Alert archive / Iowa / Flash Flood Warnings in 1990
Flash Flood Warning 9, NWS Quad Cities, IA
NWS Quad Cities, IA issued this flash flood warning at Jun 16, 1990, 4:03 PM CDT for Clinton County, Iowa; Whiteside County, Illinois. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Jun 16, 1990, 4:03 PM CDT (21:03 UTC)
- Expired
- Jun 16, 1990, 7:00 PM CDT
- In force
- 3 hr
- Issued by
- NWS Quad Cities, IA
- Area
- Whole counties
Counties Clinton County, IA, Whiteside 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
Green Bay/Straub, WI (KGRB), launched 12:00Z, 9.1 hours before the alert went out and 342 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1259 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 158 m²/s²
- 0-3 km storm-relative helicity
- 170 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 KMLI 162107 COR
FFWMLI
IAC163-045-031-139-ILC161-195-170000-
BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOLINE IL
403 PM CDT SAT JUN 16 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING
EFFECTIVE UNTIL 700 PM CDT FOR PEOPLE IN THE FOLLOWING
COUNTIES
IN THE EXTREME EAST PART OF IOWA
SCOTT...CLINTON...CEDAR...MUSCATINE...
IN THE NORTHWEST PART OF ILLINOIS
ROCK-ISLAND...WHITESIDE...
AT 4 PM CDT RADAR SHOWS NUMEROUS SHOWERS AND THUNDERSTORMS OVER EAST
IOWA MOVING INTO WESTERN ILLINOIS. ONE INCH RAINFALL WAS REPORTED IN
CENTRAL MUSCATINE COUNTY BEWTEEN 330 PM AND 345 PM.
ANY ADDITIONAL RAINFALL OF THIS MAGNITUDE WILL CAUSE RAPID RISES
ON AREA STREAMS AND RIVERS.
FLASH FLOOD WARNING MEANS FLASH FLOODING IS OCCURRING OR IS
IMMINENT IN THE SPECIFIED AREA.
PERSONS ALONG OR NEAR STREAMS SUBJECT TO FLASH FLOODING OR SHARP
RISES SHOULD BE PREPARED TO MOVE TO A PLACE OF SAFETY IMMEDIATELY.
MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO
CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY.
NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT.
IF TIMWE PERMITS...ASK THE NEAREST LAW ENFORECMENT AGENCY TO RELAY
YOUR REPORT OF FLOODING TO THE NATIONAL WEATHER SERVICE.
ATTN ISP 7 AND 1
KRAEMERWhat 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, 3:00 PM CDT, 1 hour 3 minutes before
ILZ004-IAZ015-162100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOLINE IL 255 PM CDT SAT JUN 16 1990 ...STRONG THUNDERSTORMS AGAIN IN EASTERN IOWA... AT 250 PM CDT RADAR SHOWS A LINE OF VERY STRONG THUNDERSTORMS IN EASTERN IOWA...EXTENDING FROM NEAR IOWA CITY TO FAIRFIELD IA EXTENDING SOUTH INTO NORTHERN MISSOURI. THE THUNDERSTORMS WERE MOVING EAST AT 30 MPH AND SHOULD REACH A MUSCATINE...BURLINGTON LINE SHORTLY BEFORE 4 PM CDT. P$ERSONS IN THE PATH OF THESE THUNDERSTORMS CAN EXPECT HEAVY RAINFALL ALONG WITH GUSTY WINDS OF 40 TO 50 MPH AND DANGEROUS LIGHTNING. KRAEMER
Special weather statement, Jun 16, 3:36 PM CDT, 27 minutes before
ILZ004-IAZ015-162130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOLINE IL 330 PM CDT SAT JUN 16 1990 ...THUNDERSTORMS ROLLING INTO EASTERN IOWA... AT 325 PM CDT RADAR SHOWS A LINE OF STRONG THUNDERSTORMS IN EASTERN IOWA...EXTENDING ACROSS WESTERN CEDAR AND WESTERN MUSCATINE COUNTIES...ABOUT 40 MILES WEST OF THE QUAD CITIES.. TO NEAR BURLINGTON IA. WHILE THE THUNDERSTORMS HAVE DECREASED IN INTENSITY..BRIEF GUSTY WINDS ALONG WITH HEAV7Y RAINFALL IS STILL LIKELY. IOWA CITY AIRPORT REPORTED WIND GUSTS TO 43 MPH AROUND 315 PM CDT. ANY ADDITONAL RAINFALL IN CEDAR AND MUSCATINE COUNTIES WILL CAUSE ADDITIONAL RISES ON COUNTY STREAMS AND RIVERS. KRAEMER
The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 16, 7:52 AM CDT | Flash Flood Warning | DVN | Cedar, Clinton, Muscatine, Scott | 4 hr |
| Jun 16, 10:35 AM CDT | Flash Flood Warning | DVN | Jones | 4 hr |
| Jun 16, 11:52 AM CDT | Flash Flood Warning | DVN | Clinton | 4 hr |
| Jun 16, 11:52 AM CDT | Flash Flood Warning | DVN | Cedar, Scott | 4 hr |
| Jun 16, 1:28 PM CDT | Flash Flood Warning | DVN | Jones | 4 hr |
| Jun 16, 4:03 PM CDT | Flash Flood Warning | DVN | Cedar, Muscatine, Scott | 3 hr |
| Jun 16, 7:52 AM CDT | Flash Flood Warning | DVN | Rock Island | 4 hr |
| Jun 16, 8:48 AM CDT | Flash Flood Warning | DVN | Whiteside | 3 hr |
| Jun 16, 4:18 PM CDT | Tornado Warning | DVN | Mercer | 27 min |
| Jun 16, 5:07 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Whiteside | 38 min |
Nearby
Flash Flood Warnings in Iowa, 1990Flash 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.