442 WWUS35 KSGF 031920 AMD SPSSGF KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-041100- HAZARDOUS WEATHER OUTLOOK...UPDATED. NATIONAL WEATHER SERVICE SPRINGFIELD MO 219 PM CDT THU MAY 3 2001 ...WIDELY SCATTERED SHOWERS OR THUNDERSTORMS THIS AFTERNOON... ...SCATTERED THUNDERSTORMS POSSIBLE TONIGHT... FOR THIS AFTERNOON AND EARLY EVENING... DAYTIME HEATING OF AN UNSTABLE AIR MASS ALONG WITH A WEAK SURFACE TROUGH...OF LOW PRESSURE...THAT WAS MOVING NORTHEAST...FROM SOUTHWEST MISSOURI...WILL CAUSE WIDELY SCATTERED SHOWERS OR THUNDERSTORMS. THE SHOWERS OR THUNDERSTORMS WILL CAUSE A BRIEF PERIOD OF HEAVY RAIN AND CLOUD TO GROUND LIGHTNING. HOWEVER NO ORGANIZED SEVERE THUNDERSTORMS ARE EXPECTED. FOR TONIGHT... A COLD FRONT WAS LOCATED FROM NORTHERN MISSOURI THROUGH EASTERN AND SOUTHERN KANSAS. THIS FRONT WILL BE THE MAIN FOCUS FOR SHOWERS AND THUNDERSTORMS TO DEVELOP THIS AFTERNOON AND CONTINUE INTO TONIGHT. SOME OF THESE THUNDERSTORMS MAY MOVE INTO SOUTHEAST KANSAS AND PORTIONS OF WESTERN MISSOURI OVERNIGHT...BUT SEVERE THUNDERSTORMS ARE NOT EXPECTED. SPOTTER ACTIVATION IS NOT EXPECTED THROUGH TONIGHT. .EXTENDED OUTLOOK... SHOWERS AND THUNDERSTORMS WILL BECOMING MORE LIKELY OVER THE WEEKEND AND THROUGH EARLY NEXT WEEK. THIS IS DUE TO AN UPPER LEVEL DISTURBANCE THAT WILL MOVE INTO THE PLAINS...WHILE PUSHING A COLD FRONT EAST TOWARDS MISSOURI. THE COMBINATION OF THESE TWO FEATURES ALONG WITH UNSTABLE AIR...WILL INCREASE THE PROBABILITY OF STRONG TO SEVERE THUNDERSTORMS OVER THE WEEKEND. SPOTTERS AND EMERGENCY MANAGERS SHOULD CONTINUE TO MONITOR THE LATEST WEATHER INFORMATION FROM THE NATIONAL WEATHER SERVICE DURING THIS WEEKEND. D.STEINMETZ  442 WWUS35 KSGF 031920 AMD SPSSGF KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-041100- HAZARDOUS WEATHER OUTLOOK...UPDATED. NATIONAL WEATHER SERVICE SPRINGFIELD MO 219 PM CDT THU MAY 3 2001 ...WIDELY SCATTERED SHOWERS OR THUNDERSTORMS THIS AFTERNOON... ...SCATTERED THUNDERSTORMS POSSIBLE TONIGHT... FOR THIS AFTERNOON AND EARLY EVENING... DAYTIME HEATING OF AN UNSTABLE AIR MASS ALONG WITH A WEAK SURFACE TROUGH...OF LOW PRESSURE...THAT WAS MOVING NORTHEAST...FROM SOUTHWEST MISSOURI...WILL CAUSE WIDELY SCATTERED SHOWERS OR THUNDERSTORMS. THE SHOWERS OR THUNDERSTORMS WILL CAUSE A BRIEF PERIOD OF HEAVY RAIN AND CLOUD TO GROUND LIGHTNING. HOWEVER NO ORGANIZED SEVERE THUNDERSTORMS ARE EXPECTED. FOR TONIGHT... A COLD FRONT WAS LOCATED FROM NORTHERN MISSOURI THROUGH EASTERN AND SOUTHERN KANSAS. THIS FRONT WILL BE THE MAIN FOCUS FOR SHOWERS AND THUNDERSTORMS TO DEVELOP THIS AFTERNOON AND CONTINUE INTO TONIGHT. SOME OF THESE THUNDERSTORMS MAY MOVE INTO SOUTHEAST KANSAS AND PORTIONS OF WESTERN MISSOURI OVERNIGHT...BUT SEVERE THUNDERSTORMS ARE NOT EXPECTED. SPOTTER ACTIVATION IS NOT EXPECTED THROUGH TONIGHT. .EXTENDED OUTLOOK... SHOWERS AND THUNDERSTORMS WILL BECOMING MORE LIKELY OVER THE WEEKEND AND THROUGH EARLY NEXT WEEK. THIS IS DUE TO AN UPPER LEVEL DISTURBANCE THAT WILL MOVE INTO THE PLAINS...WHILE PUSHING A COLD FRONT EAST TOWARDS MISSOURI. THE COMBINATION OF THESE TWO FEATURES ALONG WITH UNSTABLE AIR...WILL INCREASE THE PROBABILITY OF STRONG TO SEVERE THUNDERSTORMS OVER THE WEEKEND. SPOTTERS AND EMERGENCY MANAGERS SHOULD CONTINUE TO MONITOR THE LATEST WEATHER INFORMATION FROM THE NATIONAL WEATHER SERVICE DURING THIS WEEKEND. D.STEINMETZ