the alert went out and 196 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
- 1214 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- -4 m²/s²
- 0-3 km storm-relative helicity
- 16 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS53 KLOT 081948 TORLOT ILC031-089-082030- /O.NEW.KLOT.TO.W.0013.070808T1948Z-070808T2030Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 248 PM CDT WED AUG 8 2007 THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A * TORNADO WARNING FOR... NORTHWESTERN COOK COUNTY IN NORTHEAST ILLINOIS... NORTHEASTERN KANE COUNTY IN NORTHEAST ILLINOIS... * UNTIL 330 PM CDT... * AT 244 PM...NATIONAL WEATHER SERVICE RADAR INDICATED STRONG ROTATION IN A SEVERE THUNDERSTORM NEAR GILBERTS...MOVING EAST AT 10 MPH. * THE TORNADO WILL BE NEAR... SLEEPY HOLLOW...AND ELGIN BY 305 PM... WEST DUNDEE BY 310 PM... CARPENTERSVILLE BY 315 PM... EAST DUNDEE BY 320 PM... HOFFMAN ESTATES......BARRINGTON...INVERNESS...AND 6 MILES NORTH OF STREAMWOOD BY 330 PM... A FUNNEL CLOUD WAS REPORTED NEAR MAPLE PARK, TAKE COVER NOW IF NO BASEMENT IS AVAILABLE...MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR. MOBILE HOMES AND VEHICLES SHOULD BE ABANDONED FOR MORE SUBSTANTIAL SHELTER. AVOID WINDOWS LAT...LON 4215 8844 4199 8840 4200 8792 4216 8792 $$
3 follow-up statements
000 WWUS53 KLOT 082001 SVSLOT SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 300 PM CDT WED AUG 8 2007 ILC031-089-082030- /O.CON.KLOT.TO.W.0013.000000T0000Z-070808T2030Z/ COOK IL-KANE IL- 300 PM CDT WED AUG 8 2007 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 330 PM CDT FOR NORTHEASTERN KANE AND NORTHWESTERN COOK COUNTIES... AT 300 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR ELGIN...MOVING EAST AT 15 MPH. THE TORNADO WILL BE NEAR... STREAMWOOD AND BARRINGTON HILLS BY 305 PM CDT... SOUTH BARRINGTON BY 310 PM CDT... HOFFMAN ESTATES BY 315 PM CDT... SCHAUMBURG AND INVERNESS BY 320 PM CDT... PALATINE BY 325 PM CDT... ROLLING MEADOWS AND ARLINGTON HEIGHTS BY 330 PM CDT... A FUNNEL CLOUD WAS REPORTED ON INTERSTATE 90 NEAR ELGIN AT 255 PM CDT. TAKE COVER NOW IF NO BASEMENT IS AVAILABLE...MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR. MOBILE HOMES AND VEHICLES SHOULD BE ABANDONED FOR MORE SUBSTANTIAL SHELTER. AVOID WINDOWS LAT...LON 4215 8839 4199 8835 4200 8792 4216 8792 $$
000
WWUS53 KLOT 082014
SVSLOT
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
311 PM CDT WED AUG 8 2007
ILC089-082021-
/O.CAN.KLOT.TO.W.0013.000000T0000Z-070808T2030Z/
KANE IL-
311 PM CDT WED AUG 8 2007
...THE TORNADO WARNING FOR NORTHEAST KANE COUNTY IS CANCELLED...
THE THUNDERSTORM THAT PROMPTED THE WARNING HAS MOVED EAST INTO
NORTHWEST COOK COUNTY.
LAT...LON 4201 8793 4201 8795 4201 8826 4206 8826
4207 8824 4216 8824 4215 8792 4201 8792
$$
ILC031-082030-
/O.CON.KLOT.TO.W.0013.000000T0000Z-070808T2030Z/
COOK IL-
311 PM CDT WED AUG 8 2007
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 330 PM CDT FOR
NORTHWESTERN COOK COUNTY...
AT 311 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR STREAMWOOD...OR
ABOUT NEAR HOFFMAN ESTATES...MOVING EAST AT 15 MPH.
THE TORNADO WILL BE NEAR...
8 MILES SOUTH OF BARRINGTON BY 320 PM CDT...
SCHAUMBURG AND INVERNESS BY 325 PM CDT...
ROLLING MEADOWS...ELK GROVE VILLAGE...PALATINE AND ARLINGTON
HEIGHTS BY 330 PM CDT...
A FUNNEL CLOUD WAS REPORTED OVER BARRINGTON HILLS AT 309 PM.
LAT...LON 4201 8793 4201 8795 4201 8826 4206 8826
4207 8824 4216 8824 4215 8792 4201 8792
$$000
WWUS53 KLOT 082034
SVSLOT
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
332 PM CDT WED AUG 8 2007
ILC031-082042-
/O.EXP.KLOT.TO.W.0013.000000T0000Z-070808T2030Z/
COOK IL-
332 PM CDT WED AUG 8 2007
...THE TORNADO WARNING FOR NORTHWESTERN COOK COUNTY EXPIRES AT 330
PM CDT...
THE THUNDERSTORM THAT PROMPTED THE WARNING HAS WEAKENED...THUS THE
WARNING HAS BEEN ALLOWED EXPIRED.
LAT...LON 4201 8793 4201 8795 4201 8826 4206 8826
4207 8824 4216 8824 4215 8792 4201 8792
$$The office that day
Everything else NWS Chicago, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 9:28 PM CDT | Flash Flood Watch | LOT | Boone, DeKalb, DuPage, Ford, Grundy, Iroquois and 10 more | 7 hr |
| Aug 7, 11:45 PM CDT | Severe Thunderstorm Warning | LOT | Kendall, LaSalle | 45 min |
| Aug 8, 4:32 AM CDT | Flash Flood Watch | LOT | Boone, DeKalb, DuPage, Grundy, Kane, Kendall and 6 more | 24 hr |
| Aug 8, 1:11 PM CDT | River Flood Warning | LOT | Boone | 33 hr |
| Aug 8, 2:26 PM CDT | Tornado Warning | LOT | Kane | 19 min |
| Aug 8, 3:25 PM CDT | Special Marine Warning | LOT | 2 hr | |
| Aug 8, 5:42 PM CDT | Flash Flood Warning | LOT | DeKalb, Kane | 6 hr |
Nearby
Tornado Warnings in Illinois, 2007Every tornado warning in 2007Tornadoes in 2007
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.