Alert archive / Iowa / Flash Flood Warnings in 1990
Flash Flood Warning 1, NWS Quad Cities, IA
NWS Quad Cities, IA issued this flash flood warning at Jun 16, 1990, 7:52 AM CDT for 4 counties in Iowa. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Jun 16, 1990, 7:52 AM CDT (12:52 UTC)
- Expired
- Jun 16, 1990, 12:00 PM CDT
- In force
- 4 hr
- Issued by
- NWS Quad Cities, IA
- Area
- Whole counties
Counties Cedar County, IA, Clinton County, IA, Muscatine County, IA, Scott County, IA
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, 0.9 hours before the alert went out and 381 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 161252
FFWMLI
IAC163-045-031-139-ILC161-161700-
BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOLINE IL
752 AM CDT SAT JUN 16 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING
EFFECTIVE UNTIL 1200 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...
STRONG THUNDERSTORMS WITH HEAVY RAINFALL WAS OCCURRING OVER
EAST CENTRAL IA AND PARTS OF EXTREME NORTHWEST ILLINOIS.
LOWDEN IA IN NORTHEAST CEDAR COUNTY IA REPORTED 3 INCHES OF
RAIN BETWEEN 5 AND 7 AM CDT WHILE IN MUSCATINE COUNTY 21/2
INCHES OF RAIN FELL IN 30 MINUTE SPAN AROUND 7 30 THIS MORNING.
THE THUNDERSTORMS WERE MOVING TOWARD THE EAST AT 30 MPH.
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 TIME 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, 7:39 AM CDT, 13 minutes before
ILZ004-IAZ015-161330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOLINE IL 740 AM CDT SAT JUN 16 1990 ...SEVERE THUNDERSTORM WATCH FOR SOUTHEAST IOWA UNTIL 11 AM CDT... STRONG THUNDERSTORMS WITH HEAVY RAIN AND SMALL HAIL CONTINUE TO TRACK ACROSS EXTREME EAST CENTRAL IOWA. AT 730 AM CDT...RADAR SHOWED STRONG THUNDERSTORMS OVER WESTERN SCOTT AND EASTERN MUSCATINE COUNTIES IN EAST CENTRAL IOWA...20 MILES NORTH OF MOLINE NEAR DONAHUE TO 20 WEST OF MOLINE AROUND MUSCATINE. THESE THUNDERSTORMS HAVE PRODUCED VERY HEAVY RAIN AND LOCALIZED FLOODING HAS BEEN REPORTED AROUND WILTON IN NORTHERN MUSCATINE COUNTY. THE THUNDERSTORMS WERE MOVING NORTHEAST AT 30 MILES AN HOUR AND WILL MOVE THROUGH SCOTT COUNTY IOWA BETWEEN 745 AM AND 845 AM CDT. FOBERT
The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| 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, 4:03 PM CDT | Flash Flood Warning | DVN | Clinton | 3 hr |
Nearby
Flash Flood Warnings in Iowa, 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.