Alert archive / Illinois / Flash Flood Warnings in 2006
Flash Flood Warning 21, NWS Chicago, IL
NWS Chicago, IL issued this flash flood warning at Sep 22, 2006, 6:04 PM CDT for Cook County, DuPage County, Illinois. It was in force for 3 hr. 3 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
- Sep 22, 2006, 6:04 PM CDT (23:04 UTC)
- Expired
- Sep 22, 2006, 9:00 PM CDT
- In force
- 3 hr
- Issued by
- NWS Chicago, IL
- Area
- Counties, with a storm outline in the text
Counties Cook County, IL, DuPage County, IL
The radar
The Chicago radar (KLOT), 37 km from the middle of the area, began a volume at 23:08 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 |
|---|---|---|---|
| Sep 22, 6:20 PM CDT | HEAVY RAIN 0 | Bensenville, IL | 6 TO 12 INCHES OF WATER ON ROAD. |
| Sep 22, 6:35 PM CDT | HEAVY RAIN 0 | Wilmette, IL | 6 INCHES OF WATER IN GREEN BAY ROAD |
| Sep 22, 6:40 PM CDT | HEAVY RAIN 0 | Niles, IL | 6 INCHES OF WATER STANDING ON ROAD AT BALLARD AND GREENWOOD |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 11.1 hours before the alert went out and 205 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
- 831 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 571 m²/s²
- 0-3 km storm-relative helicity
- 612 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS53 KLOT 222311 FFWLOT ILC031-043-230200- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 604 PM CDT FRI SEP 22 2006 THE NATIONAL WEATHER SERVICE IN ROMEOVILLE HAS ISSUED A * FLASH FLOOD WARNING FOR... NORTHERN COOK COUNTY IN NORTHEAST ILLINOIS... DUPAGE COUNTY IN NORTHEAST ILLINOIS... * UNTIL 900 PM CDT * AT 604 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED RAINFALL RATES OF 2 INCHES AN HOUR FROM THUNDERSTORMS MOVING OVER DUPAGE AND NORTHERN COOK COUNTIES. TOTAL RAINFALL SO FAR HAS BEEN UP TO 3 TO 4 INCHES IN NORTHWEST DUPAGE COUNTY NEAR WEST CHICAGO... WAYNE... AND BARTLETT. SPOTTERS AND EMERGENCY MANAGEMENT AGENCIES HAVE REPORTED STREET FLOODING WITH WATER A FOOT DEEP OR MORE IN MANY LOCATIONS. ADDITIONAL RAIN WILL FALL OVER THE AREA THROUGH 630 PM. * LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WOOD DALE... STREAMWOOD... SCHILLER PARK... PROSPECT HEIGHTS... NORTHBROOK... NILES... ITASCA... HANOVER PARK... ELK GROVE VILLAGE...BENSENVILLE AND BARTLETT. EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF CREEKS...DRAINAGE DITCHES...STREETS AND UNDERPASSES...AS WELL AS BASEMENTS AND LOW LYING SPOTS. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. LAT...LON 4173 8825 4198 8766 4215 8774 4210 8822 $$ ALLSOPP
3 follow-up statements
000 WGUS73 KLOT 222344 FFSLOT FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 642 PM CDT FRI SEP 22 2006 ILC031-043-230200- COOK IL-DUPAGE IL- 642 PM CDT FRI SEP 22 2006 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR DUPAGE AND NORTHERN COOK COUNTIES... AT 640 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT THUNDERSTORMS WERE RAPIDLY DIMINISHING OVER DUPAGE AND COOK COUNTY. HOWEVER...RADAR INDICATES THAT 3 TO 4 INCHES OF RAIN FELL IN AN AREA FROM WAYNE AND BARTLETT IN NORTHWEST DUPAGE COUNTY...EAST NORTHEAST TO GLENCOE AND WINNETKA IN NORTHERN COOK COUNTY. THERE HAVE BEEN NUMEROUS REPORTS OF FLOODED ROADS AND INTERSECTIONS WITH WATER A FOOT DEEP OR MORE. ALTHOUGH RAIN WAS DIMINISHING...RUNOFF FROM EARLIER RAIN WILL CONTINUE TO FLOOD CREEKS...DRAINAGE AREAS...ROADS...VIADUCTS...AND LOW LYING AREAS. BASEMENTS WILL ALSO FLOOD IN SOME AREAS. FLOOD WATERS SHOULD GRADUALLY SUBSIDE BY 900 PM. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. LAT...LON 4173 8825 4198 8766 4215 8774 4210 8822 $$ ALLSOPP
000 WGUS73 KLOT 230050 FFSLOT FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 746 PM CDT FRI SEP 22 2006 ILC031-043-230200- COOK IL-DUPAGE IL- 746 PM CDT FRI SEP 22 2006 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR DUPAGE AND NORTHERN COOK COUNTIES... AT 738 PM...THUNDERSTORMS HAD ENDED OVER DUPAGE AND COOK COUNTIES. RADAR ESTIMATED THAT 3 TO 4 INCHES OF RAIN FELL LATE THIS AFTERNOON AND EARLY THIS EVENING IN A BAND FROM NORTHWEST DUPAGE COUNTY THROUGH NORTHERN COOK COUNTY. HARDEST HIT AREAS WERE FROM WAYNE TO BARTLETT TO SCHAUMBURG TO ARLINGTON HEIGHTS AND NORTHBROOK. ALTHOUGH RAIN HAS ENDED...FLOODING OF STREETS...LOW LYING AREAS...CREEKS AND DRAINAGE AREAS WILL CONTINUE THROUGH 830 PM THEN SLOWLY SUBSIDE OVERNIGHT. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. LAT...LON 4173 8825 4198 8766 4215 8774 4210 8822 $$ ALLSOPP
000 WGUS73 KLOT 230215 FFSLOT ILC031-043-230245- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 912 PM CDT FRI SEP 22 2006 THE FLASH FLOOD WARNING FOR DUPAGE AND COOK COUNTIES IN ILLINOIS HAS EXPIRED. MOST OF THE WATER WILL B SUBSIDING NOW. THERE COULD BE ISOLATED AREAS OF HIGH WATER. ESPECIALLY IN LOW LYING PLACES AND NEAR CREEKS AND STREAMS. IF YOU ENCOUNTER A FLOODED ROAD...TURN AROUND AND FIND AN ALTERNATE ROUTE. A CAR OR SMALL TRUCK INCLUDING SUVS AND PICKUPS CAN BE SWEPT OFF A ROAD AND INTO A STREAM BY AS LITTLE AS TWO FEET OF WATER. $$ WHW
The office that day
Everything else NWS Chicago, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 22, 4:02 PM CDT | Severe Thunderstorm Warning | LOT | Lee, Ogle | 58 min |
| Sep 22, 4:06 PM CDT | Tornado Warning | LOT | DeKalb, Kane, LaSalle | 39 min |
| Sep 22, 4:25 PM CDT | Tornado Warning | LOT | Cook, DuPage, Kane | 65 min |
| Sep 22, 4:26 PM CDT | Tornado Warning | LOT | Lee | 42 min |
| Sep 22, 4:45 PM CDT | Special Marine Warning | LOT | 60 min | |
| Sep 22, 4:55 PM CDT | Severe Thunderstorm Warning | LOT | DeKalb | 35 min |
| Sep 22, 5:04 PM CDT | Severe Thunderstorm Warning | LOT | Kane | 26 min |
| Sep 22, 5:11 PM CDT | Tornado Warning | LOT | DeKalb | 19 min |
| Sep 22, 5:16 PM CDT | Severe Thunderstorm Warning | LOT | Grundy, Kendall, LaSalle, Will | 44 min |
| Sep 22, 5:18 PM CDT | Tornado Warning | LOT | Kane | 42 min |
| Sep 22, 5:22 PM CDT | Severe Thunderstorm Warning | LOT | Cook, DuPage | 53 min |
| Sep 22, 5:52 PM CDT | Tornado Warning | LOT | Cook | 24 min |
| Sep 22, 6:01 PM CDT | Special Marine Warning | LOT | 21 min | |
| Sep 22, 6:10 PM CDT | Tornado Warning | LOT | Cook | 23 min |
| Sep 22, 6:23 PM CDT | Special Marine Warning | LOT | 37 min |
Nearby
Flash Flood Warnings in Illinois, 2006Every flash flood warning in 2006
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.