Alert archive / Iowa / Tornado Warnings in 1988

Tornado Warning 1, NWS Des Moines, IA

March 24, 1988Cerro Gordo County, Iowa

NWS Des Moines, IA issued this tornado warning at Mar 24, 1988, 3:08 PM CST for Cerro Gordo County, Iowa. It was in force for 37 min.

The area

The counties it named.

The facts

Issued
Mar 24, 1988, 3:08 PM CST (21:08 UTC)
Expired
Mar 24, 1988, 3:45 PM CST
In force
37 min
Issued by
NWS Des Moines, IA
Area
Whole counties

County Cerro Gordo 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

Minneapolis, MN (KSTC), launched 12:00Z, 9.1 hours before the alert went out and 198 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, Minneapolis, MN at 12:00Z on 1988-03-24Temperature 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, Minneapolis, MN at 12:00Z on 1988-03-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 351 square meters per square second.19395878Sfc1 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
1383 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
351 m²/s²
0-3 km storm-relative helicity
427 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KDSM 242108
TORALO
IAC033-242145-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING 
NATIONAL WEATHER SERVICE WATERLOO IA
ISSUED BY DES MOINES IA
308 PM CST THU MAR 24 1988

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 345 PM CST FOR PEOPLE IN THE FOLLOWING COUNTY

   IN THE NORTH CENTRAL PART OF IOWA
      EASTERN CERRO GORDO

AT 300 PM...A TORNADO WAS REPORTED ON THE GROUND ABOUT 4 MILES
NORTH 1 1/2 EAST OF CLEAR LAKE.  THE TORNADO WAS MOVING EAST-
NORTHEAST AT 25 MILES AN HOUR.

IF A TORNADO APPROACHES...TAKE COVER IMMEDIATELY.  A BASEMENT...
INTERIOR HALLWAY...OR ROOM ON THE LOWEST FLOOR IS THE SAFEST
PLACE IN MOST BUILDINGS.  ICF YOU ARE IN A MOBILE HOME OR AN
AUTOMOBILE...LEAVE AT ONCE.  TAKE COVER IN A STORM SHELTER...OR LIE
IN A DITCH OR DEPRESSION.

MCQUIRTER

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, Mar 24, 1:33 PM CST, 1 hour 35 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
130 PM CST THU MAR 24 1988

...A TORNADO WATCH CONTINUES FOR A LARGE PORTION OF  CENTRAL AND
   EASTERN IOWA UNTIL 600 PM THIS EVENING...

AT 125 PM...A LINE OF VERY HEAVY THUNDERSTORMS STRETCHED FROM HUMBOLDT
SOUTH TO JEFFERSON...TO 50 MILES WEST OF DES MOINES TO CLARINDA WHICH IS
75 MILES SOUTHWEST OF DES MOINES.

THE LINE WAS MOVING EAST AT 20 MILES AN HOUR.

HEAVY RAIN...SMALL HAIL...AND BRIEF GUSTY WINDS HAVE BEEN REPORTED WITH
THESE STORMS.

IN ADDITION...SHOWERS AND THUNDERSTORMS WERE RAPIDLY DEVELOPING OVER
SOUTH CENTRAL AND CENTRAL IOWA...JUST WEST AND SOUTH OF DES MOINES.
THE HEAVIEST STORM WAS LOCATED JUST EAST OF MOUNT AYR OR NORTH OF LAMONI
IN SOUTH CENTRAL IOWA.

MCQUIRTER/SCOTT
Special weather statement, Mar 24, 2:34 PM CST, 34 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
230 PM CST THU MAR 24 1988

A TORNADO WATCH CONTINUES FOR A LARGE PORTION OF CENTRAL AND EASTERN
IOWA UNTIL 600 PM THIS EVENING...

AT 220 PM...
A LINE OF VERY HEAVY THUNDERSTORMS STRETCHED FROM JUST WEST OF MASON
CITY TO SOUTH THROUGH BOONE CENTRAL IOWA TO 20 MILES WEST OF LAMONI.

THE SHOWERS AND THUNDERSTORMS WERE MOVING EAST AT 25 MILES AN HOUR.

THE STRONGEST STORM WAS LOCATED NEAR AFTON WHICH IS ABOUT 30 MILES SOUTH
OF DES MOINES.

VERY HEAVY RAINS...PEA SIZE HAIL...AND WIND GUSTS UP TO 40 MILES AN HOUR
WERE REPORTED AT BOONE BETWEEN 200-220 PM THIS AFTERNOON.

NO SEVERE WEATHER HAS BEEN REPORTED IN IOWA SINCE 100 PM.

MCQUIRTER/SCOTT
Special weather statement, Mar 24, 3:02 PM CST, 6 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
300 PM CST THU MAR 24 1988

TORNADO WATCH NUMBER 21 IS NO LONGER IN EFFECT FOR THE FOLLOWING
COUNTIES...

KOSSUTH             WINNEBAGO            HANCOCK
HUMBOLDT            WRIGHT               WEBSTER
HAMILTON            GREENE               BOONE
GUTHRIE             DALLAS               ADAIR
MADISON             UNION                RINGGOLD

THE THUNDERSTORMS HAV<E MOVED TO THE EAST OF THESE AREAS AND ONLY
SHOWERS CAN BE EXECTED THE NEXT FEW HOURS.

THE TORNADO WATCH REMAINS IN EFFECT GENERALLY EAST OF A LINE FROM
MASON CITY TO DES MOINES AND LAMONI UNTIL 6PM CST.

ADAMS

The office that day

Everything else NWS Des Moines, IA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 24, 3:14 PM CSTSevere Thunderstorm WarningDMXWarren26 min
Mar 24, 3:47 PM CSTSevere Thunderstorm WarningDMXFloyd, Howard, Mitchell28 min
Mar 24, 4:21 PM CSTSevere Thunderstorm WarningDMXJasper19 min
Mar 24, 4:21 PM CSTSevere Thunderstorm WarningDMXPoweshiek39 min
Mar 24, 4:53 PM CSTSevere Thunderstorm WarningDMXBenton, Tama25 min

Nearby

Tornado Warnings in Iowa, 1988Every tornado warning in 1988Tornadoes in 1988

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.