Alert archive / Iowa / Tornado Warnings in 1991
Tornado Warning 6, NWS Quad Cities, IA
NWS Quad Cities, IA issued this tornado warning at May 14, 1991, 2:45 PM CDT for Cedar County, Iowa. It was in force for 30 min.
The area
The counties it named.
The facts
- Issued
- May 14, 1991, 2:45 PM CDT (19:45 UTC)
- Expired
- May 14, 1991, 3:15 PM CDT
- In force
- 30 min
- Issued by
- NWS Quad Cities, IA
- Area
- Whole counties
County Cedar County, IA
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 7.8 hours before the alert went out and 389 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
- 2865 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 5 m²/s²
- 0-3 km storm-relative helicity
- 18 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 141945
TORMLI
IAC031-142015-
BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOLINE IL
245 PM CDT TUE MAY 14 1991
THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING
EFFECTIVE UNTIL 315 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY
IN THE EXTREME EAST PART OF IOWA
NORTH AND CENTRAL CEDAR
AT 2 40 PM CDT NUMEROUS FUNNEL CLOUD AND TORNADO SIGHTENINGS WERE
REPORTED 5 MILES NORTH OF TIPTON IOWA OR 35 MILES NORTHWEST OF
DAVENPORT IOWA. MOVEMENT WAS EAST AT 5 MPH.
SOME CITIES/TOWNS IN THE PATH OF THIS STORM INCLUDE... CLARENCE AND
LOWDEN.
REPORTS OF TORNADOS OR TORNADO DAMAGE SHOULD BE GIVEN TO A LAW
ENFORCEMENT AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE.
DO NOT USE YOUR CAR TO TRY TO OUTRUN A TORNADO. CARS ARE EASILY
TOSSED AROUND BY TORNADO WINDS. IF YOU ARE CAUGHT IN THE PATH OF
A TORNADO...LEAVE THE CAR AND GO TO A STRONG BUILDING. IF NO
STRUCTURE IS NEARBY...TAKE SHELTER IN A DITCH OR LOW SPOT.
MEYERWhat 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 14, 11:34 AM CDT, 3 hours 11 minutes before
ILZ004-IAZ015-141730- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOLINE IL 11 30 AM CDT TUE MAY 14 1991 ...THUNDERSTORMS DEVELOP ACROSS BISTATE AREA NORTH OF QUAD CITIES... SCATTERED SHOWERS AND THUNDERSTORMS HAVE BEEN DEVELOPING ACROSS THE BISTATE AREA THIS MORNING. THESE SHOWERS AND STORMS HAVE BECOME MORE ORGANIZED ACROSS EAST CENTRAL IOWA INTO NORTHWEST ILLINOIS SINCE 11 AM STRETCHING EAST/WEST JUST NORTH OF THE QUAD CITIES. THEIR MOVEMENT HAS BEEN A DRIFT TOWARD THE NORTHEAST AT AROUND 10 MPH. SOME OF THESE THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL, STRONG GUSTY WINDS AND SMALL HAIL. FURTHER THUNDERSTORM DEVELOPMENT IS EXPECTED THROUGH THE AFTERNOON. DICKEY
Special weather statement, May 14, 12:53 PM CDT, 1 hour 52 minutes before
ILZ004-IAZ015-141830- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOLINE IL 12 40 PM CDT TUE MAY 14 1991 ...VERY STRONG THUNDERSTORM WESTERN CLINTON COUNTY IOWA... THUNDERSTORMS STRETCHED ACROSS EAST IOWA INTO NORTHWEST ILLINOIS MORTH OF THE QUAD CITIES HAVE INCREASED IN INTENSITY IN THE EAST CENTRAL IOWA SECTION. AT 12 45 PM A THUNDERSTORM OVER WESTERN CLINTON COUNTY /20 MILES WEST OF CLINTON/ HAS BECOME VERY STRONG AND MAY BE PRODUCING HEAVY RAINFALL AND HAIL. THIS STORM IS DRIFTING SLOWLY TO THE NORTH AT AROUND 5 MPH. PERSONS SHOULD BE ALERT FOR CHANGING WEATHER CONDITIONS AND BE PREPARED TO MOVE TO A PLACE OF SAFETY IF THREATENING WEATHER APPROACHES. DICKEY
Special weather statement, May 14, 1:34 PM CDT, 1 hour 11 minutes before
ILZ004-IAZ015-141915- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOLINE IL 1 30 PM CDT TUE MAY 14 1991 ...THUNDERSTORM WESTERN CLINTON COUNTY IOWA DECREASES... THE VERY STRONG THUNDERSTORM IN WESTERN CLINTON COUNTY HAS DECREASED IN INTENSITY SINCE 12 45 PM. THIS STORM CONTINUES TO DRIFT SLOWLY TO THE NORTH AT AROUND 5 MPH. MEANWHILE FARTHER TO THE NORTHWEST IN LINN AND PARTS OF JONES COUNTIES, SEVERE THUNDERSTORMS WITH HEAVY RAIN AND HAIL WERE OCCURRING. CONDITIONS STILL REMAIN FAVORABLE FOR THUNDERSTORM DEVELOP ACROSS THE BISTATE AREA THIS AFTERNOON. PERSONS SHOULD BE ALERT FOR CHANGING WEATHER CONDITIONS AND BE PREPARED TO MOVE TO A PLACE OF SAFETY IF THREATENING WEATHEBR APPROACHES. DICKEY
Special weather statement, May 14, 2:15 PM CDT, 30 minutes before
ILZ004-IAZ015-142000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MOLINE IL 2 10 PM CDT TUE MAY 14 1991 AT 2 05 PM A POSSIBLE FUNNEL CLOUD WAS REPORTED OVER MOUNT VERNON IOWA ABOUT 10 MILES SOUTHEAST OF CEDAR RAPIDS. THIS POSSIBLE FUNNEL CLOUD WAS MOVING INTO THE NORTHWEST CORNER OF CEDAR COUNTY IOWA. IF YOU LIVE IN NORTHWEST OR NORTH CENTRAL CEDAR COUNTY BE PREPARED TO SEEK SHELTER IF NECCESARY. OTHER STRONG THUNDERSTORMS WERE LOCATED ACROSS NORTH CEDAR EXTENDING INTO NORTH SCOTT AND CENTRAL CLINTON COUNTIES. HEAVY RAIN AND HAIL ARE POSSIBLE WITH THESE STORMS. PERSONS SHOULD BE ALERT FOR CHANGING WEATHER CONDITIONS AND BE PREPARED TO MOVE TO A PLACE OF SAFETY IF THREATENINwG WEATHER APPROACHES. MEYER/DICKEY
The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 14, 6:26 AM CDT | Severe Thunderstorm Warning | DVN | Clayton | 34 min |
| May 14, 1:38 PM CDT | Tornado Warning | DVN | Delaware | 37 min |
| May 14, 2:01 PM CDT | Tornado Warning | DVN | Dubuque | 29 min |
| May 14, 3:23 PM CDT | Severe Thunderstorm Warning | DVN | Muscatine | 67 min |
| May 14, 3:37 PM CDT | Severe Thunderstorm Warning | DVN | Scott | 68 min |
Nearby
Tornado Warnings in Iowa, 1991Every tornado warning in 1991Tornadoes in 1991
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.