Alert archive / Illinois / Flash Flood Warnings in 1993

Flash Flood Warning 5, NWS Lincoln, IL

June 18, 1993Boone County, Illinois

NWS Lincoln, IL issued this flash flood warning at Jun 18, 1993, 11:45 PM CDT for Boone County, Illinois. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Jun 18, 1993, 11:45 PM CDT (04:45 UTC)
Expired
Jun 19, 1993, 2:10 AM CDT
In force
2 hr
Issued by
NWS Lincoln, IL
Area
Whole counties

County Boone County, IL

The nearest sounding before it

Detroit, MI (KFNT), launched 00:00Z, 4.8 hours before the alert went out and 444 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, Detroit, MI at 00:00Z on 1993-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 613 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, Detroit, MI at 00:00Z on 1993-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 42 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
613 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
885 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
42 m²/s²
0-3 km storm-relative helicity
75 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KRFD 190445
FFWRFD
ILC007-190745-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
FLASH FLOOD WARNING 
NATIONAL WEATHER SERVICE ROCKFORD IL
1145 PM CDT FRI JUN 18 1993

THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING 
EFFECTIVE UNTIL 245 AM CDT FOR PEOPLE IN THE FOLLOWING COUNTY

   IN THE NORTH CENTRAL PART OF ILLINOIS
      BOONE

AT 1140 PM CDT... THE BOONE COUNTY SHERIFF REPORTED EXTENSIVE
FLOODING OF ROADS AND STREETS IN BOONE COUNTY... ESPECIALLY IN
BELVIDERE ILLINOIS.

SOME COMMUNITIES THAT ARE IN OR NEAR THE FLASH FLOOD AREA...
BELVIDERE...CAPRON...CALEDONIA

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!

HELGERSON

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 18, 6:28 PM CDT, 5 hours 17 minutes before
ILZ009-190030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD IL
627 PM CDT FRI JUN 18 1993

...STRONG THUNDERSTORMS DEVELOPING SOUTHEAST OF SPRINGFIELD...

AT 620 PM CDT...RADAR INDICATED A STRONG THUNDERSTORM 20 MILES SOUTHEAST
OF SPRINGFIELD...NEAR KINCAID IN NORTHERN CHRISTIAN COUNTY.  THE STORM
IS MOVING NORTHEAST AT 20 MPH.  THE STORMS WILL BE AFFECTING THE TOWNS
OF STONINGTON...TAYLORVILLE...AND BLUE MOUND DURING THE NEXT HOUR.

NO SEVERE WEATHER HAS BEEN REPORTED AS OF 620 PM.  HOWEVER...THIS STORM
IS CAPABLE OF PRODUCING DEADLY LIGHTNING...GUSTY WINDS...SMALL
HAIL...AND VERY HEAVY RAINFALL.

STAY TUNED TO YOUR FAVORITE SOURCE FOR WEATHER INFORMATION IN CASE
FUTURE STATEMENTS OR WARNINGS ARE ISSUED.

GEELHART
Special weather statement, Jun 18, 6:39 PM CDT, 5 hours 6 minutes before
ILZ010-180030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD IL
6 40 PM CDT FRI JUN 18 1993

...SCATTERED THUNDERSTORMS CONTINUED ACROSS EAST CENTRAL ILLINOIS...

AT 630 PM CDT...SCATTERED THUNDERSTORMS WERE BROKEN ALONG A LINE FROM
25 MILES NORTH OF DANVILLE TO 15 MILES SOUTHWEST OF DANVILLE TO 15
MILES SOUTHWEST OF PARIS...IN EDGAR COUNTY.  THE STRONGEST STORM WAS
LOCATED 25 MILES NORTH OF DANVILLE NEAR HOOPESTON.  THESE STORMS WERE
MOVING TO THE NORTHEAST AT 20 MPH.

NO SEVERE WEATHER HAS BEEN REPORTED WITH THESE STORMS.  HOWEVER...
THE SLOW MOVEMENT OF THESE STORMS MAY RESULT IN LOCALLY HEAVY RAINFALL.
MOTORISTS SHOULD EXPECT PONDING OF WATER ON ROADWAYS IN AREAS OF
HEAVY RAIN.  MINOR FLOODING OF SOME LOW LYING AREAS AND STREETS IS
ALSO POSSIBLE.
.
SOME OF THE STRONGER STORMS MAY PRODUCE SOME GUSTY WINDS...SMALL HAIL
AND DANGEROUS LIGHTNING.

AUTEN
Special weather statement, Jun 18, 7:33 PM CDT, 4 hours 12 minutes before
ILZ009-010-190130-

SPECIAL WEATHER STATEMENT ... CORRECTION TO HEADER
NATIONAL WEATHER SERVICE SPRINGFIELD IL
731 PM CDT FRI JUN 18 1993

...STRONG THUNDERSTORMS IN EAST CENTRAL ILLINOIS...

AT 730 PM CDT...RADAR INDICATED TWO STRONG THUNDERSTORMS.  THE FIRST
STORM WAS LOCATED 25 MILES NORTH OF DECATUR...NEAR THE TOWN OF CLINTON
IN DEWITT COUNTY.  THE SECOND STORM WAS LOCATED JUST SOUTHWEST OF
DANVILLE...IN CENTRAL VERMILION COUNTY.  BOTH OF THESE STORMS ARE MOVING
TO THE NORTHEAST AT 30 MPH.

NO SEVERE WEATHER HAS BEEN REPORTED AS OF 730 PM.  HOWEVER...PEOPLE IN
THE PATH OF THE STORMS SHOULD BE ALERT FOR GUSTY WINDS...POSSIBLE SMALL
HAIL...DANGEROUS LIGHTNING...AND BRIEF HEAVY RAINS.

STAY TUNED TO YOUR FAVORITE SOURCE FOR WEATHER INFORMATION IN CASE
FURTHER STATEMENTS OR WARNINGS ARE ISSUED.

GEELHART
Special weather statement, Jun 18, 8:44 PM CDT, 3 hours 1 minute before
ILZ009-010-190230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD IL
843 PM CDT FRI JUN 18 1993

...STRONG THUNDERSTORMS REDEVELOPING IN CENTRAL ILLINOIS...

AT 830 PM CDT...RADAR INDICATED A STRONG THUNDERSTORM ABOUT 60 MILES
SOUTH OF SPRINGFIELD...NEAR HILLSBORO IN SOUTHERN MONTGOMERY COUNTY.
HEAVY RAIN...GUSTY WINDS...DANGEROUS LIGHTNING...AND SMALL HAIL ARE
POSSIBLE WITH THIS STORM AS IT MOVES TO THE NORTHEAST AT 30 MPH.

RADAR ALSO INDICATED STRONG THUNDERSTORMS IN FAR EAST-CENTRAL ILLINOIS
NORTH OF DANVILLE.  THESE STORMS ARE ALSO MOVING NORTHEAST AT 30 MPH
AND SHOULD EXIT THE STATE BY 9 PM.

STAY TUNED TO YOUR FAVORITE SOURCE FOR WEATHER INFORMATION IN CASE
FURTHER STATEMENTS OR WARNINGS ARE ISSUED.

GEELHART
Special weather statement, Jun 18, 10:00 PM CDT, 1 hour 45 minutes before
ILZ007-190415-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
1000 PM CDT FRI JUN 18 1993

...FLASH FLOOD WATCH IN EFFECT TONIGHT...

AT 955 PM... MOST OF THE STRONG THUNDERSTORM ACTIVITY ACROSS WEST CENTRAL
ILLINOIS HAD WEAKENED TO ISOLATED THUNDERSTORMS AND HEAVY SHOWERS. THE
STRONGEST ACTIVITY CONTINUED GENERALLY NORTH OF A LINE FROM BURLINGTON TO
BRADFORD. ALSO SCATTERED THUNDERSTORMS DOTTED SOUTHERN TAZEWELL AND MCLEAN
COUNTIES AS WELL AS ONE NEAR BLOOMINGTON. THIS ACTIVITY WAS MOVING NORTHEAST
AROUND 30 MPH.

THE SHOWERS AND THUNDERSTORMS ARE EXPECTED TO BECOME MORE NUMEROUS YET TONIGHT.
WITH THE ACTIVITY BECOMING MORE NUMEROUS AND WITH EXPECTED SLOW MOVEMENTS
A FLOOD WATCH CONTINUES IN EFFECT TONIGHT.

MOGGED
Special weather statement, Jun 18, 10:09 PM CDT, 1 hour 36 minutes before
ILZ007-190415-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
1000 PM CDT FRI JUN 18 1993

...FLASH FLOOD WATCH IN EFFECT TONIGHT...

AT 955 PM... MOST OF THE STRONG THUNDERSTORM ACTIVITY ACROSS WEST CENTRAL
ILLINOIS HAD WEAKENED TO ISOLATED THUNDERSTORMS AND HEAVY SHOWERS. THE
STRONGEST ACTIVITY CONTINUED GENERALLY NORTH OF A LINE FROM BURLINGTON TO
BRADFORD. ALSO SCATTERED THUNDERSTORMS DOTTED SOUTHERN TAZEWELL AND MCLEAN
COUNTIES AS WELL AS ONE NEAR BLOOMINGTON. THIS ACTIVITY WAS MOVING NORTHEAST
AROUND 30 MPH.

THE SHOWERS AND THUNDERSTORMS ARE EXPECTED TO BECOME MORE NUMEROUS YET TONIGHT.
WITH THE ACTIVITY BECOMING MORE NUMEROUS AND WITH EXPECTED SLOW MOVEMENTS
A FLOOD xWATCH CONTINUES IN EFFECT TONIGHT.

MOGGED

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 18, 8:02 PM CDTSevere Thunderstorm WarningILXWarren28 min
Jun 18, 8:12 PM CDTSevere Thunderstorm WarningILXHancock, Henderson63 min
Jun 18, 11:48 PM CDTSevere Thunderstorm WarningILXMcLean27 min
Jun 19, 3:01 PM CDTSevere Thunderstorm WarningILXMcDonough, Warren59 min
Jun 19, 3:01 PM CDTSevere Thunderstorm WarningILXKnox59 min
Jun 19, 3:20 PM CDTSevere Thunderstorm WarningILXFulton40 min
Jun 19, 3:59 PM CDTSevere Thunderstorm WarningILXMarshall, Peoria61 min
Jun 19, 4:08 PM CDTSevere Thunderstorm WarningILXMorgan37 min
Jun 19, 4:30 PM CDTSevere Thunderstorm WarningILXCass, Menard, Sangamon30 min
Jun 19, 4:37 PM CDTFlash Flood WarningILXFulton, Marshall, Peoria4 hr
Jun 19, 4:47 PM CDTSevere Thunderstorm WarningILXTazewell, Woodford43 min
Jun 19, 4:54 PM CDTSevere Thunderstorm WarningILXHancock36 min
Jun 19, 5:25 PM CDTTornado WarningILXLee, Ogle35 min
Jun 19, 5:29 PM CDTSevere Thunderstorm WarningILXMcDonough, Warren46 min
Jun 19, 6:34 PM CDTTornado WarningILXFulton26 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.