Alert archive / Illinois / Flash Flood Warnings in 1993
Flash Flood Warning 26, NWS Lincoln, IL
NWS Lincoln, IL issued this flash flood warning at Jul 18, 1993, 5:20 PM CDT for DeKalb County, Illinois. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- Jul 18, 1993, 5:20 PM CDT (22:20 UTC)
- Expired
- Jul 18, 1993, 7:30 PM CDT
- In force
- 2 hr
- Issued by
- NWS Lincoln, IL
- Area
- Whole counties
County DeKalb County, IL
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 10.3 hours before the alert went out and 293 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
- 16 J/kg
- Mixed-layer CIN
- -165 J/kg
- Mixed-layer LCL
- 560 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 138 m²/s²
- 0-3 km storm-relative helicity
- 203 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KCHI 182220 FFWCHI ILC037-190030- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE ROCKFORD IL ISSUED BY NATIONAL WEATHER SERVICE CHICAGO 520 PM CDT SUN JUL 18 1993 THE NATIONAL WEATHER SERVICE IN ROCKFORD HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 730 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTH CENTRAL ILLINOIS ...DEKALB COUNTY... AT 500 PM CDT THE DEKALB COUNTY SHERIFF/S OFFICE REPORTED MANY STREETS AND HIGHWAYS IN DEKALB COUNTY WERE FLOODED WITH UP TO 4 FEET OF WATER...AFTER HEAVY RAINFALL IN EXCESS OF 3 INCHES THIS AFTERNOON. NORTHERN ILLINOIS UNIVERSITY ALSO REPORTED STREET FLOODING. STEPHENS CREEK WAS REPORTED TO BE FLOWING OUT OF ITS BANKS. SOME COMMUNITIES AFFECTED BY THIS FLOODING INCLUDE...DEKALB... WATERMAN...HINKLEY AND SYCAMORE. A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS IMMINENT. MOST FLASH FLOOD FEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS FBRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY. IF FLOODING IS OBSERVED...TAKE SAFETY PRECAUTIONS AND MOVE TO HIGHER GROUND. ATTN ISP 2 KAHN
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, Jul 18, 2:50 PM CDT, 2 hours 30 minutes before
ILZ005>007-182100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PEORIA IL 250 PM CDT SUN JUL 18 1993 ...STRONG THUNDERSTORMS MOVING THROUGH CENTRAL ILLINOIS... A LINE OF STRONG THUNDERSTORMS EXTENDED FROM ABOUT MENDOTA...30 MILES WEST-NORTHWEST OF MARSEILLES...TO PEORIA AT 245 PM. THE STRONGEST STORM WAS NEAR BRADFORD...35 MILES NORTH OF PEORIA. THESE STORMS WILL PRODUCE VERY HEAVY RAIN...WIND GUSTS OF 40 MPH OR GREATER AND DEADLY LIGHTNING. THE STORMS WERE MOVING EAST-NORTHEAST AROUND 35 MPH AND ARE EXPECTED TO BE ALONG AND JUST EAST OF THE ILLINOIS RIVER FROM LASALLE TO ABOUT METAMORA AROUND 330 PM. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR PARTS OF CENTRAL ILLINOIS UNTIL 700 PM. HEAVY RAIN IS EXPECTED WITH THE THUNDERSTORMS THE NEXT 12 HOURS SO A FLASH FLOOD WATCH IS IN EFFECT FOR ALL OF WESTERN AND CENTRAL ILLINOIS THIS AFTERNOON AND TONIGHT. STAY TUNED TO NOAA WEATHER RADIO...OR LOCAL RADIO AND TV...FOR LATER STATEMENTS AND POSSIBLE WARNINGS. MILLER v~j.8"8" + 6WWUS 45W 6WWUS (7q4WSUS *6WWUSb 0XWSUS& y6WWUS 7`WWUS: 8ELOW 1 N\6#FXUS OFNDIT IMPNG FROM W WIYHWWNZJ6 S6WWUS `3U^WSUS RFPUS;96WWUSL H S. FPUS*6WWUSR H 200 UTC N:6j \OUTHEASTH.ONDAo6WWUS* NCE q6WWUSr tt6WWUS $LE #FXUS S.UTHEAST |-FPAK RAINw6 WUUS o WUUS ]96WWUS| XWOUS(J j&6WWUS$ @ (|m)FPUSYN6WWUSx l6WWUS |I7`WWUS MWWUS G>6WWUSn FAUS
Special weather statement, Jul 18, 2:54 PM CDT, 2 hours 26 minutes before
ILZ005>007-182100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PEORIA IL 250 PM CDT SUN JUL 18 1993 ...STRONG THUNDERSTORMS MOVING THROUGH CENTRAL ILLINOIS... A LINE OF STRONG THUNDERSTORMS EXTENDED FROM ABOUT MENDOTA...30 MILES WEST-NORTHWEST OF MARSEILLES...TO PEORIA AT 245 PM. THE STRONGEST STORM WAS NEAR BRADFORD...35 MILES NORTH OF PEORIA. THESE STORMS WILL PRODUCE VERY HEAVY RAIN...WIND GUSTS OF 40 MPH OR GREATER AND DEADLY LIGHTNING. THE STORMS WERE MOVING EAST-NORTHEAST AROUND 35 MPH AND ARE EXPECTED TO BE ALONG AND JUST EAST OF THE ILLINOIS RIVER FROM LASALLE TO ABOUT METAMORA AROUND 330 PM. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR PARTS OF CENTRAL ILLINOIS UNTIL 700 PM. HEAVY RAIN IS EXPECTED WITH THE THUNDERSTORMS THE NEXT 12 HOURS SO A FLASH FLOOD WATCH IS IN EFFECT FOR ALL OF WESTERN AND CENTRAL ILLINOIS THIS AFTERNOON AND TONIGHT. STAY TUNED TO NOAA WEATHER RADIO...OR LOCAL RADIO AND TV...FOR LATER STATEMENTS AND POSSIBLE WARNINGS. MILLER
Special weather statement, Jul 18, 3:47 PM CDT, 1 hour 33 minutes before
ILZ009-10-182115- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD IL 3 45 PM CDT SUN JUL 18 1993 ...SCATTERED SHOWERS AND THUNDERSTORMS CONTINUED TO MOVE OVER CENTRAL AND EAST CENTRAL ILLINOIS... AT 3 40 PM CDT...RADAR INDICATED A LINE OF THUNDERSTORMS THAT EXTENDED FROM 20 MILES NORTHWEST OF SPRINGFIELD...5 MILES WEST OF PETERSBURG TO 35 MILES NORTHWEST OF ST LOUIS MISSOURI. ALSO...SCATTERED SHOWERS HAD REDEVELOPED 20 MILES SOUTH OF CHAMPAIGN. THESE SHOWERS AND THUNDERSTORMS WERE MOVING EAST AT 20 MPH. VERY HEAVY RAINFALL...DANGEROUS LIGHTNING AND GUSTY WINDS MAY ACCOMPANY THIS STORM. WHEN THUNDERSTORMS ARE OCCURRING...MOVE INSIDE A STRONG BUILDING. DO NOT STAND NEAR WINDOWS. DO NOT USE TELEPHONES UNLESS IN AN EMERGENCY. STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER UPDATES. PEARSON
Special weather statement, Jul 18, 4:07 PM CDT, 1 hour 13 minutes before
ILZ005>007-182200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PEORIA IL 410 PM CDT SUN JUL 18 1993 ...STRONG THUNDERSTORMS MOVING THROUGH CENTRAL ILLINOIS... THUNDERSTORMS...WITH PERIODS OF HEAVY RAIN...BRIEF GUSTY WINDS... DEADLY LIGHTNING AND POSSIBLY SOME HAIL...WERE SCATTERED THROUGHOUT MUCH OF WESTERN AND CENTRAL ILLINOIS. A BATCH OF THESE STRONG THUNDERSTORMS WILL BE MOVING THROUGH THE PEORIA AREA...WHERE THE HEART OF ILLINOIS FAIR IS TAKING PLACE...BETWEEN NOW AND 500 PM. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR PARTS OF CENTRAL ILLINOIS UNTIL 700 PM. HEAVY RAIN IS EXPECTED WITH THE THUNDERSTORMS THE NEXT 12 HOURS SO A FLASH FLOOD WATCH IS IN EFFECT FOR ALL OF WESTERN AND CENTRAL ILLINOIS THIS EVENING AND TONIGHT. STAY TUNED TO NOAA WEATHER RADIO...OR LOCAL RADIO AND TV...FOR LATER STATEMENTS AND POSSIBLE WARNINGS. MILLER
Special weather statement, Jul 18, 4:10 PM CDT, 1 hour 10 minutes before
ILZ005>007-182200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PEORIA IL 410 PM CDT SUN JUL 18 1993 ...STRONG THUNDERSTORMS MOVING THROUGH CENTRAL ILLINOIS... THUNDERSTORMS...WITH PERIODS OF HEAVY RAIN...BRIEF GUSTY WINDS... DEADLY LIGHTNING AND POSSIBLY SOME HAIL...WERE SCATTERED THROUGHOUT MUCH OF WESTERN AND CENTRAL ILLINOIS. A BATCH OF THESE STRONG THUNDERSTORMS WILL BE MOVING THROUGH THE PEORIA AREA...WHERE THE HEART OF ILLINOIS FAIR IS TAKING PLACE...BETWEEN NOW AND 500 PM. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR PARTS OF CENTRAL ILLINOIS
Special weather statement, Jul 18, 5:15 PM CDT, 5 minutes before
ILZ005>007-182300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PEORIA IL 515 PM CDT SUN JUL 18 1993 ...SEVERE THUNDERSTORM WATCH CANCELLED FOR MOST OF WEST CENTRAL ILLINOIS... ...NEW SEVERE THUNDERSTORM WATCH ISSUED FOR MCLEAN COUNTY... AT 510 PM CDT...THE SEVERE THUNDERSTORM WATCH THAT WAS IN EFFECT FOR BUREAU...PUTNAM...KNOX...STARK...MARSHALL...PEORIA AND WOODFORD COUNTIES HAS BEEN CANCELLED. A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR MCLEAN COUNTY AND WILL REMAIN IN EFFECT UNTIL 10 PM CDT. LATE THIS AFTERNOON...SHOWERS AND THUNDERSTORMS CONTINUE TO DEVELOP ACROSS THE REGION. OVER WESTERN ILLINOIS...RAINFALL WAS OCCURRING ACROSS HANCOCK ...MCDONOUGH AND SCHUYLER COUNTIES WITH THE HEAVIEST PRECIPITAION NEAR PLYMOUTH AND AUGUSTA IN EASTERN HANCOCK COUNTY. ALSO...THE BACK EDGE OF A LINE OF SHOWERS AND THUNDERSTORMS WAS ALONG THE ILLINOIS RIVER WITH THE HEAVIEST RAINFALL OVER CENTRAL WOODFORD COUNTY. MOVEMENT CONTINUED TO BE TO THE EAST NORTHEAST AT 35 MPH. A FLASH FLOOD WATCH REMAINS IN EFFECT FOR ALL OF WEST CENTRAL ILLINOIS. PERSONS SHOULD REMAIN ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS. BE PREPARED TO TAKE SHELTER IF THREATENING WEATHER APPROCHES. DO NOT ATTEMPT TO CROSS WATER COVERED ROADWAYS...STAY CLEAR OF SWOLLEN RIVERS AND STREAMS. STAY TUNED TO NOAA WEATHER RADIO OR LOCAL RADIO AND TELEVISION FOR LATER STATEMENTS OR POSSBLE WARNINGS. BREESER
The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 17, 10:34 PM CDT | Flash Flood Warning | ILX | Carroll | 3 hr |
| Jul 18, 3:13 PM CDT | Severe Thunderstorm Warning | ILX | Marshall | 62 min |
| Jul 18, 4:39 PM CDT | Severe Thunderstorm Warning | ILX | Menard | 56 min |
| Jul 18, 4:52 PM CDT | Severe Thunderstorm Warning | ILX | Edgar | 38 min |
| Jul 18, 6:32 PM CDT | Severe Thunderstorm Warning | ILX | Shelby | 21 min |
| Jul 18, 6:32 PM CDT | Severe Thunderstorm Warning | ILX | Coles | 28 min |
Nearby
Flash Flood Warnings in Illinois, 1993Every flash flood warning in 1993
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.