Alert archive / Illinois / Flash Flood Warnings in 2003
Flash Flood Warning 13, NWS Chicago, IL
NWS Chicago, IL issued this flash flood warning at Nov 4, 2003, 7:05 PM CST for Cook County, DuPage County, Illinois. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Nov 4, 2003, 7:05 PM CST (01:05 UTC)
- Expired
- Nov 4, 2003, 10:00 PM CST
- 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), 51 km from the middle of the area, began a volume at 01:07 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, 1.1 hours before the alert went out and 214 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
- 95 J/kg
- Mixed-layer CIN
- -71 J/kg
- Mixed-layer LCL
- 1540 m above ground
- 0-6 km bulk shear
- 66 kt
- 0-1 km storm-relative helicity
- 197 m²/s²
- 0-3 km storm-relative helicity
- 207 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS53 KLOT 050108 FFWLOT ILC031-043-050400- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE CHICAGO IL 705 PM CST TUE NOV 4 2003 THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A * FLASH FLOOD WARNING FOR... COOK COUNTY IN NORTHEAST ILLINOIS DUPAGE COUNTY IN NORTHEAST ILLINOIS * UNTIL 1000 PM CST * AT 705 PM CST...WEATHER SERVICE RADAR INDICATED VERY HEAVY RAINS MOVING BACK INTO DUPAGE COUNTY AND HEADED FOR CENTRAL COOK COUNTY. SOME OF THESE AREAS HAVE ALREADY HAD IN EXCESS OF 1.5 INCHES OF RAIN SINCE AROUND 530 PM AND ADDITIONAL RAINFALL OF UP TO AN INCH IS POSSIBLE IN THE NEXT HOUR OR SO. * THE TOWNS OF YORK CENTER...WILLOW SPRINGS...WESTMONT...WESTCHESTER AND VILLA PARK ARE SOME TOWNS IN THE AREA OF THE FLOODING. RAPID FLOODING OF STREETS..UNDERPASSES..DRAINAGE AREAS AND BASEMENTS WILL OCCUR. DO NOT ALLOW CHILDREN TO PLAY IN OR NEAR DRAINAGE OR FLOODED AREAS. 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. REPORT SEVERE WEATHER OR FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY AND HAVE THEM RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE. LAT...LON 4213 8735 4179 8756 4167 8805 4199 8805 $$ KAPLAN
3 follow-up statements
000 WGUS73 KLOT 050200 FFSLOT ILC031-043-050400- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE CHICAGO IL 800 PM CST TUE NOV 4 2003 A FLASH FLOOD WARNING CONTINUES FOR DUPAGE AND COOK COUNTY UNTIL 1100 PM CST... AT 756 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED HEAVY RAINS TAPERING OFF IN DUPAGE AND COOK COUNTY. BETWEEN 1.5 AND 2 INCHES OF RAIN FELL BETWEEN AROUND 530 AND 745 PM. RAIN WILL CONTINUE FOR THE NEXT COUPLE HOURS AT GENERALLY LIGHT TO MODERATE RATES BUT ADDITIONAL HEAVY RAIN COULD OCCUR. AT 740 PM STREETS WERE REPORTED NEAR IMPASSABLE AT TOUHY AND CALIFORNIA IN CHICAGO. ADD THE TOWNS OF YORK CENTER...WOOD DALE...WILLOW SPRINGS...WESTMONT AND WESTERN SPRINGS AND OAK PARK AND CHICAGO ARE IN THE AREA OF THIS FLOODING. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. IF IN A FLOOD PRONE AREA...MOVE TO HIGHER GROUND IMMEDIATELY. RESIDENTS LIVING ALONG CREEKS AND STREAMS ARE ESPECIALLY VULNERABLE TO THE EFFECTS OF FLASH FLOODING. DO NOT ATTEMPT TO CROSS FLOODED AREAS BY FOOT OR AUTOMOBILE. EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING ON FLOOD PRONE HIGHWAYS...STREETS AND UNDERPASSES. BUILDUP OF LEAVES WILL AGGRAVATE THE FLOOD POTENTIAL. NEVER WALK OR DRIVE INTO FLOODED AREAS AND ABANDON VEHICLES CAUGHT IN RISING WATERS. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLASH FLOODS. IT IS VERY DIFFICULT AT NIGHT TO JUDGE HOW MUCH WATER COVERS ROADWAYS. DO NOT ATTEMPT TO CROSS FLOODED ROADWAYS. REPORT FLASH FLOODING TO YOUR LOCAL ESDA...OR THE NEAREST LAW ENFORCEMENT AGENCY...FOR RELAY TO THE NATIONAL WEATHER SERVICE. STAY TUNED FOR LATER STATEMENTS. LAT...LON 4214 8735 4179 8756 4168 8804 4199 8807 $$ KAPLAN NNNN
000 WGUS73 KLOT 050309 FFSLOT ILC031-043-050400- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE CHICAGO IL 908 PM CST TUE NOV 4 2003 A FLASH FLOOD WARNING CONTINUES FOR DUPAGE AND COOK COUNTY UNTIL 1000 PM CST... AT 900 PM GENERALLY LIGHT TO OCCASIONAL MODERATE RAIN WAS FALLING OVER DUPAGE AND COOK COUNTIES. RADAR ESTIMATES AND OBSERVATIONS INDICATE THAT FROM 1.5 TO 2.5 INCHES FELL IN PORTIONS OF CENTRAL COOK COUNTY AND EASTERN DUPAGE COUNTY FROM AROUND 530 TO 900 PM. FLOODING SHOULD SLOWLY SUBSIDE. CLOGGED SEWERS DUE TO LEAVES MAY SLOW THE LOWERING OF WATER LEVELS. THE TOWNS OF YORK CENTER...WOOD DALE...WILLOW SPRINGS...WESTMONT AND WESTERN SPRINGS AND OAK PARK AND CHICAGO ARE IN THE AREA OF THIS FLOODING. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. IF IN A FLOOD PRONE AREA...MOVE TO HIGHER GROUND IMMEDIATELY. RESIDENTS LIVING ALONG CREEKS AND STREAMS ARE ESPECIALLY VULNERABLE TO THE EFFECTS OF FLASH FLOODING. DO NOT ATTEMPT TO CROSS FLOODED AREAS BY FOOT OR AUTOMOBILE. REPORT FLASH FLOODING TO YOUR LOCAL ESDA...OR THE NEAREST LAW ENFORCEMENT AGENCY...FOR RELAY TO THE NATIONAL WEATHER SERVICE. STAY TUNED FOR LATER STATEMENTS. LAT...LON 4214 8735 4179 8756 4168 8804 4199 8807 $$ KAPLAN NNNN
000 WGUS73 KLOT 050408 FFSLOT ILC031-043-050430- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE CHICAGO IL 1008 PM CST TUE NOV 4 2003 THE FLASH FLOOD WARNING FOR COOK AND DUPAGE COUNTIES HAS EXPIRED. LIGHT RAIN SHOULD GRADUALLY END BEFORE MIDNIGHT...WHILE HIGH WATER FROM EARLIER CONTINUES TO SUBSIDE. LAT...LON 4214 8735 4179 8756 4168 8804 4199 8807 $$ KAPLAN NNNN
Nearby
Flash Flood Warnings in Illinois, 2003Every flash flood warning in 2003
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.