Flash Flood Warning 1, NWS Lincoln, IL

Issued

Apr 29, 1998, 7:43 PM CDT (00:43 UTC)

Expired

Apr 29, 1998, 10:00 PM CDT

In force

2 hr

Issued by

NWS Lincoln, IL

Area

Whole counties

Counties Logan County, IL, McLean County, IL

The Lincoln radar (KILX), 26 km from the middle of the area, began a volume at 00:43 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

000 
TTAA00 KSPI 300044
FFWSPI
ILC107-113-300300-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
743 PM CDT WED APR 29 1998

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* FLASH FLOOD WARNING FOR
  LOGAN COUNTY IN CENTRAL ILLINOIS
  MCLEAN COUNTY IN CENTRAL ILLINOIS

* UNTIL 1000 PM CDT

* AS OF 740 PM CDT...DOPPLER RADAR INDICATED UP TO 3 INCHES OF RAIN
  HAS FALLEN OVER THE PAST COUPLE OF HOURS. NUMEROUS REPORTS OF
  FLOODING IN THE TOWN OF LINCOLN HAVE BEEN REPORTED WITH SOME
  BASEMENTS AFFECTED.

* A LINE OF INTENSE THUNDERSTORMS WILL CONTINUE TO MOVE TO THE
  NORTHEAST AT 20 MPH. UP TO TWO INCHES OF ADDITIONAL RAINFALL IS
  POSSIBLE WITH THESE STORMS IN THE NEXT 1 TO 2 HOURS.

MOVE TO HIGHER GROUND IMMEDIATELY IF FLOODWATERS THREATEN AND AVOID
DRIVING ACROSS FLOODED ROADS.

BYRD


&

NWS Lincoln, IL wrote its last area forecast discussion before this flash flood warning went out at Apr 29, 2:00 PM CDT, 5 hours 43 minutes earlier.

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LINCOLN IL
200 PM CDT WED APR 29 1998

AT 18Z SFC LOW WAS LOCATED OVR ERN KS WITH BNDRY EXTENDING THRU NRN MO
AND INTO CNTRL IL.  DWPTS INTO THE LOW 60S HAVE ADVECTED INTO ERN AND
SERN PARTS OF CWA.  SAT TRENDS SHOW CLOUDS BREAKING UP ACRS SRN HALF OF
STATE AND THIS HELPING TO CREATE LIS AROUND -2 WITH NO CAP.  MODIFIED
12Z SOUNDING AT ILX AND ETA MDL FCST GIVES CAPE VALUES ABOVE 500-800
J/KG.  SHR VALUES ARE MINIMAL BUT BNDRY EVIDENT ON SATELLITE FROM CNTRL
MO INTO ARK IS MOVING INTO WRN IL THIS AFTERNOON.  BLV ETA MDL UNDERDOES
MOISTURE AT LOW LEVELS INCLUDING 850.  45 TO 50KT JET MAX AT 500 LOOKS
GOOD BUT MOST OF WIND DYNAMICS ARE WEAK. HOWEVER...CAA ADVECTION AT 500
AND INSTABILITY AND MOISTURE SHOULD BE ENOUGH TO PRODUCE SCATTERED
THUNDERSTORMS THIS AFTERNOON INTO TONIGHT.  WINDS SHOULD REMAIN OUT OF
SOUTH TONIGHT...BUT SWITCH TO SOUTHWEST TOMORROW MORNING.  GUIDANCE HAS
LOW POPS TONIGHT WITH CHC FOR TOMORROW.  BLV AFTER INITIAL RWS AND
THUNDERSTORMS TONIGHT...WILL BE BREAK IN PCPN TIL TOMORROW LATE MORNING
AND AFTERNOON.

CLOUDS TONIGHT AND SOUTH WINDS WILL KEEP TEMPERATURES ABOVE NORMAL.
TOMORROW CLOUDS WILL CONT.  AS LOW MOVES EAST-SOUTHEAST...CWA SHOULD BE
ON NORTH TO NORTHWEST SIDE OF LOW.  THIS WILL KEEP US IN CLOUDS TOMORROW
AND MILDER TEMPS.  GUIDANCE LOOKS REASONABLE.

INPUT COMING SHORTLY.

PIA  52/66  74
SPI  54/67  74
DEC  53/67  74
CMI  52/66  74
LWV  56/68  74

AUTEN

Flash Flood Warnings in Illinois, 1998Every flash flood warning in 1998

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; radar from the NEXRAD Level II archive.