Severe Thunderstorm Warning 25, NWS Des Moines, IA

IOWA SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DES MOINES IOWA
1035 AM CDT SAT MAY 13 1995

HAZARD...WIDELY SCATTERED SEVERE THUNDERSTORMS WITH LARGE HAIL...
DAMAGING WINDS AND ISOLATED TORNADOES.

AREA OF CONCERN...SOUTHEAST THIRD OF IOWA...MAINLY SOUTHEAST OF
A CHARITON...CEDAR RAPIDS...TO DUBUQUE LINE. THIS INCLUDES THE CITIES
OF CEDAR RAPIDS...OTTUMWA...FAIRFIELD AND BURLINGTON.

TIMING DETAILS...SEVERE THUNDERSTORMS SHOULD DEVELOP BETWEEN 1 PM AND
4 PM OVER SOUTHEAST IOWA. THUNDERSTORMS WILL DEVELOP OVER THE REST OF
EASTERN IOWA THIS AFTERNOON.

METEOROLOGICAL COMMENTS...AN INTENSE LOW PRESSURE AREA OVER NORTHERN
KANSAS WILL MOVE NORTHEAST INTO NORTHWEST IOWA BY THIS EVENING.  A
COLD FRONT WILL MOVE EAST...SOUTH OF THE LOW ACROSS IOWA TODAY REACHING
EASTERN IOWA BY THIS AFTERNOON.  A FAVORABLE WIND PROFILE SUGGESTS
THE POTENTIAL FOR SUPERCELL DEVELOPMENT AND ISOLATED TORNADOES OVER
SOUTHEAST IOWA. ISOLATED SEVERE THUNDERSTORMS ARE ALSO POSSIBLE THIS
AFTERNOON ACROSS CENTRAL INTO NORTHERN IOWA JUST AHEAD OF THE COLD
FRONT.

PRECAUTIONS...EMERGENCY MANAGERS AND OTHER INTERESTS IN SOUTHEAST IOWA
SHOULD KEEP ALERT TO CHANGING WEATHER THIS AFTERNOON.  SPOTTER
ACTIVATION MAY BE REQUIRED. THE NEXT STATEMENT WILL BE ISSUED LATE
THIS MORNING.

SMITH

IOWA SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DES MOINES IOWA
1258 PM CDT SAT MAY 13 1995

HAZARD...THUNDERSTORMS ARE NOW FORMING INTO A LINE.  SOME STORMS MAY
CONTAIN LARGE HAIL...DAMAGING WINDS AND ISOLATED TORNADOES.

AREA OF CONCERN...WEST CENTRAL INTO NORTH CENTRAL IOWA FOR THE NEXT TWO
HOURS.  CITIES IN THEIS AREA INCLUDE FORT DODGE...CLARION...ALGONA...
BOONE...ATLANTIC AND GUTHRIE CENTER.

TIMING DETAILS...THUNDERSTORMS ARE BEGINING TO DEVELOP RAPIDLY OVER THE
AREA OF CONCERN.  FOR THE NEXT TWO HOUR PERSONS IN THIS AREA NEED TO
KEEP TUNED TO THE LATEST WEATHER INFORMATION IN CASE A WARNING IS
ISSUED.

METEOROLOGICAL COMMENTS...A COLD FRONT WAS BEGINNING TO PUSH INTO
WESTERN IOWA AT 1245 PM.  THUNDERSTORMS WILL CONTINUE TO BE A THREAT
ALONG THIS FRONT AS IT PUSHES INTO CENTRAL IOWA LATE THIS AFTERNOON.
THE WIND PROFILE REMAINS FAVORABLE FOR ISOLATED TORNADOES AND DAMAGING
WINDS.  AS THE SUN CONTINUES OVER CENTRAL AND EASTERN IOWA THE
ATMOSPHERE WILL BECOME INCREASINGLY UNSTABLE OVER THE EASTERN HALF
OF THE STATE.

PRECAUTIONS...EMERGENCY MANAGERS OVER THE AREA OF CONCERN SHOULD
CONSIDER SPOTTER ACTIVATION.  CENTRAL AND EASTERN IOWA EMERGENCY
MANAGERS SHOULD BE PREPARED FOR ACTIVATION LATER THIS AFTERNOON AND
EVENING.

 BELLES