Alert archive / Illinois / Flash Flood Warnings in 1993
Flash Flood Warning 27, NWS Lincoln, IL
NWS Lincoln, IL issued this flash flood warning at Jul 18, 1993, 7:31 PM CDT for DeKalb County, Illinois. It was in force for 119 min.
The area
The counties it named.
The facts
- Issued
- Jul 18, 1993, 7:31 PM CDT (00:31 UTC)
- Expired
- Jul 18, 1993, 9:30 PM CDT
- In force
- 119 min
- Issued by
- NWS Lincoln, IL
- Area
- Whole counties
County DeKalb County, IL
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 00:00Z, 0.5 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 547 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- -25 m²/s²
- 0-3 km storm-relative helicity
- 15 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KRFD 190031
FFWRFD
ILC037-190230-
BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ROCKFORD IL
731 PM CDT SUN JUL 18 1993
THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING
EFFECTIVE UNTIL 930 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY
IN THE NORTH CENTRAL PART OF ILLINOIS
DEKALB
AT 7 25 PM CDT...THUNDERSTORMS WITH HEAVY RAINFALL WERE MOVING INTO
DE KALB COUNTY FROM OGLE COUNTY. WITH STREAMS AND CREEKS REMAINING
HIGH...RENEWED DANGEROUS FLOODING IS ONCE AGAIN POSSIBLE.
SOME COMMUNITIES THAT ARE IN OR NEAR THE FLASH FLOOD AREA...
DE KALB...SYCAMORE AND GENOA.
IF YOU ARE IN LOW LYING...FLOOD PRONE AREA...MOVE TO HIGHER GROUND!
IF CAMPING...WATCH FOR RAPIDLY RISING WATER THAT MAY ENDANGER YOUR
CAMPSITE! DO NOT CROSS HIGHWAYS THAT ARE COVERED BY WATER...IT MAY
BE MUCH DEEPER THAN YOU THINK! REMEMBER...FLASH FLOODS HAPPEN VERY
RAPIDLY...BE ALERT!
THIS EXTENRDS THE FLASH FLOOD WARNING ALREADY IN EFFECT FOR
DE KALB COUNTY.
SANDERSWhat 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, 5:28 PM CDT, 2 hours 3 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
Special weather statement, Jul 18, 6:04 PM CDT, 1 hour 27 minutes before
ILZ009-10-182345- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD IL 600 PM CDT SUN JUL 18 1993 ...SCATTERED SHOWERS AND THUNDERSTORMS CONTINUED TO MOVE OVER CENTRAL AND EAST CENTRAL ILLINOIS... AT 5 57 PM CDT...RADAR INDICATED AN AREA OF SHOWERS AND THUNDERSTORMS ACROSS MUCH OF CENTRAL ILLINOIS. THE STRONGEST STORMS WERE LOCATED FROM 10 MILES SOUTH OF BLOOMINGTON TO 30 MILES NORTHEAST OF SPRING/ FIELD. OTHER STRONG STORMS WERE IN WESTERN MACOUPIN COUNTY BETWEEN SPRINGFIELD AND ST. LOUIS AND IN MOULTRIE AND SHELBY COUNTIES BETWEEN SULIVAN AND STEWARD. THE SHOWERS AND STORMS WERE MOVING NORTHEAST AT 35 MPH. VERY HEAVY RAINFALL...DANGEROUS LIGHTNING AND GUSTY WINDS MAY ACCOMPANY THE STRONG STORMS. 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. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 10 PM CDT FOR MUCH OF CENTRAL AND EAST CENTRAL ILLINOIS. SKIPPER
Special weather statement, Jul 18, 6:47 PM CDT, 44 minutes before
ILZ009-10-190045- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD IL 647 PM CDT SUN JUL 18 1993 ...SCATTERED SHOWERS AND THUNDERSTORMS CONTINUED TO MOVE OVER CENTRAL AND EAST CENTRAL ILLINOIS... AT 6 40 PM CDT...RADAR INDICATED AN AREA OF SHOWERS AND THUNDERSTORMS ACROSS MUCH OF CENTRAL ILLINOIS. THE STRONGEST STORMS WERE LOCATED FROM MIDWAY BETWEEN BLOOMINGTON AND CHAMPAIGN THROUGH DECATUR TO 20 MILES WEST OF VANDALIA. OTHER STRONG STORMS WERE BETWEEN CHAMPAIGN AND MATTOON IN WESTERN DOUGLAS AND COLES COUNTIES. ALSO...SCATTERED STRONG STORMS WERE FROM 25 MILES SOUTHEAST OF SPRINGFIELD TO 20 SOUTH OF CARLINVILLE. THE SHOWERS AND THUNDERSTORMS WERE MOVING NORTHEAST AT 35 TO 40 MPH. VERY HEAVY RAINFALL...DANGEROUS LIGHTNING AND GUSTY WINDS MAY ACCOMPANY THE STRONG STORMS. WHEN THUNDERSTORMS ARE OCCURRING...MOVE INSIDE A STRONG BUILDING. DO NOT STAND NEAR WINDOWS. DO NOT USE TELEPHONES UNLESS IN AN EMERGENCY UNTpIL THE STORMS HAVE PASSED. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 10 PM CDT FOR MUCH OF CENTRAL AND EAST CENTRAL ILLINOIS. PEARSON
Special weather statement, Jul 18, 6:55 PM CDT, 36 minutes before
ILZ005>007-190100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PEORIA IL 655 PM CDT SUN JUL 18 1993 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR MCLEAN COUNTY... ...FLASH FLOOD WATCH FOR ALL OF WEST CENTRAL ILLINOIS... AT 655 PM CDT... SHOWERS AND THUNDERSTORMS CONTINUED MAINLY ALONG AND EAST OF THE ILLINOIS RIVER. THE HEVIEST PRECIPITATION WAS OCCURRING OVER WESTERN MASON COUNTY...NEAR HAVANNA...35 MILES SOUTHWEST OF PEORIA. MOVEMENT CONTINUED TO THE EAST NORTHEAST AT 35 MPH. SOME AREAS RECIEVED LOCALLY HEAVY RAINFALL THROUGH THE AFTERNOON AND ADDITIONAL RAINFALL IN THOSE AREAS COULD CAUSE FLOODING. PERSONS SHOULD REMAIN ALERT TO CHANGING WEATHER CONDITIONS. DO NOT TRY TO CROSS WATER COVERED ROADWAYS. STAY CLEAR OF SWOLLEN STREAMS AND RIVERS. STAY TUNED TO NOAA WEATHER RADIO OR LOCAL RADIO AND TELEVISION STATIONS FOR FURTHER STATEMENTS AND POSSIBLE WARNINGS. BREESER
Special weather statement, Jul 18, 6:55 PM CDT, 36 minutes before
ILZ005>007-190100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PEORIA IL 655 PM CDT SUN JUL 18 1993 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR MCLEAN COUNTY... ...FLASH FLOOD WATCH FOR ALL OF WEST CENTRAL ILLINOIS... AT 655 PM CDT... SHOWERS AND THUNDERSTORMS CONTINUED MAINLY ALONG AND EAST OF THE ILLINOIS RIVER. THE HEAVIEST PRECIPITATION WAS OCCURRING OVER WESTERN MASON COUNTY...NEAR HAVANNA...35 MILES SOUTHWEST OF PEORIA. MOVEMENT CONTINUED TO THE EAST NORTHEAST AT 35 MPH. SOME AREAS RECIEVED LOCALLY HEAVY RAINFALL THROUGH THE AFTERNOON AND ADDITIONAL RAINFALL IN THOSE AREAS COULD CAUSE FLOODING. PERSONS SHOULD REMAIN ALERT TO CHANGING WEATHER CONDITIONS. DO NOT TRY TO CROSS WATER COVERED ROADWAYS. STAY CLEAR OF SWOLLEN STREAMS AND RIVERS. STAY TUNED TO NOAA WEATHER RADIO OR LOCAL RADIO AND TELEVISION STATIONS FOR FURTHER STATEMENTS AND POSSIBLE WARNINGS. BREESER
Special weather statement, Jul 18, 7:00 PM CDT, 31 minutes before
ILZ005>007-190100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PEORIA IL 655 PM CDT SUN JUL 18 1993 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR MCLEAN COUNTY... ...FLASH FLOOD WATCH FOR ALL OF WEST CENTRAL ILLINOIS... AT 655 PM CDT... SHOWERS AND THUNDERSTORMS CONTINUED MAINLY ALONG AND EAST OF THE ILLINOIS RIVER. THE HEAVIEST PRECIPITATION WAS OCCURRING OVER WESTERN MASON COUNTY...NEAR HAVANNA...35 MILES SOUTHWEST OF PEORIA. MOVEMENT CONTINUED TO THE EAST NORTHEAST AT 35 MPH. SOME AREAS RECIEVED LOCALLY HEAVY RAINFALL THROUGH THE AFTERNOON AND ADDITIONAL RAINFALL IN THOSE AREAS COULD CAUSE FLOODING. PERSONS SHOULD REMAIN ALERT TO CHANGING WEATHER CONDITIONS. DO NOT TRY TO CROSS WATER COVERED ROADWAYS. STAY CLEAR OF SWOLLEN STREAMS AND RIVERS. STAY TUNED TO NOAA WEATHER RADIO OR LOCAL RADIO AND TELEVISION STATIONS FOR FURTHER STATEMENTS AND POSSIBLE WARNINGS. BREESER
The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 18, 7:11 PM CDT | Severe Thunderstorm Warning | ILX | Champaign | 34 min |
| Jul 18, 7:47 PM CDT | Tornado Warning | ILX | Shelby | 23 min |
| Jul 18, 9:55 PM CDT | Flash Flood Warning | ILX | DeKalb | 3 hr |
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.