Severe Thunderstorm Warning 38, NWS La Crosse, WI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LA CROSSE WI
252 PM CDT SUN JUNE 6 1999

MAIN FOCUS AGAIN THIS AFTERNOON AND EVENING IS SEVERE WEATHER
POTENTIAL.  SVR AND TOR WATCHES IN EFFECT FOR ENTIRE CWA EXCEPT FOR
TAYLOR COUNTY THROUGH THIS EVENING.  GIVEN INCREASING LINEAR SPEED
SHEAR DUE TO H3 JET NOSING INTO CENTRAL IOWA...EXPECT AN ACTIVE
EVENING ON THE RADAR.

THE GOOD NEWS IS THAT ALL MODELS ADVERTISE RIDGING AND GOOD DRYING
AFTER MIDNIGHT AS THE VIGOROUS SHORTWAVE AND UPPER TROF MOVE
NORTHEASTWARD OVERNIGHT AND MONDAY.

MAIN CONCERNS BEYOND TONIGHT FOCUS ON MAX TEMPERATURES NEXT TWO
DAYS.  EVEN WITH HEIGHTS SOMEWHAT DEPRESSED ON MONDAY...850 TEMPS
REMAIN WARM AND GIVEN THE DRYING OCCURRING IN THE LOW LEVELS AND
GOOD MIXING...EXPECT LITTLE COOLING FROM TODAY'S READINGS.  RIDGE
AMPLIFIES ON TUESDAY FOR WARMER CONDITIONS...PROBABLY WELL INTO THE
LOWER TO MIDDLE 90S OVER SOUTHWEST WISCONSIN.

.LSE...NONE.

DEVOIR

IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029-
032>034-041>044-053>055-061-070000-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LA CROSSE WI
1210 PM CDT SUN JUN 6 1999

...MODERATE RISK FOR SEVERE THUNDERSTORMS ACROSS SOUTHEAST
MINNESOTA...NORTHEAST IOWA...AND WESTERN AND CENTRAL WISCONSIN THIS
AFTERNOON AND EVENING...

A VERY MOIST AND UNSTABLE AIR MASS WAS LOCATED OVER THE UPPER
MISSISSIPPI VALLEY THIS AFTERNOON...WITH SOME CONVECTION ALREADY
DEVELOPING. A LINE OF SURFACE CONVERGENCE OVER WESTERN MN WILL MOVE
EAST AS THE AFTERNOON WEARS ON...PROVIDING MORE OF A FOCUS FOR
THUNDERSTORM DEVELOPMENT. WITH THE ATMOSPHERE SO UNSTABLE AND LINGERING
BOUNDARIES FROM EARLY MORNING SHOWERS AND STORMS...STORMS COULD STILL
DEVELOP ALMOST ANYWHERE ACROSS THE AREA. FOR TONIGHT...A DISTURBANCE
ALOFT WILL COUPLE WITH A COLD FRONT PUSHING IN FROM THE
PLAINS...PROVIDING ANOTHER FOCUS FOR POSSIBLE SEVERE THUNDERSTORMS.

THE MAIN SEVERE THREAT WILL BE DAMAGING WINDS AND LARGE HAIL. TRAINING
THUNDERSTORMS WILL ALSO BE POSSIBLE...WHICH COULD CAUSE FLOODING
PROBLEMS TO MANY ALREADY SATURATED LOCATIONS.

SPOTTER GROUPS SHOULD REMAIN ALERT FOR POSSIBLE ACTIVATION THIS
AFTERNOON AND EVENING.

RIECK

IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029-
032>034-041>044-053>055-061-070000-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LA CROSSE WI
1210 PM CDT SUN JUN 6 1999

...MODERATE RISK FOR SEVERE THUNDERSTORMS ACROSS SOUTHEAST
MINNESOTA...NORTHEAST IOWA...AND WESTERN AND CENTRAL WISCONSIN THIS
AFTERNOON AND EVENING...

A VERY MOIST AND UNSTABLE AIR MASS WAS LOCATED OVER THE UPPER
MISSISSIPPI VALLEY THIS AFTERNOON...WITH SOME CONVECTION ALREADY
DEVELOPING. A LINE OF SURFACE CONVERGENCE OVER WESTERN MN WILL MOVE
EAST AS THE AFTERNOON WEARS ON...PROVIDING MORE OF A FOCUS FOR
THUNDERSTORM DEVELOPMENT. WITH THE ATMOSPHERE SO UNSTABLE AND LINGERING
BOUNDARIES FROM EARLY MORNING SHOWERS AND STORMS...STORMS COULD STILL
DEVELOP ALMOST ANYWHERE ACROSS THE AREA. FOR TONIGHT...A DISTURBANCE
ALOFT WILL COUPLE WITH A COLD FRONT PUSHING IN FROM THE
PLAINS...PROVIDING ANOTHER FOCUS FOR POSSIBLE SEVERE THUNDERSTORMS.

THE MAIN SEVERE THREAT WILL BE DAMAGING WINDS AND LARGE HAIL. TRAINING
THUNDERSTORMS WILL ALSO BE POSSIBLE...WHICH COULD CAUSE FLOODING
PROBLEMS TO MANY ALREADY SATURATED LOCATIONS.

SPOTTER GROUPS SHOULD REMAIN ALERT FOR POSSIBLE ACTIVATION THIS
AFTERNOON AND EVENING.

RIECK