Alert archive / Iowa / Tornado Warnings in 1992

Tornado Warning 7, NWS Quad Cities, IA

July 13, 1992Jones County, Iowa

NWS Quad Cities, IA issued this tornado warning at Jul 13, 1992, 3:50 PM CDT for Jones County, Iowa. It was in force for 25 min.

The area

The counties it named.

The facts

Issued
Jul 13, 1992, 3:50 PM CDT (20:50 UTC)
Expired
Jul 13, 1992, 4:15 PM CDT
In force
25 min
Issued by
NWS Quad Cities, IA
Area
Whole counties

County Jones County, IA

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 8.8 hours before the alert went out and 359 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.

Skew-T log-pSkew-T log-p diagram, Green Bay/Straub, WI at 12:00Z on 1992-07-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Green Bay/Straub, WI at 12:00Z on 1992-07-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -69 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
817 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
-69 m²/s²
0-3 km storm-relative helicity
81 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What 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, Jul 13, 3:16 PM CDT, 34 minutes before
ILZ004-IAZ078-088-089-099-132130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOLINE IL
315 PM CDT MON JUL 13 1992

...SHOWERS AND THUNDERSTORMS ARE APPROACHING THE BISTATE AREA..

AT 315 PM CDT...A LINE OF SHOWERS AND THUNDERSTORMS WERE BEGINNING TO
MOVE INTO WESTERN PORTIONS OF THE BISTATE AREA.  THIS LINE OF STORMS
WILL MOVE INTO CEDAR COUNTY IOWA BY 330 PM.  AT 315 PM...THE LINE WAS
LOCATED FROM DUBUQUE IOWA...TO CEDAR RAPIDS..TO 20 MILES NORTH OF
OTTUMWA.

THE LINE WAS MOVING NORTHEAST AT 35 MILES AN HOUR...AND WILL LIKELY
PRODUCE STRONG WIND AND SMALL HAIL.  PERSONS IN CEDAR COUNTY SHOULD
EXPECT STRONG WINDS BY 330 PM CDT.

LAGUE
Special weather statement, Jul 13, 3:40 PM CDT, 10 minutes before
ILZ004-IAZ078-088-089-099-132130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOLINE IL
335 PM CDT MON JUL 13 1992

...SHOWERS AND THUNDERSTORMS ARE MOVING INTO THE BISTATE AREA..

AT 335 PM CDT...A LINE OF SHOWERS AND THUNDERSTORMS WERE MOVING INTO
CEDAR COUNTY IOWA.  THESE STORMS PRODUCED DAMAGE NEAR CEDAR RAPIDS IOWA
WITH WIND GUSTS TO 50 MILES AN HOUR.  PERSONS IN CEDAR COUNTY SHOULD
EXPECT STRONG WIND GUSTS BETWEEN 330 AND 415 PM CDT.

THE THUNDERSTORMS WERE PART OF A LINE OF STRONG STORMS WITH HEAVY RAIN
WHICH EXTENDED FROM DUBUQUE IOWA...TO CEDAR COUNTY...TO NEAR OTTUMA.
THE SHOWERS AND THUNDERSTORMS WERE MOVING NORTHEAST AT 35 MILES AN
HOUR.

LAGUE
Special weather statement, Jul 13, 3:48 PM CDT, 2 minutes before
ILZ004-IAZ078-088-089-099-132130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOLINE IL
345 PM CDT MON JUL 13 1992

...THUNDERSTORMS WITH STRONG WINDS ARE MOVING THROUGH WESTERN AND
   NORTHERN PORTIONS OF THE BISTATE AREA...

AT 345 PM CDT...STRONG THUNDERSTORMS WITH HEAVY RAIN AND GUSTY WINDS WERE
IN CENTRAL CEDAR COUNTY...AND MOVING INTO NORTHWEST CLINTON COUNTY IOWA.
WIND GUSTS TO 50 MILES AN HOUR CAN BE EXPECTED WITH THESE STORMS...AS WELL
AS VERY HEAVY RAIN AND SMALL HAIL.

THE THUNDERSTORMS WERE PART OF A LINE OF STRONG STORMS WITH HEAVY RAIN
WHICH EXTENDED FROM DUBUQUE IOWA...TO CEDAR COUNTY...TO NEAR OTTUMA.
OTHER STORMS WERE DEVELOPING IN WESTERN CLINTON COUNTY..AND IN WHIDTESIDE
COUNTY IOWA.  THE STORMS WERE MOVING NORTHEAST AT 35 MILES AN HOUR.

LAGUE

The office that day

Everything else NWS Quad Cities, IA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 13, 3:36 PM CDTSevere Thunderstorm WarningDVNJones39 min
Jul 13, 4:00 PM CDTSevere Thunderstorm WarningDVNJackson30 min
Jul 13, 4:03 PM CDTSevere Thunderstorm WarningDVNClinton27 min
Jul 13, 4:42 PM CDTSevere Thunderstorm WarningDVNJefferson48 min
Jul 13, 4:42 PM CDTSevere Thunderstorm WarningDVNJones48 min
Jul 13, 5:22 PM CDTSevere Thunderstorm WarningDVNMuscatine, Scott53 min
Jul 13, 5:31 PM CDTSevere Thunderstorm WarningDVNLouisa29 min

Nearby

Tornado Warnings in Iowa, 1992Every tornado warning in 1992Tornadoes in 1992

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.