Alert archive / Iowa / Tornado Warnings in 1989
Tornado Warning 1, NWS Quad Cities, IA
NWS Quad Cities, IA issued this tornado warning at May 24, 1989, 10:49 PM CDT for Louisa County, Muscatine County, Iowa. It was in force for 26 min.
The area
The counties it named.
The facts
- Issued
- May 24, 1989, 10:49 PM CDT (03:49 UTC)
- Expired
- May 24, 1989, 11:15 PM CDT
- In force
- 26 min
- Issued by
- NWS Quad Cities, IA
- Area
- Whole counties
Counties Louisa County, IA, Muscatine 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
Peoria Regional, IL (KPIA), launched 00:00Z, 3.8 hours before the alert went out and 153 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
- NaN m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 230 m²/s²
- 0-3 km storm-relative helicity
- 347 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.9
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KMLI 250349
TORMLI
IAC139-115-250415-
BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOLINE IL
1049 PM CDT WED MAY 24 1989
THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING
EFFECTIVE UNTIL 1115 PM CDT FOR PEOPLE IN THE FOLLOWING
COUNTIES
IN THE EXTREME EAST PART OF IOWA
WESTERN MUSCATINE...WESTERN LOUISA
AT 1045 PM CDT RADAR SHOWS A POSSIBLE TORNADO 15 MILES SOUTHEAST
OF IOWA CITY NEAR WEST LIBERTY IOWA. THIS STORM WAS MOVING EAST
AT 20 MILES AN HOUR.
SOME CITIES/TOWNS IN THE PATH OF THIS STORM INCLUDE... WEST LIBERTY
...NICHOLS...CONESVILLE...AND COLUMBUS JUNCTION.
THIS IS A DANGEROUS STORM SITUATION. ACT QUICKLY. IF YOU ARE
IN THE PATH OF THIS TORNADO MOVE TO A SHELTER BELOW GROUND IF
AVAILABLE. OTHERWISE...GO TO A SMALL INTERIOR ROOM ON THE LOWEST
FLOOR POSSIBLE. AVOID WINDOWS. ABANDON CARS AND MOBILE HOMES
FOR A REINFORCED BUILDING OR GET INTO A DITCH OR CULVERT.
IF TIME PERMITS..ASK THE NEAREST LAW ENFORCEMENT AGENCY TO RELAY
YOUR REPORT OF SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE.
PHILLIPSWhat forecasters said that day
The local office's own words before this tornado 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, May 24, 4:52 PM CDT, 5 hours 57 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DUBUQUE IA 450 PM CDT WED MAY 24 1989 ...TORNADO WATCH IS IN EFFECT FOR MOST OF THE TRI-STATE AREA UNTIL 10 PM... AT 445 PM CDT WEATHER RADAR INDICATED AN AREA OF THUNDERSTORMS WHICH WAS IN SOUTHEAST MINNESOTA HAD MOVED INTO WEST CENTRAL WISCONSIN NEAR LACROSSE. MOVEMENT OF THESE STORMS WAS TO THE NORTHEAST AT 30 TO 35 MILES AN HOUR. AS OF 445 PM NO SEVERE WEATHER HAD BEEN REPORTED IN THE 'TRI-STATE AREA. PERSONS IN THE TRI-STATE AREA SHOULD KEEP ABREAST OF CHANGING WEATHER CONDITIONS AND MONITIOR COMMERCIAL RADIO...TELEVISION OR NOAA WEATHER RADIO STATIONS. BAILEY
Special weather statement, May 24, 7:00 PM CDT, 3 hours 49 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DUBUQUE IA 700 PM CDT WED MAY 24 1989 ...TORNADO WATCH IS IN EFFECT FOR MOST OF THE TRI-STATE AREA UNTIL 10 PM... AT 655 PM CDT WEATHER RADAR INDICATED AN AREA OF ISOLATED SHOWERS WERE MOVING THROUGH CENTRAL DELAWARE COUNTY NEAR MANCHESTER...35 MILES EAST OF DUBUQUE. MOVEMENT OF THESE SHOWERS WAS TO THE EAST AT 35 MILES AN HOUR. AS OF 655 PM NO SEVERE WEATHER HAD BEEN REPORTED IN THE TRI-ST'ATE AREA. PERSONS IN THE TRI-STATE AREA SHOULD KEEP ABREAST OF CHANGING WEATHER CONDITIONS AND MONITIOR COMMERCIAL RADIO...TELEVISION OR NOAA WEATHER RADIO STATIONS. BAILEY
Special weather statement, May 24, 9:06 PM CDT, 1 hour 43 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DUBUQUE IA 906 PM CDT WED MAY 24 1989 ...TORNADO WATCH IS IN EFFECT FOR MOST OF THE TRI-STATE AREA UNTIL 10 PM... 900 PM CDT WEATHER RADAR INDICATED A LINE OF THUNDERSTORMS APPROACHING THE WESTERN EDGE OF THE TRI-STATE AREA. THESE STORMS HAVE PRODUCED PERIODS OF SEVERE WEATHER AS THEY HAVE MOVED THROUGH THE UPPER MID-WEST. MOVEMENT OF THESE STORMS WAS TO THE EAST AT 30 TO 35 MILES AN HOUR AN@D WILL CONTINUE TO MOVE TOWARD THE CENTRAL PART OF THE TRI-STATE AREA. PEOPLE ARE ADVISED TO BE AWARE OF CHANGING WEATHER CONDITIONS AND MONITOR THE LATEST FORECAST FROM THE NATIONAL WEATHER SERVICE. BAILEY
The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 24, 9:12 PM CDT | Severe Thunderstorm Warning | DVN | Delaware | 63 min |
| May 24, 10:09 PM CDT | Severe Thunderstorm Warning | DVN | Jones | 66 min |
| May 24, 11:12 PM CDT | Tornado Warning | DVN | Muscatine, Scott | 18 min |
Nearby
Tornado Warnings in Iowa, 1989Every tornado warning in 1989Tornadoes in 1989
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.