Alert archive / Illinois / Flash Flood Warnings in 1987
Flash Flood Warning 1, NWS Chicago, IL
NWS Chicago, IL issued this flash flood warning at Aug 14, 1987, 5:45 AM CDT for Cook County, DuPage County, Illinois. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- Aug 14, 1987, 5:45 AM CDT (10:45 UTC)
- Expired
- Aug 14, 1987, 8:00 AM CDT
- In force
- 2 hr
- Issued by
- NWS Chicago, IL
- Area
- Whole counties
Counties Cook County, IL, DuPage County, IL
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Aug 14, 2:05 AM CDT, 3 hours 40 minutes before
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</html>Special weather statement, Aug 14, 2:11 AM CDT, 3 hours 34 minutes before
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</html>Special weather statement, Aug 14, 2:53 AM CDT, 2 hours 52 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO IL
2 55 AM CDT THU AUG 14 1987
...HEAVY THUNDERSTORMS ACROSS DUPAGE AND NORTHWEST HALF OF COOK
COUNTY...
AT 2 50 AM THIS MORNING THUNDERSTORMS CONTAINING VERY HEAVY RAIN
WERE LOCATED ACROSS NORTHERN COOK AND EXTREME NORTHWEST DUPAGE COUNTIES.
HOWEVER AT OHARE THE HEAVY RAIN HAS ENDED FOR NOW. IN ABOUT A
5 HOUR PERIOD...BETWEEN 9 20 PM LAST EVENING AND 2 30 AM THIS
FRIDAY MORNING...5.60 INCHES OF RAIN FELL AT OHARE AS A SERIES OF
STRONG THUNDERSTORMS MOVED OVER THE AIRPORT.
MOTORISTS ARE URGED TO EXERCISE CAUTION WHILE TRAVELING ACROSS
THE NORTHWEST PORTION OF THE METROPOLITAN AREA EARLY THIS MORNING AS
PONDING OF FREEWAYS...FLOODING OF VIADUCTS AS WELL AS FLOODING OF LOW
LYING AREAS IS LIKELY.
MORRISONSpecial weather statement, Aug 14, 3:19 AM CDT, 2 hours 26 minutes before
URBAN AND SMALL STREAMS FLOOD STATEMENT NATIONAL WEATHER SERVICE ROCKFORD IL 320 AM CDT FRI AUG 14 1987 ...MINOR FLOODING IN ROCKFORD METRO AREA THIS MORNING... AT 315 AM CDT... STRONG THUNDERSTORMS CONTINUE ACROSS NORTHERN ILLINOIS GENERALLY NORTH OF A MOLINE ILLINOIS TO SOUTH CHICAGO LINE. THE STRONGER STORMS WERE LOCATED FROM NEAR ROCKFORD AND IN THE CITY OF CHICAGO AND IN WEST AND NORTH SUBURBS OF CHICAGO. MOVEMENT OF THE THUNDERSTORMS WAS NORTHEAST AT 25 MPH. THE THUNDERSTORMS WERE PRODUCING VERY HEAVY RAINFALL AMOUNTS... GUSTY WINDS... AND DANGEROUS LIGHTNING. THE HEAVY RAINFALL IS CAUSING THE REAL PROBLEMS THIS MORNING. REPORTS OF WATER PONDING IN LOW AREAS... MINOR STREET AND UNDERPASS FLOODING CAUSING SOME CARS TO STALL. DRAINAGE DITCHS AND SMALL STREAMS IN NORTHERN ILLINOIS... ESPECIALLY NEAR URBAN AREAS ARE RUNNING NEAR IF NOT AT FULL CAPACITY. SOME STREAMS IN THE CITY OF ROCKFORD ARE STARTING TO COVER LOW AREAS AND CAUSE SOME MINOR PROBLEMS WITH TRAVEL. OVER 2 INCHES OF RAIN HAS FALLEN TONIGHT IN AT THE ROCKFORD AIRPORT... THE MAJORITY FALLING IN THE LAST THREE HOURS. MORE RAIN IS EXPECTED ON INTO THE MORNING HOURS... BUT SHOULD BE SLOWLY TAPERING OFF. THE ADDITIONAL RAINFALL WILL CONTINUE TO CAUSE PROBLEMS WELL INTO THE MORNING HOURS... ESPECIALLY IN URBAN AND LOW LYING AREAS. MINOR FLOODING OF STREETS... DRAINAGE AREAS... UNDERPASSES AND SMALL STREAMS CAN BE EXPECTED. IF WATER IS COVERING THE ROAD... DO NOT CROSS! THE WATER MAY BE DEEPER THAN YOU THINK OR THE ROAD COULD HAVE BEEN WASHED AWAY! USE CAUTION IN TRAVEL... AND TAKE EXTRA TIME IN TRAVEL THIS MORNING. NORTHERN ILLINOIS TRAVELERS IN OR NEAR... THE GREATER ROCKFORD METRO AREA... BELVIDERE... OREGON... SYCAMORE... DEKALB... ROCHELLE... DIXON OR NEAR SMALL CREEKS AND SMALL STREAMS WILL BE THE MOST LIKELY TO EXPERIENCE MINOR FLOOD PROBLEMS. ATTN ISP... 1... 2... 16 PIERCE
Special weather statement, Aug 14, 3:49 AM CDT, 1 hour 56 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHICAGO IL 3 45 AM CDT THU AUG 14 1987 ...HEAVY THUNDERSTORMS CONTINUE ACROSS PORTIONS OF THE CHICAGO AREA... AT 3 45 AM CDT... RADAR CONTINUED TO SHOW STRONG THUNDERSTORMS MOVING THROUGH THE EXTREME NORTH AND NORTHWEST SECTIONS OF THE CHICAGO AREA. THE HEAVIEST THUNDERSTORMS WERE IN A 20 MILE WIDE BAND THAT EXTENDED FROM LAKE COUNTY NEAR THE WISCONSIN STATE LINE... SOUTHWESTWARD THROUGH MCHENRY AND NORTHWEST KANE COUNTIES AND ON INTO NORTH CENTRAL ILLINOIS WEST OF DEKALB. THE STORMS WERE MOVING TO THE NORTHEAST AT 30 MPH. PERSONS IN LAKE...MCHENRY...AND NORTHWEST KANE COUNTIES IN ILLINOIS CAN EXPECT THUNDERSTORMS TO CONTINUE FOR AT LEAST ANOTHER HOUR WITH VERY HEAVY RAIN AND POSSIBLY SOME HAIL. THUNDERSTORMS THAT MOVED OVER NORTHERN DUPAGE AND NORTHWEST COOK COUNTIES THURSDAY EVENING AND EARLY THIS FRIDAY MORNING HAVE MOVED OUT OF THE AREA FOR THE TIME BEING. HOWEVER... RAINFALL AMOUNTS HAVE BEEN EXCESSIVE. AS OF 3 15 AM... OHARE AIRPORT OFFICIALLY RECORDED 5.89 INCHES OF RAIN. AT THIS TIME ONLY MINOR LOWLAND FLOODING AND URBAN STREET FLOODING HAS BEEN REPORTED. HOWEVER...THIS SITUATION IS BEING MONITORED CLOSELY FOR FLASH FLOOD POTENTIAL. MOTORISTS TRAVELING THROUGH DUPAGE AND NORTHWEST COOK COUNTIES EARLY THIS MORNING SHOULD USE CAUTION AS THEY MAY ENCOUNTER STANDING WATER ON ROADWAYS. MERZLOCK
Special weather statement, Aug 14, 5:27 AM CDT, 18 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHICAGO IL 5 20 AM CDT FRI AUG 14 1987 ...HEAVY THUNDERSTORMS CONTINUE ACROSS PORTIONS OF THE NORTH CENTRAL AND NORTHEAST ILLINOIS...INCLUDING THE NORTHWEST PORTION OF THE CHICAGO METROPOLITAN AREA.... AT 5 15 AM CDT THIS MORNING A BAND OF THUNDERSTORMS CONTAINING VERY HEAVY RAIN WAS LOCATED FROM NEAR WAUKEGAN SOUTHWESTWARD TO ELGIN TO MENDOTA IN EXTREME NORTHWEST LA SALLE COUNTY. FLOODING OF LOW LYING AREAS IS LIKELY ASSOCIATED WITH THIS BAND OF THUNDERSTORMS FROM NOW UNTIL 8 AM THIS MORNING OVER MUCH OF KANE...SOUTHEAST MCHENRY...LAKE AND EXTREME NORTHWEST COOK COUNTY. FLOODING OF LOW LYING AREAS HAS ALREADY OCCURRED OVER MUCH OF DUPAGE AND NORTHWEST COOK COUNTIES DURING THE NIGHT AS 3 TO 6 INCHES OF RAIN FELL FROM THUNDERSTORMS THAT MOVED THROUGH THAT AREA BETWEEN 9 PM...AND 3 AM THIS MORNING. 5.89 INCHES OF RAIN FELL AT OHARE BETWEEN 9 PM AND 3 AM THIS MORNING AT OHARE. THIS NEW BAND OF THUNDERSTORMS WILL HAVE TO BE WATCHED CLOSLY AS THIS BAND OF THUNDERSTORMS MAY BUILD SOUTHEAST INTO DUPAGE AND TBE REMAINDER OF NORTHWEST COOK COUNTY. MOTORISTS TRAVELING THROUGH THE WEST AND NORTHWEST SECTIONS OF THE CHICAGO METROPOLITAN AREAS SHOULD DRIVE WITH CAUTION AS THEY MAY ENCOUNTER STANDING WATER ON ROADWAYS. MORRISON
The office that day
Everything else NWS Chicago, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 14, 7:25 AM CDT | Flash Flood Warning | LOT | Cook, DuPage | 3 hr |
| Aug 14, 9:26 AM CDT | Flash Flood Warning | LOT | Cook, DuPage | 5 hr |
| Aug 14, 1:36 PM CDT | Flash Flood Warning | LOT | Cook, DuPage | 6 hr |
Nearby
Flash Flood Warnings in Illinois, 1987Every flash flood warning in 1987
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.