Alert archive / Illinois / Flash Flood Warnings in 1993
Flash Flood Warning 1, NWS Lincoln, IL
NWS Lincoln, IL issued this flash flood warning at May 6, 1993, 3:34 PM CDT for Macoupin County, Morgan County, Illinois. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- May 6, 1993, 3:34 PM CDT (20:34 UTC)
- Expired
- May 6, 1993, 6:30 PM CDT
- In force
- 3 hr
- Issued by
- NWS Lincoln, IL
- Area
- Whole counties
Counties Macoupin County, IL, Morgan County, IL
The nearest sounding before it
Paducah/Barkley, KY (KPAH), launched 12:00Z, 8.6 hours before the alert went out and 294 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
- 460 J/kg
- Mixed-layer CIN
- -140 J/kg
- Mixed-layer LCL
- 1210 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 13 m²/s²
- 0-3 km storm-relative helicity
- 48 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 KSPI 062034
FFWSPI
ILC137-117-062330-
BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD IL
334 PM CDT THU MAY 6 1993
THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING
EFFECTIVE UNTIL 630 PM CDT FOR PEOPLE IN THE FOLLOWING
COUNTIES
IN THE CENTRAL PART OF ILLINOIS
EXTREME SOUTHERN MORGAN...EXTREME NORTHERN MACOUPIN
VERY HEAVY RAIN HAS OCCURRED OVER SOUTHEASTERN MORGAN COUNTY
AND EXTREME NORTHERN MACOUPIN COUNTY. HIGHWAY 111 IS FLOODED
FROM WAVERLY INTO MACOUPIN COUNTY.
DO NOT ATTEMPT TO DRIVE OVER ROADS COVERED BY FLOOD WATERS.
SKIPPERWhat 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, May 6, 10:48 AM CDT, 4 hours 46 minutes before
ILZ009-061630- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD IL 1045 AM CDT THU MAY 6 1993 ...THUNDERSTORMS DEVELOPING RAPIDLY OVER CENTRAL ILLINOIS... AT 1040 CDT...WEATHER RADAR INDICATED AN AREA OF SHOWERS AND THUNDERSTORMS WEST OF A LINE EXTENDING FROM PEORIA TO SPRINGFIELD TO ST LOUIS. THE STRONGEST STORMS WERE LOCATED IN MORGAN COUNTY NEAR THE CITY OF JACKSONVILLE...OR ABOUT 25 MILES WEST OF SPRINGFIELD. THE STORMS WILL CONTINUE TO MOVE EAST AT 10 TO 15 MPH. EXPECT DEADLY LIGHTNING...HEAVY RAIN...AND SMALL HAIL FROM THESE STORMS. SKIPPER
Special weather statement, May 6, 1:08 PM CDT, 2 hours 26 minutes before
ILZ009-061630- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD IL 1 05 PM CDT THU MAY 6 1993 ...THUNDERSTORMS NEARLY STATIONARY ACROSS PARTS OF CENTRAL ILLINOIS... AT 1 05 PM CDT...WEATHER RADAR INDICATED AN AREA OF SHOWERS AND THUNDERSTORMS WEST OF A LINE EXTENDING FROM 30 MILES SOUTHWEST OF PEORIA TO 10 MILES SOUTHEAST OF SPRINGFIELD. SEVERAL STRONG STORMS WERE LOCATED IN EXTREME SOUTHEAST MORGAN COUNTY...OR ABOUT 25 MILES SOUYTHWEST OF SPRINGFIELD. THE STORMS WERE MOVING SLOWLY EAST AROUND 5 MPH. EXPECT DEADLY LIGHTNING...HEAVY RAIN...AND SMALL HAIL FROM THESE STORMS. SKIPPER
Special weather statement, May 6, 2:20 PM CDT, 1 hour 14 minutes before
ILZ009-062000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD IL 215 PM CDT THU MAY 6 1993 ...THUNDERSTORMS CONTINUE OVER PARTS OF CENTRAL ILLINOIS... AT 2 14 PM CDT...WEATHER RADAR INDICATED AN AREA OF THUNDERSTORMS EXTENDING SOUTHWEST OF A LINE FROM 35 MILES NORTHWEST OF SPRINGFIELD TO 5 MILES EAST OF SPRINGFIELD TO 45 MILES SOUTHWEST OF SPRINGFIELD. THE STRONGEST STORMS WERE IN A CLUSTER IN NORTH CENTRAL MACOUPIN COUNTY...OR ABOUT 40 MILES SOUTHWEST OF SPRINGFIELD. THESE STORMS HAVE BEEN MOVING EAST VERY SLOWLY...ABOUT 5 MPH AND THE STORMS WILL PRODUCE DEADLY LIGHTNING...HEAVY RAIN AND POSSIBLY SOME SMALL HAIL. SKIPPER
The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 3:04 PM CDT | Severe Thunderstorm Warning | ILX | Montgomery | 43 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.