Alert archive / Illinois / Flash Flood Warnings in 1993

Flash Flood Warning 17, NWS Lincoln, IL

July 1, 1993Fulton County, Mason County, Schuyler County, Illinois

NWS Lincoln, IL issued this flash flood warning at Jul 1, 1993, 1:49 AM CDT for Fulton County, Mason County, Schuyler County, Illinois. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Jul 1, 1993, 1:49 AM CDT (06:49 UTC)
Expired
Jul 1, 1993, 5:45 AM CDT
In force
4 hr
Issued by
NWS Lincoln, IL
Area
Whole counties

Counties Fulton County, IL, Mason County, IL, Schuyler County, IL

The nearest sounding before it

Paducah/Barkley, KY (KPAH), launched 00:00Z, 6.8 hours before the alert went out and 382 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.

Skew-T log-pSkew-T log-p diagram, Paducah/Barkley, KY at 00:00Z on 1993-07-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3576 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Paducah/Barkley, KY at 00:00Z on 1993-07-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
3576 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
1074 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
50 m²/s²
Significant tornado parameter
1.0
Supercell composite
7.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KPIA 010650
FFWPIA
ILC125-057-169-011045-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PEORIA IL
149 AM CDT THU JUL 1 1993
 
THE NATIONAL WEATHER SERVICE IN PEORIA HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  545 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN CENTRAL ILLINOIS
 
   ...MASON COUNTY
 
IN WEST CENTRAL ILLINOIS
 
   ...SOUTHERN FULTON COUNTY...SCHUYLER COUNTY
 
AT 145 AM...AN AREA OF SLOW MOVING THUNDERSTORMS STRETCHED ACROSS
SOUTHERN FULTON AND ALL OF SCHUYLER AND MASON COUNTIES. REPORTS OF
FLOODING WERE RECEIVED FROM RUSHVILLE IN SCHUYLER COUNTY. THESE STORMS
WILL CONTINUE TO MOVE ACROSS THE SAME AREAS FOR THE NEXT SEVERAL HOURS.
 
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FLOODS AND FLASH FLOODS.  IF FLASH FLOODING IS
OBSERVED...ACT QUICKLY.  MOVE UP TO ESCAPE FLOOD WATERS.  DO
NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
 
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.
 
MOGGED

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, Jun 30, 11:10 PM CDT, 2 hours 39 minutes before
ILZ006-009-0100515

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
1110 PM CDT WED JUN 30 1993

...SEVERE THUNDERSTORMS POSSIBLE IN PARTS OF WEST CENTRAL ILLINOIS...

A SEVERE THUNDERSTORM WATCH HAS BEEN POSTED FOR PARTS OF WESTERN AND
CENTRAL ILLINOIS ALONG AND SOUTH OF A LINE FROM 20 MILES NORTH OF
QUINCY TO 40 MILES NORTHEAST OF SPRINGFIELD. THIS INCLUDES SCHUYLER
AND MASON COUNTIES IN WEST CENTRAL ILLINOIS.

AT 1105 PM... STRONG THUNDERSTORMS WERE NEAR QUINCY AND SUTTER... 20 MILES
NORTH OF QUINCY IN HANCOCK COUNTY. THESE STORMS WERE MOVING SLIGHTLY SOUTH OF
EAST AT 25 MPH. THE STORM NEAR QUINCY...WHICH WAS THE MOST INTENSE WILL NOT
AFFECT SCHUYLER OR MASON COUNTY HOWEVER CONDITIONS REMAIN FAVORABLE FOR SEVERE
THUNDERSTORM DEVELOPMENT.

DAMAGING WINDS...VERY HEAVY RAIN AND DEADLY LIGHTNING ARE POSSIBLE WITH THESE
STORMS.

MOGGED
Special weather statement, Jun 30, 11:18 PM CDT, 2 hours 31 minutes before
ILZ006-009-0100515

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
1110 PM CDT WED JUN 30 1993

...SEVERE THUNDERSTORMS POSSIBLE IN PARTS OF WEST CENTRAL ILLINOIS...

A SEVERE THUNDERSTORM WATCH HAS BEEN POSTED FOR PARTS OF WESTERN AND
CENTRAL ILLINOIS ALONG AND SOUTH OF A LINE FROM 20 MILES NORTH OF
QUINCY TO 40 MILES NORTHEAST OF SPRINGFIELD. THIS INCLUDES SCHUYLER
AND MASON COUNTIES IN WEST CENTRAL ILLINOIS.

AT 1105 PM... STRONG THUNDERSTORMS WERE NEAR QUINCY AND SUTTER... 20 MILES
NORTH OF QUINCY IN HANCOCK COUNTY. THESE STORMS WERE MOVING SLIGHTLY SOUTH OF
EAST AT 25 MPH. THE STORM NEAR QUINCY...WHICH WAS THE MOST INTENSE WILL NOT
AFFECT SCHUYLER OR MASON COUNTY HOWEVER CONDITIONS REMAIN FAVORABLE FOR SEVERE
THUNDERSTORM DEVELOPMENT.

DAMAGING WINDS...VERY HEAVY RAIN AND DEADLY LIGHTNING ARE POSSIBLE WITH THESE
STORMS.

MOGGED
Special weather statement, Jun 30, 11:45 PM CDT, 2 hours 4 minutes before
ILZ009-010545-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD IL
1146 PM CDT WED JUN 30 1993

...SEVERE THUNDERSTORM WATCH UNTIL 3 AM CDT...
...FLASH FLOOD WATCH TONIGHT...

AT 1145 PM CDT...THE LEADING EDGE OF A LARGE AREA OF SHOWERS AND
THUNDERSTORMS WAS MOVING INTO CENTRAL ILLINOIS...AND EXTENDED FROM 40
MILES NORTH OF PEORIA...TO 25 MILES NORTHWEST OF SPRINGFIELD...TO 45
MILES SOUTHWEST OF SPRINGFIELD.

SEVERAL STRONG THUNDERSTORMS WERE DETETCTED OVER WEST CENTRAL ILLINOIS
...WEST OF A LINE FROM ABOUT 30 MILES NORTH OF QUINCY...TO 45 MILES
SOUTHEAST OF QUINCY.  THE STORMS AND SHOWERS WERE MOVING EAST AT
ABOUT 25 MPH.

STRONG THUNDERSTORMS SHOULD MOVE INTO WESTERN CASS AND MORGAN COUNTIES
IN CENTRAL ILLINOIS BETWEEN 1200 AND 1230 AM.  IN ADDITION TO DEADLY
LIGHTNING...VERY HEAVY RAIN...STRONG GUSTY WINDS AND POSSIBLY SOME
SMALL HAIL SHOULD BE EXPECTED WITH THESE STORMS.

THESE STORMS COULD BECOME SEVERE.  STAY TUNED TO YOUR FAVORITE
WEATHER INFORMATION SOURCE FOR ADDITIONAL STATEMENTS AND POSSIBLE
WARNINGS.  BE PREPARED TO TAKE COVER IF SEVERE WEATHER DEVELOPS.

MCCOY
Special weather statement, Jul 1, 12:30 AM CDT, 1 hour 19 minutes before
ILZ006-007-009-010630-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
1230 AM CDT THU JUL 1 1993

...A SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 3 AM FOR SCHUYLER AND MASON
COUNTIES...

AT 1225 AM...WEATHER RADAR INDICATED A LINE OF STRONG THUNDERSTORMS EXTENDING
FROM THE NORTHWEST CORNER OF SCHUYLER COUNTY SOUTHEAST THROUGH RUSHVILLE TO
20 MILE WEST OF SPRINGFIELD. THESE STORMS WERE MOVING NORTHEAST AT 25 MPH.
THESE STORMS WILL EXIT SCHUYLER COUNTY AND MOVE INTO FULTON AND MASON COUNTIES
AROUND 1 AM. CONDITIONS ARE FAVORABLE FOR THESE STORMS TO BECOME SEVERE
PRODUCING DAMAGING WINDS...HAIL...FREQUENT LIGHTNING AND HEAVY RAINS.

A FLASH FLOOD WATCH IS ALSO IN EFFECT FOR MUCH OF WEST CENTRAL ILLINOIS. THE
THUNDERSTORMS IN SCHUYLER COUNTY WERE THE SOUTHERN EDGE OF A LARGE AREA OF
SHOWERS AND THUNDERSTORMS WHICH EXTENDED NORTHWEST ACROSS MUCH OF WESTERN
ILLINOIS. ALREADY SATURATED GROUND FROM RECENT RAINS WITH NEW RAIN MOVING
INTO THE AREA WILL PRODUCE FLOODING ACROSS ROADWAYS AND MANY CREEKS AND
RIVERS ALREADY HIGH FROM EARLIER RAINS.

PEOPLE IN WESTERN AND CENTRAL ILLINOIS ARE ADVISED TO REMAIN ALERT
FOR FLASH FLOODING OF CREEKS...RIVERS AND ROADWAYS TONIGHT. DO NOT
TRY TO CROSS A FLOODED ROADWAY IN YOUR AUTOMOBILE SINCE IT IS ESPECIALLY
DIFFICULT TO JUDGE THE DEPTH OF THE WATER AT NIGHT. STAY AWAY FROM
RAPIDLY RISING CREEKS AND RIVERS BECAUSE THE SWIFT CURRENT COULD SWEEP
YOU DOWNSTREAM.

MOGGED
Special weather statement, Jul 1, 12:45 AM CDT, 1 hour 4 minutes before
ILZ006-007-009-010630-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
1230 AM CDT THU JUL 1 1993

...A SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 3 AM FOR SCHUYLER AND MASON
COUNTIES...

AT 1225 AM...WEATHER RADAR INDICATED A LINE OF STRONG THUNDERSTORMS EXTENDING
FROM THE NORTHWEST CORNER OF SCHUYLER COUNTY SOUTHEAST THROUGH RUSHVILLE TO
20 MILE WEST OF SPRINGFIELD. THESE STORMS WERE MOVING NORTHEAST AT 25 MPH.
THESE STORMS WILL EXIT SCHUYLER COUNTY AND MOVE INTO FULTON AND MASON COUNTIES
AROUND 1 AM. CONDITIONS ARE FAVORABLE FOR THESE STORMS TO BECOME SEVERE
PRODUCING DAMAGING WINDS...HAIL...FREQUENT LIGHTNING AND HEAVY RAINS.

A FLASH FLOOD WATCH IS ALSO IN EFFECT FOR MUCH OF WEST CENTRAL ILLINOIS. THE
THUNDERSTORMS IN SCHUYLER COUNTY WERE THE SOUTHERN EDGE OF A LARGE AREA OF
SHOWERS AND THUNDERSTORMS WHICH EXTENDED NORTHWEST ACROSS MUCH OF WESTERN
ILLINOIS. ALREADY SATURATED GROUND FROM RECENT RAINS WITH NEW RAIN MOVING
INTO THE AREA WILL PRODUCE FLOODING ACROSS ROADWAYS AND MANY CREEKS AND
RIVERS ALREADY HIGH FROM EARLIER RAINS.

PEOPLE IN WESTERN AND CENTRAL ILLINOIS ARE ADVISED TO REMAIN ALERT
FOR FLASH FLOODING OF CREEKS...RIVERS AND ROADWAYS TONIGHT. DO NOT
TRY TO CROSS A FLOODED ROADWAY IN YOUR AUTOMOBILE SINCE IT IS ESPECIALLY
DIFFICULT TO JUDGE THE DEPTH OF THE WATER AT NIGHT. STAY AWAY FROM
RAPIDLY RISING CREEKS AND RIVERS BECAUSE THE SWIFT CURRENT COULD SWEEP
YOU DOWNSTREAM.

MOGGED
Special weather statement, Jul 1, 1:22 AM CDT, 27 minutes before
ILZ009-010-010715-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD IL
1 22 AM CDT THU JUL 1 1993

...SEVERE THUNDERSTORM WATCH UNTIL 3 AM CDT FOR CENTRAL ILLINOIS...
...FLASH FLOOD WATCH TONIGHT FOR CENTRAL AND EAST CENTRAL ILLINOIS...

AT 1 20 AM CDT...THUNDERSTORMS AND SHOWERS WERE SCATTERED ACROSS
CENTRAL ILLINOIS...AND HAD BEGUN TO MOVE INTO EAST CENTRAL ILLINOIS.
THE AREA OF STORMS AND SHOWERS WAS ALONG AND WEST OF A LINE FROM 45
MILES NORTH OF PEORIA...TO DECATUR...TO VANDALIA.

THE STRONGEST STORMS WERE OVER CENTRAL ILLINOIS...IN A BROKEN LINE
EXTENDING FROM 35 MILES NORTHWEST OF SPRINGFIELD NEAR VIRGINIA...TO
10 MILES SOUTH OF SPRINGFIELD NEAR CHATHAM.  THE STORMS WERE MOVING
EAST AT 25 MPH.

IN ADDITION TO DEADLY LIGHTNING...THE STRONGER STORMS WILL LIKELY
CONTAIN HEAVY RAIN...STRONG GUSTY WINDS...AND SOME SMALL HAIL.
MOTORISTS SHOULD EXPECT PONDING OF WATER AND TEMPORARY FLOODING OF
SOME ROADWAYS WITH THE xHEAVIER STORMS.

THESE STORMS COULD BECOME SEVERE. STAY TUNED TO YOUR FAVORITE
WEATHER INFORMATION SOURCE FOR ADDITIONAL STATEMENTS AND POSSIBLE
WARNINGS.  BE PREPARED TO TAKE COVER IF SEVERE WEATHER DEVELOPS.

MCCOY

The office that day

Everything else NWS Lincoln, IL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 1, 12:18 AM CDTSevere Thunderstorm WarningILXMorgan42 min
Jul 1, 12:36 AM CDTSevere Thunderstorm WarningILXCass69 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.