Alert archive / Illinois / Flash Flood Warnings in 1990
Flash Flood Warning 47, NWS Lincoln, IL
NWS Lincoln, IL issued this flash flood warning at Dec 29, 1990, 4:20 PM CST for Macoupin County, Illinois. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- Dec 29, 1990, 4:20 PM CST (22:20 UTC)
- Expired
- Dec 29, 1990, 9:15 PM CST
- In force
- 5 hr
- Issued by
- NWS Lincoln, IL
- Area
- Whole counties
County Macoupin County, IL
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Springfield, MO (KUMN), launched 12:00Z, 10.3 hours before the alert went out and 429 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
- 21 J/kg
- Mixed-layer CIN
- -114 J/kg
- Mixed-layer LCL
- 596 m above ground
- 0-6 km bulk shear
- 71 kt
- 0-1 km storm-relative helicity
- 387 m²/s²
- 0-3 km storm-relative helicity
- 390 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 292220
FFWSPI
ILC117-300315-
BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD IL
420 PM CST SAT DEC 29 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING
EFFECTIVE UNTIL 915 PM CST FOR PEOPLE IN THE FOLLOWING COUNTY
IN THE CENTRAL PART OF ILLINOIS
MACOUPIN
AT 410 PM CST MACOUPIN COUNTY EMERGENCY SERVICES REPORTS FLOODING
IN MACOUPIN COUNTY..RAINFALL AMOUNTS OF 1 TO 3 INCHES AND SNOW
MELT OF 5 TO 8 INCHES OF SNOW IS CAUSING CONSIDERABLE FLOODING IN
MACOUPIN COUNTY. PERSONS IN MONTGOMERY COUNTY SHOULD BE ON THE
ALERT FOR FLOODING.
IF YOU ARE IN THE WARNED COUNTY IN AN AREA SUBJECT TO FLOODING\
MOVE TO HIGHER GROUND.
DO NOT ATTEMPT TO DRIVE OVER ROADS COVERED BY FLOOD WATERS.
ATTN ISP DIST...18
HILLIARDWhat 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, Dec 29, 11:46 AM CST, 4 hours 34 minutes before
ILZ009-010-292000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD IL 1140 AM CST SAT DEC 29 1990 AT 1135 AM CST WEATHER RADARS CONTINUE TO SHOW A LARGE AREA OF LIGHT RAIN WITH PATCHES OF MODERATE RAIN GENERALLY SOUTH OF A LINE FROM HOOPESTON ILLINOIS IN NORTHERN VERMILION COUNTY TO JUST NORTH OF SPRINGFIELD TO NEAR PITTSFIELD ILLINOIS. STATE POLICE AND SHERIFFS OFFICE OF CHAPAIGN..PIATT...SHELBY...MACON COUNTIES REPORTED WATER OVER ROADWAYS IN MANY LOCATIONS. FLOODING OF LOW LYING AREAS...SMALL STREAMS...VIADUCTS AND ROADWAYS WILL OCCUR DUE TO REPORTS OF 1 TO 2 INCHES OF RAIN DURING THE PAST 18 TO 24 HOURS PLUS THE WARM TEMPERATURES THAT HAS MELTED FROM 5 TO 8 INCHES OF S*NOW IN SOME AREAS. PERSONS ARE ADVISED TO BE ON THE ALERT FOR THESE FLOODING CONDITIONS OF ROADWAYS STREETS AND LOW LYING AREAS. [ HILLIARD ATTN: ISP DIST...9..10..6..12 AND 18
Special weather statement, Dec 29, 12:49 PM CST, 3 hours 31 minutes before
ILZ009-010-292000-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD IL
1245 PM CST SAT DEC 29 1990
AT 1240 PM CST WEATHER RADARS SHOWS A LARGE AREA OF RAIN EAST OF A
LINE FROM NEAR BLOOMINGTON ILLINOIS TO PITTSFIELD ILLINOIS. THE RAIN
IS MOSTLY LIGHT ..HOWEVER THERE WERE A FEW PATCHES OF MODERATE.
THE PRECIPITATION IS MOVING EAST AT 25 MPH.
SOME FLOODING IS OCCURRING DUE TO REPORTS OF 1 TO 2 INCHES OF RAINFALL
AND THE WARM TEMPERATURES THAT HAS MELTED FROM 5 TO 8 INCHES OF SNOW
IN SOME AREAS. WATER IS REPORTED ACROSS SOME ROADWAYS OVER CENTRA
L AND
EASTERN ILLINOIS. PERSONS ARE ADVISED TO BE ON THE ALERT AND qUSE EXTREME
CAUTIONS AS SOME FLOODING WILL OCCUR IN LOW LYING AREAS...SMALL STREAMS..
ROADWAYS AND VIADUCTS.
HILLIARD
ATTN:ISP DISTS 9...10...6...12...18Special weather statement, Dec 29, 2:13 PM CST, 2 hours 7 minutes before
ILZ009-010-292000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD IL 2 10 PM CST SAT DEC 29 1990 AT 2 05PM CST WEATHER RADARS SHOWS A LARGE AREA OF RAIN...FREEZING RAIN AND SLEET OVER CENTRAL AND EASTERN ILLINOIS. THE FREEZING RAIN AND SLEET IS OVER CENTRAL AND WESTERN ILLINOIS WEST OF SPRINGFIELD RAIN AT TIME MODERATE CONTINUE OVER EAST-CENTRAL AND EASTERN ILLINOIS. THE PRECIPITATION IS MOVING EAST AT 20 MPH. SOME FLOODING CONTINUES OVER CENTRAL AND EASTERN ILLINOIS WHERE UP TO 2 TO 3 INCHES OF RAIN HAS FALLIN IN THE PAST 24 HRS. ALSO WARM TEMPER- ATURES HAS MELTED FROM 5 TO 8 INCHES OF SNOW THAT WAS ON THE GROUND. PERSONS ARE ADVISED TO BE ON THE ALERT AND USE EXTREME CAUTIONS DUE TO WATER OVER SOME ROADWAYS..STREETS AND LOW LYING AREAS...MOTORISTS ARE ADVISED TO USE EXTREME CAUTIONS OVER PORTIONS OF CENTRAL AND WEST-CENTRAL ILLINOIS WHERE FREEZING RAIN IS NOW OCCURRING. TRAVEL CONDITIONS WILL BECOME VERY HAZARDOUS. HILLIARD ATTN: ISP DISTRICTS..9...10...6..18..12
Special weather statement, Dec 29, 2:18 PM CST, 2 hours 2 minutes before
ILZ009-010-292000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD IL 2 10 PM CST SAT DEC 29 1990 AT 2 05PM CST WEATHER RADARS SHOWS A LARGE AREA OF RAIN...FREEZING RAIN AND SLEET OVER CENTRAL AND EASTERN ILLINOIS. THE FREEZING RAIN AND SLEET IS OVER CENTRAL AND WESTERN ILLINOIS WEST OF SPRINGFIELD RAIN AT TIME MODERATE CONTINUE OVER EAST-CENTRAL AND EASTERN ILLINOIS. THE PRECIPITATION IS MOVING EAST AT 20 MPH. SOME FLOODING CONTINUES OVER CENTRAL AND EASTERN ILLINOIS WHERE UP TO 2 TO 3 INCHES OF RAIN HAS FALLIN IN THE PAST 24 HRS. ALSO WARM TEMPER- ATURES HAS MELTED FROM 5 TO 8 INCHES OF SNOW THAT WAS ON THE GROUND. PERSONS ARE ADVISED TO BE ON THE ALERT AND USE EXTREME CAUTIONS DUE TO WATER OVER SOME ROADWAYS..STREETS AND LOW LYING AREAS...MOTORISTS ARE ADVISED TO USE EXTREME CAUTIONS OVER PORTIONS OF CENTRAL AND WEST-CENTRAL ILLINOIS WHERE FREEZING RAIN IS NOW OCCURRING. TRAVEL CONDITIONS WILL BECOME VERY HAZARDOUS. HILLIARD ATTN: ISP DISTRICTS..9...10...6..18..12
Special weather statement, Dec 29, 2:42 PM CST, 1 hour 38 minutes before
ILZ005>007-009-292130- WEATHER UPDATE FOR PEORIA AND WEST CENTRAL ILLINOIS NATIONAL WEATHER SERVICE PEORIA IL 142 PM CST SAT DEC 29 1990 ...TEMPERATURES ACROSS THE HEART OF ILLINOIS REGION HAVE FALLEN I
Special weather statement, Dec 29, 4:09 PM CST, 11 minutes before
ILZ005>007-009-292330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PEORIA IL 400 PM CST SAT DEC 29 1990 ...A WINTER STORM WARNING HAS BEEN ISSUED FOR CENTRAL ILLINOIS... AN AREA OF SLEET AND FREEZING RAIN HAS MOVED UP INTO THE HEART OF ILLINOIS AREA FROM THE SOUTHWEST. TRAVEL IS HAZARDOUS AS FREEZING RAIN AND SLEET PUTS A COAT OF ICE ON AREA ROADS AND BRIDGES FROM THE LATE AFTERNOON THROUGH THE NIGHT. ICE WILL ALSO ACCUMULATE ON TREES AND POWERLINES. THE WARNING COVERS THAT PART OF CENTRAL ILLINOIS EAST OF A LINE FROM ROUGHLY KEWANNEE TO MACOMB TO BEARDSTOWN. THE SLEET AND FREEZING RAIN SHOULD CHANGE TO LIGHT SNOW BY MORNING. SURFACE TRAVEL IS DISCOURAGED ACROSS THE CENTRAL RILLINOIS AREA... ROADS HAVE BECOME VERY SLIPPERY. POWER OUTAGES MAY OCCUR AS ICE BECOMES HEAVY ON POWER LINES... OR IF TREE LIMBS WIGHED DOWN BY ICE FALL ON POWER LINES. JACOBS
The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 29, 2:38 PM CST | Flash Flood Warning | ILX | Champaign, Coles, Douglas, Edgar, Moultrie, Piatt | 4 hr |
| Dec 29, 2:38 PM CST | Flash Flood Warning | ILX | Macon, Shelby | 4 hr |
Nearby
Flash Flood Warnings in Illinois, 1990Every flash flood warning in 1990
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.