Alert archive / Illinois / Flash Flood Warnings in 1993
Flash Flood Warning 9, NWS Quad Cities, IA
NWS Quad Cities, IA issued this flash flood warning at Jun 30, 1993, 1:35 AM CDT for Henry County, Illinois. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Jun 30, 1993, 1:35 AM CDT (06:35 UTC)
- Expired
- Jun 30, 1993, 4:30 AM CDT
- In force
- 3 hr
- Issued by
- NWS Quad Cities, IA
- Area
- Whole counties
County Henry County, IL
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 00:00Z, 6.6 hours before the alert went out and 385 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
- 1074 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- -27 m²/s²
- 0-3 km storm-relative helicity
- 102 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 300635
FFWMLI
IAC163-ILC073-300930-
BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOLINE IL
135 AM CDT WED JUN 30 1993
THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING
EFFECTIVE UNTIL 430 AM CDT FOR PEOPLE IN THE FOLLOWING
COUNTIES
IN THE EXTREME EAST PART OF IOWA
SCOTT...THE CITY OF DAVENPORT...THE CITY OF BETTENDORF...
IN THE NORTHWEST PART OF ILLINOIS
HENRY...
AT 130 AM CDT...CREEKS AND STREAMS IN SCOTT COUNTY IOWA...INCLUDING
DUCK CREEK AND SILVER CREEK...AND THE GREEN RIVER IN HENRY COUNTY
ILLINOIS WERE REPORTED BANKFULL AND RISING DUE TO THE HEAVY RAINS
FROM THE THUNDERSTORMS THAT PASSED THROUGH. WITH MORE SHOWERS
EXPECTED...WATER LEVELS WILL CONTINUE RISING. IF YOU LIVE ALONG
DUCK CREEK...SILVER CREEK...OR THE GREEN RIVER IN HENRY COUNTY MOVE
TO HIGHER GROUND NOW.
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:.
T MEYER 0635ZWhat 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 29, 10:30 PM CDT, 3 hours 5 minutes before
ILZ004-IAZ078-088-089-099-290430- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOLINE IL 1030 PM CDT TUE JUN 29 1993 ...INTENSE THUNDERSTORMS BEARING DOWN ON THE BISTATE... AT 1025 PM CDT...RADAR INDICATED A LINE OF INTENSE THUNDERSTORMS EXTENDING NEAR DYERSVILLE IOWA...OR 75 MILES NORTH OF THE QAUD CITIES...TO KEOTA IOWA ...OR 75 MILES WEST OF THE QUAD CITIES...MOVING SOUTHEAST AT 35 MILES AN HOUR. THIS LINE HAS PRODUCED MANY REPORTS OF SEVERE WEATHER...INCLUDING TORNADOES... LARGE HAIL...AND EXTREMELY HIGH WINDS. THIS LINE WILL ENTER CEDAR COUNTY IOWA SHORTLY AND REACH MECHANICSVILLE IOWA IN THE NEXT 10 MINUTES. PERSONS IN CEDAR COUNTY IOWA SHOULD WATCH FOR RAPIDLY CHANGING WEATHER CONDITIONS AND BE READY TO TAKE SHELTER IMMEDIATELY IF SEVERE WEATHER THREATENS. PERSONS IN THE REST OF THE BISTATE SHOULD WATCH FOR RAPIDLY CHANGING WEATHER CONDITIONS AND LISTEN FOR FURTHER STATEMENTS. T MEYER
Special weather statement, Jun 29, 10:35 PM CDT, 3 hours before
ILZ004-IAZ078-088-089-099-290430- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOLINE IL 1030 PM CDT TUE JUN 29 1993 ...INTENSE THUNDERSTORMS BEARING DOWN ON THE BISTATE... AT 1025 PM CDT...RADAR INDICATED A LINE OF INTENSE THUNDERSTORMS EXTENDING NEAR DYERSVILLE IOWA...OR 75 MILES NORTH OF THE QAUD CITIES...TO KEOTA IOWA ...OR 75 MILES WEST OF THE QUAD CITIES...MOVING SOUTHEAST AT 35 MILES AN HOUR. THIS LINE HAS PRODUCED MANY REPORTS OF SEVERE WEATHER...INCLUDING TORNADOES... LARGE HAIL...AND EXTREMELY HIGH WINDS. THIS LINE WILL ENTER CEDAR COUNTY IOWA SHORTLY AND REACH MECHANICSVILLE IOWA IN THE NEXT 10 MINUTES. PERSONS IN CEDAR COUNTY IOWA SHOULD WATCH FOR RAPIDLY CHANGING WEATHER CONDITIONS AND BE READY TO TAKE SHELTER IMMEDIATELY IF SEVERE WEATHER THREATENS. PERSONS IN THE REST OF THE BISTATE SHOULD WATCH FOR RAPIDLY CHANGING WEATHER CONDITIONS AND LISTEN FOR FURTHER STATEMENTS. T MEYER
Local storm report, Jun 30, 1:07 AM CDT, 28 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DUBUQUE IA
108 AM CDT WED JUN 30 1993
...PRELIMINARY STORM REPORT FOR WEDNESDAY JUNE 30TH...
DELAWARE COUNTY
1014 PM CDT...REPORT FROM MANCHESTER AND RYAN AREAS OF TREES
DOWNED.
CLAYTON COUNTY
1021 PM CDT...EIGHT POWERLINE POLES REPORTED DOWN IN ELKADER AREAS
RECEIVED FROM CLAYTON COUNTY SHERIFFS DEPARTMENT.
DUBUQUE COUNTY
1045 PM CDT...60 TO 70 MILES AN HOUR WINDS REPORTED AROUND WORTHINGTON
BY CIVIL DEFENSE DIRECTOR.
1115 PM CDT...WIND GUST TO 55 MILES AN HOUR MEASURED AT NWS
OFFICE AT DUBUQUE REGIONAL AIRPORT.
JACKSON COUNTY
1115 PM CDT...WIND GUST TO 61 MILES AN HOUR REPORTED IN MAQUOKETA.
REPORTED BY LAW ENFORCEMENT CENTER IN MAQUOKETA.
JONES COUNTY
1125 PM CDT...TREES REPORTED DOWN NEAR ANAMOSA. TREE LIMB FELL ON
CAR.
1135 PM CDT...70 TO 80 MILE AN HOUR WINDS REPORTED BY CIVIL DEFENSE
DIRECTOR. POWERLINES DOWN AND TREES DOWN IN THIS AREA.
1148 PM CDT...TOWN OF MONTICELLO REPORTING WINDS OF 60 TO 70 MILES AN
HOUR. REPORTED BY CIVIL DEFENSE DIRECTOR.
LAFAYETTE COUNTY
1152 PM CDT...TDREES DOWNED IN TOWN OF DARLINGTON. REPORT FROM LAFAYETTE
COUNTY LAW ENFORCEMENT.
ROWLANDLocal storm report, Jun 30, 1:08 AM CDT, 27 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DUBUQUE IA
108 AM CDT WED JUN 30 1993
...PRELIMINARY STORM REPORT FOR WEDNESDAY JUNE 30TH...
DELAWARE COUNTY
1014 PM CDT...REPORT FROM MANCHESTER AND RYAN AREAS OF TREES
DOWNED.
CLAYTON COUNTY
1021 PM CDT...EIGHT POWERLINE POLES REPORTED DOWN IN ELKADER AREAS
RECEIVED FROM CLAYTON COUNTY SHERIFFS DEPARTMENT.
DUBUQUE COUNTY
1045 PM CDT...60 TO 70 MILES AN HOUR WINDS REPORTED AROUND WORTHINGTON
BY CIVIL DEFENSE DIRECTOR.
1115 PM CDT...WIND GUST TO 55 MILES AN HOUR MEASURED AT NWS
OFFICE AT DUBUQUE REGIONAL AIRPORT.
JACKSON COUNTY
1115 PM CDT...WIND GUST TO 61 MILES AN HOUR REPORTED IN MAQUOKETA.
REPORTED BY LAW ENFORCEMENT CENTER IN MAQUOKETA.
JONES COUNTY
1125 PM CDT...TREES REPORTED DOWN NEAR ANAMOSA. TREE LIMB FELL ON
CAR.
1135 PM CDT...70 TO 80 MILE AN HOUR WINDS REPORTED BY CIVIL DEFENSE
DIRECTOR. POWERLINES DOWN AND TREES DOWN IN THIS AREA.
1148 PM CDT...TOWN OF MONTICELLO REPORTING WINDS OF 60 TO 70 MILES AN
HOUR. REPORTED BY CIVIL DEFENSE DIRECTOR.
LAFAYETTE COUNTY
1152 PM CDT...TREES DOWNED IN TOWN OF DARLINGTON. REPORT FROM LAFAYETTE
COUNTY LAW ENFORCEMENT.
ROWLANDThe office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 11:36 PM CDT | Severe Thunderstorm Warning | DVN | Mercer, Rock Island | 69 min |
| Jun 30, 12:06 AM CDT | Severe Thunderstorm Warning | DVN | Henry | 54 min |
| Jun 30, 12:17 AM CDT | Severe Thunderstorm Warning | DVN | Henry, Whiteside | 58 min |
Nearby
Flash Flood Warnings in Illinois, 1993Every flash flood warning in 1993
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.