Alert archive / Illinois / Flash Flood Warnings in 1990

Flash Flood Warning 7, NWS Lincoln, IL

June 16, 1990Hancock County, Illinois

NWS Lincoln, IL issued this flash flood warning at Jun 16, 1990, 6:08 PM CDT for Hancock County, Illinois. It was in force for 97 min.

The area

The counties it named.

The facts

Issued: Jun 16, 1990, 6:08 PM CDT (23:08 UTC)
Expired: Jun 16, 1990, 7:45 PM CDT
In force: 97 min
Issued by: NWS Lincoln, IL
Area: Whole counties

County Hancock 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

Topeka, KS (KTOP), launched 12:00Z, 11.1 hours before the alert went out and 413 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2508 J/kg
Mixed-layer CIN: -118 J/kg
Mixed-layer LCL: 783 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 234 m²/s²
0-3 km storm-relative helicity: 231 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 KPIA 162308
FFWPIA
ILC067-170145-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
FLASH FLOOD WARNING 
NATIONAL WEATHER SERVICE PEORIA IL
608 PM CDT SAT JUN 16 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING 
EFFECTIVE UNTIL 845 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY

   IN THE WEST CENTRAL PART OF ILLINOIS
      NORTHERN AND CENTRAL HANCOCK

AT 558 PM CDT HANCOCK COUNTY SHERIFF/S DEPARTMENT REPORTED THAT
CAMP CREEK AND WEAVER CREEK WERE BANKFULL AND HEAVY RAIN CONTINUED
TO FALL. THREE FEET OF WATER WAS STANDING ON ILLINOIS ROUTE 96
4 MILES SOUTH OF NAUVOO AND A MUDSLIDE WAS OCCURRING NEAR THE
SAME AREA.

STAY OUT OF DRY CREEK BEDS AND LOW LYING AREAS.  FLASH FLOODS CAN
OCCUR WITH LITTLE OR NO ADVANCE WARNING.

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.

 RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAIN IN NORTHERN AND
 CENTRAL HANCOCK COUNTY. OTHER THUNDERSTORMS WERE TO THE WEST OF
 THE MISSISSIPPI RIVER IN SOUTHEAST IOWA AND NORTHEAST MISSOURI
 APPROACHING HANCOCK COUNTY. THESE THUNDERSTORMS COULD BRING HEAVY
 RAINFALL TO ALREADY FLOODED AREAS BETWEEN 600 AND 800 PM.

ATTN ISP DIST...14

MILLER

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 16, 2:50 PM CDT, 3 hours 18 minutes before

ILZ009-162100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD IL
250 PM CDT SAT JUN 16 1990

...SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 7 PM CDT FOR MASON
   CASS...MENARD..LOGAN..AND SANGAMON COUNTIES OF CENTRAL ILLINOIS

AT 245 PM CDT WEATHER RADAR INDICATED NO THUNDERSTORM ACTIVITY OVER
CENTAL ILLINOIS. HOWEVER DUE TO HOT AND HUMID CONDITIONS NOW PRESENT
OVER CENTRAL ILLINOIS..THUNDERSTORMS ARE FORECAST TO DEVELOP. SOME OF
THESE STORMS WILL BE CAPABLE OF PRODUCING HAIL...DAMAGING WINDS AND
DANGEROUS LIGHTNING.

PERSONS ARE URGED TO SEEK COVER IN A REINFORCED SHELTER SHOULD
THREATENING WEATHER DEVELOP.
FENLEY

Special weather statement, Jun 16, 3:49 PM CDT, 2 hours 19 minutes before

ILZ005-006-007-009-162150-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
345 PM CDT SAT JUN 16 1990

...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 700 PM FOR WESTERN ILLINOIS
INCLUDING PEORIA AND SURROUNDING COUNTIES...

AT 340 PM CDT RADAR INDICATED A LINE OF THUNDERSTORMS EXTENDING FROM 40
MILES NORTHWEST OF MOLINE...ALONG THE MISSISSIPPI RIVER TO 20 MILES
NORTHWEST OF QUINCY. THE STRONGEST STORMS WERE LOCATED 35 AND 50 MILES
SOUTH SOUTHWEST OF BURLINGTON IOWA. MOVEMENT WAS EAST AT 30 MILES AND HOUR.

THESE STORMS WILL BE CAPABLE OF PRODUCING STRONG GUSTY WINDS...LARGE HAIL
HEAVY RAIN AND DANGEROUS LIGHTNING AS THEY MOVE THROUGH PARTS OF WESTERN
ILLINOIS THE NEXT FEW HOURS.B STAY TUNED TO RADIO...TELEVISION...OR NOAA
WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE WARNINGS.

MILLER

Special weather statement, Jun 16, 4:21 PM CDT, 1 hour 47 minutes before

ILZ009-162230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD IL
420 PM CDT SAT JUN 16 1990

...SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 7 PM CDT FOR MASON
   CASS...MENARD..LOGAN..AND SANGAMON COUNTIES OF CENTRAL ILLINOIS

AT 416 PM CDT WEATHER RADAR INDICATED A LARGE AREA OF SHOWERS AND
THUNDERSTORMS HAS NOW MOVED INTO WESTERN ILLINOIS. THE STORMS WERE
WEST OF A LINE FROM 20 MILES EAST OF KEOKUK IOWA TO NEAR MOLINE ILLINOIS.
NO THUNDERSTORMS WERE IN CENTRAL ILLINOIS AT THIS TIME. HOWEVER DUE TO
HOT AND HUMID CONDITIONS THUNDERSTORMS ARE FORECAST TO DEVELOP. SOME OF
THESE STORMS WILL BE CAPABLE OF PRODUCING HAIL...DAMAGING WINDS AND
DANGEROUS LIGHTNING.

PERSONS ARE UbRGED TO SEEK COVER IN A REINFORCED SHELTER SHOULD
THREATENING WEATHER DEVELOP.
HILLIARD
ATTN ISP DISTRICT 9

Special weather statement, Jun 16, 4:44 PM CDT, 1 hour 24 minutes before

ILZ005-006-007-009-162250-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
442 PM CDT SAT JUN 16 1990

...SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM FOR WESTERN
ILLINOIS...

AT 440 PM CDT RADAR INDICATED A LINE OF THUNDERSTORMS EXTENDING FROM JUST
EAST OF MOLINE TO JUST EAST OF BURLINGTON IOWA INTO EXTREME NORTHEAST
MISSOURI. THE STRONGEST STORMS WERE LOCATED 20 MILES SOUTH OF MOLINE
AND IN NORTHERN HANCOCK COUNTY NEAR NAUVOO...20 MILES SOUTH SOUTHWEST OF
BURLINGTON. MOVEMENT WAS EAST AT 30 MILES AN HOUR.

THESE STORMS WILL BE CAPABLE OF PRODUCING STRONG GUSTY WINDS...LARGE HAIL
HEAVY RAIN AND DANGEROUS LIGHTNING. STAY TUNED TO RADIO...TV...OR NOAA
WEATHER RADIO| FOR LATER STATEMENTS AND POSSIBLE WARNINGS.

MILLER

Special weather statement, Jun 16, 5:26 PM CDT, 42 minutes before

ILZ009-162330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD IL
525 PM CDT SAT JUN 16 1990

...SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 7 PM CDT FOR MASON
   CASS...MENARD..LOGAN..AND SANGAMON COUNTIES OF CENTRAL ILLINOIS

AT 623 PM CDT WEATHER RADAR INDICATED A LARGE AREA OF SHOWERS AND
THUNDERSTORMS HAS NOW MOVED INTO WESTERN ILLINOIS. THE STORMS WERE
WEST OF A LINE FROM 20 MILES SOUTHEAST OF KEOKUK IOWA THEN NORTHEAST
TO NEAR LASALLE ILLINOIS AND ON NORTHWARD.

THE THUNDERSTORMS WAS MOVING EAST AT 30 MPH.

NO THUNDERSTORMS WERE IN CENTRAL ILLINOIS AT THIS TIME. HOWEVER DUE TO
HOT AND HUMID CONDITIONS THUNDERSTORMS ARE FORECAST TO DEVELOP. SOME OF
THESE STORMS WILL BE CAPABLE OF PRODUCING HAIL...DAMAGING WINDS AND
DANGEROUS LIGHTNING.

HILLIARD
ATTN...ISP DIST....9

Special weather statement, Jun 16, 5:29 PM CDT, 39 minutes before

ILZ009-162330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD IL
525 PM CDT SAT JUN 16 1990

...SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 7 PM CDT FOR MASON
   CASS...MENARD..LOGAN..AND SANGAMON COUNTIES OF CENTRAL ILLINOIS

AT 523 PM CDT WEATHER RADAR INDICATED A LARGE AREA OF SHOWERS AND
THUNDERSTORMS HAS NOW MOVED INTO WESTERN ILLINOIS. THE STORMS WERE
WEST OF A LINE FROM 20 MILES SOUTHEAST OF KEOKUK IOWA THEN NORTHEAST
TO NEAR LASALLE ILLINOIS AND ON NORTHWARD.

THE THUNDERSTORMS WAS MOVING EAST AT 30 MPH.

NO THUNDERSTORMS WERE IN CENTRAL ILLINOIS AT THIS TIME. HOWEVER DUE TO
HOT AND HUMID CONDITIONS THUNDERSTORMS ARE FORECAST TO DEVELOP. SOME OF
THESE STORMS WILL BE CAPABLE OF PRODUCING HAIL...DAMAGING WINDS AND
DANGEROUS LIGHTNING.
HILLIARD
ATTN...ISP DIST....9

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 16, 5:12 PM CDT	Severe Thunderstorm Warning	ILX	Hancock	48 min
Jun 16, 5:30 PM CDT	Severe Thunderstorm Warning	ILX	Bureau	60 min
Jun 16, 6:20 PM CDT	Tornado Warning	ILX	Knox, Stark	25 min

Nearby

Flash Flood Warnings in Illinois, 1990 Every 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.