Alert archive / Illinois / Flash Flood Warnings in 1993
Flash Flood Warning 31, NWS Lincoln, IL
NWS Lincoln, IL issued this flash flood warning at Jul 23, 1993, 11:47 AM CDT for Knox County, Warren County, Illinois. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Jul 23, 1993, 11:47 AM CDT (16:47 UTC)
- Expired
- Jul 23, 1993, 3:45 PM CDT
- In force
- 4 hr
- Issued by
- NWS Lincoln, IL
- Area
- Whole counties
Counties Knox County, IL, Warren County, IL
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 4.8 hours before the alert went out and 442 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
- 1554 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 67 m²/s²
- 0-3 km storm-relative helicity
- 74 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 KPIA 231647 FFWPIA ILC095-187-232045- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE PEORIA IL 1147 AM CDT FRI JUL 23 1993 THE NATIONAL WEATHER SERVICE IN PEORIA HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 345 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN WEST CENTRAL ILLINOIS ...KNOX COUNTY...WARREN COUNTY AS OF 1140 AM...OBSERVERS ACROSS CENTRAL ILLINOIS HAVE REPORTED 2 TO 4 INCHES OF RAINFALL SINCE EARLY THIS MORNING. THIS HEAVY RAINFALL HAS CAUSED MANY STREETS TO FLOOD AS WELL AS BASEMENTS OF HOUSES ON LOWER GROUNDS. AT 1140 AM RADAR INDICATED SHOWERS AND THUNDERSTORMS WITH MODERATE TO HEAVY RAINFALL OVER MUCH OF THE REGION. THIS ADDITIONAL RAINFALL WILL AGGRAVATE THE FLOODING AND MAY CAUSE CREEKS AND SMALL RIVERS TO OVERFLOW. A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES...DIPS$...OR LOW SPOTS IF WATER COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.
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 23, 6:20 AM CDT, 5 hours 27 minutes before
ILZ005>007-231630- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PEORIA IL 620 AM CDT FRI JUL 23 1993 AT 615 AM CDT...THUNDERSTORMS AND RAINSHOWERS WERE INCREASING IN COVERAGE AND INTENSITY OVER WEST CENTRAL ILLINOIS...MOSTLY NORTH OF A LINE FROM FERRIS...24 MILES SOUTH OF BURLINGTON...IA...IN HANCOCK COUNTY...TO AVON...44 MILES WEST OF PEORIA...IN FULTON COUNTY...TO MINIER 23 MILES SOUTHEAST OF PEORIA...IN TAZWELL COUNTY. THESE THUNDERSTORMS ARE MOVING TO THE EAST AT 25 MPH AND ARE CAPABLE OF PRODUCING BRIEF GUSTY WINDS...VERY HEAVY RAINS...AND DEADLY LIGHTING. STAY TUNED TO NOAA WEATHER RADIO OR LOCAL TV AND RADIO STATIONS FOR FURTHER STATEMENTS AND POSSIBLE WARNINGS. WATERHOUSE
Special weather statement, Jul 23, 7:35 AM CDT, 4 hours 12 minutes before
ILZ005>007-231630- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PEORIA IL 735 AM CDT FRI JUL 23 1993 AT 730 AM CDT...THUNDERSTORMS AND RAINSHOWERS WERE CONTINUING TO MOVE THROUGH WEST CENTRAL ILLINOIS...MOSTLY NORTH OF A LINE FROM COLCHESTER... 33 MILES SOUTHEAST OF BURLINGTON...IA...IN MCDONOUGH COUNTY...TO LEWISTOWN ...35 MILES SOUTHWEST OF PEORIA...IN FULTON COUNTY...TO LE ROY...15 MILES EAST SOUTHEAST OF BLOOMINGTON...IN MCLEAN COUNTY. THESE THUNDERSTORMS ARE MOVING TO THE EAST AT 25 MPH AND ARE CAPABLE OF PRODUCING BRIEF GUSTY WINDS...VERY HEAVY RAINS...AND DEADLY LIGHTING. THESE STORMS CONTINUE TO MOVE OVER THE SAME AREAS OF ALREADY SATURATED GROUNDS. BE ALERT TO RAPIDLY RISING CREEKS AND STREAMS...FLOODING OVER ROADWAYS...AND STANDING WATER. WATERHOUSE
Special weather statement, Jul 23, 7:35 AM CDT, 4 hours 12 minutes before
ILZ005>007-231630- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PEORIA IL 735 AM CDT FRI JUL 23 1993 AT 730 AM CDT...THUNDERSTORMS AND RAINSHOWERS WERE CONTINUING TO MOVE THROUGH WEST CENTRAL ILLINOIS...MOSTLY NORTH OF A LINE FROM COLCHESTER... 33 MILES SOUTHEAST OF BURLINGTON...IA...IN MCDONOUGH COUNTY...TO LEWISTOWN ...35 MILES SOUTHWEST OF PEORIA...IN FULTON COUNTY...TO LE ROY...15 MILES EAST SOUTHEAST OF BLOOMINGTON...IN MCLEAN COUNTY. THESE THUNDERSTORMS ARE MOVING TO THE EAST AT 25 MPH AND ARE CAPABLE OF PRODUCING BRIEF GUSTY WINDS...VERY HEAVY RAINS...AND DEADLY LIGHTING. THESE STORMS CONTINUE TO MOVE OVER THE SAME AREAS OF ALREADY SATURATED GROUNDS. BE ALERT TO RAPIDLY RISING CREEKS AND STREAMS...FLOODING OVER ROADWAYS...AND STANDING WATER. WATERHOUSE
Special weather statement, Jul 23, 9:17 AM CDT, 2 hours 30 minutes before
ILZ009-010-231515- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD IL 9 15 AM CDT THU JUL 22 1993 ...SCATTERED THUNDERSTORMS ARE MOVING INTO CENTRAL ILLINOIS FROM THE NORTHWEST THIS MORNING... AT 9 05 AM CDT...A LARGE AREA OF THUNDERSTORMS WAS MOVING INTO CENTRAL ILLINOIS FROM THE NORTHWEST AND WERE NORTH OF A LINE FROM 25 MILES NORTHWEST OF SPRINGFIELD TO 15 MILES WEST OF CHAMPAIGN TO 25 MILES SOUTHWEST OF CHAMPAIGN. THIS AREA OF THUNDERSTORMS WAS MOVING EAST SOUTHEAST AT 25 MPH. DANGEROUS LIGHTNING AND HEAVY DOWNPOURS OF RAIN CAN BE EXPECTED WITH THE PASSAGE OF THESE STORMS. FLOODING OF SOME ROADWAYS AND SMALL STREAMS CAN ALSO BE EXPECTED. AUTEN
Special weather statement, Jul 23, 9:55 AM CDT, 1 hour 52 minutes before
ILZ009-010-231550- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD IL 9 50 AM CDT THU JUL 22 1993 ...THUNDERSTORMS WERE PRODUCING HEAVY RAINS OVER PARTS OF CENTRAL ILLINOIS... AT 9 45 AM CDT...THUNDERSTORMS WERE PRODUCING HEAVY RAINS FROM 15 TO 40 MILES NORTHEAST OF SPRINGFIELD ACROSS THE SOUTHEAST HALF OF LOGAN AND THE NORTHWEST PART OF DE WITT COUNTIES. THE HEAVY RAINS WILL BE MOVING OUT OF LOGAN COUNTY AND SPREADING ACROSS DE WITT AND NORTHERN MACON COUNTIES BETWEEN 10 AND 11 AM. THESE HEAVY RAINS WILL PRODUCE TEMPORARY FLOODING OF LOW AREAS... ROADWAYS...UNDERPASSES...DRAINAGE CREEKS THROUGH SOME SUBDIVISIONS AND BASEMENTS. THE HEAVY RAIN AREA WAS PART OF A LARGER AREA OF THUNDERSTORMS AND RAIN THAT MOVED SOUTHEAST FROM NORTH CENTRAL ILLINOIS THIS MORNING. THE SOUTHERN EDGE OF THE RAIN AREA WAS FROM JUST SOUTH OF HAVANA TO SPRINGFIELD TO 15 MILES NORTH OF DECATUR TO 10 MILES SOUTH OF CHAMPAIGN. THE AREA THUNDESTORMS WERE MOVING EAST SOUTHEAST AT 25 MPH AND SHOULD WEAKEN BY AROUND NOON OR 1 PM. PALMER
Special weather statement, Jul 23, 10:55 AM CDT, 52 minutes before
ILZ009-010-231650- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD IL 1055 AM CDT THU JUL 22 1993 ...THUNDERSTORMS CONTINUE TO PRODUCE HEAVY RAINS OVER PARTS OF CENTRAL ILLINOIS... AT 10 45 AM CDT...THUNDERSTORMS WERE PRODUCING HEAVY RAINS FROM DECATUR TO 15 MILES WEST OF CHAMPAIGN TO JUST SOUTHWEST OF CHAMPAIGN...IN EAST MACON TO SOUTWEST CHAMPAIGN COUNTIES. THE HEAVY RAINS WILL BE MOVING THROUGH SOUTHERN CHAMPAIGN COUNTY OVER THE NEXT HOUR AND INTO VERMILION COUNTY BY NOON. THESE HEAVY RAINS WILL PRODUCE TEMPORARY FLOODING OF LOW AREAS... ROADWAYS...UNDERPASSES...DRAINAGE CREEKS THROUGH SOME SUBDIVISIONS AND BASEMENTS. THE HEAVY RAIN AREA WAS PART OF A LARGER AREA OF THUNDERSTORMS AND RAIN THAT WERE IN AN AREA FROM KANKAKEE TO JUST SOUTH OF CHAMPAIGN TO DECATUR TO JUST EAST OF BLOOMINGTON. OTHER PATCHY SHOWERS WERE LOCATED IN AN AREA BETWEEN PEORIA TO BLOOMINGTON TO SPRINGFIELD TO LEWISTOWN. BOTH AREAS OF SHOWERS AND THUNDERSTORM WERE MOVING TO THE EAST SOUTHEAST AT 25 MPH AND WEAKENING. THERE WAS ALSO A RAIN FREE AREA FROM WEST OF SPRINGFIELD TO QUINCY. AUTEN
The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 23, 8:47 AM CDT | Flash Flood Warning | ILX | Fulton, McLean, Peoria, Tazewell, Woodford | 3 hr |
| Jul 23, 8:47 AM CDT | Flash Flood Warning | ILX | Knox | 3 hr |
| Jul 23, 2:29 PM CDT | Severe Thunderstorm Warning | ILX | Mason | 61 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.