Severe Thunderstorm Warning 58, NWS Des Moines, IA

IAZALL-130040-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE DES MOINES IA
645 PM CDT TUE JUN 12 1990

...A TORNADO WATCH REMAINS IN EFFECT FOR MUCH OF IOWA UNTIL 10 PM
THIS TUESDAY EVENING...

AT 633 PM CDT...A SMALL AREA OF VERY STRONG THUNDERSTORMS WAS
LOCATED OVER NORTH CENTRAL IOWA...IN A 15 MILE WIDE AREA...BETWEEN
IOWA FALLS AND DAYTON...OR FROM 40 MILES WEST OF WATERLOO...TO 50
MILES NORTHWEST OF DES MOIMES.  THESE STORMS WERE MOVING NORTHEAST
AT 35 MILES AN HOUR.

THESE VERY STRONG STORMS HAVE BEEN PRODUCING VERY LARGE AMOUNTS OF
RAIN...FREREQUENT DANGEROUS LIGHTNING...AND CUULD ALSO PRODUCED
BRIEF STRONG GUSTY WIND AND HAIL.

PEOPLE IN THE PATH OF THESE |STRONG THUNDERSTORMS SHOULD BE PREPARED
TO SEEK SHELTER IMMEDIATELY SHOULD THREATENING WEATHER APPROACH.
OVER THE REMAINDER OF NORTHEAST...NORTH CENTRAL AND NORTHWEST IOWA...
SHOWERS AND SCATTERED THUNDERSTORMS CONTINUED TO DEVELOP.

WPM/KAS

IAZALL-130100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
705 PM CDT TUE JUN 12 1990

...A TORNADO WATCH REMAINS IN EFFECT FOR MUCH OF IOWA UNTIL 10 PM
THIS TUESDAY EVENING...

...A TORNADO WATCH IS IN EFFECT THIS TUESDAY EVENING AND WEDNESDAY
MORNING FOR PORTIONS OF WESTERN AND NORTHERN IOWA...

AT 700 PM CDT...A SMALL AREA OF INTENSE THUNDERSTORMS WAS LOCATED
OVER NORTH CENTRAL IOWA...IN A 15 MILE WIDE AREA...BETWEEN
SHEFFIELD AND WEBSTER CITY...OR FROM 15 MILES SOUTH OF MASON CITY
TO 55 MILES SOUTHWEST OF MASON CITY.  THESE STORMS WERE MOVING
NORTHEAST AT 35 MILES AN HOUR.

THESE INTENSE STORMS HAVE BEEN PRODUCING VERY LARGE AMOUNTS OF
RAIN...FREREQUENT DANGEROUS LIGHTNING...AND COULD ALSO PRODUCE
BRIEF STRONG GUSTY WIND AND HAIL.

WPM/KAS

IA002-003-007-130200

SPECIAL WEATHER STATEMENT AND WEATHER UPDATE FOR NORTHEAST IOWA
NATIONAL WEATHER SERVICE WATERLOO IA
715 PM CDT TUE JUN 12 1990

...TORNADO WATCH FOR NORTHEAST IOWA UNTIL 1000 PM CDT...

AT 715 PM CDT SHOWERS AND THUNDERSTORMS WERE OCCURRING IN A 45 MILES
WIDE BAND FROM FORT DODGE WEST OF I35 TO ABOUT 10 MILES SOUTHEAST OF
MASON CITY.  THIS AREA OF THUNDERSTORMS WAS PRODUCING BRIEF HEAVY
RAIN...SOME SMALL HAIL POSSIBLE AT TIMES AND WIND GUST TO AROUND
30 TO 40 MILES AN HOUR. THE STORMS WERE MOVE NORTHEAST AT 35 MILES
AN HOUR.  THE REMAINDER OF NORTHEAST IOWA HAD VARIABLE CLOUDS WITH
SOME SUNSHINE FROM MASON CITY TO WATERLOO TO OELWEIN TO THE DECORAH AREA.
THE TEMPERATURES WERE IN THE 70S AND 80S WITH SOUTH WINDS 10 TO 25
MILES AN HOUR.

THE AREA OF SHOWERS AND THUNDERSTORMS WILL BE MOVING INTO THE MASON
CITY/ROCKFORD/ CHARLES CITY AND HAMPTON AREAS BY 810 PM. STORMS COULD
DEVELOP ANYWHERE IN NORTHEAST IOWA WITH STEADY WINDS AND TEMPERATURES.

IAZALL-130230-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE DES MOINES IA
745 PM CDT TUE JUN 12 1990

...A TORNADO WATCH REMAINS IN EFFECT FOR MUCH OF IOWA UNTIL 10 PM
THIS TUESDAY EVENING...

...A TORNADO WATCH IS IN EFFECT FOR WESTERN AND NORTHERN IOWA UNTIL
1 AM WEDNESDAY MORNING...

AT 733 PM...ISOLATED INTENSE THUNDERSTORMS WERE OVER NORTH CENTRAL
IOWA...25 MILES EAST AND 40 MILES SOUTH OF MASON CITY.  THE STORMS
WERE IN THE NORA SPRINGS...CLARION AND IOWA FALLS AREAS.

IN ADDITION TO THE EXCESSIVE RAINS...BRIEF STRONG WINDS AND HAIL
ARE MOST LIKELY OCCURRING WITH THESE STORMS.

THE STORMS WERE MOVING NORTHEAST AT 35 MILES AN HOUR AND WILL BE IN
THE DOWS...ROWAN...HAMPTON AND OSAGE AREAS BY 815 PM.

KS/WPM

LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
752 PM CDT TUE JUN 12 1990

    ...ALL TIME IN CDT...

TIME            EVENT

320 PM        TORNADO 3 MILE WEST OF ANITA/CASS COUNTY/

330 PM        TORNADO AT MASSENA /CASS COUNTY/

355 PM        TREES DOWN AND POWER LINES DOWN IN THE VICINITY OF
              BRIDGEWATER /ADAIR COUNTY/

505-515 PM    50 MPH WIND GUSTS BETWEEN RHODES AND MELBOURNE/MARSHALL
              COUNTY/

510 PM        6-8 INCH DIAMETER TREE LIMBS DOWN AND TOP OF RADIO TOWER
              BENT.

515 PM          56 MPH WIND REPORTED AT MARSHALLTOWN/MARSHALL COUNTY/

740 PM          TORNADO JUST SOUTH OF DOWS IN EXTREME SOUTHEAST WRIGHT
                COUNTY.

JM

IAZALL-130230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
805 PM CDT TUE JUN 12 1990

...A TORNADO WATCH REMAINS IN EFFECT FOR MUCH OF IOWA UNTIL 10 PM
TONIGHT...

...A TORNADO WATCH IS IN EFFECT FOR WESTERN AND NORTHERN IOWA UNTIL
1 AM WEDNESDAY MORNING...

AT 800 PM...ISOLATED INTENSE THUNDERSTORMS WERE OVER NORTH CENTRAL
IOWA...25 MILES SOUTH OF MASON CITY NEAR HAMPTON.

IN ADDITION TO THE EXCESSIVE RAINS...BRIEF STRONG WINDS AND HAIL
ARE MOST LIKELY OCCURRING WITH THESE STORMS.

THE STORMS WERE MOVING NORTHEAST AT 35 MILES AN HOUR...MOVING BETWEEN
SHEFFIELD AND DUMONT AND INTO THE MARBLE ROCK AREA BY 900 PM.
/
ALSO...SCATTERED SHOWERS AND THUNDERSTORMS WERE OVER THE NORTH CENTRAL
AND NORTHEAST COUNTIES...NORTH OF A FORT DODGE/WATERLOO LINE.

KS/WPM