Alert archive / Illinois / Flash Flood Warnings in 1993
Flash Flood Warning 8, NWS Lincoln, IL
NWS Lincoln, IL issued this flash flood warning at Jun 29, 1993, 2:50 AM CDT for Menard County, Sangamon County, Illinois. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Jun 29, 1993, 2:50 AM CDT (07:50 UTC)
- Expired
- Jun 29, 1993, 5:45 AM CDT
- In force
- 3 hr
- Issued by
- NWS Lincoln, IL
- Area
- Whole counties
Counties Menard County, IL, Sangamon County, IL
The nearest sounding before it
Paducah/Barkley, KY (KPAH), launched 00:00Z, 7.8 hours before the alert went out and 326 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
- 2209 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 1203 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 55 m²/s²
- 0-3 km storm-relative helicity
- 87 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 5.4
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KSPI 290750
FFWSPI
ILC129-167-291045-
BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD IL
250 AM CDT TUE JUN 29 1993
THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING
EFFECTIVE UNTIL 545 AM CDT FOR PEOPLE IN THE FOLLOWING
COUNTIES
IN THE CENTRAL PART OF ILLINOIS
SOUTHEAST MENARD...EASTERN SANGAMON
WEATHER SERVICE RADAR AND PUBLIC REPORTS INDICATE THUNDERSTORMS
PRODUCED 1 TO 2 INCHES OF RAIN OVER MUCH OF EASTERN SANGAMON
COUNTY BETWEEN 100 AND 230 AM CDT THIS MORNING.
A NATIONAL SERVICE EMPLOYEE REPORTED 2 INCHES OF RAINFALL AT ATHENS
IN SOUTHEAST MENARD COUNTY BETWEEN 130 AND 230 AM.
AT 142 AM CDT...THUNDERSTORMS WITH HEAVY RAIN CONTINUED TO MOVE
THROUGH EASTERN SANGAMON AND SOUTHEAST MENARD COUNTIES. SOME
FLASH FLOODING IS LIKELY FROM HEAVY RAINS WITH THESE STORMS.
STAY OUT OF DRY CREEK BEDS AND LOW LYING AREAS. FLASH FLOODS CAN
OCCUR WITH LITTLE OR NO ADVANCE WARNING.
DO NOT ATTEMPT TO DRIVE OVER ROADS COVERED BY FLOOD WATERS.
MCCOYWhat 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 29, 1:03 AM CDT, 1 hour 47 minutes before
ILZ010-290500- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD IL 1 02 AM CDT TUE JUN 29 1993 ...ISOLATED STRONG THUNDERSTORMS HAVE DEVELOPED OVER CENTRAL ILLINOIS... AT 1 00 AM CDT...ISOLATED STRONG THUNDERSTORMS HAD DEVELOPED OVER THE SOUTHWEST EDGE OF SPRINGFIELD...AND 8 MILES WEST OF SPRINGFIELD. MOVEMENT WAS SOUTHEAST AT 25 MPH. THESE STORMS SHOULD MOVE THROUGH SOUTH SPRINGFIELD...THE LAKE SPRINGFIELD AREA...AND ROCHESTER 6BETWEEN 1 AND 2 AM. DEADLY LIGHTNING...VERY HEAVY RAIN...GUSTY WINDS...AND POSSIBLY SOME SMALL HAIL SHOULD BE EXPECTED WITH THESE STORMS. MCCOY
Special weather statement, Jun 29, 2:34 AM CDT, 16 minutes before
TTAA00 KSPI2907340-290830- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD IL 2 32 AM CDT TUE JUN 29 1993 ...INTENSE THUNDERSTORMS WERE MOVING THROUGH THE SPRINGFIELD AREA... AT 2 30 AM CDT...A CLUSTER OF THUNDERSTORMS WAS LOCATED IN THE SPRINGFIELD AND TAYLORVILLE AREAS. RADAR INDICATED THE STRONGEST STORMS WERE ABOUT 12 MILES NORTHWEST OF SPRINGFIELD...AND 5 MILES NORTHWEST OF TAYLORVILLE. THE STORMS WERE MOVING SOUTHEAST AT 15 TO 20 MPH. SINCE 1 AM... THUNDERSTORMS HAVE BEEN REDEVELOPING OVER THE SPRINGFIELD AREA. SEVERAL OF THESE STORMS HAVE PRODUCED SMALL HAIL AND GUSTY WINDS... IN ADDITION TO DEADLY LIGTNING AND VERY HEAVY RAIN. STRONG THUNDERSTORMS WILL CONTINUE THROUGH AT LEAST 330 AM IN THE SPRINGFIELD...TAYLORVILLE AND MECHANICSBURG AREAS. MCCOY
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.